vue 挂载路由到头部导航的方法

<template>
 <div id="app">
  <!-- element-ui 容器布局 -->
  <el-container>
   <!-- 头部 -->
   <el-header>
    <!-- 头部组件渲染 -->
    <header-ly></header-ly>
   </el-header>

   <!-- 中间主要区域容器 -->
   <el-container>
    <!-- 添加一个element-ui内置的过渡动画 -->
    <transition name="el-zoom-in-center">
     <!-- 通过路由渲染不同内容的页面 -->
     <router-view/>
    </transition>
   </el-container>

   <!-- 底部 -->
   <el-footer>
    <!-- 底部组件渲染 -->
    <footer-ly></footer-ly>
   </el-footer>

  </el-container>
 </div>
</template>

<script>
// 导入组件
import HeaderLy from '@/components/header'
import FooterLy from '@/components/footer'
export default {
 name: 'app',
 components: {
  HeaderLy,
  FooterLy
 }
}
</script>

<style>
#app {
 font-family: 'Avenir', Helvetica, Arial, sans-serif;
 -webkit-font-smoothing: antialiased;
 -moz-osx-font-smoothing: grayscale;
 text-align: center;
 color: #2c3e50;
}
</style>

<template>
 <el-row>
  <!-- 左边logo -->
  <el-col :span="4" class="logo">
   <img src="../assets/logo.png" alt="">
  </el-col>
  <!-- 中间导航区域 -->
  <el-col :span="16">
   <el-menu
    :default-active="activeIndex2"
    class="menu"
    router
    mode="horizontal"
    @select="handleSelect"
    background-color="#545c64"
    text-color="#fff"
    active-text-color="#ffd04b">
    <el-menu-item index="1">处理中心</el-menu-item>
    <el-submenu index="2">
     <template slot="title">我的工作台</template>
     <el-menu-item index="2-1">选项1</el-menu-item>
     <el-menu-item index="2-2">选项2</el-menu-item>
     <el-menu-item index="2-3">选项3</el-menu-item>
    </el-submenu>
    <el-menu-item index="3"><a href="https://www.ele.me" rel="external nofollow" target="_blank">订单管理</a></el-menu-item>
   </el-menu>
  </el-col>
  <!-- 右边用户信息以及登陆注册 -->
  <el-button-group>
   <el-button type="danger" size="small" round >login</el-button>
   <el-button type="success" size="small" round >regin</el-button>
  </el-button-group>
 </el-row>
</template>
<script>
export default {
 // ...
}
</script>
<style scoped>

</style>

<template>
 <el-row>
  <!-- 左边logo -->
  <el-col :span="4" class="logo">
   <img src="../assets/logo.png" alt="">
  </el-col>
  <!-- 中间导航区域 -->
  <el-col :span="16">
   <el-menu
    :default-active="$route.path" 
    class="menu"
    router
    mode="horizontal"
    @select="handleSelect"
    background-color="#545c64"
    text-color="#fff"
    active-text-color="#ffd04b">
    <!-- 循环写的路由，其中路由中有 hidden：true 的就不加入循环 -->
    <template 
     v-for="route in $router.options.routes" 
     v-if="!route.hidden">

     <!-- 循环没有children的路由 -->
     <el-menu-item
      v-if="!route.hasChild" 
      :key="route.path" 
      :index="route.path" >
      {{ route.name }}
     </el-menu-item>

     <!-- 循环有children的路由 -->
     <el-submenu v-else :index="route.path">
      <template slot="title">{{ route.name }}</template>
      <el-menu-item 
       v-for="child in route.children" 
       :index="child.path"
       :key="child.path">
       {{ child.name }}
      </el-menu-item>
     </el-submenu>

    </template>
   </el-menu>
  </el-col>
  <!-- 右边用户信息以及登陆注册 -->
  <el-button-group>
   <el-button type="danger" size="small" round >login</el-button>
   <el-button type="success" size="small" round >regin</el-button>
  </el-button-group>
  
 </el-row>
</template>
<script>
export default {
 // ...
 methods: {
  handleSelect () {
   console.log('菜单选择之后的回调操作')
  }
 }
}
</script>
<style scoped>

</style>