update webs docs

nicetechcg/server/index.js

@@ -0,0 +1,37 @@
+const express = require('express');
+const jwt = require('jsonwebtoken');
+const { expressjwt: jwtMiddleware } = require('express-jwt'); // 导入 express-jwt 中间件
+const app = express();
+const secret = 'nicetechsg';
+
+// 中间件：保护所有 /api 路由
+app.use(
+  '/api',
+  jwtMiddleware({ secret, algorithms: ['HS512'] })
+);
+
+app.get("/test", (req, res) =>{
+  res.json({message: "test"})
+})
+
+// 登录接口（生成 token）
+app.post('/login', (req, res) => {
+  const user = { password: 1, username: 'alice' };
+  const token = jwt.sign(user, secret, { expiresIn: '1h' });
+  res.json({ token });
+});
+
+// 受保护接口
+app.get('/api/protected', (req, res) => {
+  res.json({ message: 'You have access!', user: req.auth });
+});
+
+// 错误处理
+app.use((err, req, res, next) => {
+  if (err.name === 'UnauthorizedError') {
+    return res.status(401).json({ message: 'Invalid token' });
+  }
+  next(err);
+});
+
+app.listen(3000, () => console.log('Server started on port 3000'));