node跨域转发 express+http-proxy-middleware的使用

npm init

npm install express connect-timeout http-proxy-middleware --save-dev

<!--proxy-server.js-->
const express = require('express');
const timeout = require('connect-timeout');
const proxy = require('http-proxy-middleware');
const app = express();

// 超时时间
const TIME_OUT = 30  1e3;

// 设置端口
app.set('port', '80');

// 设置超时 返回超时响应
app.use(timeout(TIME_OUT));
app.use((req, res, next) => {
 if (!req.timedout) next();
});


proxyOption = {
 target: 'http://localhost:8080',
 pathRewrite: {
    '^/api/' : '/' // 重写请求，api/解析为/
  },
  changeOrigoin:true
};

// 静态资源路径
app.use('/', express.static('src/page'));

// 反向代理
app.use('/api/', proxy(proxyOption));

// 监听端口
app.listen(app.get('port'), () => {
 console.log(`server running @${app.get('port')}`);
});