73 lines
2.6 KiB
JavaScript
73 lines
2.6 KiB
JavaScript
const express = require('express');
|
|
const { createProxyMiddleware } = require('http-proxy-middleware');
|
|
const path = require('path');
|
|
|
|
const app = express();
|
|
const PORT = 8081;
|
|
|
|
// CORS 中间件
|
|
app.use((req, res, next) => {
|
|
res.header('Access-Control-Allow-Origin', '*');
|
|
res.header('Access-Control-Allow-Methods', 'GET, POST, PUT, DELETE, OPTIONS');
|
|
res.header('Access-Control-Allow-Headers', 'Content-Type, Authorization');
|
|
if (req.method === 'OPTIONS') {
|
|
return res.sendStatus(200);
|
|
}
|
|
next();
|
|
});
|
|
|
|
// 专用代理：牛只行情数据 (ad.yunmainiu.com)
|
|
// 必须放在通用的 /api 代理之前
|
|
app.use('/api/cattle-market-data', createProxyMiddleware({
|
|
target: 'https://ad.yunmainiu.com',
|
|
changeOrigin: true,
|
|
secure: false,
|
|
pathRewrite: {
|
|
'^/': '/api/cattle-data',
|
|
},
|
|
onProxyReq: (proxyReq, req, res) => {
|
|
console.log(`[牛只行情代理] ${req.method} ${req.url} -> https://ad.yunmainiu.com/api/cattle-data`);
|
|
// 伪装请求头，防止被反爬或校验
|
|
proxyReq.setHeader('Host', 'ad.yunmainiu.com');
|
|
proxyReq.setHeader('Referer', 'https://ad.yunmainiu.com/');
|
|
proxyReq.setHeader('User-Agent', 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36');
|
|
},
|
|
onProxyRes: (proxyRes, req, res) => {
|
|
console.log(`[牛只行情代理响应] 状态码: ${proxyRes.statusCode}`);
|
|
// 允许跨域：覆盖目标服务器的 CORS 设置
|
|
delete proxyRes.headers['access-control-allow-origin'];
|
|
proxyRes.headers['Access-Control-Allow-Origin'] = '*';
|
|
}
|
|
}));
|
|
|
|
// API 代理：必须在静态文件服务之前，将 /api 请求代理到 cattletrack.aiotagro.com
|
|
app.use('/api', createProxyMiddleware({
|
|
target: 'https://cattletrack.aiotagro.com',
|
|
changeOrigin: true,
|
|
secure: false,
|
|
pathRewrite: {
|
|
'^/api': '/api', // 保持 /api 前缀
|
|
},
|
|
onProxyReq: (proxyReq, req, res) => {
|
|
console.log(`[代理] ${req.method} ${req.url} -> https://cattletrack.aiotagro.com${req.url}`);
|
|
// 确保请求方法正确转发
|
|
proxyReq.method = req.method;
|
|
},
|
|
onProxyRes: (proxyRes, req, res) => {
|
|
console.log(`[代理响应] ${req.method} ${req.url} - 状态码: ${proxyRes.statusCode}`);
|
|
},
|
|
onError: (err, req, res) => {
|
|
console.error('[代理错误]', err);
|
|
res.status(500).json({ error: '代理请求失败', details: err.message });
|
|
}
|
|
}));
|
|
|
|
// 静态文件服务：提供 datav 目录下的文件
|
|
app.use(express.static(__dirname));
|
|
|
|
app.listen(PORT, () => {
|
|
console.log(`服务器已启动: http://127.0.0.1:${PORT}`);
|
|
console.log(`请访问: http://127.0.0.1:${PORT}/index.html`);
|
|
});
|
|
|