Struts2 の [S2-016][S2-017] 影響チェック

検証 : Struts2-core-2.3.15+convention plugin

```java:IndexAction
package s2016.action;

import org.apache.struts2.convention.annotation.Action;
import org.apache.struts2.convention.annotation.Namespace;
import org.apache.struts2.convention.annotation.ParentPackage;
import org.apache.struts2.convention.annotation.Result;
import org.apache.struts2.convention.annotation.Results;

import com.opensymphony.xwork2.ActionSupport;

@SuppressWarnings({ "javadoc", "serial" })
@Namespace("/")
@ParentPackage("struts-default")
@Action("index")
@Results({
		@Result(name = "success", location = "index.html"),
		@Result(location = "index.html"),
})
public class IndexAction extends ActionSupport {

}
```

```html:テスト用HTML+結果
<html>
	<body>
		<h1>S2-016/S2-017 check</h1>
		<h2>A-GET-action</h2>
		<dl>
			<dt><a href="?action:%25{1}">test</a></dt>
			<dt><a href="?action:%25%7b1%7d">test</a></dt>
			<dd>(2.3.15.0) -> html表示</dd>
			<dd>(2.3.15.1) -> html表示</dd>
		</dl>
		<h2>A-GET-redirect</h2>
		<dl>
			<dt><a href="?redirect:%25{1}">test</a></dt>
			<dt><a href="?redirect:%25%7b1%7d">test</a></dt>
			<dd>(2.3.15.0) -> 画面遷移 NG</dd>
			<dd>(2.3.15.1) -> 遷移せず OK</dd>
		</dl>
		<h2>A-GET-redirectAction</h2>
		<dl>
			<dt><a href="?redirectAction:%25{1}">test</a></dt>
			<dt><a href="?redirectAction:%25%7b1%7d">test</a></dt>
			<dd>(2.3.15.0) -> 画面遷移 NG</dd>
			<dd>(2.3.15.1) -> 遷移せず OK</dd>
		</dl>
		<h2>A-GET-direct</h2>
		<dl>
			<dt><a href="/s2-016/%25{1}">test</a></dt>
			<dd>(2.3.15.0) -> There is no Action mapped for namespace [/] and action name [1] associated with context path [/s2-016].</dd>
			<dd>(2.3.15.1) -> There is no Action mapped for namespace [/] and action name [1] associated with context path [/s2-016].</dd>
			<dd>変化しない？？</dd>
		</dl>
		<h2>A-GET-direct</h2>
		<dl>
			<dt><a href="/s2-016/%25{1}.action">test</a></dt>
			<dd>(2.3.15.0) -> There is no Action mapped for namespace [/] and action name [1] associated with context path [/s2-016].</dd>
			<dd>(2.3.15.1) -> There is no Action mapped for namespace [/] and action name [1] associated with context path [/s2-016].</dd>
			<dd>変化しない？？</dd>
		</dl>
		<h2>GET-Form(x-www-form-urlencoded)</h2>
		<form enctype="application/x-www-form-urlencoded">
			<table>
				<tr>
					<th>
						<input type="submit" name="action:${1}">
						<input type="submit" name="action:%{1}">
					</th>
					<td>(2.3.15.0) -> html表示</td>
					<td>(2.3.15.1) -> html表示</td>
				</tr>
				<tr>
					<th>
						<input type="submit" name="redirect:${1}">
						<input type="submit" name="redirect:%{1}">
					</th>
					<td>(2.3.15.0) -> There is no Action mapped for namespace [/] and action name [1] associated with context path [/s2-016]</td>
					<td>(2.3.15.1) -> There is no Action mapped for namespace [/] and action name [1] associated with context path [/s2-016]</td>
				</tr>
				<tr>
					<th>
						<input type="submit" name="redirectAction:${1}">
						<input type="submit" name="redirectAction:%{1}">
					</th>
					<td>(2.3.15.0) -> There is no Action mapped for namespace [/] and action name [1] associated with context path [/s2-016]</td>
					<td>(2.3.15.1) -> There is no Action mapped for namespace [/] and action name [1] associated with context path [/s2-016]</td>
				</tr>
			</table>
		</form>
		<h2>POST-Form(x-www-form-urlencoded)</h2>
		<form enctype="application/x-www-form-urlencoded" method="post">
			<table>
				<tr>
					<th>
						<input type="submit" name="action:${1}">
						<input type="submit" name="action:%{1}">
					</th>
					<td>(2.3.15.0) -> html表示</td>
					<td>(2.3.15.1) -> html表示</td>
				</tr>
				<tr>
					<th>
						<input type="submit" name="redirect:${1}">
						<input type="submit" name="redirect:%{1}">
					</th>
					<td>(2.3.15.0) -> There is no Action mapped for namespace [/] and action name [1] associated with context path [/s2-016]</td>
					<td>(2.3.15.1) -> There is no Action mapped for namespace [/] and action name [1] associated with context path [/s2-016]</td>
				</tr>
				<tr>
					<th>
						<input type="submit" name="redirectAction:${1}">
						<input type="submit" name="redirectAction:%{1}">
					</th>
					<td>(2.3.15.0) -> There is no Action mapped for namespace [/] and action name [1] associated with context path [/s2-016]</td>
					<td>(2.3.15.1) -> There is no Action mapped for namespace [/] and action name [1] associated with context path [/s2-016]</td>
				</tr>
			</table>
		</form>
	</body>
</html>
```

URL組み込み式がまだ実行されている？
もう少し確認

```html:
<dl>
 <dt><a href="/s2-016/${1+1}">test</a></dt>
 <dd>(2.3.15.0) -> There is no Action mapped for namespace [/] and action name [11] associated with context path [/s2-016].
 <dd>(2.3.15.1) -> There is no Action mapped for namespace [/] and action name [11] associated with context path [/s2-016].
</dl>

```
URLに含まれる文字列は置換されてるのか・・