解决新版本webpack vue-cli生成文件没有dev.server.js问题

新版本webpack生成的dev.server.js 在webpack.dev.conf.js中
 
webpack.dev.conf.js

const axios = require('axios')
const express = require('express')
const app = express()
const apiRoutes = express.Router()
app.use('/api', apiRoutes)

而后找到devserver 这里能够配置路由
  devServer: {
    before (app) {
      app.get('/api/getDiscList', function (req, res) {
        res.json
      })
    },