添加 IntelliJ IDEA 项目配置文件

backend/app.js

@@ -0,0 +1,78 @@
+const express = require('express')
+const cors = require('cors')
+const helmet = require('helmet')
+const morgan = require('morgan')
+const rateLimit = require('express-rate-limit')
+const compression = require('compression')
+require('dotenv').config()
+
+const app = express()
+
+// 中间件配置
+app.use(helmet()) // 安全头
+app.use(cors()) // 跨域
+app.use(compression()) // 压缩
+app.use(morgan('combined')) // 日志
+app.use(express.json({ limit: '10mb' }))
+app.use(express.urlencoded({ extended: true, limit: '10mb' }))
+
+// 限流
+const limiter = rateLimit({
+  windowMs: 15 * 60 * 1000, // 15 分钟
+  max: 100, // 限制每个IP最多100个请求
+  message: {
+    success: false,
+    message: '请求过于频繁，请稍后重试'
+  }
+})
+app.use('/api', limiter)
+
+// 健康检查
+app.get('/health', (req, res) => {
+  res.json({
+    success: true,
+    message: '服务运行正常',
+    timestamp: new Date().toISOString(),
+    version: process.env.npm_package_version || '1.0.0'
+  })
+})
+
+// API 路由
+app.use('/api/auth', require('./routes/auth'))
+app.use('/api/users', require('./routes/users'))
+app.use('/api/orders', require('./routes/orders'))
+app.use('/api/suppliers', require('./routes/suppliers'))
+app.use('/api/transport', require('./routes/transport'))
+app.use('/api/finance', require('./routes/finance'))
+app.use('/api/quality', require('./routes/quality'))
+
+// 404 处理
+app.use((req, res) => {
+  res.status(404).json({
+    success: false,
+    message: '接口不存在',
+    path: req.path
+  })
+})
+
+// 错误处理中间件
+app.use((err, req, res, next) => {
+  console.error('Error:', err)
+  
+  res.status(err.status || 500).json({
+    success: false,
+    message: err.message || '服务器内部错误',
+    timestamp: new Date().toISOString(),
+    ...(process.env.NODE_ENV === 'development' && { stack: err.stack })
+  })
+})
+
+const PORT = process.env.PORT || 3000
+
+app.listen(PORT, () => {
+  console.log(`🚀 服务器启动成功`)
+  console.log(`📱 运行环境: ${process.env.NODE_ENV || 'development'}`)
+  console.log(`🌐 访问地址: http://localhost:${PORT}`)
+  console.log(`📊 健康检查: http://localhost:${PORT}/health`)
+  console.log(`📚 API文档: http://localhost:${PORT}/api/docs`)
+})