循环传入的数据去生成下级菜单

<template>
 <div class="headBar">
 <div class="title">
 微商理后台
 </div>
 <el-menu
 class="el-menu-headBar"
 mode="horizontal"
 @select="handleSelect"
 background-color="#000000"
 text-color="#fff"
 active-text-color="#ffd04b"
 :unique-opened="true"
 :default-active="onRoutes" router>
 <template v-for="item in items" >
 <template v-if="item.subs" >
 <el-submenu :index="item.index">
 <template slot="title" >
 {{item.title}}
 </template>
 <el-menu-item v-for="(subItem,i) in item.subs" :key="i" :index="subItem.index">
 {{ subItem.title }}
 </el-menu-item>
 </el-submenu>
 </template>
 <template v-else>
 <el-menu-item :index="item.index">
 <label>{{ item.title }}</label>
 </el-menu-item>
 </template>
 </template>
 </el-menu>
 </div>
</template>
 
<script>
 export default {
 data() {
 return {
 activeIndex: "1",
 items: [
 {
 icon: 'el-icon-menu',
 index: '1',
 title: '数据统计',
 subs: [
 {
 index: '/monitor',
 title: '客流展示'
 },
 {
 index: '/monitor/device',
 title: '设备采集'
 },
 {
 index: '/monitor/tv',
 title: '监控视频'
 }
 ]
 },{
 icon: 'el-icon-goods',
 index: '/product',
 title: '商品管理',
 },{
 icon: 'el-icon-goods',
 index: '/category',
 title: '类目管理',
 },{
 icon: 'fa fa-cart-arrow-down',
 index: '/order',
 title: '订单一览'
 },{
 icon: 'fa fa-user-o',
 index: '/merchant',
 title: '商家信息'
 },{
 icon: 'el-icon-printer',
 index: '9',
 title: '微商城',
 subs:[
 {
 icon: 'el-icon-printer',
 index: '/banner',
 title: 'banner设置'
 },{
 icon: 'el-icon-printer',
 index: '/decoration',
 title: '首页装修'
 },{
 icon: 'el-icon-printer',
 index: '/message',
 title: '消息设置'
 }
 ]
 },{
 icon: 'el-icon-printer',
 index: '10',
 title: '线下店',
 subs:[
 {
 icon: 'el-icon-printer',
 index: '/device',
 title: '设备管理'
 },{
 icon: 'el-icon-printer',
 index: '/advertise',
 title: '广告管理'
 },{
 icon: 'el-icon-printer',
 index: '/version',
 title: '版本管理'
 }
 ]
 },{
 icon: 'el-icon-printer',
 index: '/largeUI',
 title: '大屏'
 },{
 icon: 'el-icon-printer',
 index: '/coupon',
 title: '优惠券'
 }
 ],
 }
 },
 methods: {
 handleSelect(key, keyPath) {
 console.log(key, keyPath);
 }
 },
 computed:{
 onRoutes(){
 return this.$route.path.replace('/','');
 }
 }
 }
</script>
 
<style scoped>
 .el-menu-headBar {
 width: 80%;
 min-width: 950px;
 font-size: 12px;
 border-bottom: 1px #000000;
 }
 
 .headBar {
 width: 100%;
 height: 50px;
 display: flex;
 background-color: #000000;
 }
 
 .title {
 background-color: #ffdb15;
 color: #000;
 height: 100%;
 min-width: 200px;
 width: 200px;
 display: flex;
 justify-content: center;
 align-items: center;
 letter-spacing: 5px;
 font-size: 17px;
 }
</style>

以上这篇vue侧边栏动态生成下级菜单的方法就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持脚本之家。