import axios from 'axios';

// req拦截

axios.interceptors.request.use(
 //设置头部的token config.headers['tokens'] = 55555

  let token = localStorage.getItem('token')

    config => {

        if (token === null) {  // 判断是否存在token，如果存在的话，则每个http header都加上token

            config.headers.Authorization = `${token}`;

        }

        return config;

    },

    err => {

        return Promise.reject(err);

    });

// res拦截

axios.interceptors.response.use(

    response => {

        return response;

    },

    error => {

        if (error.response.code === ) {

            // 返回 401 跳转到登录页面

            router.replace({

                path: 'login',

                query: {redirect: router.currentRoute.fullPath}

            })

        }

        return Promise.reject(error.response.msg)   // 返回接口返回的错误信息

    });