Vue请求拦截 响应拦截

import Vue from 'vue'
import axios from 'axios'
import router from 'vue-router'
export const $axios = axios.create({ // 这里是配置项
  timeout: 7000,
})

// 拦截请求
$axios.interceptors.request.use(
  config => {
    console.log(config);
    let t = Vue.prototype.getCookie('token');
    if (t) {
      config.headers.t = t
    } else {
      // router.replace({path: '/'})
    }
    return config
  },
  err => {
    return Promise.reject(err)
  }
)

// 拦截响应
$axios.interceptors.response.use(
  response => {
    console.log(response)
    return response
  },
  err => {
    console.log(err);
    if (err.response) {
      switch (err.response.status) {
        case 401:
          // 这里写清除token的代码
          router.replace({
            path: 'login',
            query: {redirect: router.currentRoute.fullPath} // 登录成功后跳入浏览的当前页面
          })
      }
    }
    return Promise.reject(err)
  }
)

 

在main.js中引入

import Vue from 'vue'
import ElementUI from 'element-ui'
import 'element-ui/lib/theme-chalk/index.css'
// import axios from 'axios'
import {$axios} from './assets/lib/axios'//放在后面打包会出错，应放在本处
import VueHighcharts from 'vue-highcharts'
import $ from 'jquery'
import store from './store'
import Vuex from 'vuex';
import App from './App'
import router from './router'
Vue.config.productionTip = false;
Vue.use(ElementUI);
Vue.use(VueHighcharts);
Vue.use(Vuex);
Vue.prototype.$http = $axios等等