Vue.js recursive component implements tree menu

This article mainly introduces the use of recursive components of Vue.js to implement a basic tree menu. It has a very good reference value, let’s take a look at it together

I recently looked at the recursive component of Vue.js and implemented a basic tree menu.

Project structure:

main.js As the entrance, it is very simple:

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

it A component main.vue is introduced:

<template>
 <p class="tree-menu">
 <ul v-for="menuItem in theModel">
 <my-tree :model="menuItem"></my-tree>
 </ul>
 </p>
</template>
<script>
var myData = [
 {
 &#39;id&#39;: &#39;1&#39;,
 &#39;menuName&#39;: &#39;基础管理&#39;,
 &#39;menuCode&#39;: &#39;10&#39;,
 &#39;children&#39;: [
 {
 &#39;menuName&#39;: &#39;用户管理&#39;,
 &#39;menuCode&#39;: &#39;11&#39;
 },
 {
 &#39;menuName&#39;: &#39;角色管理&#39;,
 &#39;menuCode&#39;: &#39;12&#39;,
 &#39;children&#39;: [
 {
 &#39;menuName&#39;: &#39;管理员&#39;,
 &#39;menuCode&#39;: &#39;121&#39;
 },
 {
 &#39;menuName&#39;: &#39;CEO&#39;,
 &#39;menuCode&#39;: &#39;122&#39;
 },
 {
 &#39;menuName&#39;: &#39;CFO&#39;,
 &#39;menuCode&#39;: &#39;123&#39;
 },
 {
 &#39;menuName&#39;: &#39;COO&#39;,
 &#39;menuCode&#39;: &#39;124&#39;
 },
 {
 &#39;menuName&#39;: &#39;普通人&#39;,
 &#39;menuCode&#39;: &#39;124&#39;
 }
 ]
 },
 {
 &#39;menuName&#39;: &#39;权限管理&#39;,
 &#39;menuCode&#39;: &#39;13&#39;
 }
 ]
 },
 {
 &#39;id&#39;: &#39;2&#39;,
 &#39;menuName&#39;: &#39;商品管理&#39;,
 &#39;menuCode&#39;: &#39;&#39;
 },
 {
 &#39;id&#39;: &#39;3&#39;,
 &#39;menuName&#39;: &#39;订单管理&#39;,
 &#39;menuCode&#39;: &#39;30&#39;,
 &#39;children&#39;: [
 {
 &#39;menuName&#39;: &#39;订单列表&#39;,
 &#39;menuCode&#39;: &#39;31&#39;
 },
 {
 &#39;menuName&#39;: &#39;退货列表&#39;,
 &#39;menuCode&#39;: &#39;32&#39;,
 &#39;children&#39;: []
 }
 ]
 },
 {
 &#39;id&#39;: &#39;4&#39;,
 &#39;menuName&#39;: &#39;商家管理&#39;,
 &#39;menuCode&#39;: &#39;&#39;,
 &#39;children&#39;: []
 }
];
import myTree from &#39;./common/treeMenu.vue&#39;
export default {
 components: {
 myTree
 },
 data() {
 return {
 theModel: myData
 }
 }
}
</script>

This file introduces a tree component treeMenu.vue:

<template>
 <li>
 <span @click="toggle">
 <i v-if="isFolder" class="icon" :class="[open ? &#39;folder-open&#39;: &#39;folder&#39;]"></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: &#39;treeMenu&#39;,
 props: [&#39;model&#39;],
 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>

It’s that simple. There’s really nothing to write about in this article, let’s just keep it as a record.

The screenshot effect is as follows:

The above is the entire content of this article. I hope it will be helpful to everyone's study. For more related content, please pay attention to the PHP Chinese website !

Related recommendations:

Analysis on the separation and combination of vue-admin and backend (flask)

Based on the Vue framework Introduction to the pull-up refresh function of the vux component library

The above is the detailed content of Vue.js recursive component implements tree menu. For more information, please follow other related articles on the PHP Chinese website!