149 lines
4.3 KiB
HTML
149 lines
4.3 KiB
HTML
<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Document</title>
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<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
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<script src="https://unpkg.com/vue-router/dist/vue-router.js"></script>
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</head>
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<body>
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<div id="app">
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<p>
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<!-- 使用 router-link 组件来导航. -->
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<!-- 通过传入 `to` 属性指定链接. -->
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<!-- <router-link> 默认会被渲染成一个 `<a>` 标签 -->
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<router-link to="/home">Go to Foo</router-link>
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<router-link to="/me">Go to Bar</router-link>
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</p>
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<!-- 路由出口 -->
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<!-- 路由匹配到的组件将渲染在这里 -->
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<router-view></router-view>
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</div>
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</body>
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<script>
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// 0. 如果使用模块化机制编程，导入Vue和VueRouter，要调用 Vue.use(VueRouter)
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// 1. 定义 (路由) 组件。
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// 可以从其他文件 import 进来
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const Home = {
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data() {
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return {
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list: [
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{ id: 1, title: 'ssssss1' },
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{ id: 2, title: 'ssssss2' },
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{ id: 3, title: 'ssssss3' },
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]
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}
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},
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methods: {
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GotoMe() {
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this.$router.push("/me")
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// this.$router.push({ name: 'info', params: { id: 1 } })
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}
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},
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template: `
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<div>
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<p @click="GotoMe">点我跳转</p>
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<ul>
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<li v-for="item,index in list" :key="index">
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<router-link :to="{ name: 'info', params: { id: item.id } }">{{ item.title }}</router-link>
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</li>
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</ul>
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</div>
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`
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}
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const Me = {
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template: '<div>bar</div>'
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}
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const info = {
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data() {
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return {
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}
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},
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methods: {
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},
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template: `<div>详情页：{{ this.$route.params.id }}</div>`
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}
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const Login = () => {
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return {
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data() {
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return {
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}
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},
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methods: {
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UserLogin() {
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localStorage.setItem("token", '11111')
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if (this.$route.query.hasOwnProperty("source")) {
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this.$router.push({
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path: this.$route.query.source
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})
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} else {
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this.$router.push("/home")
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}
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}
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},
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template: `<div @click="UserLogin">登录页面</div>`
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}
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}
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// 2. 定义路由
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const routes = [
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{ path: '/home', component: Home, meta: { isLogin: false, title: '首页' } },
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{ path: '/me', component: Me, meta: { isLogin: true, title: '我的' } },
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{ path: '/login', component: Login, meta: { isLogin: false, title: '登录' } },
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{ path: '/info/:id', component: info, name: 'info', meta: { isLogin: false, title: '详情页' } },
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]
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// 3. 创建 router 实例，然后传 `routes` 配置
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// 你还可以传别的配置参数, 不过先这么简单着吧。
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const router = new VueRouter({
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routes // (缩写) 相当于 routes: routes
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});
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router.beforeEach((to, from, next) => {
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document.title = to.meta.title
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console.log("你要去的页面：", to);
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console.log("你离开的页面", from);
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// 判断你要访问的页面是否需要登录
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if (to.meta.isLogin) {
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// 再次判断用户是否已经登录了
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// 如果没有登录，那么去登录页面
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// 如果已经登录，正常访问页面
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// 登录过了
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if (localStorage.getItem("token") !== null) {
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next()
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} else {
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next({
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path: '/login',
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query: {
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source: from.path
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}
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})
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}
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} else {
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next()
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}
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})
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// 4. 创建和挂载根实例。
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// 记得要通过 router 配置参数注入路由，
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// 从而让整个应用都有路由功能
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const app = new Vue({
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router
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}).$mount('#app')
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// 现在，应用已经启动了！
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</script>
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</html> |