求jsp树的原代码（分不够可以加！）

<%@ page contentType ="text/html;charset=gb2312" %>
<%@ page import="java.util.*;" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
</HEAD>
<BODY>
<iframe width="100%" height="100" id="hiddenframe"></iframe>
<script>
function ExpandNode(ParentNode,ParentId){
var NodeX = eval(ParentNode.id + '_0');
if (NodeX.style.display == 'none')
{
  NodeX.style.display="block";
  if (NodeX.loaded == 'no')
     {
      document.frames['hiddenframe'].location.replace("subtree.jsp?PID=" + ParentId + "&PNode=" + ParentNode.id);
      NodeX.loaded = 'yes';
    }
}
else
{
  NodeX.style.display='none';
}
}
</script>
<CENTER>
<TABLE border="1" width="20%" height="60%">
<TR>
<TD>
<DIV style="OVERFLOW: auto;WIDTH: 100%;HEIGHT: 100%">
<TABLE width="300%">
<TR>
<TD>
<%
java.lang.Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
//  java.sql.Connection ConnectionX = java.sql.DriverManager.getConnection("jdbc:ODBC:driver={Microsoft Access Driver (*.mdb)};DBQ=D:\\Resin\\doc\\examples\\Tree\\tree.mdb","admin", "");
//  java.sql.Statement StatementX = ConnectionX.createStatement();
java.sql.ResultSet ResultSetX = java.sql.DriverManager.getConnection("jdbc:ODBC:driver={Microsoft Access Driver (*.mdb)};DBQ=e:\\resin-2.1.6\\doc\\examples\\Tree\\tree.mdb","admin", "").createStatement().executeQuery("select *,(select count(*) from tree where parentid = T.id) as children from tree T where parentid = 0");
int i=0;
int children;
int ID;
while (ResultSetX.next())
       {
children=ResultSetX.getInt("children");
ID=ResultSetX.getInt("id");
%>
<div id='Node_<%= i %>'><a href='#'
        <% if (children >0)
              {%>
                 onClick='ExpandNode(Node_<%= i %>,<%=ID %>)'>+</a>
              <%;}
            else {%>
                >-</a><%;}%>
        <a href='#'
        <% if (children >0)
                {%>
                    onDblClick='ExpandNode(Node_<%= i %>,<%=ID%>)'
                <%}  %>
                >
                <%=ResultSetX.getString("re")%></a>
</div>

<div id='Node_<%= i %>_0' style='display: none' loaded='no'>
          正在加载 ...
   </div>
<%
i++;
}
%>
</BODY>
</HTML> 
<%@ page contentType ="text/html;charset=gb2312" %>
<%@ page import="java.util.*;" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME="Keywords" CONTENT="">
<META NAME="Description" CONTENT="">
</HEAD>
<%
String ParentNode = request.getParameter("PNode");
int i;
int j;
String nSpace="";
j= ParentNode.length()- ParentNode.replaceAll("_","").length();
for (i=0;i<j;i++)
   nSpace = nSpace + "  ";
String sHTML ="";
i=0; java.lang.Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");
//  java.sql.Connection ConnectionX = java.sql.DriverManager.getConnection("jdbc:ODBC:driver={Microsoft Access Driver (*.mdb)};DBQ=D:\\Resin\\doc\\examples\\Tree\\tree.mdb","admin", "");
//  java.sql.Statement StatementX = ConnectionX.createStatement();
java.sql.ResultSet ResultSetX = java.sql.DriverManager.getConnection("jdbc:ODBC:driver={Microsoft Access Driver (*.mdb)};DBQ=e:\\resin-2.1.6\\doc\\examples\\Tree\\tree.mdb","admin", "").createStatement().executeQuery("select *,(select count(*) from tree where parentid =T.id ) as Children from tree T where parentid = " + request.getParameter("PID"));
int children;
int ID;
while (ResultSetX.next())
{    children=ResultSetX.getInt("children");
      ID=ResultSetX.getInt("id");
      sHTML = sHTML + "<div id='" + ParentNode + "_" + (i + 1) + "'>" + nSpace + "<a href='#'";
  if (children >0)
     sHTML = sHTML + " onClick='ExpandNode(" + ParentNode + "_" + (i + 1) + "," + ID + ")'>+";
  else sHTML = sHTML + ">-";
      sHTML = sHTML + "</a>\\n" + "<a href='#'";
  if (children >0)
     sHTML = sHTML + " onDblClick='ExpandNode(" + ParentNode + "_" + (i + 1) + "," + ID + ")'";
  sHTML = sHTML + ">" + ID + ": " + ResultSetX.getString("re") + "</a></div>";
  if (children >0)
     sHTML = sHTML + "<div id='" + ParentNode + "_" + (i + 1) + "_0' style='display: none' loaded='no'>" + nSpace + "  正在加载 ...</div>";
%>
<% i++;
    }%>
<BODY>
<script>
   var x = eval('parent.' + '<%= ParentNode + "_0"%>' ) ;
   x.innerHTML="<%= sHTML %>";
</script>
</BODY>
</HTML>

非常感谢，我需要的是一个xml+js得树。

/* JavaScript Document */xmlTree v1.2
=================================Infomation
----------------------
Author   : Lapuasi
E-Mail   : [email protected]
WebSite  : http://www.lapuasi.com/javascript
DateTime : 2005-12-25
Example
----------------------
var tree = new xmlTree('tree'); //生成对象
tree.mode = 1; //设置初始模式，默认全部关闭。0全部关闭，1全部展开
tree.createTree(); //输出树
for Internet Explorer, Mozilla Firefox
*/
function xmlTree(name) {
this.name         = name;                   //实例名称
this.xmlFile      = 'xmltree.xml';          //默认xml文件
this.iconPath     = 'images/'               //默认图标路径
this.iconFolder   = 'tree_icon_folder.gif'; //默认文件夹图标
this.iconFile     = 'tree_icon_file.gif';   //默认文件图标
this.iconOpen     = 'tree_arrow_open.gif';  //默认箭头展开图标
this.iconOver     = 'tree_arrow_over.gif';  //默认箭头活动图标
this.iconClose    = 'tree_arrow_close.gif'; //默认箭头关闭图标
this.mode         = 0;                      //初始模式，默认全部关闭。0全部关闭，1全部展开
this.html         = '';                     //最终输出html代码
this.prevTip      = null;                   //上一次被显示的tip的时间编号 (内部使用)
this.prevSelected = null;                   //上一次被选中的节点的自动编号 (内部使用)
}xmlTree.prototype.createXMLDOM = function() { //生成XMLDOM对象
var xmldom;
if (window.ActiveXObject){
var xmldom = new ActiveXObject("Microsoft.XMLDOM");
} else {
if (document.implementation && document.implementation.createDocument) {
var xmldom = document.implementation.createDocument("","doc",null);
}
}
xmldom.async = false;
xmldom.resolveExternals = false;
xmldom.validateOnParse = false;
xmldom.preserveWhiteSpace = true;
return xmldom;
}xmlTree.prototype.createTree = function() { //生成并打印
var xmldom = this.createXMLDOM();
document.write('<div id="tree"><\/div>'); // 树所用层
document.write('<div id="treeTip"><\/div>'); //提示所用层
document.getElementById('treeTip').style.visibility = 'visible';
document.getElementById('treeTip').style.display = 'none';
if (xmldom.load(this.xmlFile)) {
this.createNodes(xmldom);
} else {
this.html = 'Load XML Error';
}
document.getElementById('tree').innerHTML = this.html;
return;
}xmlTree.prototype.getFirstChildData = function(obj, name) { //取得指定名称节点的第一个子节点的数据
var result = '';
if (typeof(obj) == 'object' && name != null && name != '') {
var node = obj.getElementsByTagName(name);
if (node != null && node.length > 0) {
result = node[0].firstChild.data;
}
}
return result;
}xmlTree.prototype.checkChildNodes = function(obj, id) { //检测是否有分支
var result = false;
var nodes = obj.getElementsByTagName('node');
if (nodes != null && nodes.length > 0) {
//var pid;
for (var i = 0; i < nodes.length; i++) {
//pid = nodes[i].getAttribute('parentid');
if (nodes[i].getAttribute('parentid') == id) {
result = true;
break;
}
}
}
return result;
}xmlTree.prototype.createNodes = function(obj, id) { //生成指定编号节点的树
if (typeof(id) == 'undefined') id = null; //如果没有id传入则为根节点
var nodes = obj.getElementsByTagName('node');
if (nodes != null && nodes.length > 0) {
var modeClass, modeSrc, iconClass, iconSrc;
var nid, npid, nname, nicon, nlink, ntarget, nexplain, hasChildNodes;

//判断模式类型，并应用样式
modeClass = 'close';
modeSrc = this.iconPath + this.iconClose;
if (this.mode == 1) {
modeSrc = this.iconPath + this.iconOpen;
modeClass = 'open';
}
if (id == null) modeClass = 'open'; //若为根节点则显示
this.html += '<ul id="tree_' + id + '_c" class="' + modeClass + '">'; for (var i = 0; i < nodes.length; i++) {
npid = nodes[i].getAttribute('parentid');
if (npid == id) {
//初始化
modeClass = 'close'; iconClass = 'icon-file'; iconSrc = this.iconPath + this.iconFile; //取得节点编号并检测
nid = nodes[i].getAttribute('id');
this.html += '<li id="tree_' + nid + '"><span onclick="' + this.name + '.action(this,event);" onmouseover="' + this.name + '.action(this,event);" onmouseout="' + this.name + '.action(this,event);">';

//取得节点自定义图标
//判断是否含有子节点，并确定箭头和图标的图片及样式
nicon = this.getFirstChildData(nodes[i], 'icon');
hasChildNodes = this.checkChildNodes(obj, nid);
if (hasChildNodes) {
iconClass = '';
iconSrc = this.iconPath + this.iconFolder;
this.html += '<img id="tree_' + nid + '_a" src="' + modeSrc + '" class="arrow" \/>'; //箭头
}
if (nicon != '') iconSrc = nicon;
this.html += '<img id="tree_' + nid + '_i" src="' + iconSrc + '" class="' + iconClass + '" \/>'; //图标 //取得节点连接
nlink = this.getFirstChildData(nodes[i], 'link');
if (nlink != '') {
nlink = ' href="' + nlink + '"';
} else {
nlink = ' href="javascript:;"';
} //取得节点目标
ntarget = this.getFirstChildData(nodes[i], 'target');
if (ntarget != '') {
ntarget = ' target="' + ntarget + '"';
} //取得节点说明
nexplain = this.getFirstChildData(nodes[i], 'explain');
if (nexplain != '') {
nexplain = ' onmouseover="' + this.name + '.treeTips(\'' + nexplain + '\');" onmouseout="' + this.name + '.treeTips();"'
} //取得节点名称
nname = this.getFirstChildData(nodes[i], 'name');
this.html += '<a id="tree_' + nid + '_l" onclick="' + this.name + '.action(this,event);"' + nlink + ntarget + nexplain + '>' + nname + '<\/a><\/span>'; //obj.documentElement.removeChild(nodes[i]);
if (hasChildNodes) this.createNodes(obj, nid); //迭代子节点 this.html += '<\/li>';
}
}
this.html += '<\/ul>';
}
return;
}xmlTree.prototype.action = function(obj, e) { //节点操作
e = e ? e : (window.event ? window.event : null); //获取操作类型
e = e.type;
if (obj.tagName == 'A') {
try { this.prevSelected.className = '';}
catch(e) {}
this.prevSelected = obj;
obj.className = 'selected';
}
if (obj.tagName == 'SPAN') {
var arrow = obj.firstChild; //取得箭头对象
var borther = obj;
while (borther.tagName != 'UL') { //取得分支对象
borther = borther.nextSibling;
if (borther == null) break;
}
if (borther != null) {
switch (e) { //检测操作类型并执行相应代码
case 'click':
if (borther.className == 'open') {
borther.className = 'close';
arrow.src = this.iconPath + this.iconClose;
} else {
borther.className = 'open';
arrow.src = this.iconPath + this.iconOpen;
}
break;
case 'mouseover':
if (arrow.tagName == 'IMG' && borther.className == 'close') {
arrow.src = this.iconPath + this.iconOver;
}
break;
case 'mouseout':
if (arrow.tagName == 'IMG' && borther.className == 'close') {
arrow.src = this.iconPath + this.iconClose;
}
break;
}
}
}
return;
}xmlTree.prototype.treeTips = function(msg) { //提示栏
if (this.prevTip != null) clearTimeout(this.prevTip);
var obj = document.getElementById('treeTip');
if (obj != null) {
if (this.treeTips.arguments.length < 1) { // hide
obj.style.display = 'none';
} else { // show
obj.innerHTML = msg;
this.prevTip = setTimeout('document.getElementById("treeTip").style.display = "block"',300);
document.onmousemove = this.moveToMouseLoc;
}
}
return;
}xmlTree.prototype.moveToMouseLoc = function(e) { //移动到鼠标所在位置
var obj = document.getElementById('treeTip');
if (obj != null) {
var offsetX = -10, offsetY = 20;
var x = 0, y = 0;
if (window.event) {
x = event.x + document.body.scrollLeft;
y = event.y + document.body.scrollTop;
} else {
x = e.pageX;
y = e.pageY;
}
obj.style.left = x + offsetX + 'px';
obj.style.top = y + offsetY + 'px';
}
return;
}

xml 数据:
----<?xml version="1.0" encoding="utf-8"?><root>
<node id="n1">
<name>我的电脑</name>
<icon>images/tree_icon_computer.gif</icon>
<explain>显示连接到此计算机的驱动器和硬件</explain>
</node>
<node id="2" parentid="n1">
<name>硬盘驱动器 (C:)</name>
<icon>images/tree_icon_driver.gif</icon>
</node>
<node id="3">
<name>网上邻居</name>
<icon>images/tree_icon_net.gif</icon>
<explain>显示到网站，网络计算机和FTP站点的快捷方式</explain>
</node>
<node id="4" parentid="n1">
<name>硬盘驱动器 (D:)</name>
<icon>images/tree_icon_driver.gif</icon>
</node>
<node id="5" parentid="2">
<name>Windows</name>
</node>
<node id="6" parentid="3">
<name>menu6</name>
</node>
<node id="7" parentid="3">
<name>menu7</name>
</node>
<node id="8" parentid="3">
<name>menu8</name>
</node>
<node id="9" parentid="7">
<name>menu9</name>
</node>
<node id="10">
<name>回收站</name>
<icon>images/tree_icon_recycler.gif</icon>
<explain>包含您已经删除的文件和文件夹</explain>
</node>
<node id="11" parentid="5">
<name>system32</name>
</node>
<node id="12" parentid="11">
<name>system.dll</name>
<link>http://www.lapuasi.com</link>
<target>_blank</target>
</node>
<node id="13" parentid="7">
<name>menu13</name>
</node>
<node id="14" parentid="n1">
<name>DVD 驱动器</name>
<icon>images/tree_icon_cdrom.gif</icon>
</node>
</root>
----使用方法:
var tree = new xmlTree('tree'); //生成对象
tree.mode = 1; //设置初始模式，默认全部关闭。0全部关闭，1全部展开
tree.createTree(); //输出树

太感谢了。我这些操作都是要根据数据库同步的，如果有发到我email:[email protected]，或者加我MSN:[email protected]
直接告诉我，都会直接给分。

http://hi.baidu.com/lael80/blog/item/cc2d07304707c399a9018e5e.html

调试易

求jsp树的原代码（分不够可以加！）

解决方案 »