vue项目中遇到的登录超时

项目中使用cookie作为用户是否登录的唯一标识，在auth.js中分别对cookie的存储、获取、删除作了封装。

 我将登录超时功能写在了request.js中，在全局封装的axios请求返回中加入判断是否登录超时的操作，若登录超时，需要清除token，重新加载当前页面，再通过路由守卫拦截，从而跳转到登录页；否则无法继续获取数据。

request.js代码如下：

import axios from 'axios' 
import { Dialog, Toast } from 'vant'
import { removeToken } from "@/utils/auth";

// create an axios instance
const service = axios.create({
  baseURL: '/api', // url = base url + request url
  // withCredentials: true, // send cookies when cross-domain requests
  timeout: 5000 // request timeout
})

// request interceptor
// service.interceptors.request.use(
//   config => {
//     // do something before request is sent

//     if (store.getters.token) {
//       // let each request carry token
//       // ['X-Token'] is a custom headers key
//       // please modify it according to the actual situation
//       config.headers['X-Token'] = getToken()
//     }
//     return config
//   },
//   error => {
//     // do something with request error
//     console.log(error) // for debug
//     return Promise.reject(error)
//   }
// )

// response interceptor
service.interceptors.response.use(
  /**
   * If you want to get http information such as headers or status
   * Please return  response => response
   */

  /**
   * Determine the request status by custom code
   * Here is just an example
   * You can also judge the status by HTTP Status Code
   */
  response => {
    const res = response.data

    // if the custom code is not 20000, it is judged as an error.
    if (res.code !== 200) {
      console.log(res.message)
      Toast.fail(res.message)

      // 登录超时
      if (res.code === 401) {
        // to re-login
        Dialog.confirm({
          message: '您已登录超时，请重新登录',
          theme: 'round-button',            //圆形按钮
          showCancelButton:false,          //是否展示取消功能
          confirmButtonColor: '#19B0AE'    //确认按钮颜色
        }).then(() => {
          // 清除cookie，并刷新当前页面
          // 刷新后，由于路由拦截，所以跳转到登录页
          removeToken()
          location.reload()
        })
      }
      return res 
    } else {
      return res
    }
  },
  error => {
    console.log('err' + error) // for debug
    Toast.fail(error.message) 
    return Promise.reject(error)
  }
)

export default service