4 路由守卫 cookie

import Vue from 'vue'
import VueRouter from 'vue-router'
import Home from '../views/Home.vue'
import Login from '../views/Login.vue'
import VueCookie from 'vue-cookie';
Vue.use(VueRouter)
Vue.use(VueCookie);
const routes = [
  {
    path:"/",
    redirect:"/login"
  },
  {
    path: '/home',
    name: 'Home',
    component: Home
  },
  {
    path: '/about',
    name: 'About',
    component: () => import(/* webpackChunkName: "about" */ '../views/About.vue')
  },{
    path:"/login",
    name:"login",
    component:Login,
    meta:{
      isNav:true
    }
  }
]
const router = new VueRouter({
  mode: 'history',
  base: process.env.BASE_URL,
  routes
})
var vm = new Vue();
router.beforeEach(async (to,from,next)=>{
  var auth =vm.$cookie.get("auth");
  if(to.path=="/login"){
    if(auth){
      router.push("/home")
    }else{
      next()
    }
  }else{
    if(auth){
      next();
    }else{
      router.push("/login")
    }
  }
})
export default router