使用express来代理服务的方法

const express = require('express')
const app = express()

//如果它在最前面，后面的/开头的都会被拦截
app.get('/', (req, res) => res.send('Hello World!'))

app.use(express.static('public'));//静态资源
app.use('/dist', express.static(path.join(__dirname, 'public')));//静态资源

//404
app.use('/test', function (req, res, next) {
  res.status(404).send("Sorry can't find that!");
});

app.use(function (req, res, next) {
  //TODO 中间件，每个请求都会经过
  next();
});

app.use(function (err, req, res, next) {
  //TODO 失败中间件，请求错误后都会经过
  console.error(err.stack);
  res.status(500).send('Something broke!');
  next();
});

app.listen(4000, () => console.log('Example app listening on port 4000!'))

const request = require('request');
app.use('/base/', function (req, res) {
  let url = 'http://localhost:3000/base' + req.url;
  req.pipe(request(url)).pipe(res);
});

const http_proxy = require('http-proxy-middleware');
const proxy = {
 '/tarsier-dcv/': {
  target: 'http://192.168.1.190:1661'
 },
 '/base/': {
  target: 'http://localhost:8088',
  pathRewrite: {'^/base': '/debug/base'}
 }
};

for (let key in proxy) {
 app.use(key, http_proxy(proxy[key]));
}

"scripts": {
 "server": "nodemon --watch build --watch test src/server.js"
}