var appData = require('../address.json'); // 引入address.json文件
var apiRoutes = express.Router();
apiRoutes.get('/address',function (req,res) {
 res.json({
  errno:0,
  data:appData
 });
});
app.use('/api',apiRoutes);  // 訪問地址為： /api/address

const express = require('express')
const app = express()
var appData = require('../address.json')
var apiRoutes = express.Router()
app.use('/api', apiRoutes)

// 在devServer對象里添加如下代碼：
before(app) {
   app.get('/api/address', (req, res) => {
    res.json({
     errno: 0,
     data: appData
    })
   })
}

npm install --save axios vue-axios

import axios from 'axios'
Vue.prototype.$http = axios

this.$http.get('/api/address').then(response => {
   console.log(response)
}, response => {
   console.log('數(shù)據(jù)加載失敗')
})