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common-expressjs
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weijw 5 months ago
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  1. 1 0
      .dockerignore
  2. 1 0
      .gitignore
  3. 18 0
      Dockerfile
  4. 11 0
      app/src/public/index.html
  5. 123 0
      app/src/server.js
  6. 123 0
      src/server.js

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.dockerignore
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+*.tar

+ 1 - 0
.gitignore
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+*.tar

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Dockerfile
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+FROM node:18.20.3-alpine

+

+# 设置工作目录

+WORKDIR /app

+

+# 安装项目依赖

+RUN npm install express --save

+

+# 复制项目文件到工作目录

+COPY ./src /app/src

+

+# 暴露应用监听的端口

+EXPOSE 3000

+

+VOLUME /app/src

+

+# 启动应用

+CMD ["node", "src/server.js"]

+ 11 - 0
app/src/public/index.html
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+<!DOCTYPE html>

+<html lang="en">

+<head>

+    <meta charset="UTF-8">

+    <meta name="viewport" content="width=device-width, initial-scale=1.0">

+    <title>Document</title>

+</head>

+<body>

+    <h2>hello~~</h2>

+</body>

+</html>

+ 123 - 0
app/src/server.js
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+const express = require('express');

+const path = require('path');

+// const multer = require('multer');

+// const { v4: uuidv4 } = require('uuid');

+// const fs = require('fs');

+// const fsp = require('fs/promises');

+

+const app = express();

+

+// // 示例中间件，用于统一响应格式

+// function jsonResponseMiddleware(req, res, next) {

+//     // 保存原始的res.json方法

+//     res.originalJson = res.json;

+

+//     // 重写res.json方法

+//     res.json = function (data) {

+//         const responseFormat = {

+//             code: res.statusCode, // 响应状态码

+//             message: res.statusMessage || 'Success', // 状态消息

+//             data: data, // 实际数据

+//         };

+

+//         // 调用原始的res.json方法，发送格式化的响应

+//         res.originalJson.call(this, responseFormat);

+//     };

+

+//     next();

+// }

+

+// // 使用jsonResponseMiddleware中间件

+// app.use(jsonResponseMiddleware);

+

+// 配置静态文件中间件，指定静态文件所在目录

+app.use('/', express.static(path.join(__dirname, 'public')));

+app.use('/api/image', express.static(path.join(__dirname, 'images')));

+app.use('/api/data', express.static(path.join(__dirname, 'data')));

+

+app.get('/api/hello', (req, res) => {

+    res.json({ 'Hello': 'World!' });

+});

+

+// // 设置 Multer 存储引擎

+// const storage = multer.diskStorage({

+//     destination: (req, file, cb) => {

+//         const fileId = uuidv4().replace(/-/g, '');

+//         req.fileId = fileId; // 将 fileId 存储在请求对象中

+//         req.fileName = file.originalname;

+

+//         const uploadPath = path.join(__dirname, 'upload', fileId);

+//         if (!fs.existsSync(uploadPath)) {

+//             fs.mkdirSync(uploadPath);

+//         }

+//         cb(null, uploadPath);

+//     },

+//     filename: (req, file, cb) => {

+//         cb(null, file.originalname);

+//     }

+// });

+

+// const upload = multer({ storage: storage });

+

+// app.get('/api/error', (req, res) => {

+//     throw 'file not found'

+// });

+

+// // 文件上传接口

+// app.post('/api/file/upload', upload.single('file'), (req, res) => {

+//     if (!req.file) {

+//         return res.status(400).send('No file uploaded');

+//     }

+

+//     // 返回文件的 fileId

+//     res.json({

+//         fileId: req.fileId,

+//         fileName: req.fileName,

+//         fileSize: req.fileSize,

+//     });

+// });

+

+// // 文件下载接口

+// app.get('/api/file/download/:fileId', async (req, res) => {

+//     const fileId = req.params.fileId;

+//     const dirPath = path.join(__dirname, 'upload', fileId);

+//     const files = await fsp.readdir(dirPath);

+//     let firstFile = '';

+

+//     for (const file of files) {

+//         const filePath = path.join(dirPath, file);

+//         const stat = await fsp.stat(filePath);

+

+//         if (stat.isFile()) {

+//             firstFile = filePath;

+//             break;

+//         }

+//     }

+

+//     if (firstFile == '') {

+//         return res.status(404).send('File not found');

+//     }

+

+//     // 发送文件

+//     res.download(firstFile, (err) => {

+//         if (err) {

+//             console.error(err);

+//             res.status(500).send('Error downloading the file');

+//         }

+//     });

+// });

+

+// // 错误处理

+// app.use((err, req, res, next) => {

+//     res.status(err.status || 500);

+//     res.originalJson({

+//         code: err.status || 500,

+//         message: err.message || err || 'Internal Server Error',

+//     });

+// });

+

+// 启动服务器

+const PORT = process.env.PORT || 3000;

+app.listen(PORT, () => {

+    console.log(`Server is running on port ${PORT}`);

+});

+ 123 - 0
src/server.js
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+const express = require('express');

+const path = require('path');

+// const multer = require('multer');

+// const { v4: uuidv4 } = require('uuid');

+// const fs = require('fs');

+// const fsp = require('fs/promises');

+

+const app = express();

+

+// // 示例中间件，用于统一响应格式

+// function jsonResponseMiddleware(req, res, next) {

+//     // 保存原始的res.json方法

+//     res.originalJson = res.json;

+

+//     // 重写res.json方法

+//     res.json = function (data) {

+//         const responseFormat = {

+//             code: res.statusCode, // 响应状态码

+//             message: res.statusMessage || 'Success', // 状态消息

+//             data: data, // 实际数据

+//         };

+

+//         // 调用原始的res.json方法，发送格式化的响应

+//         res.originalJson.call(this, responseFormat);

+//     };

+

+//     next();

+// }

+

+// // 使用jsonResponseMiddleware中间件

+// app.use(jsonResponseMiddleware);

+

+// 配置静态文件中间件，指定静态文件所在目录

+app.use('/', express.static(path.join(__dirname, 'public')));

+app.use('/api/image', express.static(path.join(__dirname, 'images')));

+app.use('/api/data', express.static(path.join(__dirname, 'data')));

+

+app.get('/api/hello', (req, res) => {

+    res.json({ 'Hello': 'World!' });

+});

+

+// // 设置 Multer 存储引擎

+// const storage = multer.diskStorage({

+//     destination: (req, file, cb) => {

+//         const fileId = uuidv4().replace(/-/g, '');

+//         req.fileId = fileId; // 将 fileId 存储在请求对象中

+//         req.fileName = file.originalname;

+

+//         const uploadPath = path.join(__dirname, 'upload', fileId);

+//         if (!fs.existsSync(uploadPath)) {

+//             fs.mkdirSync(uploadPath);

+//         }

+//         cb(null, uploadPath);

+//     },

+//     filename: (req, file, cb) => {

+//         cb(null, file.originalname);

+//     }

+// });

+

+// const upload = multer({ storage: storage });

+

+// app.get('/api/error', (req, res) => {

+//     throw 'file not found'

+// });

+

+// // 文件上传接口

+// app.post('/api/file/upload', upload.single('file'), (req, res) => {

+//     if (!req.file) {

+//         return res.status(400).send('No file uploaded');

+//     }

+

+//     // 返回文件的 fileId

+//     res.json({

+//         fileId: req.fileId,

+//         fileName: req.fileName,

+//         fileSize: req.fileSize,

+//     });

+// });

+

+// // 文件下载接口

+// app.get('/api/file/download/:fileId', async (req, res) => {

+//     const fileId = req.params.fileId;

+//     const dirPath = path.join(__dirname, 'upload', fileId);

+//     const files = await fsp.readdir(dirPath);

+//     let firstFile = '';

+

+//     for (const file of files) {

+//         const filePath = path.join(dirPath, file);

+//         const stat = await fsp.stat(filePath);

+

+//         if (stat.isFile()) {

+//             firstFile = filePath;

+//             break;

+//         }

+//     }

+

+//     if (firstFile == '') {

+//         return res.status(404).send('File not found');

+//     }

+

+//     // 发送文件

+//     res.download(firstFile, (err) => {

+//         if (err) {

+//             console.error(err);

+//             res.status(500).send('Error downloading the file');

+//         }

+//     });

+// });

+

+// // 错误处理

+// app.use((err, req, res, next) => {

+//     res.status(err.status || 500);

+//     res.originalJson({

+//         code: err.status || 500,

+//         message: err.message || err || 'Internal Server Error',

+//     });

+// });

+

+// 启动服务器

+const PORT = process.env.PORT || 3000;

+app.listen(PORT, () => {

+    console.log(`Server is running on port ${PORT}`);

+});