ztree

前言

zTree 是一个依靠 jQuery 实现的多功能 “树插件”。优异的性能、灵活的配置、多种功能的组合是 zTree 最大优点。
支持静态和 Ajax 异步加载节点数据.
在开发中我们常需要用到树状的展示.

下载地址：zTree

静态zTree开发流程

引入资源

<link rel="stylesheet" href="../../../css/zTreeStyle/zTreeStyle.css" type="text/css">
<script type="text/javascript" src="../../../js/jquery-1.4.4.min.js"></script>
<script type="text/javascript" src="../../../js/jquery.ztree.core.js"></script>

html元素

<div>
 <ul id="treeDemo" class="ztree"></ul>
</div>

JS方式一-简单json数据格式

<SCRIPT type="text/javascript">
  <!--
  var setting = {
   data: {
    simpleData: {
     enable: true
    }
   }
  };
 
  var zNodes =[
   { id:1, pId:0, name:"父节点1 - 展开", open:true},
   { id:11, pId:1, name:"父节点11 - 折叠"},
   { id:111, pId:11, name:"叶子节点111"},
   { id:112, pId:11, name:"叶子节点112"},
   { id:113, pId:11, name:"叶子节点113"},
   { id:114, pId:11, name:"叶子节点114"},
   { id:12, pId:1, name:"父节点12 - 折叠"},
   { id:121, pId:12, name:"叶子节点121"},
   { id:122, pId:12, name:"叶子节点122"},
   { id:123, pId:12, name:"叶子节点123"},
   { id:124, pId:12, name:"叶子节点124"},
   { id:13, pId:1, name:"父节点13 - 没有子节点", isParent:true},
   { id:2, pId:0, name:"父节点2 - 折叠"},
   { id:21, pId:2, name:"父节点21 - 展开", open:true},
   { id:211, pId:21, name:"叶子节点211"},
   { id:212, pId:21, name:"叶子节点212"},
   { id:213, pId:21, name:"叶子节点213"},
   { id:214, pId:21, name:"叶子节点214"},
   { id:22, pId:2, name:"父节点22 - 折叠"},
   { id:221, pId:22, name:"叶子节点221"},
   { id:222, pId:22, name:"叶子节点222"},
   { id:223, pId:22, name:"叶子节点223"},
   { id:224, pId:22, name:"叶子节点224"},
   { id:23, pId:2, name:"父节点23 - 折叠"},
   { id:231, pId:23, name:"叶子节点231"},
   { id:232, pId:23, name:"叶子节点232"},
   { id:233, pId:23, name:"叶子节点233"},
   { id:234, pId:23, name:"叶子节点234"},
   { id:3, pId:0, name:"父节点3 - 没有子节点", isParent:true}
  ];
 
  $(document).ready(function(){
   $.fn.zTree.init($("#treeDemo"), setting, zNodes);
  });
  //-->
 </SCRIPT>

JS方式二-标准json数据格式

<SCRIPT type="text/javascript">
  <!--
  var setting = { };
 
  var zNodes =[
   { name:"父节点1 - 展开", open:true,
    children: [
     { name:"父节点11 - 折叠",
      children: [
       { name:"叶子节点111"},
       { name:"叶子节点112"},
       { name:"叶子节点113"},
       { name:"叶子节点114"}
      ]},
     { name:"父节点12 - 折叠",
      children: [
       { name:"叶子节点121"},
       { name:"叶子节点122"},
       { name:"叶子节点123"},
       { name:"叶子节点124"}
      ]},
     { name:"父节点13 - 没有子节点", isParent:true}
    ]},
   { name:"父节点2 - 折叠",
    children: [
     { name:"父节点21 - 展开", open:true,
      children: [
       { name:"叶子节点211"},
       { name:"叶子节点212"},
       { name:"叶子节点213"},
       { name:"叶子节点214"}
      ]},
     { name:"父节点22 - 折叠",
      children: [
       { name:"叶子节点221"},
       { name:"叶子节点222"},
       { name:"叶子节点223"},
       { name:"叶子节点224"}
      ]},
     { name:"父节点23 - 折叠",
      children: [
       { name:"叶子节点231"},
       { name:"叶子节点232"},
       { name:"叶子节点233"},
       { name:"叶子节点234"}
      ]}
    ]},
   { name:"父节点3 - 没有子节点", isParent:true}
 
  ];
 
  $(document).ready(function(){
   $.fn.zTree.init($("#treeDemo"), setting, zNodes);
  });
  //-->
 </SCRIPT>

异步zTree加载

前面的配置相同,在此不再阐述.主要是js不同.

异步JS

var setting = {
 //可勾选
 check: {
   enable: true
  },
 data : {
  simpleData : {
   enable : true
  }
 }
};
 
 function initTree(){
  var payFreq = $("#payFreq").val();
  var fyType = $('#fyType').val();
  var setHzType = $('#setHzType').val();
 
  $.ajax({
   url : "/demo/initTree",
   data : {payFreq:payFreq,
     fyType:fyType,
     setHzType:setHzType
   },
   success: function(object){
    var nodes = "";
    //拼接simple格式的json字符串
    $.each(object.data, function(i,item) {
     nodes+="{id:'"+item.id+"', pId:'"+item.pid+"', name:'"+item.name+"', isParent:'"+item.isParent+"'},";
    });
    var zNodes = "["+nodes+"]";
    var json = eval('(' + zNodes + ')'); 
    //console.log(json);
    zTreeInit(json);
   }
  });
 
 }
 /* 初始化树 */
 function zTreeInit(json) {
  $.fn.zTree.init($("#treeDemo"), setting, json);
  var zTree = $.fn.zTree.getZTreeObj("treeDemo");
  //全部展开
  zTree.expandAll(true);
  //Y代表勾选时,N代表取消勾选 p代表父节点,s代表字节点
  setting.check.chkboxType = { "Y" : "ps", "N" : "ps" };
 
 }

java代码

Controller层

@RequestMapping("initTree")
 @ResponseBody
 public DataMessage initTree(String setHzType,String payFreq,String fyType){
  params.put("setHzType", setHzType);
  params.put("fyType", fyType);
  params.put("fkmattr_xt", fkmattr_xt);
  //获取treeinfo列表
  List<TreeInfo> treeInfos = feeTransferService.initTree(params);
  return DataMessage.successData(treeInfos);
 }

tree实体类

public class TreeInfo {
 
 private String id;
 private String pid;
 private String name;
 private String isParent;
 }

jQuery zTree树插件简单使用教程