feat: Initial commit of PDF Tools project

server/index.js

@@ -0,0 +1,82 @@
+const express = require('express');
+const cors = require('cors');
+const helmet = require('helmet');
+const rateLimit = require('express-rate-limit');
+const path = require('path');
+const dotenv = require('dotenv');
+
+// 导入路由
+const fileRoutes = require('./routes/files');
+const conversionRoutes = require('./routes/conversion');
+const userRoutes = require('./routes/users');
+const systemRoutes = require('./routes/system');
+
+// 导入中间件
+const errorHandler = require('./middleware/errorHandler');
+const authMiddleware = require('./middleware/auth');
+
+// 加载环境变量
+dotenv.config();
+
+const app = express();
+const PORT = process.env.PORT || 3001;
+
+// 安全中间件
+app.use(helmet());
+
+// CORS配置
+app.use(cors({
+  origin: process.env.CLIENT_URL || 'http://localhost:3000',
+  credentials: true
+}));
+
+// 请求限流
+const limiter = rateLimit({
+  windowMs: 15 * 60 * 1000, // 15分钟
+  max: 100, // 每个IP最多100个请求
+  message: '请求过于频繁，请稍后再试'
+});
+app.use('/api/', limiter);
+
+// 解析请求体
+app.use(express.json({ limit: '50mb' }));
+app.use(express.urlencoded({ extended: true, limit: '50mb' }));
+
+// 静态文件服务
+app.use('/uploads', express.static(path.join(__dirname, 'uploads')));
+
+// API路由
+app.use('/api/files', fileRoutes);
+app.use('/api/convert', conversionRoutes);
+app.use('/api/users', userRoutes);
+app.use('/api/system', systemRoutes);
+
+// 健康检查端点
+app.get('/health', (req, res) => {
+  res.json({
+    status: 'OK',
+    timestamp: new Date().toISOString(),
+    uptime: process.uptime(),
+    memory: process.memoryUsage()
+  });
+});
+
+// 错误处理中间件
+app.use(errorHandler);
+
+// 404处理
+app.use('*', (req, res) => {
+  res.status(404).json({
+    success: false,
+    message: '接口不存在',
+    timestamp: new Date().toISOString()
+  });
+});
+
+// 启动服务器
+app.listen(PORT, () => {
+  console.log(`🚀 PDF转换工具服务器运行在端口 ${PORT}`);
+  console.log(`📊 健康检查: http://localhost:${PORT}/health`);
+});
+
+module.exports = app;