ztree官网：http://www.ztree.me/v3/main.php#_zTreeInfo
页面：
<span style="font-size:14px;"><%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'index.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
<link rel="stylesheet" type="text/css" href="jquery/zTree/css/demo.css">
<link rel="stylesheet" type="text/css" href="jquery/zTree/css/zTreeStyle/zTreeStyle.css">
<script type="text/javascript" src="jquery/zTree/js/jquery-1.4.4.min.js"></script>
<script type="text/javascript" src="jquery/zTree/js/jquery.ztree.core-3.5.min.js"></script><!-- 核心js -->
<script type="text/javascript" src="jquery/zTree/js/jquery.ztree.excheck-3.5.min.js"></script><!-- 复选框js -->
<script type="text/javascript" src="jquery/zTree/js/jquery.ztree.exedit-3.5.min.js"></script><!-- 可编辑js -->
</head>
<script type="text/javascript">
// zTree v3.x用法
function init(){
var setting = {
async:{
enable: true,//启用异步加载
url:"TestzTreeServlet?type=load",
autoParam:["id", "name"],//后台接受参数的名称
//dataFilter: filter//数据过滤
type:"post"
},
view:{
showIcon:true,//显示图标
showLine:true,//显示连线
showTitle:true,
fontCss:{color:"blue"}//字体样式
},
edit:{
enable: true, //允许编辑节点
showRenameBtn: true,
renameTitle: setRenameTitle,
showRemoveBtn:false
},
callback:{
onAsyncError:function(event, treeId, treeNode, XMLHttpRequest, textStatus, errorThrown){//加载异常
alert(errorThrown);
},
onRename:function(event, treeId, treeNode, isCancel){
var ps={id:treeNode.id,name:treeNode.name};
$.post("TestzTreeServlet?type=edit",ps,function(data){
var treeObj=$.fn.zTree.getZTreeObj(treeId);
if(data!="true"){
alert(data);
treeObj.refresh();
}
});
},
onClick:show //节点点击事件
}
};
/*
var treeNodes=[{id:1,pId:0,name:"文件夹1",isParent:true}
{id:11,pId:1,name:"文件1",isParent:false}
{id:12,pId:1,name:"文件2",isParent:false}
{id:2,pId:0,name:"文件夹1",isParent:true}
];
$.fn.zTree.init($("#file_tree"), setting,treeNodes);
*/
$.fn.zTree.init($("#file_tree"), setting);
}
function filter(treeId, parentNode, childNodes) {
if (!childNodes) return null;
for (var i=0, l=childNodes.length; i<l; i++) {
childNodes[i].name = childNodes[i].name.replace(/\.n/g, '.');
}
return childNodes;
}
function show(event, treeId, treeNode){
alert("id="+treeNode.id+",pId="+treeNode.pId);
}
function setRenameTitle(treeId, treeNode) {
return treeNode.isParent ? "编辑父节点名称":"编辑叶子节点名称";
}
</script>
<body onload="init()">
呵呵。。。
<div class="zTreeDemoBackground left" style="margin-left:50px;">
<ul id="file_tree" class="ztree"></ul>
</div>
</body>
</html>
</span>
<span style="font-size:14px;">package servlet;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import net.sf.json.JSONArray;
//import com.google.gson.JsonArray;
import util.TreeJson;
public class TestzTreeServlet extends HttpServlet {
@Override
protected void service(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
request.setCharacterEncoding("UTF-8");
response.setCharacterEncoding("utf-8");
response.setContentType("text/html");
String id=request.getParameter("id");
String type=request.getParameter("type");
if(id==null || "".equals(id)){
id="E:/test";
}
if(type!=null && type.equals("edit")){
String name=request.getParameter("name");
String msg="true";
try{
if(name==null || name.trim().equals("")){
msg="节点名称不能为空！";
}
editFile(id,name);
}catch(Exception e){
msg="编辑失败："+e.getMessage();
}
response.getWriter().write(msg);
}else{
List list=readPath(id);
JSONArray json=JSONArray.fromObject(list);
response.getWriter().write(json.toString());
}
}
public static List readPath(String path){
List list=new ArrayList();
File file = new File(path);
if(file.exists()){
File[] fs=file.listFiles();
if(fs!=null && fs.length>0){//有多个文件
for(int i=0;i<fs.length;i++){
Map map = new HashMap();
map.put("id", fs[i].getAbsolutePath());
map.put("pId", path);
map.put("name", fs[i].getName());
map.put("isParent",fs[i].isFile()==true?"false":"true");
list.add(map);
}
}
}
return list;
}
public static void editFile(String path,String rename) throws Exception{
File file = new File(path);
if(file.exists()){
String rePath="";
if(path.contains("/")){
rePath=path.substring(0, path.lastIndexOf("/")+1)+rename;
}else if(path.contains("\\")){
rePath=path.substring(0, path.lastIndexOf("\\")+1)+rename;
}
file.renameTo(new File(rePath));
}
}
}
</span>
原文地址：http://blog.csdn.net/xiaosheng_papa/article/details/44195521
