从跳转登陆再返回到原地址 

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
</head>
<body>
  <!-- 
    login?ReturnUrl=https://vip.jd.com/home.html
    login?ReturnUrl=https://order.jd.com/center/list.action
  -->
  <div id="app">
    <router-view></router-view>
  </div>
  <script src="../vue.js"></script>
  <script src="../vue-router.js"></script>
  <script>
    
    const Index = {
      template: `
        <div>
          <h3>首页</h3>
          <router-link to="/login">登录</router-link>          
          <router-link to="/order">我的订单</router-link>
          <router-link to="/user">个人中心</router-link>
          <router-link to="/vip">会员中心</router-link>
        </div>
      `
    }

    const Order = {
      template: `
        <div>我的订单</div>
      `
    }

    const User = {
      template: `
        <div>个人中心</div>
      `
    }

    const Vip = {
      template: `
        <div>会员中心</div>
      `
    }

    const Login = {
      template: `
        <div>登录
          <button @click="login">登录</button>
          </div>
      `,
      methods: {
        login () {
          localStorage.setItem('ticket', 1)
          // 要根据当前url中的query参数 returnURL进行路由的跳转
          const url = this.$route.query.returnURL
          // console.log(url)
          // 利用js实现页面的跳转操作
          this.$router.push(url)
        }
      }
    }
    const routes = [
      {
        path: '/',
        component: Index
      }, {
        path: '/order',
        component: Order,
        meta: {
          auth: true
        }
      }, {
        path: '/user',
        component: User,
        meta: {
          auth: true
        }
      }, {
        path: '/vip',
        component: Vip,
        meta: {
          auth: true
        }
      }, {
        path: '/login',
        component: Login
      }
    ]

    const router = new VueRouter({
      routes
    })

    // 设置导航守卫
    router.beforeEach((to, from, next) => {
      // 判断路由对象中的matched是否有一个对象包含meta
      if (to.matched.some(route => route.meta.auth)) {
        if (localStorage.getItem('ticket')) {
          next()
        }else {
          next('/login?returnURL=' + to.path) // 跳转时需要在url后添加一个query参数，参数值为要返回的url路径
        }
      } else {
        next()
      }
    })

    const app = new Vue({
      el: '#app',
      router
    })
  
  </script>
</body>
</html>

 

posted @ 2018-12-24 20:02  宝2333  阅读(375)  评论(0)    收藏  举报