Vue嵌套路由：

实现效果(路由三层嵌套，点击一级tab显示二级tab效果，二级tab点击切换对应内容,不在tab区域里的内容，切换时不重复渲染)：

Demo访问时路径：http://IP:端口/#/routers/

1.建立案例文件夹 page/routers/

1 routers/index.vue

<template>
 <p>
 <router-link :to="{name: 'rindex_rhome'}" class="rlink" :class="{active:selected == 1}" @click.native="tabck(1)">首页</router-link>
 <router-link :to="{name: 'rindex_rnews'}" class="rlink" class="{active:selected == 2}" @click.native="tabck(2)">新闻</router-link>
 <router-link :to="{name: 'rindex_ryl'}" class="rlink" class="{active:selected == 3}" @click.native="tabck(3)">娱乐</router-link>
 
 <!-- 二级子路由页面 -->
 <router-view />
 </p>
</template>
<script>
export default {
 data(){
 return {
 selected: 1
 }
 },
 methods: {
 tabck(index){
 this.selected = index; //设置tab选中项
 }
 }
}
</script>
<style>
 .rlink {
 padding: 5px;
 margin: 5px;
 margin-bottom: 10px;
 display: inline-block;
 text-decoration: none;
 color: blue;
 }
 .rlink.active {
 color: red;
 text-decoration: underline;
 }
</style>

1-1-1 routers/home/index.vue

<template>
 <p>
 HOME页面信息：<br/>
 <router-link :to="{name: 'rindex_rhome_Rhomezx'}" class="rlink" :class="{active:selected == 1}" @click.native="tabck(1)">最新HOME</router-link>
 <router-link :to="{name: 'rindex_rhome_Rhomegj'}" class="rlink" :class="{active:selected == 2}" @click.native="tabck(2)">国际HOME</router-link>
 <router-link :to="{name: 'rindex_rhome_Rhomegn'}" class="rlink" :class="{active:selected == 3}" @click.native="tabck(3)">国内HOME</router-link>
 
 <!-- 子路由(三层) -->
 <router-view />
 </p>
</template>
<script>
 export default {
 data(){
 return {
 selected: 1
 }
 },
 methods: {
 tabck(index) {
 this.selected = index; //设置选中tab
 }
 }
 }
</script>
<style>
</style>

1-1-2 routers/home/tab/gj.vue、gn.vue、zx.vue

gj.vue：

<template>
 <p>
 国际HOME信息：<br/>
 <ul >
 <li v-for="(result, index) in list" :key="index">{{result.name}}{{index}}</li>
 </ul>
 </p>
</template>
<script>
 export default {
 data(){
 return {
 list: [
 {name:'国际HOME'},
 {name:'国际HOME'},
 {name:'国际HOME'}
 ]
 }
 }
 }
</script>

gn.vue :

<template>
 <p>
 国内HOME信息：<br/>
 <ul >
 <li v-for="(result, index) in list" :key="index">{{result.name}}{{index}}</li>
 </ul>
 </p>
</template>
<script>
 export default {
 data(){
 return {
 list: [
 {name:'国内HOME'},
 {name:'国内HOME'}
 ]
 }
 }
 }
</script>

zx.vue：

<template>
 <p>
 最新HOME信息：<br/>
 <ul >
 <li v-for="(result, index) in list" :key="index">{{result.name}}{{index}}</li>
 </ul>
 </p>
</template>
<script>
 export default {
 data(){
 return {
 list: [
 {name:'最新HOME'}
 ]
 }
 }
 }
</script>

1-2 routers/news/index.vue

<template>
 <p>
 新闻页面信息：<br/>
 <router-link class="rlink" :class="{active:selected == 1}" @cllick.native="tabck(1)">最新新闻</router-link>
 <router-link class="rlink" :class="{active:selected == 2}" @cllick.native="tabck(2)">国际新闻</router-link>
 <router-link class="rlink" :class="{active:selected == 3}" @cllick.native="tabck(3)">国内新闻</router-link>
 <!-- 子路由 -->
 <router-view/>
 </p>
</template>
<script>
 export default {
 data () {
 return {
 selected: 1
 }
 },
 methods: {
 tabck(index){
 this.selected = index; //切换tab，设置选中项
 }
 } 
 }
</script>

1-2-1 routers/news/tab/gj.vue、gn.vue、zx.vue

gj.vue：

<template>
 <p>
 国际新闻信息：<br/>
 <ul >
 <li v-for="(result, index) in list" :key="index">{{result.name}}{{index}}</li>
 </ul>
 </p>
</template>
<script>
 export default {
 data(){
 return {
 list: [
 {name:'国际新闻信息'},
 {name:'国际新闻信息'},
 {name:'国际新闻信息'},
 {name:'国际新闻信息'},
 {name:'国际新闻信息'}
 ]
 }
 }
 }
</script>

gn.vue：

<template>
 <p>
 国内新闻信息：<br/>
 <ul >
 <li v-for="(result, index) in list" :key="index">{{result.name}}{{index}}</li>
 </ul>
 </p>
</template>
<script>
 export default {
 data(){
 return {
 list: [
 {name:'国内新闻信息'},
 {name:'国内新闻信息'}
 ]
 }
 }
 }
</script>

zx.vue：

<template>
 <p>
 最新新闻信息：<br/>
 <ul >
 <li v-for="(result, index) in list" :key="index">{{result.name}}{{index}}</li>
 </ul>
 </p>
</template>
<script>
 export default {
 data(){
 return {
 list: [
 {name:'最新新闻信息'},
 {name:'最新新闻信息'}
 ]
 }
 }
 }
</script>

1-3-1 routers/yl/index.vue

<template>
 <p>
 娱乐页面信息：<br/>
 <router-link class="rlink" :class="{active:selected == 1}" @click.native="tabck(1)">最新娱乐</router-link>
 <router-link class="rlink" :class="{active:selected == 2}" @click.native="tabck(2)">明星娱乐</router-link>
 <router-link class="rlink" :class="{active:selected == 3}" @click.native="tabck(3)">焦点娱乐</router-link>
 
 <!-- 子路由-->
 <router-view/>
 </p>
 <script>
 export default {
 data(){
 return {
 selected: 1
 }
 },
 methods: {
 tabck(index){
 this.selected = index; //设置tab选中项
 }
 }
 }
 </script>
</template>

1-3-2 routers/yl/tab/jd.vue、mx.vue、zx.vue

jd.vue：

<template>
 <p>
 焦点娱乐信息：<br/>
 <ul >
 <li v-for="(result, index) in list" :key="index">{{result.name}}{{index}}</li>
 </ul>
 </p>
</template>
<script>
 export default {
 data(){
 return {
 list: [
 {name:'焦点娱乐信息'},
 {name:'焦点娱乐信息'}
 ]
 }
 }
 }
</script>

mx.vue：

<template>
 <p>
 明星娱乐信息：<br/>
 <ul >
 <li v-for="(result, index) in list" :key="index">{{result.name}}{{index}}</li>
 </ul>
 </p>
</template>
<script>
 export default {
 data(){
 return {
 list: [
 {name:'明星娱乐信息'},
 {name:'明星娱乐信息'}
 ]
 }
 }
 }
</script>

zx.vue：

<template>
 <p>
 最新娱乐信息：<br/>
 <ul >
 <li v-for="(result, index) in list" :key="index">{{result.name}}{{index}}</li>
 </ul>
 </p>
</template>
<script>
 export default {
 data(){
 return {
 list: [
 {name:'最新娱乐信息'},
 {name:'最新娱乐信息'}
 ]
 }
 }
 }
</script>

2.路由配置规则(router/index.js)

....
 省略导入路由、使用路由代码...
....
// 嵌套路由的使用：第一层
import Rindex from '../page/routers/index'
// 嵌套路由的使用：第二层
import Rhome from '../page/routers/home/index'
// 嵌套路由的使用：第三层
import Rhomezx from '../page/routers/home/tab/zx'
import Rhomegj from '../page/routers/home/tab/gj'
import Rhomegn from '../page/routers/home/tab/gn'
import Rnews from '../page/routers/news/index'
import Rnewszx from '../page/routers/news/tab/zx'
import Rnewsgj from '../page/routers/news/tab/gj'
import Rnewsgn from '../page/routers/news/tab/gn'
import Ryl from '../page/routers/yl/index'
import Rylzx from '../page/routers/yl/tab/zx'
import Rylmx from '../page/routers/yl/tab/mx'
import Ryljd from '../page/routers/yl/tab/jd'
// 路由规则配置：
export default new Router({
 routes : [
 {
 name: 'rindex',
 path: '/routers',
 component: Rindex,
 redirect: {name: 'rindex_rhome'}, // 跳转到下一级第一个
 children: [
 {
 name: 'rindex_rhome',
 path: 'rindex_rhome', //如果这里不使用 "/rhome" 则表示是归属于上级路由（上级luyou/子path），如果使用 "/rhome" 则表示根路径下访问
 component: Rhome,
 redirect: {name: 'rindex_rhome_Rhomezx'}, //跳转到下级第一层
 children: [
 {
 name: 'rindex_rhome_Rhomezx',
 path: 'rindex_rhome_Rhomezx',
 component: Rhomezx
 },
 {
 name: 'rindex_rhome_Rhomegj',
 path: 'rindex_rhome_Rhomegj',
 component: Rhomegj
 },
 {
 name: 'rindex_rhome_Rhomegn',
 path: 'rindex_rhome_Rhomegn',
 component: Rhomegn
 }
 ]
 },
 {
 name: 'rindex_rnews',
 path: 'rindex_rnews',
 component: Rnews,
 redirect: {name: 'rindex_rnews_Rnewszx'},
 children: [
 {
 name: 'rindex_rnews_Rnewszx',
 path: 'rindex_rnews_Rnewszx',
 component: Rnewszx
 },
 {
 name: 'rindex_rnews_Rnewsgj',
 path: 'rindex_rnews_Rnewsgj',
 component: Rnewsgj
 },
 {
 name: 'rindex_rnews_Rnewsgn',
 path: 'rindex_rnews_Rnewsgn',
 component: Rnewsgn
 }
 ]
 },
 {
 name: 'rindex_ryl',
 path: 'rindex_ryl',
 component: Ryl,
 redirect: {name: 'rindex_ryl_rylzx'},
 chidren:[
 {
 name: 'rindex_ryl_rylzx',
 path: 'rindex_ryl_rylzx',
 component: Rylzx
 },
 {
 name: 'rindex_ryl_rylmx',
 path: 'rindex_ryl_rylmx',
 component: Rylmx
 },
 {
 name: 'rindex_ryl_ryljd',
 path: 'rindex_ryl_ryljd',
 component: Ryljd
 }
 ]
 }
 ]
 }
 ]
});

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