尊重作者，附原文链接：http://my.oschina.net/u/2472104/blog/529055
Ztree的api http://www.ztree.me/v3/api.php
Ztree的网上demo http://www.ztree.me/v3/demo.php#_102
Ztree的本地demo http://yunpan.cn/cLUREC8yghHRs 访问密码 9440
一、添加样式、js
<link rel="stylesheet" href="${ctx}/hollybeacon/resources/plugins/zTree_v3/css/demo.css" type="text/css">
<link rel="stylesheet" href="${ctx}/hollybeacon/resources/plugins/zTree_v3/css/zTreeStyle/zTreeStyle.css" type="text/css">
<script type="text/javascript" src="${ctx}/hollybeacon/resources/plugins/zTree_v3/js/jquery.ztree.core-3.5.js"></script>
<script type="text/javascript" src="${ctx}/hollybeacon/resources/plugins/zTree_v3/js/jquery.ztree.excheck-3.5.js">
</script> <script type="text/javascript" src="${ctx}