refresh_token实现无痛刷新

import axios from 'axios'
import qs from "qs";
import Vue from 'vue'
import router from './router'
import store from '@/store'
import { config } from 'shelljs';
const baseURL = process.env.BASE_API
const http = axios.create({
  baseURL,
})
let gloableConfig = null;
http.interceptors.request.use(function (config) {
  gloableConfig = config;
  let _this = this
  if (sessionStorage.token) {
    config.headers.authorization = sessionStorage.token
  }
  config.headers['Content-Type'] = "application/json"
  const token = sessionStorage.getItem('token')
  sessionStorage.setItem('isRouterAlive', true)
  if (token) {
    let refreshToken = sessionStorage.getItem('refreshToken')
    refreshToken = store.commit('refreshToken')
  }
  return config
}, function (error) {
  return Promise.reject(error);
});

// 刷新token 重新加载当前页面请求
function getRefreshTokenAndReload(lastResponse, reload) {
  let param = {
    accessToken: sessionStorage.getItem('token'),
    refreshToken: sessionStorage.getItem('refreshToken')
  }
  //刷新token 接口
  http.post('/user/refreshToken', param).then(res => {
    if (res.data.code == '0') {
      sessionStorage.setItem("token", res.data.data.accessToken);
      sessionStorage.setItem("refreshToken", res.data.data.refreshToken);
      reload(lastResponse)
    }else{
      this.$router.push('/main/login')
    }
  })
}

// 设置全局捕获错误  拦截器
http.interceptors.response.use((res, data, msg) => {
  if (res.data.code == 401002) {
    if (router.currentRoute.name !== 'login') {
      let reload = undefined
      const ret = new Promise((resolve) => {
        reload = (response) => {
          response.config.url = response.config.url.replace(response.config.baseURL, '');
          // 用重新封装的config去请求, 就会将重新请求后的返回
          resolve(http(response.config));
        }
      })

      getRefreshTokenAndReload(res, reload)
      return ret;
     
    }
  }
  return res
}, err => {
  return Promise.reject(err)
})
export default http