axios 请求封装（VUE）

import qs from 'qs';
import axios from 'axios';
import { Message } from 'iview';
import uitls from './util';

let baseUrl = 'http://192.168.0.1:8888/'; //设置你的baseUrl

const CancelToken = axios.CancelToken;
const source = CancelToken.source();
//设置token
function setToken() {
  if (utils.local.get('token')) {
    axios.defaults.headers.common['token'] = utils.getLocal('token');
  }
}

//请求验证拦截器
axios.interceptors.request.use(config => {
store.commit('UPDATE_LOADING', true); //显示loading,这里没有用vuex可以省去
//判断请求不是登陆接口的时候,字段是不是过期了,(根据业务逻辑做对应的处理)
if (config.url.indexOf('login') < 0) {
let lessTime = Number(uitls.local.get('expireTime')) - Date.now(); //后台返回的过期时间与现在的进行计算
if (lessTime <= 0) {
Message.error({
content: '登陆过期',
duration: 5
});
source.token('token过期了');
store.commit('UPDATE_LOADING', false); //隐藏loading
window.location.href = '/login';
utils.local.clear();
}
}
return config;
});

//返回数据拦截器
axios.interceptors.response.use(res => {
if (res.config.url.indexOf('login') >= 0) {
const { token, expireTime, code, data } = res.data;
if (code == '200') {
//登陆后做出一些本地的处理，按需加载,()
//...................
utils.local.set('expireTime', expireTime); //过期时间
utils.local.set('token', token);
}
}
return res;
});

//封装请求方法
function formatReq(type, url, data) {
setToken();
return new Promise((reslove, reject) => {
axios({
method: type,
url: ${baseUrl}${url},
headers: {
//这里的请求头与后台商量设置
'content-Type': 'application/x-www-form-urlencoded'
},
cancelToken: source.token,
data: qs.stringify(data) //java后台用qs转
// data:JSON.stringify(data)//PHP后台用JSON转
})
.then(r => {
store.commit('UPDATE_LOADING', false); //隐藏loading
//这里可以添加指定对应状态码的处理方式,比如登陆过期,res.data.code === '6666' 路由跳转到login
reslove(r);
})
.catch(e => {
store.commit('UPDATE_LOADING', false); //隐藏loading
reject(e.message);
Message.error(e.message);
});
});
}

const Http = {
get: (url, query) => {
url = utils.formatUrl(url, query);
setToken();
return axios.get(${baseUrl}${url}, { cancelToken: source.token }).then(r => r);
},
post: (url, data) => formatReq('post', url, data),
put: (url, data) => formatReq('put', url, data),
patch: (url, data) => formatReq('patch', url, data),
delete: (url, data) => formatReq('delete', url, data)
};

export default Http;