var userZTree; 
var userSetting={ 
 check: { 
  enable: true, 
  chkStyle: "radio", 
  chkboxType : {"Y" : "" , "N" : ""}, 
  radioType: "all" 
 }, 
 data: { 
  simpleData: { 
  enable: true, 
  idKey : "id", 
  pIdKey : "pid" 
  } 
 }, 
 callback:{ 
  onClick : clickCheck 
 }, 
 view :{ 
  showIcon: false, 
  fontCss: getFontCss 
 } 
}; 

function getFontCss(treeId, treeNode) { 
 return (!!treeNode.highlight) ? {color:"#A60000", "font-weight":"bold"} : {color:"#333", "font-weight":"normal"}; 
} 

<div id="userDiv" class="showParentDiv showDiv" style="z-index:105;display: none;"> 
 <div class="grayBg"> 
  <div class="toolbar"> 
  <input type="button" value=" <s:text name='button.submit'/> " onclick="submitUser();"/> 
  <input type="button" value=" <s:text name='button.cancel'/> " onclick="closeUserDiv();"/> 
  <input type="button" value=" 新建 " onclick="toAddDiv();"/> 
 </div> 
 </div> 
 <div style="text-align:left;margin:5px;height: 15px;">按名字過濾：<input type="text" id="dicKey" onkeyup="changeColor('userTree','name',this.value)"/></div> 
 <ul id="userTree" class="ztree" style="height:350px; overflow-y:scroll;"></ul> 
</div>

//使用搜索數(shù)據(jù) 加高亮顯示功能，需要2步 
//1.在tree的setting 的view 設(shè)置里面加上 fontCss: getFontCss 設(shè)置 
//2.在ztree容器上方，添加一個文本框，并添加onkeyup事件，該事件調(diào)用固定方法 changeColor(id,key,value） 
// id指ztree容器的id，一般為ul，key是指按ztree節(jié)點的數(shù)據(jù)的哪個屬性為條件來過濾,value是指過濾條件，該過濾為模糊過濾 
function changeColor(id,key,value){ 
 treeId = id; 
 updateNodes(false); 
 if(value != ""){ 
 var treeObj = $.fn.zTree.getZTreeObj(treeId); 
 nodeList = treeObj.getNodesByParamFuzzy(key, value); 
 if(nodeList && nodeList.length>0){ 
  updateNodes(true); 
 } 
 } 
} 
function updateNodes(highlight) { 
 var treeObj = $.fn.zTree.getZTreeObj(treeId); 
 for( var i=0; i<nodeList.length; i++) { 
 nodeList[i].highlight = highlight; 
 treeObj.updateNode(nodeList[i]); 
 } 
} 

treeObj.getNodesByParamFuzzy(key, value);