Vue.js 递归组件实现树形菜单示例

import Vue from 'vue'
Vue.config.debug = true
import main from './components/main.vue'
new Vue({
 el: '#app',
 render: h => h(main)
})

<template>
 <div class="tree-menu">
 <ul v-for="menuItem in theModel">
 <my-tree :model="menuItem"></my-tree>
 </ul>
 </div>
</template>
<script>
var myData = [
 {
 'id': '1',
 'menuName': '基础管理',
 'menuCode': '10',
 'children': [
 {
 'menuName': '用户管理',
 'menuCode': '11'
 },
 {
 'menuName': '角色管理',
 'menuCode': '12',
 'children': [
 {
 'menuName': '管理员',
 'menuCode': '121'
 },
 {
 'menuName': 'CEO',
 'menuCode': '122'
 },
 {
 'menuName': 'CFO',
 'menuCode': '123'
 },
 {
 'menuName': 'COO',
 'menuCode': '124'
 },
 {
 'menuName': '普通人',
 'menuCode': '124'
 }
 ]
 },
 {
 'menuName': '权限管理',
 'menuCode': '13'
 }
 ]
 },
 {
 'id': '2',
 'menuName': '商品管理',
 'menuCode': ''
 },
 {
 'id': '3',
 'menuName': '订单管理',
 'menuCode': '30',
 'children': [
 {
 'menuName': '订单列表',
 'menuCode': '31'
 },
 {
 'menuName': '退货列表',
 'menuCode': '32',
 'children': []
 }
 ]
 },
 {
 'id': '4',
 'menuName': '商家管理',
 'menuCode': '',
 'children': []
 }
];
import myTree from './common/treeMenu.vue'
export default {
 components: {
 myTree
 },
 data() {
 return {
 theModel: myData
 }
 }
}
</script>

<template>
 <li>
 <span @click="toggle">
 <i v-if="isFolder" class="icon" :class="[open ? 'folder-open': 'folder']"></i>
 <i v-if="!isFolder" class="icon file-text"></i>
 {{ model.menuName }}
 </span>
 <ul v-show="open" v-if="isFolder">
 <tree-menu v-for="item in model.children" :model="item"></tree-menu>
 </ul>
 </li>
</template>
 <script>
export default {
 name: 'treeMenu',
 props: ['model'],
 data() {
 return {
 open: false,
 isFolder: true
 }
 },
 computed: {
 isFolder: function() {
 return this.model.children && this.model.children.length
 }
 },
 methods: {
 toggle: function() {
 if (this.isFolder) {
 this.open = !this.open
 }
 }
 }
}
</script>
 <style>
ul {
 list-style: none;
}
i.icon {
 display: inline-block;
 width: 15px;
 height: 15px;
 background-repeat: no-repeat;
 vertical-align: middle;
}
.icon.folder {
 background-image: url(/src/assets/folder.png);
}
.icon.folder-open {
 background-image: url(/src/assets/folder-open.png);
}
.icon.file-text {
 background-image: url(/src/assets/file-text.png);
}
.tree-menu li {
 line-height: 1.5;
}
</style>