菜单的动态维护问题(菜单从数据库中读出),解决了另开帖加200分 http://fason.nease.net/数据结构是id,parentid,这样管理很方便 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 这个方面的例子很多的,你找一个支持多级菜单的,要么能够提供xml文件,要么有可以调用的接口 <script LANGUAGE="JavaScript"><!--//每个节点有一个数组,包含 4+n个元素 // node[0]为0/1 对应节点的展开/关闭// node[1]为0/1 对应文件夹的关闭/展开// node[2]为1 如果节点的子节点是文档// node[3]是节点的名称// node[4]...node[4+n]为n个子节点// 初始化菜单的数据function generateTree(){//var aux1, aux2, aux3, aux4var auxaux=new ArrayfoldersTree = folderNode("我的网站")<%//menu_id,menu_name,parent_menu_id,folder_or_file,menu_location String sql="select * from tree_menu "; ResultSet RS; RS=executeQuery(sql); try { while(RS.next()) { String foldersTree; int id=RS.getInt("menu_id"); int loc=RS.getInt("menu_location"); int parent=RS.getInt("parent_menu_id"); int folder_or_file=RS.getInt("folder_or_file"); if(loc==1){ foldersTree="foldersTree"; }else{ //foldersTree="aux"+(int)(loc-1); foldersTree="aux["+parent+"]"; } out.println("aux["+id+"]"+" = appendChild("+foldersTree+", folderNode('<a href=main.jsp?menuid="+id+"&loc="+loc+" target=folderFrame>"+RS.getString("menu_name")+"</a>'));"); } } catch(Exception e) { out.println(e.toString()); }%> }// 创建节点的辅助函数function folderNode(name){var arrayAux arrayAux = new Array arrayAux[0] = 0 arrayAux[1] = 0 arrayAux[2] = 0 arrayAux[3] = name return arrayAux}function leafNode(name){var arrayAux arrayAux = new Array arrayAux[0] = 0 arrayAux[1] = 0 arrayAux[2] = 1 arrayAux[3] = name return arrayAux}function appendChild(parent, child){ parent[parent.length] = child return child}function generateDocEntry(icon, docDescription, link){var retString ="" if (icon==0) retString = "<A href='"+link+"' target=folderFrame><img src='doc.gif' alt='在右边框架中打开'" else retString = "<A href='"+link+"' target=_blank><img src='link.gif' alt='在新窗口中打开'" retString = retString + " border=0></a><td nowrap><font style='font-size:9pt;font-family:宋体'>" + docDescription + "</font>" return retString}//刷新树状菜单function redrawTree(){ var doc = top.treeFrame.window.document doc.clear() doc.write("<body bgcolor='white'>") redrawNode(foldersTree, doc, 0, 1, "") doc.close()}function redrawNode(foldersNode, doc, level, lastNode, leftSide){var j=0var i=0 doc.write("<table border=0 cellspacing=0 cellpadding=0>") doc.write("<tr><td valign = middle nowrap>") doc.write(leftSide) if (level>0) if (lastNode) //'brother'子节点数组中有否兄弟节点 { doc.write("<img src='lastnode.gif' width=16 height=22>") leftSide = leftSide + "<img src='blank.gif' width=16 height=22>" } else { doc.write("<img src='node.gif' width=16 height=22>") leftSide = leftSide + "<img src='vertline.gif' width=16 height=22>" } displayIconAndLabel(foldersNode, doc) doc.write("</table>") if (foldersNode.length > 4 && foldersNode[0]) //有更低层的节点和文件夹展开着 { if (!foldersNode[2])//带文件夹的文件夹 { level=level+1 for (i=4; i<foldersNode.length;i++) if (i==foldersNode.length-1) redrawNode(foldersNode[i], doc, level, 1, leftSide) else redrawNode(foldersNode[i], doc, level, 0, leftSide) } else //带文档的文件夹 { for (i=4; i<foldersNode.length;i++) { doc.write("<table border=0 cellspacing=0 cellpadding=0 valign=center>") doc.write("<tr><td nowrap>") doc.write(leftSide) if (i==foldersNode.length - 1) doc.write("<img src='lastnode.gif' width=16 height=22>") else doc.write("<img src='node.gif' width=16 height=22>") doc.write(foldersNode[i]) doc.write("</table>") } } }}function displayIconAndLabel(foldersNode, doc){ doc.write("<A href='javascript:top.openBranch(\"" + foldersNode[3] + "\")'><img src=") if (foldersNode[1]) doc.write("openfolder.gif width=24 height=22 border=noborder></a>") else doc.write("closedfolder.gif width=24 height=22 border=noborder></a>") doc.write("<td valign=middle align=left nowrap>") doc.write("<font style='font-size:9pt;font-family:宋体'>"+foldersNode[3]+"</font>")}//树收拢时调用的函数//当父节点关闭,其所有的子节点也都闭合function closeFolders(foldersNode){var i=0 if (!foldersNode[2]) { for (i=4; i< foldersNode.length; i++) closeFolders(foldersNode[i]) } foldersNode[0] = 0 foldersNode[1] = 0}//收拢节点function clickOnFolderRec(foldersNode, folderName){var i=0 if (foldersNode[3] == folderName) { if (foldersNode[0]) closeFolders(foldersNode) else { foldersNode[0] = 1 foldersNode[1] = 1 } } else { if (!foldersNode[2]) for (i=4; i< foldersNode.length; i++) clickOnFolderRec(foldersNode[i], folderName) }}//打开分支function openBranch(branchName){ clickOnFolderRec(foldersTree, branchName) if (branchName=="Start folder" && foldersTree[0]==0) top.folderFrame.location="basefolder.htm" timeOutId = setTimeout("redrawTree()",100)}//页面载入时的初始化function initializeTree(){ generateTree() redrawTree()}var foldersTree = 0var timeOutId = 0--></script> http://www.csdn.net/develop/read_article.asp?id=20679 晕啊!!!求大家看一下我的代码 关于onmouseover事件的触发 关于JQuery中,toggle(switch)的用法问题 用window.open 打开一个新窗口,显示一个php网页,为什么会出现第二排的一个地址文字栏? 图片幻灯片问题 求图片展示代码 请问这种关联菜单是怎么做的? 高分相送~!各位大哥哥大姐姐,帮帮忙看看怎么把我的二级菜单改成三级的~! 高分求助 怎样提取时间 如何能判断一组单选框中任何一个没有被选中 怎样用JavaScript屏掉浏览器的菜单栏和地址栏、工具栏和状态栏
<!--
//每个节点有一个数组,包含 4+n个元素
// node[0]为0/1 对应节点的展开/关闭
// node[1]为0/1 对应文件夹的关闭/展开
// node[2]为1 如果节点的子节点是文档
// node[3]是节点的名称
// node[4]...node[4+n]为n个子节点// 初始化菜单的数据function generateTree()
{
//var aux1, aux2, aux3, aux4
var aux
aux=new ArrayfoldersTree = folderNode("我的网站")
<%
//menu_id,menu_name,parent_menu_id,folder_or_file,menu_location
String sql="select * from tree_menu ";
ResultSet RS;
RS=executeQuery(sql);
try
{
while(RS.next())
{
String foldersTree;
int id=RS.getInt("menu_id");
int loc=RS.getInt("menu_location");
int parent=RS.getInt("parent_menu_id");
int folder_or_file=RS.getInt("folder_or_file");
if(loc==1){
foldersTree="foldersTree";
}else{
//foldersTree="aux"+(int)(loc-1);
foldersTree="aux["+parent+"]";
} out.println("aux["+id+"]"+" = appendChild("+foldersTree+", folderNode('<a href=main.jsp?menuid="+id+"&loc="+loc+" target=folderFrame>"+RS.getString("menu_name")+"</a>'));"); }
}
catch(Exception e)
{
out.println(e.toString());
}
%>
}// 创建节点的辅助函数
function folderNode(name)
{
var arrayAux
arrayAux = new Array
arrayAux[0] = 0
arrayAux[1] = 0
arrayAux[2] = 0
arrayAux[3] = name
return arrayAux
}
function leafNode(name)
{
var arrayAux
arrayAux = new Array
arrayAux[0] = 0
arrayAux[1] = 0
arrayAux[2] = 1
arrayAux[3] = name
return arrayAux
}function appendChild(parent, child)
{
parent[parent.length] = child
return child
}function generateDocEntry(icon, docDescription, link)
{
var retString ="" if (icon==0)
retString = "<A href='"+link+"' target=folderFrame><img src='doc.gif' alt='在右边框架中打开'"
else
retString = "<A href='"+link+"' target=_blank><img src='link.gif' alt='在新窗口中打开'"
retString = retString + " border=0></a><td nowrap><font style='font-size:9pt;font-family:宋体'>" + docDescription + "</font>" return retString}
//刷新树状菜单
function redrawTree()
{
var doc = top.treeFrame.window.document doc.clear()
doc.write("<body bgcolor='white'>")
redrawNode(foldersTree, doc, 0, 1, "")
doc.close()
}function redrawNode(foldersNode, doc, level, lastNode, leftSide)
{
var j=0
var i=0 doc.write("<table border=0 cellspacing=0 cellpadding=0>")
doc.write("<tr><td valign = middle nowrap>") doc.write(leftSide) if (level>0)
if (lastNode) //'brother'子节点数组中有否兄弟节点
{
doc.write("<img src='lastnode.gif' width=16 height=22>")
leftSide = leftSide + "<img src='blank.gif' width=16 height=22>"
}
else
{
doc.write("<img src='node.gif' width=16 height=22>")
leftSide = leftSide + "<img src='vertline.gif' width=16 height=22>"
} displayIconAndLabel(foldersNode, doc)
doc.write("</table>") if (foldersNode.length > 4 && foldersNode[0]) //有更低层的节点和文件夹展开着
{
if (!foldersNode[2])//带文件夹的文件夹
{
level=level+1
for (i=4; i<foldersNode.length;i++)
if (i==foldersNode.length-1)
redrawNode(foldersNode[i], doc, level, 1, leftSide)
else
redrawNode(foldersNode[i], doc, level, 0, leftSide)
}
else //带文档的文件夹
{
for (i=4; i<foldersNode.length;i++)
{
doc.write("<table border=0 cellspacing=0 cellpadding=0 valign=center>")
doc.write("<tr><td nowrap>")
doc.write(leftSide)
if (i==foldersNode.length - 1)
doc.write("<img src='lastnode.gif' width=16 height=22>")
else
doc.write("<img src='node.gif' width=16 height=22>")
doc.write(foldersNode[i])
doc.write("</table>")
}
}
}
}function displayIconAndLabel(foldersNode, doc)
{
doc.write("<A href='javascript:top.openBranch(\"" + foldersNode[3] + "\")'><img src=")
if (foldersNode[1])
doc.write("openfolder.gif width=24 height=22 border=noborder></a>")
else
doc.write("closedfolder.gif width=24 height=22 border=noborder></a>")
doc.write("<td valign=middle align=left nowrap>")
doc.write("<font style='font-size:9pt;font-family:宋体'>"+foldersNode[3]+"</font>")
}
//树收拢时调用的函数//当父节点关闭,其所有的子节点也都闭合
function closeFolders(foldersNode)
{
var i=0 if (!foldersNode[2])
{
for (i=4; i< foldersNode.length; i++)
closeFolders(foldersNode[i]) }
foldersNode[0] = 0
foldersNode[1] = 0
}//收拢节点
function clickOnFolderRec(foldersNode, folderName)
{
var i=0 if (foldersNode[3] == folderName)
{
if (foldersNode[0])
closeFolders(foldersNode)
else
{
foldersNode[0] = 1
foldersNode[1] = 1
}
}
else
{
if (!foldersNode[2])
for (i=4; i< foldersNode.length; i++)
clickOnFolderRec(foldersNode[i], folderName)
}
}
//打开分支
function openBranch(branchName)
{
clickOnFolderRec(foldersTree, branchName)
if (branchName=="Start folder" && foldersTree[0]==0)
top.folderFrame.location="basefolder.htm"
timeOutId = setTimeout("redrawTree()",100)
}//页面载入时的初始化
function initializeTree()
{
generateTree()
redrawTree()
}
var foldersTree = 0
var timeOutId = 0-->
</script>