vue router学习之动态路由和嵌套路由详解

2019-11-19 15:20:30

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本文主要参考：https://router.vuejs.org/zh-cn/essentials/nested-routes.html

本文的阅读前提是已经能够搭建一个vue前台程序并且运行。如果还么有搭建可以参考文章：
//www.VeVB.COm/article/111650.htm

好，下面上货。

首先介绍一下动态路由。
动态路由按照我的理解，就是说能够进行页面的跳转，比如说：下面的这个页面中：

<template>  <div id="app">   <header>    <router-link to="/">/</router-link>    <router-link to="/hello">/hello</router-link>    <router-link to="/cc">/cc</router-link>   </header>   <router-view style="border: 1px solid red"></router-view>  </div> </template>

如果点击了/hello，那么在router-view中就会加载对应的模块，也就是在路由中设置的模块。

import Vue from 'vue' import Router from 'vue-router' import Hello from '@/components/Hello' import Foo from '@/components/Foo' import Foo2 from '@/components/Foo2' import Foo3 from '@/components/Foo3'  Vue.use(Router)  export default new Router({  routes: [   {path: '/', redirect: '/hello'},   {    path: '/hello',    component: Hello,    children: [     {path: '/hello/foo', component: Foo},     {path: '/hello/foo2', component: Foo2},     {path: '/hello/foo3', component: Foo3}    ]   },   {    path: '/cc',    name: 'Foo',    component: Foo   }  ] })

也就是说，会跳转到Hello和Foo这两个组件。

那么嵌套路由是什么意思呢，最开始我以为的是这样：/hello/foo 和/hello/foo2这两个路由可以简写成嵌套路由，其实不是的。嵌套路由只的是，在子组件中再次嵌套组件。然后在使用路由进行跳转，这样跳转的时候，变化的就只有子组件，而外边的父组件没有变化。

下面我把完整的例子放出来，看一下：

App.vue

<template>  <div id="app">   <header>    <router-link to="/">/</router-link>    <router-link to="/hello">/hello</router-link>    <router-link to="/cc">/cc</router-link>   </header>   <router-view style="border: 1px solid red"></router-view>  </div> </template>  <script> export default {  name: 'app' } </script>  <style> #app {  font-family: 'Avenir', Helvetica, Arial, sans-serif;  -webkit-font-smoothing: antialiased;  -moz-osx-font-smoothing: grayscale;  text-align: center;  color: #2c3e50;  margin-top: 60px; } </style>

Foo.vue

<template>  <div>   <h1>3434234343</h1>  </div> </template>  <script>  export default {   name: 'Foo',   data () {    return {    }   }  } </script>  <!-- Add "scoped" attribute to limit CSS to this component only --> <style scoped>  h1, h2 {   font-weight: normal;  }   ul {   list-style-type: none;   padding: 0;  }   li {   display: inline-block;   margin: 0 10px;  }   a {   color: #42b983;  } </style>

Foo2.vue

<template>  <div>   <h1>this is Foo2</h1>  </div> </template>  <script>  export default {   name: 'Foo2',   data () {    return {    }   }  } </script>  <!-- Add "scoped" attribute to limit CSS to this component only --> <style scoped>  h1, h2 {   font-weight: normal;  }   ul {   list-style-type: none;   padding: 0;  }   li {   display: inline-block;   margin: 0 10px;  }   a {   color: #42b983;  } </style>

Foo3.vue

<template>  <div>   <h1>this is foo3</h1>  </div> </template>  <script>  export default {   name: 'Foo3',   data () {    return {    }   }  } </script>  <!-- Add "scoped" attribute to limit CSS to this component only --> <style scoped>  h1, h2 {   font-weight: normal;  }   ul {   list-style-type: none;   padding: 0;  }   li {   display: inline-block;   margin: 0 10px;  }   a {   color: #42b983;  } </style>

Hello.vue

<template>  <div class="hello">   <h1>{{ msg }}</h1>   <h2>Essential Links</h2>   <ul>    <li><a href="https://vuejs.org" rel="external nofollow" target="_blank">Core Docs</a></li>    <li><a href="https://forum.vuejs.org" rel="external nofollow" target="_blank">Forum</a></li>    <li><a href="https://gitter.im/vuejs/vue" rel="external nofollow" target="_blank">Gitter Chat</a></li>    <li><a href="https://twitter.com/vuejs" rel="external nofollow" target="_blank">Twitter</a></li>    <br>    <li><a href="http://vuejs-templates.github.io/webpack/" rel="external nofollow" target="_blank">Docs for This Template</a></li>   </ul>   <h2>Ecosystem</h2>   <ul>    <li><a href="http://router.vuejs.org/" rel="external nofollow" target="_blank">vue-router</a></li>    <li><a href="http://vuex.vuejs.org/" rel="external nofollow" target="_blank">vuex</a></li>    <li><a href="http://vue-loader.vuejs.org/" rel="external nofollow" target="_blank">vue-loader</a></li>    <li><a href="https://github.com/vuejs/awesome-vue" rel="external nofollow" target="_blank">awesome-vue</a></li>   </ul>   <div>    <router-link to="/hello/foo">/hello/foo</router-link>    <router-link to="/hello/foo2">/hello/foo2</router-link>    <router-link to="/hello/foo3">/hello/foo3</router-link>   </div>   <router-view style="border: solid 1px blue"></router-view>  </div> </template> <script>  export default {   name: 'hello',   data () {    return {     msg: 'Welcome to Your Vue.js App'    }   }  } </script>  <!-- Add "scoped" attribute to limit CSS to this component only --> <style scoped>  h1, h2 {   font-weight: normal;  }   ul {   list-style-type: none;   padding: 0;  }   li {   display: inline-block;   margin: 0 10px;  }   a {   color: #42b983;  } </style>

路由：

import Vue from 'vue' import Router from 'vue-router' import Hello from '@/components/Hello' import Foo from '@/components/Foo' import Foo2 from '@/components/Foo2' import Foo3 from '@/components/Foo3'  Vue.use(Router)  export default new Router({  routes: [   {path: '/', redirect: '/hello'},   {    path: '/hello',    component: Hello,    children: [     {path: '/hello/foo', component: Foo},     {path: '/hello/foo2', component: Foo2},     {path: '/hello/foo3', component: Foo3}    ]   },   {    path: '/cc',    name: 'Foo',    component: Foo   }  ] })

需要注意的是仔细的看App.vue和Hello.vue中，都包含<router-view></router-view>，但是他们的作用不同，App.vue是顶层路由，指的是组外层的路由，Hello.vue中的是嵌套路由，负责显示子组件。
我把页面截图一下：