struts2 jquery 打造无限层次的树

<%-- tree.jsp --%>
<%@ page pageEncoding="gbk" contentType="text/html;charset=gbk" import="java.util.ArrayList" %>
<%@ taglib uri="/struts-tags" prefix="s" %>
<link rel="stylesheet" href="${myRoot }/jquery/jquery.treeview.css" />
<link rel="stylesheet" href="${myRoot }/jquery/screen.css" />
<script src="${myRoot }/jquery/jquery.js" type="text/javascript"></script>
<script src="${myRoot }/jquery/jquery.treeview.js" type="text/javascript"></script>
<%
//需要:Struts2 , jquery树插件,其下载地址为: http://xiazai.jb51.net/200910/other/jquery.treeview.zip
//无限层次的树--作者 郴州拓职软件学院任文敏
//模拟数据库数据:每行数据包括--自己ID,自己内容,父亲ID
ArrayList ary = new ArrayList(); //所有数据
String[] ary1 = new String[]{"1","item1","0"}; //每行数据
ary.add(ary1);
ary1 = new String[]{"2","item2","0"};
ary.add(ary1);
ary1 = new String[]{"3","item3","0"};
ary.add(ary1);
ary1 = new String[]{"4","item1_1","1"};
ary.add(ary1);
ary1 = new String[]{"5","item1_2","1"};
ary.add(ary1);
ary1 = new String[]{"6","item1_2_1","5"};
ary.add(ary1);
ary1 = new String[]{"7","item1_2_2","5"};
ary.add(ary1);
ary1 = new String[]{"8","item2_1","2"};
ary.add(ary1);
ary1 = new String[]{"9","item2_1_1","8"};
ary.add(ary1);
ary1 = new String[]{"10","item2_2","2"};
ary.add(ary1);
ary1 = new String[]{"11","item3_1","3"};
ary.add(ary1);
ary1 = new String[]{"12","item3_2","3"};
ary.add(ary1);
request.setAttribute("datas",ary);
%>
<script type="text/javascript">
$(document).ready(function(){
var oAppend;
<s:iterator value="#request.datas" id="t">
if($("#ul${t[2]}").size()==0) { //如果父亲UL找不到,则创建父亲UL,并附加到父亲LI
oAppend = $("<ul id='ul${t[2]}'><li id='li${t[0]}'><input type='checkbox' value='ck${t[0]}' />${t[1]}</li></ul>").appendTo($("#li${t[2]}"));
}
else { //如果父亲UL找到了,则直接附加到父亲UL
oAppend = $("<li id='li${t[0]}'><input type='checkbox' value='ck${t[0]}' />${t[1]}</li>").appendTo("#ul${t[2]}");
}
</s:iterator>
$("#ul0").treeview({ //通过根节点容器展示整个树
});
});
</script>
<!-- 容纳根节点的UL，这里0是根节点的父亲节点 -->
<ul id="ul0"></ul>

jquery树插件,其下载地址为: http://xiazai.jb51.net/200910/other/jquery.treeview.zip