<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<link rel="stylesheet" type="text/css"
href="<%=path%>/easyui/themes/default/easyui.css">
<link rel="stylesheet" type="text/css"
href="<%=path%>/easyui/themes/icon.css">
<link rel="stylesheet" type="text/css" href="<%=path%>/easyui/demo.css">
<script type="text/javascript"
src="<%=path%>/easyui/jquery-1.7.2.min.js"></script>
<script type="text/javascript"
src="<%=path%>/easyui/jquery.easyui.min.js"></script>
<script type="text/javascript">
$(function(){
$("#t1").combotree({
url:‘/egoTest/tree/loadTree.do‘,
width:300,
checkbox:true,
multiple:true
});
$("#btn1").click(function(){
console.info($("#t1").combotree(‘getValue‘));
});
$("#btn2").click(function(){
var tree = $("#t1").combotree(‘tree‘);
var root = tree.tree(‘getRoot‘);
console.info(root);
});
});
</script>
<title>Insert title here</title>
</head>
<body>
<input id="t1"/>
<a id="btn1" class="easyui-linkbutton">获取tree选中的值</a>
<a id="btn2" class="easyui-linkbutton">获取tree对象</a>
</body>
</html>
原文：http://www.cnblogs.com/cxxjohnson/p/4888865.html