init commit

.gitignore

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+node_modules/
+.env
+uploads/*
+!uploads/.gitkeep
+*.log
+.DS_Store
+

README.md

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+# 机型信息管理系统 - 后端API
+
+## 技术栈
+- Node.js
+- Express
+- JWT认证
+- bcryptjs密码加密
+
+## 安装依赖
+```bash
+npm install
+```
+
+## 运行项目
+```bash
+# 开发模式（需要安装nodemon）
+npm run dev
+
+# 生产模式
+npm start
+```
+
+## 默认登录信息
+- 用户名: `admin`
+- 密码: `admin123`
+
+## API接口
+
+### 认证接口
+- `POST /api/auth/login` - 用户登录
+- `GET /api/auth/verify` - 验证token
+
+### 机型接口（需要认证）
+- `GET /api/aircraft/list` - 获取机型列表
+- `GET /api/aircraft/:id` - 获取机型详情
+
+### PDF资料接口（需要认证）
+- `GET /api/pdf/aircraft/:aircraftId` - 获取指定机型的PDF资料
+- `GET /api/pdf/list` - 获取所有PDF资料
+- `GET /api/pdf/file/:id` - 获取PDF文件信息
+
+## 环境变量
+创建 `.env` 文件并设置：
+```
+PORT=3001
+JWT_SECRET=your-secret-key-change-in-production
+```
+

middleware/auth.js

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+const jwt = require('jsonwebtoken');
+
+const JWT_SECRET = process.env.JWT_SECRET || 'your-secret-key-change-in-production';
+
+// 验证JWT token的中间件
+const authenticateToken = (req, res, next) => {
+  const authHeader = req.headers['authorization'];
+  const token = authHeader && authHeader.split(' ')[1];
+
+  if (!token) {
+    return res.status(401).json({ error: '未提供访问令牌' });
+  }
+
+  jwt.verify(token, JWT_SECRET, (err, user) => {
+    if (err) {
+      return res.status(403).json({ error: '无效的访问令牌' });
+    }
+    req.user = user;
+    next();
+  });
+};
+
+module.exports = {
+  authenticateToken,
+  JWT_SECRET
+};
+

package.json

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+{
+  "name": "department-api",
+  "version": "1.0.0",
+  "description": "机型信息管理系统后端API",
+  "main": "server.js",
+  "scripts": {
+    "start": "node server.js",
+    "dev": "nodemon server.js"
+  },
+  "keywords": ["api", "express", "nodejs"],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "express": "^4.18.2",
+    "cors": "^2.8.5",
+    "jsonwebtoken": "^9.0.2",
+    "bcryptjs": "^2.4.3",
+    "dotenv": "^16.3.1",
+    "multer": "^1.4.5-lts.1"
+  },
+  "devDependencies": {
+    "nodemon": "^3.0.1"
+  }
+}
+

routes/aircraft.js

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+const express = require('express');
+const router = express.Router();
+
+// 模拟机型数据库（实际项目中应使用真实数据库）
+const aircrafts = [
+  {
+    id: 1,
+    name: '波音737',
+    code: 'B737',
+    manufacturer: '波音公司',
+    type: '窄体客机',
+    description: '波音737是波音公司生产的中短程双发窄体客机，是全球最畅销的商用喷气式客机。',
+    specifications: {
+      maxPassengers: 215,
+      maxRange: '5700km',
+      cruiseSpeed: '840km/h',
+      length: '39.5m',
+      wingspan: '35.8m'
+    }
+  },
+  {
+    id: 2,
+    name: '空客A320',
+    code: 'A320',
+    manufacturer: '空中客车公司',
+    type: '窄体客机',
+    description: '空客A320是空中客车公司生产的单通道窄体客机，是空客最成功的机型之一。',
+    specifications: {
+      maxPassengers: 180,
+      maxRange: '6150km',
+      cruiseSpeed: '840km/h',
+      length: '37.57m',
+      wingspan: '35.8m'
+    }
+  },
+  {
+    id: 3,
+    name: '波音787',
+    code: 'B787',
+    manufacturer: '波音公司',
+    type: '宽体客机',
+    description: '波音787梦想客机是波音公司生产的双发宽体中远程客机，采用大量复合材料。',
+    specifications: {
+      maxPassengers: 330,
+      maxRange: '15700km',
+      cruiseSpeed: '913km/h',
+      length: '57m',
+      wingspan: '60m'
+    }
+  },
+  {
+    id: 4,
+    name: '空客A350',
+    code: 'A350',
+    manufacturer: '空中客车公司',
+    type: '宽体客机',
+    description: '空客A350是空中客车公司生产的双发宽体远程客机，采用先进材料和设计。',
+    specifications: {
+      maxPassengers: 440,
+      maxRange: '15000km',
+      cruiseSpeed: '903km/h',
+      length: '66.8m',
+      wingspan: '64.75m'
+    }
+  }
+];
+
+// 获取所有机型列表
+router.get('/list', (req, res) => {
+  try {
+    const { search } = req.query;
+    
+    let filteredAircrafts = aircrafts;
+    if (search) {
+      const searchLower = search.toLowerCase();
+      filteredAircrafts = aircrafts.filter(aircraft => 
+        aircraft.name.toLowerCase().includes(searchLower) ||
+        aircraft.code.toLowerCase().includes(searchLower) ||
+        aircraft.manufacturer.toLowerCase().includes(searchLower)
+      );
+    }
+
+    res.json({
+      success: true,
+      data: filteredAircrafts.map(aircraft => ({
+        id: aircraft.id,
+        name: aircraft.name,
+        code: aircraft.code,
+        manufacturer: aircraft.manufacturer,
+        type: aircraft.type
+      }))
+    });
+  } catch (error) {
+    console.error('获取机型列表错误:', error);
+    res.status(500).json({ error: '服务器内部错误' });
+  }
+});
+
+// 获取单个机型详细信息
+router.get('/:id', (req, res) => {
+  try {
+    const id = parseInt(req.params.id);
+    const aircraft = aircrafts.find(a => a.id === id);
+
+    if (!aircraft) {
+      return res.status(404).json({ error: '机型不存在' });
+    }
+
+    res.json({
+      success: true,
+      data: aircraft
+    });
+  } catch (error) {
+    console.error('获取机型详情错误:', error);
+    res.status(500).json({ error: '服务器内部错误' });
+  }
+});
+
+module.exports = router;
+

routes/auth.js

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+const express = require('express');
+const bcrypt = require('bcryptjs');
+const jwt = require('jsonwebtoken');
+const { JWT_SECRET } = require('../middleware/auth');
+
+const router = express.Router();
+
+// 模拟用户数据库（实际项目中应使用真实数据库）
+const users = [
+  {
+    id: 1,
+    username: 'admin',
+    password: '$2a$10$rOzJqJqJqJqJqJqJqJqJqOqJqJqJqJqJqJqJqJqJqJqJqJqJqJq', // password: admin123
+    name: '管理员'
+  }
+];
+
+// 初始化默认用户（密码：admin123）
+async function initDefaultUser() {
+  const hashedPassword = await bcrypt.hash('admin123', 10);
+  users[0].password = hashedPassword;
+}
+initDefaultUser();
+
+// 登录接口
+router.post('/login', async (req, res) => {
+  try {
+    const { username, password } = req.body;
+
+    if (!username || !password) {
+      return res.status(400).json({ error: '用户名和密码不能为空' });
+    }
+
+    // 查找用户
+    const user = users.find(u => u.username === username);
+    if (!user) {
+      return res.status(401).json({ error: '用户名或密码错误' });
+    }
+
+    // 验证密码
+    const isValidPassword = await bcrypt.compare(password, user.password);
+    if (!isValidPassword) {
+      return res.status(401).json({ error: '用户名或密码错误' });
+    }
+
+    // 生成JWT token
+    const token = jwt.sign(
+      { id: user.id, username: user.username, name: user.name },
+      JWT_SECRET,
+      { expiresIn: '24h' }
+    );
+
+    res.json({
+      success: true,
+      token,
+      user: {
+        id: user.id,
+        username: user.username,
+        name: user.name
+      }
+    });
+  } catch (error) {
+    console.error('登录错误:', error);
+    res.status(500).json({ error: '服务器内部错误' });
+  }
+});
+
+// 验证token接口
+router.get('/verify', async (req, res) => {
+  try {
+    const authHeader = req.headers['authorization'];
+    const token = authHeader && authHeader.split(' ')[1];
+
+    if (!token) {
+      return res.status(401).json({ error: '未提供访问令牌' });
+    }
+
+    jwt.verify(token, JWT_SECRET, (err, user) => {
+      if (err) {
+        return res.status(403).json({ error: '无效的访问令牌' });
+      }
+      res.json({ success: true, user });
+    });
+  } catch (error) {
+    res.status(500).json({ error: '服务器内部错误' });
+  }
+});
+
+module.exports = router;
+

routes/pdf.js

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+const express = require('express');
+const router = express.Router();
+const path = require('path');
+const fs = require('fs');
+
+// 模拟PDF资料数据库（实际项目中应使用真实数据库）
+const pdfMaterials = [
+  {
+    id: 1,
+    aircraftId: 1,
+    title: '波音737操作手册',
+    fileName: 'B737_manual.pdf',
+    description: '波音737详细操作手册',
+    uploadDate: '2024-01-15',
+    fileSize: '2.5MB'
+  },
+  {
+    id: 2,
+    aircraftId: 1,
+    title: '波音737维护手册',
+    fileName: 'B737_maintenance.pdf',
+    description: '波音737维护保养手册',
+    uploadDate: '2024-01-20',
+    fileSize: '3.2MB'
+  },
+  {
+    id: 3,
+    aircraftId: 2,
+    title: '空客A320操作手册',
+    fileName: 'A320_manual.pdf',
+    description: '空客A320详细操作手册',
+    uploadDate: '2024-02-01',
+    fileSize: '2.8MB'
+  },
+  {
+    id: 4,
+    aircraftId: 2,
+    title: '空客A320技术规格',
+    fileName: 'A320_specs.pdf',
+    description: '空客A320技术规格说明',
+    uploadDate: '2024-02-05',
+    fileSize: '1.5MB'
+  },
+  {
+    id: 5,
+    aircraftId: 3,
+    title: '波音787操作手册',
+    fileName: 'B787_manual.pdf',
+    description: '波音787详细操作手册',
+    uploadDate: '2024-02-10',
+    fileSize: '4.1MB'
+  },
+  {
+    id: 6,
+    aircraftId: 4,
+    title: '空客A350操作手册',
+    fileName: 'A350_manual.pdf',
+    description: '空客A350详细操作手册',
+    uploadDate: '2024-02-15',
+    fileSize: '3.9MB'
+  }
+];
+
+// 获取机型的PDF资料列表
+router.get('/aircraft/:aircraftId', (req, res) => {
+  try {
+    const aircraftId = parseInt(req.params.aircraftId);
+    const { search } = req.query;
+
+    let materials = pdfMaterials.filter(m => m.aircraftId === aircraftId);
+
+    if (search) {
+      const searchLower = search.toLowerCase();
+      materials = materials.filter(m => 
+        m.title.toLowerCase().includes(searchLower) ||
+        m.description.toLowerCase().includes(searchLower)
+      );
+    }
+
+    res.json({
+      success: true,
+      data: materials
+    });
+  } catch (error) {
+    console.error('获取PDF资料错误:', error);
+    res.status(500).json({ error: '服务器内部错误' });
+  }
+});
+
+// 获取所有PDF资料
+router.get('/list', (req, res) => {
+  try {
+    const { search } = req.query;
+
+    let materials = pdfMaterials;
+
+    if (search) {
+      const searchLower = search.toLowerCase();
+      materials = materials.filter(m => 
+        m.title.toLowerCase().includes(searchLower) ||
+        m.description.toLowerCase().includes(searchLower)
+      );
+    }
+
+    res.json({
+      success: true,
+      data: materials
+    });
+  } catch (error) {
+    console.error('获取PDF资料列表错误:', error);
+    res.status(500).json({ error: '服务器内部错误' });
+  }
+});
+
+// 获取PDF文件URL（实际项目中应该检查文件是否存在）
+router.get('/file/:id', (req, res) => {
+  try {
+    const id = parseInt(req.params.id);
+    const material = pdfMaterials.find(m => m.id === id);
+
+    if (!material) {
+      return res.status(404).json({ error: '资料不存在' });
+    }
+
+    // 返回PDF文件的URL
+    // 实际项目中，这里应该检查文件是否真实存在
+    const fileUrl = `/uploads/${material.fileName}`;
+    
+    res.json({
+      success: true,
+      data: {
+        id: material.id,
+        title: material.title,
+        fileUrl: fileUrl,
+        fileName: material.fileName
+      }
+    });
+  } catch (error) {
+    console.error('获取PDF文件错误:', error);
+    res.status(500).json({ error: '服务器内部错误' });
+  }
+});
+
+module.exports = router;
+

server.js

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+const express = require('express');
+const cors = require('cors');
+const path = require('path');
+const authRoutes = require('./routes/auth');
+const aircraftRoutes = require('./routes/aircraft');
+const pdfRoutes = require('./routes/pdf');
+const { authenticateToken } = require('./middleware/auth');
+
+const app = express();
+const PORT = process.env.PORT || 3001;
+
+// 中间件
+app.use(cors());
+app.use(express.json());
+app.use(express.urlencoded({ extended: true }));
+
+// 静态文件服务 - 用于提供PDF文件
+app.use('/uploads', express.static(path.join(__dirname, 'uploads')));
+
+// 路由
+app.use('/api/auth', authRoutes);
+app.use('/api/aircraft', authenticateToken, aircraftRoutes);
+app.use('/api/pdf', authenticateToken, pdfRoutes);
+
+// 健康检查
+app.get('/api/health', (req, res) => {
+  res.json({ status: 'ok', message: 'API服务运行正常' });
+});
+
+app.listen(PORT, () => {
+  console.log(`服务器运行在端口 ${PORT}`);
+});
+