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Dockerfile

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+# 使用node镜像
+FROM node:20
+
+# 创建工作目录
+WORKDIR /app
+
+# 将本地所有文件复制到工作目录
+COPY . .
+
+#安装依赖
+RUN npm install -g pnpm
+RUN pnpm install express
+
+# 暴露端口
+EXPOSE 7860
+
+# 启动！
+CMD ["node", "app.js"]

app.js

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+const express = require('express');
+const fs = require('fs');
+const path = require('path');
+
+const app = express();
+const port = 7860;
+const imageFolderPath = path.join(__dirname, 'api');
+
+app.get('/', (req, res) => {
+ res.send('api');
+});
+
+app.get('/r18', (req, res) => {
+ const r18FolderPath = path.join(__dirname, 'api', 'r18');
+ const images = fs.readdirSync(r18FolderPath);
+ const randomImage = getRandomImage(images);
+ res.sendFile(path.join(r18FolderPath, randomImage));
+});
+
+function getRandomImage(images) {
+ const randomIndex = Math.floor(Math.random() * images.length);
+ return images[randomIndex];
+}
+
+app.listen(port, () => {
+ console.log(`App listening on port ${port}!`);
+});