Vue组件模板形式如何实现对象数组数据循环为树形结构

这篇文章主要介绍Vue组件模板形式如何实现对象数组数据循环为树形结构，文中介绍的非常详细，具有一定的参考价值，感兴趣的小伙伴们一定要看完！

数据结构为数组中包含对象--树形结构，用Vue组件的写法实现以下的效果：

树形列表，缩进显示层级，第5级数据加底色，数据样式显色，点击展开折叠数据。本文为用Vue实现方式，另有一篇为用knockout.js的实现方法。

html代码

 <div id="table-component-div">
   <table-component v-for="item in data1" v-bind:list="item"></table-component>
 </div>

组件模板代码

<script type="text/x-template" id="table-component-template">
  <div class="tem">
    <div class="tem-p">
      <div v-on:click="toggleClick"><i v-bind:>{{list.number}}</i><span>{{list.name}}</span></div>
      <!--绑定数据-->
      <div><span>{{list.energyone}}</span></div>
      <div><span>{{list.energytwo}}</span></div>
      <div><span>{{list.energythree}}</span></div>
      <!--绑定class，使数值显示出区分-->
      <div><span v-bind:class="{'isgreen':list.huanRatio<0,'isred':list.huanRatio>100}">{{list.huanRatio}}<em>%</em></span></div>
      <div><span v-bind:class="{'isgreen':list.tongRatio<0,'isred':list.tongRatio>100}">{{list.tongRatio}}<em>%</em></span></div>
    </div>
    <div class="tem-c">
      <!-- 子组件 -->
      <table-component v-for="itemc in list.child" :list="itemc"></table-component>
    </div>
  </div>
</script>

JavaScript代码

/* 数据结构 */
    var ko_vue_data=[
      {
        name: "总能耗",
        number:"0",
        energyone: 14410,
        energytwo: 1230,
        energythree: 1230,
        huanRatio: -36.8,
        tongRatio: 148.5,
        child: [
          {
            name: "租户电耗",
            number:"1",
            energyone: 14410,
            energytwo: 1230,
            energythree: 1230,
            huanRatio: -36.8,
            tongRatio: 148.5,
            child: []
          },
          {
            name: "公共用电",
            number:"2",
            energyone: 14410,
            energytwo: 1230,
            energythree: 1230,
            huanRatio: -36.8,
            tongRatio: 148.5,
            child: [
              {
                name: "暖通空调",
                number:"2.1",
                energyone: 14410,
                energytwo: 1230,
                energythree: 1230,
                huanRatio: -36.8,
                tongRatio: 148.5,
                child: [
                  {
                    name: "冷站",
                    number:"2.1.1",
                    energyone: 14410,
                    energytwo: 1230,
                    energythree: 1230,
                    huanRatio: -36.8,
                    tongRatio: 148.5,
                    child: [
                      {
                        name: "冷水机组",
                        number:"2.1.1.1",
                        energyone: 14410,
                        energytwo: 1230,
                        energythree: 1230,
                        huanRatio: -36.8,
                        tongRatio: 148.5,
                        child: []
                      }
                    ]
                  },
                  {
                    name: "热力站",
                    number: "2.1.2",
                    energyone: 14410,
                    energytwo: 1230,
                    energythree: 1230,
                    huanRatio: -36.8,
                    tongRatio: 148.5,
                    child: []
                  }
                ]
              }
            ]
          }
        ]
      }
    ];
    /* 注册组件 */
    Vue.component('table-component', {
      template:"#table-component-template",//模板
      props:['list'],//传递数据
      computed:{//计算属性
        isFolder: function () {//判断数据有没有子集，此效果中暂没用到，有需要的可以看下具体使用方式
          return this.list.child && this.list.child.length > 0;
        }
      },
      methods:{
        /* 展开折叠操作 */
        toggleClick:function(event){
          event.stopPropagation();//阻止冒泡
          var _this = $(event.currentTarget);//点击的对象
          if (_this.parent().next().is(":visible")) {
            _this.parent().next().slideUp();
          } else {
            _this.parent().next().slideDown();
          }
        }
      }
    });
    /* 创建实例 */
    new Vue({
      el:"#table-component-div",//挂载dom
      data:{
        data1:ko_vue_data//数据
      }
    })

数据显示完毕，接下来是样式效果，缩进显示层级及底色显示。

css代码

.tem-p{
      clear: both;
      border-bottom: 1px solid #dddddd;
      height: 30px;
      line-height: 30px;
      -webkit-box-sizing: border-box;
      -moz-box-sizing: border-box;
      box-sizing: border-box;
    }
    .tem-p>div{
      float: left;
      width:100px;
      box-sizing: border-box;
      -ms-text-overflow: ellipsis;
      text-overflow: ellipsis;
      white-space:nowrap;
      overflow: hidden;
      text-align: center;
      -webkit-box-sizing: border-box;
      -moz-box-sizing: border-box;
      box-sizing: border-box;
      height: 100%;
      border-right: 1px solid #dddddd;
    }
    .tem-p>div:first-of-type{
      width: 298px;
      text-align: left;
    }
    .tem>.tem-c .tem-p>div:first-of-type{
      padding-left: 30px;
    }
    .tem>.tem-c .tem-c .tem-p>div:first-of-type{
      padding-left: 60px;
    }
    .tem>.tem-c .tem-c .tem-c .tem-p>div:first-of-type{
      padding-left: 90px;
    }
    .tem>.tem-c .tem-c .tem-c .tem-c .tem-p>div:first-of-type{
      padding-left: 120px;
    }
    .tem>.tem-c .tem-c .tem-c .tem-c .tem-p{
      background-color: #f8f8f8;
    }
    .tem>.tem-c .tem-c .tem-c .tem-c .tem-c .tem-p>div:first-of-type{
      padding-left: 150px;
    }
    .lastChild{
      background: #f8f8f8;
    }
    .isred{
      color: red;
    }
    .isgreen{
      color: green;
    }

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