yb课堂 实战之路由拦截和订单模块 《四十二》

前置守护 路由拦截功能开发

文档：https://router.vuejs.org/zh/guide/advanced/navigation-guards.html

router里面配置需要登陆的路由

meta: { requiresAuth:true }

import Vue from 'vue'
import VueRouter from 'vue-router'
import Home from '../views/Home/Home.vue'
import CourseDetail from '../views/CourseDetail/CourseDetail.vue'
import Login from '../views/Login/Login.vue'
import Order from '../views/Order/Order.vue'
import Pay from '../views/Pay/Pay.vue'
import Personal from '../views/Personal/Personal.vue'
import Register from '../views/Register/Register.vue'

Vue.use(VueRouter)

const routes = [
  {
    path: "/",
    name: "Home",
    component: Home
  },
  {
    path: "/coursedetail",
    name: "CourseDetail",
    //按需加载
    component: ()=>import("../views/CourseDetail/CourseDetail")
    //component: CourseDetail
  },
  {
    path: "/login",
    name: "Login",
    component: Login
  },
  {
    path: "/order",
    name: "Order",
    component: Order,
    meta: { requiresAuth:true }
  },
  {
    path: "/pay",
    name: "Pay",
    component: Pay,
    meta: { requiresAuth:true }
  },
  {
    path: "/personal",
    name: "Personal",
    component: Personal,
    meta: { requiresAuth:true }
  },
  {
    path: "/register",
    name: "Register",
    component: Register
  }
]

const router = new VueRouter({
  routes
})

export default router

main.js里面配置路由拦截

//拦截拦截，拦截全部路由，每次操作路由都是被拦截进行判断
router.beforeEach((to, from, next) => {
  const token = localStorage.getItem('token');
  //筛选需要传token的路由，匹配route里面需要登陆的路由，如果匹配到就是true
  if (to.matched.some(record => record.meta.requiresAuth)) {
    //根据token是否有，帕努单是否需要调到登陆页面
    if (token) {
      next();
    } else {
      next({ path: '/login' })
    }
  }else
  {
    next();
  }
})