需要用到中介軟體的方式,這樣就可以實現了我們想要的方式

publish-center.vue

<template>
  <router-view></router-view>
</template>
<script>
  export default {
 
  }
</script>

<el-menu :default-active="$route.path" class="el-menu-vertical-demo el-menus" @open="handleopen" @close="handleclose" @select="handleselect"
  unique-opened router v-show="!collapsed" >
  <div class="tools" @click.prevent="collapse">
   <i>|||</i>
 
   </div>
 <template v-for="(item,index) in $router.options.routes" v-if="!item.hidden">
<el-submenu :index="index+''" v-if="!item.leaf">
 <template slot="title" ><i :class="item.iconCls"></i>{{item.name}}</template>
 
 <el-menu-item-group v-for="(child,indexs) in item.children" :index="child.path" :key="child.path" v-if="!child.hidden">
      <!-- <el-menu class="xz" v-if="!child.path" :default-active="child.path"> -->
      <el-submenu :index="child.path" v-if="child.z &&!item.leaf">
       <template slot="title" class="child_title"><i :class="child.iconCls"></i>{{child.name}}</template>
       <el-menu-item v-for="(sun,i) in child.children" :index="sun.path" :key="sun.path" >
       {{sun.name}}
       </el-menu-item>
      </el-submenu>
      <!-- </el-menu> -->
      <el-menu-item :index="child.path" v-if="!child.z" :key="child.path"> {{child.name}} </el-menu-item>
  </el-menu-item-group>
  
     <!-- <el-menu-item v-if="child.path">{{child.name}}</el-menu-item> -->
 
 <!-- </el-menu-item-group> -->
   <!-- <el-menu-item v-for="sun in child.children" :index="sun.path" :key="sun.path" v-if="!sun.hidden"> {{sun.name}}</el-menu-item> -->
 
 
</el-submenu>
 <el-menu-item v-if="item.leaf&&item.children.length>0" :index="item.children[0].path"><i :class="item.iconCls"></i>{{item.children[0].name}}</el-menu-item>
 </template>
</el-menu>

路由部分：

{
   path:'/recordQuery',component:Home,name:'選單1',iconCls:'el-icon-search',children:
   [
     { 
     path: 'carRecord',z:'1',component: () => import('@/page/publish-center.vue'),name: '選單2',children:[{ path: '/carRecord/passRecord',component: passRecord,name: '選單' },]
     },]
},

補充知識：

標題記錄一次vue使用addRouter動態生成三級選單欄的問題

1.addRouter()裡面需要一個固定格式的陣列：例如

import { asyncRoutes,constantRoutes } from '@/router'
/* Layout */
import Layout from '@/layout'
/**
 * Use meta.role to determine if the current user has permission
 * @param roles
 * @param route
 */
function hasPermission(roles,route) {
 if (route.meta && route.meta.roles) {
  return roles.some(role => route.meta.roles.includes(role))
 } else {
  return true
 }
}

/**
 * Filter asynchronous routing tables by recursion
 * @param routes asyncRoutes
 * @param roles
 */
export function filterAsyncRoutes(routes,roles,parentModules) {
 const res = []

 parentModules.forEach(parentModule => {
  var tmp = {}
  tmp.path = parentModule.parentTargetUrl
  
  tmp.component = Layout
  tmp.name = parentModule.parentTargetUrl.substr(1)
  tmp.meta = {}
  tmp.meta.title = parentModule.parentModuleName
  tmp.meta.icon = 'dashboard'
  tmp.meta.roles = roles
  tmp.children = []
  
  parentModule.modules.forEach(module => {
   
   // XXXListPage
   var childrenTmpListPage = {}
   var childrenTmpEditPage = {}
   //childrenTmpListPage.path = '/' + module.targetName + 'ListPage'
   childrenTmpListPage.name = module.targetName + 'ListPage'
   childrenTmpListPage.meta = {}
   childrenTmpListPage.meta.title = module.moduleName
   childrenTmpListPage.meta.icon = 'dashboard'
   childrenTmpListPage.meta.roles = roles
   //childrenTmpListPage.component = resolve => require(['@/page/' + module.targetName.charAt(0).toUpperCase() + module.targetName.slice(1) + '/list_page'],resolve)
   childrenTmpListPage.path = '/' + module.targetName + 'ListPage'
   
   if(module.childrenModules != null && module.childrenModules != undefined && module.childrenModules != ""){
    childrenTmpListPage.component = Layout

   }else{
    
    childrenTmpListPage.component = resolve => require(['@/page/' + module.targetName.charAt(0).toUpperCase() + module.targetName.slice(1) + '/list_page'],resolve)
   }

   childrenTmpListPage.children = []
   // XXXEditPage
   // childrenTmpEditPage.path = '/' + module.targetName + 'EditPage'
   // childrenTmpEditPage.name = module.targetName + 'EditPage'
   // childrenTmpEditPage.meta = {}
   // childrenTmpEditPage.meta.title = module.moduleName
   // childrenTmpEditPage.meta.icon = 'dashboard'
   // childrenTmpEditPage.meta.roles = roles
   // childrenTmpEditPage.hidden = true
   // childrenTmpEditPage.component = resolve => require(['@/page/' + module.targetName.charAt(0).toUpperCase() + module.targetName.slice(1) + '/edit_page'],resolve)
    
   // 三級選單生成
   var roleChildren = roles
   
   if(module.childrenModules != null && module.childrenModules != undefined && module.childrenModules != ""){
    module.childrenModules.forEach(module =>{
 
     var children2TmpListPage = {}
     var children2TmpEditPage = {}
     // childrenTmpListPage.path
     children2TmpListPage.path = module.targetName + 'ListPage'
     alert(children2TmpListPage.path)
     children2TmpListPage.name = module.targetName + 'ListPage'
     children2TmpListPage.meta = {}
     children2TmpListPage.meta.title = module.moduleName
     children2TmpListPage.meta.icon = 'dashboard'
     children2TmpListPage.meta.roles = roleChildren
     
     children2TmpListPage.component = resolve => require(['@/page/' + module.targetName.charAt(0).toUpperCase() + module.targetName.slice(1) + '/list_page'],resolve)
     console.log('@/page/' + module.targetName.charAt(0).toUpperCase() + module.targetName.slice(1) + '/list_page')
     childrenTmpListPage.children.push(children2TmpListPage)
     
   })
  }
   
   tmp.children.push(childrenTmpListPage)
   // tmp.children.push(childrenTmpEditPage)
  })
  res.push(tmp)
  
 })

 console.log(res)
 return res
}

const state = {
 routes: [],addRoutes: []
}

const mutations = {
 SET_ROUTES: (state,routes) => {
  state.addRoutes = routes
  state.routes = constantRoutes.concat(routes)
 }
}

const actions = {
 generateRoutes({ commit },obj) {
  return new Promise(resolve => {
   let accessedRoutes = filterAsyncRoutes(asyncRoutes,obj.roles,obj.parentModules)
   commit('SET_ROUTES',accessedRoutes)
   resolve(accessedRoutes)
  })
 }
}

export default {
 namespaced: true,state,mutations,actions
}

三級路由重點：

componment: 二級路由不能設定為NULL，必須存在，我設定的就是Layout(引用自@/layout)

path:路徑最前面不能使用"/"

以上這篇vue+element使用動態載入路由方式實現三級選單頁面顯示的操作就是小編分享給大家的全部內容了，希望能給大家一個參考，也希望大家多多支援我們。