vue 权限认证token的实现方法

import Vue from 'vue'import Router from 'vue-router'Vue.use(Router)const router = new Router({...})router.beforeEach((to, from, next) => { if(/^//[S|B|V]/.test(to.path)){  if (isLogin()) {//判断token信息的自写方法   next();  }  else {   next({ name: 'login' })//跳转到登录页  } } else {  next(); }})

import axios from 'axios'// http request 拦截器axios.interceptors.request.use(function (config) {  config.headers.token = sessionStorage.getItem("user_token")//将接口返回的token信息配置到接口请求中  return config;}, function (error) {  return Promise.reject(error);});// http response 拦截器axios.interceptors.response.use(function(response){  if(response.data.code=='1001'||response.data.code=='1002'){//具体的判断token失效的参数    sessionStorage.setItem("user_token",'')    sessionStorage.setItem("LoginUser",'{}')    alert(response.data.msg);    window.location.href='/#/login'//需求方要求一旦出错立即跳转登录，所以采取这种侵入式的手段。  }else{    return response  }}, function (error) {  return Promise.reject(error);});