import axios from 'axios';
let http = axios.create({
 baseURL: 'http://localhost:8080/',
 withCredentials: true,
 headers: {
  'Content-Type': 'application/x-www-form-urlencoded;charset=utf-8'
 },
 transformRequest: [function (data) {
  let newData = '';
  for (let k in data) {
   if (data.hasOwnProperty(k) === true) {
    newData += encodeURIComponent(k) + '=' + encodeURIComponent(data[k]) + '&';
   }
  }
  return newData;
 }]
});
function apiAxios(method, url, params, response) {
 http({
  method: method,
  url: url,
  data: method === 'POST' || method === 'PUT' "http://localhost:8080/">http://localhost:8080/，这样调用的时候只需写访问方法即可

3.使用axios
注：PUT请求默认会发送两次请求，第一次预检请求不含参数，所以后端不能对PUT请求地址做参数限制
首先在main.js中引入方法


import Api from './api/index.js';
Vue.prototype.$api = Api;


然后在需要的地方调用即可


this.$api.post('user/login.do(地址)', {
  "参数名": "参数值"
}, response => {
   if (response.status >= 200 && response.status < 300) {
    console.log(response.data);\\请求成功，response为成功信息参数
   } else {
    console.log(response.message);\\请求失败，response为失败信息
   }
});