ReactJs实现树形结构的数据显示的组件的示例


Posted in Javascript onAugust 18, 2017

本文介绍了ReactJs实现树形结构的数据显示的组件的示例,分享给大家,具体如下:

1、该组件树形显示数据

2、组件中数据的请求方式为fetch方式

3、点击对应的数据前面的小三角,fetch请求改数据下对应的子数据,并展开该节点。

4、将该组件的js、less文件放到kpiTree目录下,在kpiTree目录下创建images目录将组件需要的图片放入给目录,在kpiTree目录下创建json文件夹将该组件需要的json文件放入改文件夹中,组件便可正常运行。

kpiTree.js文件

/** 
 * Created by Administrator on 2017/3/20 0020. 
 */ 
import React,{Component} from "react" 
import "./kpiTree.less"; 
export default class KpiTree extends Component{ 
  constructor(props){ 
    super(props); 
    this.state={ 
    } 
    this._handleSelect=this._handleSelect.bind(this); 
    this._handleSearch=this._handleSearch.bind(this); 
    this._handleReturn=this._handleReturn.bind(this); 
  } 
  _handleSearch=()=>{ 
    debugger 
    var _self=this; 
    var _inputValue=this.refs.ksearchInput.value;//搜索框输入的关键字 
    var _main=this.refs.kpiTree; 
    _main.innerHTML=""; 
    var searchListUrl = '../src/kpiTree/json/searchListData.json'; 
    fetch(searchListUrl,{ 
      credentials:'same-origin', 
      async:false, 
      //method: 'POST', 
      method: 'GET', 
      mode:'cors',//跨域请求 
      headers: { 
        "Content-type": "application/x-www-form-urlencoded", 
        "User-Agent": " Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36" 
      }, 
    }) 
      .then(function(res) { 
        console.log("Response succeeded?", JSON.stringify(res.ok)); 
        return res.json(); 
      }) 
 
      .then(function(data) { 
        debugger 
        _self._renderTreeNode(_main,data,0); 
      }) 
      .catch(function(e) { 
        console.log("fetch fail",e.toString()); 
      }); 
  } 
  _handleReturn=()=>{ 
    this.refs.ksearchInput.value="";//清空搜索输入框 
    var _main=this.refs.kpiTree; 
    _main.innerHTML=""; 
    this._fetchTreeNodeData("",_main,0); 
  } 
  _handleSelect=()=>{ 
    debugger; 
    var _select=[]; 
    $(this.refs.kpiTree).find("input:checkbox").each(function() {//$('#kpiTree input:checkbox') 
      if ($(this)[0].pid!=undefined&&$(this)[0].checked ==true) { 
        var _selected_kpi={}; 
        _selected_kpi.kid=$(this)[0].parentNode.id.substring(4); 
        _selected_kpi.kname=$(this)[0].parentNode.children[1].innerHTML 
        _selected_kpi.pid=$(this)[0].parentNode.pid.substring(4); 
        _select.push(_selected_kpi); 
      } 
    }); 
    this.props.callbackParent(_select); 
  } 
  componentDidMount=()=>{ 
    var _main=this.refs.kpiTree; 
    this._fetchTreeNodeData("",_main,0); 
  } 
  _selectAllCheckBox=(parentNodeId,event)=>{ 
    var _items=$("#" + parentNodeId+" input") 
    for(var i=0;i<_items.length;i++){ 
      if (_items[i].pid!=undefined&&_items[i].pid==parentNodeId){ 
        _items[i].checked=event.currentTarget.checked; 
      } 
    } 
  } 
  _renderTreeNode=(nodeObj,treeData,paddingLeft)=>{ 
    var _self=this; 
    var hasAllSelectBox=false; 
    if(treeData.length>0){ 
      for(var i=0;i<treeData.length;i++){ 
        if(treeData[i].hasChild=="0"){ 
          hasAllSelectBox=true 
        } 
      } 
      var _node=treeData.map((data,index)=>{ 
        var _kname=data.kname; 
        var _div=document.createElement("div"); 
        _div.pid="node"+data.pid; 
        _div.id="node"+data.kid; 
        _div.style.paddingLeft=paddingLeft+"px"; 
        var _img=document.createElement("img"); 
        _img.src="/src/kpiTree/images/hide.png"; 
        _img.className="knode-hide-show-icon"; 
        _img.onclick=_self._handleClick.bind(this,data.kid); 
        var _checkBox=document.createElement("input"); 
        _checkBox.type="checkbox" 
        _checkBox.pid="node"+data.pid; 
        var _span=document.createElement("span"); 
        _span.innerHTML=_kname; 
        var allCheckBoxDiv=null; 
        if(data.pid!="-1"&&index==0&&hasAllSelectBox==true){ 
          allCheckBoxDiv=document.createElement("div"); 
          allCheckBoxDiv.pid="node"+data.pid; 
          allCheckBoxDiv.style.paddingLeft=paddingLeft+"px"; 
          var _allCheckBox=document.createElement("input"); 
          _allCheckBox.type="checkbox"; 
          _allCheckBox.onchange=_self._selectAllCheckBox.bind(this,nodeObj.id); 
          var _allCheckBoxLabel=document.createElement("span"); 
          _allCheckBoxLabel.innerHTML="全选"; 
          allCheckBoxDiv.appendChild(_allCheckBox); 
          allCheckBoxDiv.appendChild(_allCheckBoxLabel); 
        } 
        if(data.hasChild=="1"){ 
          _div.appendChild(_img); 
        } 
        else if(data.hasChild=="0"){ 
          _div.appendChild(_checkBox); 
        } 
        _div.appendChild(_span); 
        if(allCheckBoxDiv){ 
          nodeObj.appendChild(allCheckBoxDiv) 
        } 
        nodeObj.appendChild(_div); 
      }) 
 
    } 
  } 
  _fetchTreeNodeData=(nodeId,nodeObj,paddingLeft)=>{ 
    debugger; 
    var _self=this; 
    var treeListUrl = '../src/kpiTree/json/treeListData'+nodeId+'.json'; 
    fetch(treeListUrl,{ 
      credentials:'same-origin', 
      async:false, 
      //method: 'POST', 
      method: 'GET', 
      mode:'cors',//跨域请求 
      headers: { 
        "Content-type": "application/x-www-form-urlencoded", 
        "User-Agent": " Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/50.0.2661.102 Safari/537.36" 
      }, 
    }) 
      .then(function(res) { 
        console.log("Response succeeded?", JSON.stringify(res.ok)); 
        return res.json(); 
      }) 
 
      .then(function(data) { 
        debugger 
        _self._renderTreeNode(nodeObj,data,paddingLeft); 
      }) 
      .catch(function(e) { 
        console.log("fetch fail",e.toString()); 
      }); 
 
  } 
  _handleClick=(nodeId,event)=>{ 
    debugger; 
    var _clickImg=event.currentTarget 
    var currentNode=event.currentTarget.parentNode; 
    if(_clickImg.src.indexOf("hide")!=-1){ 
      _clickImg.src="/src/kpiTree/images/show.png"; 
      if(currentNode.childNodes[3]!=null&¤tNode.childNodes[3]!=undefined){ 
        this._showOrHideNode(currentNode,1); 
      } 
      else { 
        this._fetchTreeNodeData(nodeId,currentNode,20); 
      } 
    } 
    else if(_clickImg.src.indexOf("show")!=-1){ 
      _clickImg.src="/src/kpiTree/images/hide.png"; 
      this._showOrHideNode(currentNode,0); 
    } 
  } 
  _showOrHideNode=(pNode,isShow)=>{ 
    var _sub_nodes=pNode.childNodes; 
    for(var i=0;i<_sub_nodes.length;i++){ 
      if(_sub_nodes[i].pid==pNode.id){ 
        if(isShow==1){ 
          _sub_nodes[i].style.display="block"; 
        } 
        else if(isShow==0){ 
          _sub_nodes[i].style.display="none"; 
        } 
      } 
    } 
  } 
  render=()=> { 
    var tabId=this.props.tabId; 
    var _kpiTreePanelHeight=tabId=="tab01"?"kpitree_panel_height_01":"kpitree_panel_height_02"; 
    var _bottomContentHeight=tabId=="tab01"?"kbottom-content_height_01":"kbottom-content_height_02"; 
    return ( 
      <div className={"kpitree_panel "+_kpiTreePanelHeight}> 
        <div className="ksearch-div"> 
          <input type="text" className="ksearch-input" ref="ksearchInput" placeholder=" 请输入搜索关键字"/> 
          <img className="ksearch-icon" src="/src/kpiTree/images/search-icon.png" onClick={this._handleSearch}/> 
          <div className="kreturn-button" onClick={this._handleReturn}> 
            <span>返回</span> 
          </div> 
          <div className="kselecte-button" onClick={this._handleSelect}> 
            <span>指标选择</span> 
          </div> 
        </div> 
        <div className={"kbottom-content "+_bottomContentHeight} ref="kpiTree"> 
        </div> 
      </div> 
    ); 
  } 
};

kpiTree.less文件

.kpitree_panel{ 
 position: relative; 
 width:308px; 
 background-color: #F2F2F2; 
 border: 1px solid #cfcfcf ; 
} 
.kpitree_panel_height_01{ 
 height: 548px; 
} 
.kpitree_panel_height_02{ 
 height: 378px; 
} 
.ksearch-div{ 
 position: relative; 
 top: 10px; 
 margin-left: 4px; 
 width: 310px; 
 height: 30px; 
} 
.ksearch-input{ 
 border: 1px; 
 width: 145px; 
 height: auto; 
 border-radius: 10px; 
} 
.ksearch-icon{ 
 position: relative; 
 left: -24px; 
 width: 17px; 
 height: 17px; 
} 
.ksearch-button{ 
 position: relative; 
 left: 150px; 
 top: -22px; 
 font-size: 12px; 
 color: #999999; 
 padding-top: 3px; 
 text-align: center; 
 cursor: pointer; 
 width: 40px; 
 height:24px; 
 border: solid 0.8px #CBCBCB ; 
 -webkit-border-radius: 8px; 
} 
.kreturn-button{ 
 position: relative; 
 left: 171px; 
 top: -22px; 
 font-size: 12px; 
 color: #999999; 
 padding-top: 3px; 
 text-align: center; 
 cursor: pointer; 
 width: 40px; 
 height: 24px; 
 border: solid 0.8px #CBCBCB; 
 -webkit-border-radius: 8px; 
} 
.kselecte-button{ 
 position: relative; 
 left: 226px; 
 top: -46px; 
 font-size: 12px; 
 color: #999999; 
 padding-top: 3px; 
 text-align: center; 
 cursor: pointer; 
 width: 60px; 
 height: 25px; 
 border: solid 0.8px #CBCBCB; 
 -webkit-border-radius: 8px; 
 background-color: #F2F2F2; 
} 
.kbottom-content{ 
 padding: 10px; 
 color: #999999; 
 margin-left: 13px; 
 overflow-y: scroll; 
 overflow-x: hidden; 
 width: 280px; 
 margin-top: 20px; 
 background-color: #F7F7F7; 
} 
.kbottom-content_height_01{ 
 height: 480px; 
 } 
.kbottom-content_height_02{ 
 height: 318px; 
} 
.knode-hide-show-icon{ 
 width: 10px; 
 height: 10px; 
 cursor: pointer; 
}

下面这些json文件都放入json文件夹中

treeListData.json文件

[ 
 {"kid":"01","kname":"综合指标","hasChild":"1","pid":"-1"}, 
 {"kid":"02","kname":"分析类指标","hasChild":"1","pid":"-1"}, 
 {"kid":"03","kname":"组合指标","hasChild":"1","pid":"-1"}, 
 {"kid":"04","kname":"移动业务计费收入","hasChild":"1","pid":"-1"}, 
 {"kid":"05","kname":"2G业务","hasChild":"1","pid":"-1"} 
]

treeListData01.json文件

[ 
 {"kid":"010","kname":"综合指标1","hasChild":"1","pid":"01"}, 
 {"kid":"011","kname":"分析类指标1","hasChild":"1","pid":"01"}, 
 {"kid":"012","kname":"组合指标1","hasChild":"1","pid":"01"}, 
 {"kid":"013","kname":"移动业务计费收入1","hasChild":"1","pid":"01"}, 
 {"kid":"014","kname":"2G业务1","hasChild":"1","pid":"01"} 
]

treeListData010.json文件

[ 
 {"kid":"0100","kname":"综合指标000","hasChild":"0","pid":"010"}, 
 {"kid":"0101","kname":"分析类指标000","hasChild":"0","pid":"010"}, 
 {"kid":"0102","kname":"组合指标000","hasChild":"0","pid":"010"}, 
 {"kid":"0103","kname":"移动业务计费收入000","hasChild":"0","pid":"010"}, 
 {"kid":"0104","kname":"2G业务000","hasChild":"0","pid":"010"} 
]

searchListData.json文件

[ 
 {"kid":"01","kname":"综合指标","hasChild":"0","pid":"-1"}, 
 {"kid":"02","kname":"分析类指标","hasChild":"0","pid":"-1"}, 
 {"kid":"03","kname":"组合指标","hasChild":"0","pid":"-1"}, 
 {"kid":"04","kname":"移动业务计费收入","hasChild":"0","pid":"-1"}, 
 {"kid":"05","kname":"2G业务","hasChild":"0","pid":"-1"}, 
 {"kid":"01","kname":"综合指标","hasChild":"0","pid":"-1"}, 
 {"kid":"02","kname":"分析类指标","hasChild":"0","pid":"-1"}, 
 {"kid":"03","kname":"组合指标","hasChild":"0","pid":"-1"}, 
 {"kid":"04","kname":"移动业务计费收入","hasChild":"0","pid":"-1"}, 
 {"kid":"05","kname":"2G业务","hasChild":"0","pid":"-1"}, 
 {"kid":"01","kname":"综合指标","hasChild":"0","pid":"-1"}, 
 {"kid":"02","kname":"分析类指标","hasChild":"0","pid":"-1"}, 
 {"kid":"03","kname":"组合指标","hasChild":"0","pid":"-1"}, 
 {"kid":"04","kname":"移动业务计费收入","hasChild":"0","pid":"-1"}, 
 {"kid":"05","kname":"2G业务","hasChild":"0","pid":"-1"}, 
 {"kid":"01","kname":"综合指标","hasChild":"0","pid":"-1"}, 
 {"kid":"02","kname":"分析类指标","hasChild":"0","pid":"-1"}, 
 {"kid":"03","kname":"组合指标","hasChild":"0","pid":"-1"}, 
 {"kid":"04","kname":"移动业务计费收入","hasChild":"0","pid":"-1"}, 
 {"kid":"05","kname":"2G业务","hasChild":"0","pid":"-1"} 
]

树组件运行后的结果:

ReactJs实现树形结构的数据显示的组件的示例 

搜索结果:(这里是请求了一个json文件的数据,在实际的交互中可根据自己输入的名称去请求后台对应的数据即可)

ReactJs实现树形结构的数据显示的组件的示例 

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持三水点靠木

Javascript 相关文章推荐
Dom与浏览器兼容性说明
Oct 25 Javascript
JavaScript 处理Iframe自适应高度(同或不同域名下)
Mar 29 Javascript
你必须知道的JavaScript 变量命名规则详解
May 07 Javascript
点击按钮或链接不跳转只刷新页面的脚本整理
Oct 22 Javascript
原生javascript实现图片按钮切换
Jan 12 Javascript
整理JavaScript对DOM中各种类型的元素的常用操作
May 05 Javascript
jQuery回到顶部的代码
Jul 09 Javascript
javascript鼠标跟随运动3种效果(眼球效果,苹果菜单,方向跟随)
Oct 27 Javascript
微信小程序 template模板详解及实例
Feb 21 Javascript
angular中子控制器向父控制器传值的实例
Oct 08 Javascript
jQuery点击页面其他部分隐藏下拉菜单功能
Nov 27 jQuery
js仿淘宝放大镜效果
Dec 28 Javascript
基于 Vue 的树形选择组件的示例代码
Aug 18 #Javascript
简单实现jQuery手风琴效果
Aug 18 #jQuery
JavaScript中Hoisting详解 (变量提升与函数声明提升)
Aug 18 #Javascript
JavaScript实现旋转轮播图
Aug 18 #Javascript
JavaScript定时器setTimeout()和setInterval()详解
Aug 18 #Javascript
ECMAscript 变量作用域总结概括
Aug 18 #Javascript
微信小程序之前台循环数据绑定
Aug 18 #Javascript
You might like
基于PHP常用文件函数和目录函数整理
2017/08/17 PHP
jquery仿京东导航/仿淘宝商城左侧分类导航下拉菜单效果
2013/04/24 Javascript
jQuery性能优化的38个建议
2014/03/04 Javascript
JavaScript 基础函数_深入剖析变量和作用域
2016/05/18 Javascript
Bootstrap框架的学习教程详解(二)
2016/10/18 Javascript
jQuery基于ajax操作json数据简单示例
2017/01/05 Javascript
javascript笔记之匿名函数和闭包
2017/02/06 Javascript
js-FCC算法-No repeats please字符串的全排列(详解)
2017/05/02 Javascript
原生JS实现的雪花飘落动画效果
2018/05/03 Javascript
js贪心算法 钱币找零问题代码实例
2019/09/11 Javascript
layer 关闭指定弹出层的例子
2019/09/25 Javascript
[08:29]DOTA2每周TOP10 精彩击杀集锦vol.7
2014/06/25 DOTA
python聊天程序实例代码分享
2013/11/18 Python
跟老齐学Python之集合的关系
2014/09/24 Python
python使用PyGame播放Midi和Mp3文件的方法
2015/04/24 Python
Python使用multiprocessing创建进程的方法
2015/06/04 Python
python冒泡排序简单实现方法
2015/07/09 Python
基于python脚本实现软件的注册功能(机器码+注册码机制)
2016/10/09 Python
python 实现在txt指定行追加文本的方法
2018/04/29 Python
基于python requests库中的代理实例讲解
2018/05/07 Python
python 编写简单网页服务器的实例
2018/06/01 Python
Python实现统计英文文章词频的方法分析
2019/01/28 Python
Python数据可视化:顶级绘图库plotly详解
2019/12/07 Python
python同义词替换的实现(jieba分词)
2020/01/21 Python
Win10下安装并使用tensorflow-gpu1.8.0+python3.6全过程分析(显卡MX250+CUDA9.0+cudnn)
2020/02/17 Python
使用 prometheus python 库编写自定义指标的方法(完整代码)
2020/06/29 Python
VICHY薇姿英国官网:全球专业敏感肌护肤领先品牌
2017/07/04 全球购物
乌克兰排名第一的在线旅游超市:Farvater.Travel
2020/01/02 全球购物
Woods官网:加拿大最古老、最受尊敬的户外品牌之一
2020/09/12 全球购物
武汉东之林科技有限公司机试
2013/09/17 面试题
Java中的异常处理机制的简单原理和应用
2013/04/27 面试题
工作目标责任书
2014/07/23 职场文书
单位租房协议书样本
2014/10/30 职场文书
导游词之重庆渣滓洞
2020/01/08 职场文书
Vue中插槽slot的使用方法与应用场景详析
2021/06/08 Vue.js
GO语言异常处理分析 err接口及defer延迟
2022/04/14 Golang