vue router学习——动态路由和嵌套路由

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:
http://blog.csdn.net/wild46cat/article/details/76360229

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" target="_blank">Core Docs</a></li>
      <li><a href="https://forum.vuejs.org" target="_blank">Forum</a></li>
      <li><a href="https://gitter.im/vuejs/vue" target="_blank">Gitter Chat</a></li>
      <li><a href="https://twitter.com/vuejs" target="_blank">Twitter</a></li>
      <br>
      <li><a href="http://vuejs-templates.github.io/webpack/" target="_blank">Docs for This Template</a></li>
    </ul>
    <h2>Ecosystem</h2>
    <ul>
      <li><a href="http://router.vuejs.org/" target="_blank">vue-router</a></li>
      <li><a href="http://vuex.vuejs.org/" target="_blank">vuex</a></li>
      <li><a href="http://vue-loader.vuejs.org/" target="_blank">vue-loader</a></li>
      <li><a href="https://github.com/vuejs/awesome-vue" 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:


这个界面,点击最上边的 / 或者/hello 或者/cc的时候,发生变化的是红色路由中的内容。当点击/hello/foo /hello/foo2 /hello/foo3 的时候,发生变化的是下面蓝色路由中的内容。
这样就和我们平时应用十分的相似了。最外层于有变化,或者局部有变化,但是不想全局的发生改变。
同时,这样也符合了模块化,各个模块分别在不同的模块中。
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