var setting = { 
 showLine: true, 
 checkable: true 
}; 

var zTreeNodes = [ 
 {"id":1, "name":"test1", "nodes":[ 
 {"id":11, "name":"test11", "nodes":[ 
 {"id":111, "name":"test111"} 
 ]}, 
 {"id":12, "name":"test12"} 
 ]}, 
 ...... 
]; 

var treeNodes = [          
 {"id":1, "pId":0, "name":"test1"}, 
 {"id":11, "pId":1, "name":"test11"}, 
 {"id":12, "pId":1, "name":"test12"}, 
 {"id":111, "pId":11, "name":"test111"}, 
 ...... 
]; 

<!-- ZTree树形插件 --> 
<link rel="stylesheet" href="<%=root%>/Web/common/css/zTreeStyle/zTreeStyle.css" rel="external nofollow" type="text/css"> 
<!-- <link rel="stylesheet" href="<%=root%>/Web/common/css/zTreeStyle/zTreeIcons.css" rel="external nofollow" type="text/css"> --> 
<script type="text/javascript" src="<%=root%>/Web/common/js/jquery-ztree-2.5.min.js"></script> 

var setting = { 
 isSimpleData : true,  //数据是否采用简单 Array 格式，默认false 
 treeNodeKey : "id",  //在isSimpleData格式下，当前节点id属性 
 treeNodeParentKey : "pId", //在isSimpleData格式下，当前节点的父节点id属性 
 showLine : true,   //是否显示节点间的连线 
 checkable : true   //每个节点上是否显示 CheckBox 
 }; 
 
var treeNodes = [ 
 {"id":1, "pId":0, "name":"test1"}, 
 {"id":11, "pId":1, "name":"test11"}, 
 {"id":12, "pId":1, "name":"test12"}, 
 {"id":111, "pId":11, "name":"test111"}, 
]; 

var zTree; 

$(function() { 
 zTree = $("#tree").zTree(setting, treeNodes); 
 }); 

public void doGetPrivilegeTree() throws IOException{ 
 String s1 = "{id:1, pId:0, name:\"test1\" , open:true}"; 
 String s2 = "{id:2, pId:1, name:\"test2\" , open:true}"; 
 String s3 = "{id:3, pId:1, name:\"test3\" , open:true}"; 
 String s4 = "{id:4, pId:2, name:\"test4\" , open:true}"; 
 List<String> lstTree = new ArrayList<String>(); 
 lstTree.add(s1); 
 lstTree.add(s2); 
 lstTree.add(s3); 
 lstTree.add(s4); 
 //利用Json插件将Array转换成Json格式 
 response.getWriter().print(JSONArray.fromObject(lstTree).toString()); 
 } 

var setting = { 
 isSimpleData : true,  //数据是否采用简单 Array 格式，默认false 
 treeNodeKey : "id",  //在isSimpleData格式下，当前节点id属性 
 treeNodeParentKey : "pId", //在isSimpleData格式下，当前节点的父节点id属性 
 showLine : true,   //是否显示节点间的连线 
 checkable : true   //每个节点上是否显示 CheckBox 
}; 
 
var zTree; 
var treeNodes; 
 
$(function(){ 
 $.ajax({ 
 async : false, 
 cache:false, 
 type: 'POST', 
 dataType : "json", 
 url: root+"/ospm/loginInfo/doGetPrivilegeTree.action",//请求的action路径 
 error: function () {//请求失败处理函数 
  alert('请求失败'); 
 }, 
 success:function(data){ //请求成功后处理函数。 
  alert(data); 
  treeNodes = data; //把后台封装好的简单Json格式赋给treeNodes 
 } 
 }); 
 
 zTree = $("#tree").zTree(setting, treeNodes); 
}); 

var url = "/ospm/loginInfo/doGetPrivilegeTree.action"; 
 //zTree基本设置 
 var setting = { 
 async : true, //需要采用异步方式获取子节点数据,默认false 
 asyncUrl : root + url, //当 async = true 时，设置异步获取节点的 URL 地址 ,允许接收 function 的引用 
 asyncParam : ["id"], //提交的与节点数据相关的必需参数 
 isSimpleData : true, //数据是否采用简单 Array 格式，默认false 
 treeNodeKey : "id", //在isSimpleData格式下，当前节点id属性 
 treeNodeParentKey : "parentId", //在isSimpleData格式下，当前节点的父节点id属性 
 nameCol : "privName",  //在isSimpleData格式下，当前节点名称 
 expandSpeed : "fast", //设置 zTree节点展开、折叠时的动画速度或取消动画(三种默认定义："slow", "normal", "fast")或 表示动画时长的毫秒数值(如：1000) 
 showLine : true, //是否显示节点间的连线 
 callback : { //回调函数 
  rightClick : zTreeOnRightClick //右键事件 
 } 
 }; 

//显示右键菜单 
 function showRMenu(type, x, y) { 
 $("#rMenu ul").show(); 
 if (type=="root") { 
  $("#m_del").hide(); 
  $("#m_check").hide(); 
  $("#m_unCheck").hide(); 
 } 
 $("#rMenu").css({"top":y+"px", "left":x+"px", "display":"block"}); 
 } 
 //隐藏右键菜单 
 function hideRMenu() { 
 $("#rMenu").hide(); 
 } 
 
 //鼠标右键事件-创建右键菜单 
 function zTreeOnRightClick(event, treeId, treeNode) { 
 if (!treeNode) { 
  zTree.cancelSelectedNode(); 
  showRMenu("root", event.clientX, event.clientY); 
 } else if (treeNode && !treeNode.noR) { //noR属性为true表示禁止右键菜单 
  if (treeNode.newrole && event.target.tagName != "a" && $(event.target).parents("a").length == 0) { 
  zTree.cancelSelectedNode(); 
  showRMenu("root", event.clientX, event.clientY); 
  } else { 
  zTree.selectNode(treeNode); 
  showRMenu("node", event.clientX, event.clientY); 
  } 
 } 
 } 

<p><span style="background-color: #fafafa;"><!-- 右键菜单div --> 
 <div id="rMenu" style="position:absolute; display:none;"> 
 <li> 
 <ul id="m_add" onclick="addPrivilege();"><li>增加</li></ul> 
 <ul id="m_del" onclick="delPrivilege();"><li>删除</li></ul> 
 <ul id="m_del" onclick="editPrivilege();"><li>编辑</li></ul> 
 <ul id="m_del" onclick="queryPrivilege();"><li>查看</li></ul> 
 </li> 
 </div></span></p> 

function reloadTree() { 
 hideRMenu(); 
 zTree = $("#tree").zTree(setting, treeNodes); 
 } 
 
 var zTree; 
 var treeNodes = []; 
 
 
$(function() { 
 reloadTree(); 
 
 $("body").bind(//鼠标点击事件不在节点上时隐藏右键菜单 
  "mousedown", 
  function(event) { 
   if (!(event.target.id == "rMenu" || $(event.target) 
    .parents("#rMenu").length > 0)) { 
   $("#rMenu").hide(); 
   } 
  }); 
 }); 

public void doGetPrivilegeTree() throws IOException{ 
 String sId = request.getParameter("id"); 
 int treeId = 0; 
 if(sId!=null&&!"".equals(sId)){ 
  treeId = Integer.parseInt(sId); 
 } 
 List<Privilege> lstPriv = privilegeService.findPrivilegeTreeById(treeId); 
 response.setCharacterEncoding("UTF-8"); 
 response.getWriter().print(JSONArray.fromObject(lstPriv).toString()); 
 } 

/** 
 * 根据节点id，查询其下级节点的数据 
 */ 
 @SuppressWarnings("unchecked") 
 @Override 
 public List<Privilege> findPrivilegeTreeById(int treeId) { 
 StringBuffer sbTree= new StringBuffer(); 
 sbTree.append("SELECT NEW Privilege(p.id,p.privName,p.description,p.status,p.isLeaf,p.parentId) FROM Privilege p "); 
 sbTree.append("WHERE p.parentId=:treeId "); 
 sbTree.append("AND p.status!=:del "); 
  
 Map<String,Object> mapTree = new HashMap<String, Object>(); 
 mapTree.put("treeId", treeId); 
 mapTree.put("del", Privilege.PRIV_STATUS_DELETE); 
  
 return (List<Privilege>) privilegeDao.findByHql(sbTree.toString(), mapTree); 
 }