众店模式与城市X选模式：消费循环分红省钱：无痛消费

bash复制代码mkdir ecommerce-platform  cd ecommerce-platform  npm init -y  npm install express mongoose body-parser cors

javascript复制代码// server.js  const express = require('express');  const mongoose = require('mongoose');  const bodyParser = require('body-parser');  const cors = require('cors');    const app = express();  app.use(bodyParser.json());  app.use(cors());    mongoose.connect('mongodb://localhost:27017/ecommerce', { useNewUrlParser: true, useUnifiedTopology: true });    const db = mongoose.connection;  db.on('error', console.error.bind(console, 'connection error:'));  db.once('open', function() {    console.log('Connected to MongoDB');  });    // 路由  app.use('/api/mystore', require('./routes/mystore'));  app.use('/api/citycool', require('./routes/citycool'));    const PORT = process.env.PORT || 5000;  app.listen(PORT, () => {    console.log(`Server is running on port ${PORT}`);  });

javascript复制代码// models/User.js  const mongoose = require('mongoose');    const UserSchema = new mongoose.Schema({    name: String,    email: String,    password: String, // 注意：实际项目中应使用加密存储密码    integral: { type: Number, default: 0 },    // 其他字段...  });    module.exports = mongoose.model('User', UserSchema);

javascript复制代码// routes/mystore.js  const express = require('express');  const router = express.Router();  const Order = require('../models/Order');  const User = require('../models/User');    // 创建订单  router.post('/orders', async (req, res) => {    const { userId, productId, amount, merchantId, discountRate } = req.body;      // 计算积分和消费券    const integral = amount * (discountRate / 100);      // 更新用户积分    await User.findByIdAndUpdate(userId, { $inc: { integral: integral } }, { new: true });      // 创建订单记录    const newOrder = new Order({      userId,      productId,      amount,      merchantId,      discountRate,      integral,      // 其他字段...    });      await newOrder.save();    res.status(201).send(newOrder);  });    // 其他路由...    module.exports = router;

bash复制代码npx create-react-app ecommerce-frontend  cd ecommerce-frontend  npm install axios

javascript复制代码// src/components/Login.js  import React, { useState } from 'react';  import axios from 'axios';    const Login = () => {    const [email, setEmail] = useState('');    const [password, setPassword] = useState('');      const handleSubmit = async (e) => {      e.preventDefault();      try {        const response = await axios.post('http://localhost:5000/api/auth/login', { email, password });        // 处理登录成功后的逻辑，如保存token、跳转页面等      } catch (error) {        console.error('Login error:', error);      }    };      return (      <form onSubmit={handleSubmit}>        <input type="email" placeholder="Email" value={email} onChange={(e) => setEmail(e.target.value)} />        <input type="password" placeholder="Password" value={password} onChange={(e) => setPassword(e.target.value)} />        <button type="submit">Login</button>      </form>    );  };    export default Login;