最新的vue没有dev-server.js文件，如何进行后台数据模拟？

参照：https://blog.csdn.net/qq_34645412/article/details/78833860

最新的vue里dev-server.js被替换成了webpack-dev-conf.js

在模拟后台数据的时候直接在webpack-dev-conf.js文件中修改

第一步，在const portfinder = require(‘portfinder’)后添加

//第一步
const express = require('express')
const app = express()//请求server var appData = require('../data.json')//加载本地数据文件 var seller = appData.seller//获取对应的本地数据 var goods = appData.goods var ratings = appData.ratings var apiRoutes = express.Router() app.use('/api', apiRoutes)//通过路由请求数据

第二步：找到devServer,在里面加上before（）方法

devServer: {
    clientLogLevel: 'warning',  historyApiFallback: true,  hot: true,  compress: true,  host: HOST || config.dev.host,  port: PORT || config.dev.port,  open: config.dev.autoOpenBrowser,  overlay: config.dev.errorOverlay  ? { warnings: false, errors: true } : false,  publicPath: config.dev.assetsPublicPath,  proxy: config.dev.proxyTable,  quiet: true, // necessary for FriendlyErrorsPlugin  watchOptions: { poll: config.dev.poll,  },  //第二步找到devServer,在里面添加 before(app) { app.get('/api/seller', (req, res) => { res.json({ errno: 0,  data: seller })//接口返回json数据，上面配置的数据seller就赋值给data请求后调用  }),  app.get('/api/goods', (req, res) => { res.json({ errno: 0,  data: goods }) }),  app.get('/api/ratings', (req, res) => { res.json({ errno: 0,  data: ratings }) }) } }

 

提供一个json.data数据

{
  "seller": {
    "name": "粥品香坊（回龙观）",  "description": "蜂鸟专送",  "deliveryTime": 38,  "score": 4.2,  "serviceScore": 4.1,  "foodScore": 4.3,  "rankRate": 69.2,  "minPrice": 20,  "deliveryPrice": 4,  "ratingCount": 24,  "sellCount": 90,  "bulletin": "粥品香坊其烹饪粥料的秘方源于中国千年古法，在融和现代制作工艺，由世界烹饪大师屈浩先生领衔研发。坚守纯天然、0添加的良心品质深得消费者青睐，发展至今成为粥类的引领品牌。是2008年奥运会和2013年园博会指定餐饮服务商。",  "supports": [ { "type": 0,  "description": "在线支付满28减5"  },  { "type": 1,  "description": "VC无限橙果汁全场8折"  },  { "type": 2,  "description": "单人精彩套餐"  },  { "type": 3,  "description": "该商家支持发票,请下单写好发票抬头"  },  { "type": 4,  "description": "已加入“外卖保”计划,食品安全保障"  } ],  "avatar": "http://static.galileo.xiaojukeji.com/static/tms/seller_avatar_256px.jpg",  "pics": [ "http://fuss10.elemecdn.com/8/71/c5cf5715740998d5040dda6e66abfjpeg.jpeg?imageView2/1/w/180/h/180",  "http://fuss10.elemecdn.com/b/6c/75bd250e5ba69868f3b1178afbda3jpeg.jpeg?imageView2/1/w/180/h/180",  "http://fuss10.elemecdn.com/f/96/3d608c5811bc2d902fc9ab9a5baa7jpeg.jpeg?imageView2/1/w/180/h/180",  "http://fuss10.elemecdn.com/6/ad/779f8620ff49f701cd4c58f6448b6jpeg.jpeg?imageView2/1/w/180/h/180"  ],  "infos": [ "该商家支持发票,请下单写好发票抬头",  "品类:其他菜系,包子粥店",  "北京市昌平区回龙观西大街龙观置业大厦底商B座102单元1340",  "营业时间:10:00-20:30"  ] }}