52 lines
1.5 KiB
JavaScript
52 lines
1.5 KiB
JavaScript
const express = require('express');
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const axios = require('axios');
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const app = express();
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app.use(express.json());
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const APP_ID = 'wx364b8ebf17fe45fe';
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const APP_SECRET = '9b7476020991a2c71f1416da7f011d31'; // ⚠️ 安全存储在后端
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// 前端发送 code 到这里
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app.post('/api/wechat-login', async (req, res) => {
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const { code } = req.body;
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if (!code) return res.status(400).json({ error: 'code is required' });
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try {
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// 1️⃣ 换取 access_token
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const tokenResp = await axios.get('https://api.weixin.qq.com/sns/oauth2/access_token', {
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params: {
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appid: APP_ID,
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secret: APP_SECRET,
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code,
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grant_type: 'authorization_code'
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}
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});
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const tokenData = tokenResp.data;
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const accessToken = tokenData.access_token;
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const openid = tokenData.openid;
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if (!accessToken || !openid) {
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return res.status(400).json({ error: 'Failed to get access_token or openid', data: tokenData });
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}
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// 2️⃣ 获取用户信息
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const userResp = await axios.get('https://api.weixin.qq.com/sns/userinfo', {
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params: { access_token: accessToken, openid }
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});
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const userInfo = userResp.data;
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// 3️⃣ 可生成网站登录态（JWT 或 session），这里演示直接返回
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res.json({ userInfo });
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} catch (err) {
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console.error(err);
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res.status(500).json({ error: 'WeChat login failed' });
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}
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});
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app.listen(3001, () => {
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console.log('Server running on http://localhost:3001');
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});
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