1.安装axios
npm install axios -S
2.配置axios
在项目中新建api/index.js文件，用以配置axios
api/index.js
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‘ ? params : null, params: method === ‘GET‘ || method === ‘DELETE‘ ? params : null, }).then(function (res) { response(res); }).catch(function (err) { response(err); }) } export default { get: function (url, params, response) { return apiAxios(‘GET‘, url, params, response) }, post: function (url, params, response) { return apiAxios(‘POST‘, url, params, response) }, put: function (url, params, response) { return apiAxios(‘PUT‘, url, params, response) }, delete: function (url, params, response) { return apiAxios(‘DELETE‘, url, params, response) } }
这里的配置了POST、GET、PUT、DELETE方法。并且自动将JSON格式数据转为URL拼接的方式
同时配置了跨域，不需要的话将withCredentials设置为false即可
并且设置了默认头部地址为：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 } });