利用ACCESS创建数据库listBase.mdb:
数据表：listTable
数据字段：listId listName listInfo parentId
连接方法：
<%
dim sConn,sConnStr,sSql
sConnStr=DRIVER={Microsoft Access Driver (*.mdb)};dbq= & server.mappath(listBase.mdb)
set sConn=server.createobject(adodb.connection)
sConn.open sConnStr
%>
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把以上代码保存成文件：initialize.asp
下面这段程序代码是用来显示目录树用的，保存成文件：inc.asp
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<!--#include file=initialize.asp-->
<script language=jscript>
<!--
//此函数用来显示与关闭它的子菜单的，并切换其前面的小图片
function showMenu(menuObj,isSub){
if(menuObj.style.display==none){
menuObj.style.display=;
if(isSub==1){
event.srcElement.src=images/open.gif;
}
}
else{
menuObj.style.display=none;
if(isSub==1){
event.srcElement.src=images/close.gif;
}
}
}
//-->
</script>
<!--下面这段蓝色的区域，是设置目录树的根，其中的内容非数据内的数据，数据库内的数据都附着在它的下面//-->
<%
response.write(<table width='100%' border='0' cellspacing='0' cellpadding='0'> & chr(13))
response.write(<tr> & chr(13)&<td> & chr(13) & <table width='100%' border='0' cellspacing='0' cellpadding='0'>)
response.write(<tr> & chr(13) & <td width='18' ><img src='images/root.gif' onclick='jscript:showMenu(subMenu0,0)' style='cursor:hand' alt='不可修改'></td> & chr(13) & <td width='100' class='menuPro' id='listName0'>根节点</td> & chr(13))
response.write(<td width='40' class='menuFont' align='center' style='cursor:hand' onclick=jscript:showForm('add',0)>添加</td> & chr(13))
response.write(<td width='40' class='menuFont' align='center' onclick=''></td> & chr(13))
response.write(<td> </td></tr></table></td></tr> & chr(13))
response.write(<tr id='subMenu0'> & chr(13) & <td colspan='2'> & chr(13))
'此处调用显示目录树的递归函数
listChild(0)
response.write(</td> & chr(13) & </tr> & chr(13) & </table> & chr(13))
'下面代码为显示目录树最关键的函数，使用了递归方法（很多象这样类型的都是用递归来做的。）
function listChild(id)
dim sRec,sSql,sNum,sTmp
set sRec=server.createobject(adodb.recordset)
sSql=select listId,listName,listInfo,parentId from listTable where parentId= & id
sRec.open sSql,sConn,3,1
if not sRec.eof then
sNum=1
response.write(<table width='100%' border='0' cellspacing='0' cellpadding='0'> & chr(13))
while not sRec.eof
sTmp=sConn.execute(select count(listId) as countSub from listTable where parentId= & sRec(listId))
if sTmp(countSub)>0 then
response.write(<tr> & chr(13))
if sNum=sRec.recordcount then
response.write(<td width='18' valign='top'><img src='images/angel.gif'></td> & chr(13))
else
response.write(<td width='18' background='images/eline.gif' valign='top'><img src='images/t.gif' ></td> & chr(13))
end if
response.write(<td> & chr(13) & <table width='100%' border='0' cellspacing='0' cellpadding='0'> & chr(13))
response.write(<tr> & chr(13) & <td width='118' class='menuPro' id='listName & sRec(listId) & '><img id='img & sRec(listId) & ' style='cursor:hand' src='images/close.gif' align='absMiddle' onclick='jscript:showMenu(subMenu & sRec(listId) & ,1)' alt=' & sRec(listInfo) & '> & server.HTMLEncode(sRec(listName)) & </td> & chr(13) & <td width='40' class='menuFont'><div align='center' style='cursor:hand' onclick=jscript:showForm('add', & sRec(listId) & )>添加</div></td><td width='40' class='menuFont'><div align='center' style='cursor:hand' onclick=jscript:showForm('edit', & sRec(listId) & )>编辑</div></td> & chr(13))
response.write(<td width='40' class='menuFont'><div align='center' style='cursor:hand' onclick=jscript:window.location='disp.asp?disp=del&parentId= & sRec(listId) & '>删除 </div></td> & chr(13) & <td> </td> & chr(13) & </tr> & chr(13) & </table> & chr(13) & </td> & chr(13) & </tr> & chr(13))
response.write(<tr id='subMenu & sRec(listId) &' style='display:none'>)
if sNum=sRec.recordcount then
response.write(<td width='18' valign='top')
response.write(<img src='images/angel.gif' >)
response.write(</td> & chr(13))
else
response.write(<td width='18' valign='top' background='images/eline.gif'>)
response.write(</td> & chr(13))
end if
response.write(<td> & chr(13))
listChild(sRec(listid))
response.write(</td> & chr(13) & </tr> & chr(13))
else
response.write(<tr> & chr(13))
if sNum=sRec.recordcount then
response.write(<td width='18' valign='top'><img src='images/angel.gif'></td> & chr(13))
else
response.write(<td width='18' background='images/eline.gif' valign='top'><img src='images/t.gif' ></td> & chr(13))
end if
response.write(<td> & chr(13) & <table width='100%' border='0' cellspacing='0' cellpadding='0'> & chr(13))
response.write(<tr> & chr(13) & <td width='118' class='menuPro' id='listName & sRec(listId) & '><img id='img & sRec(listId) & ' src='images/file.gif' align='absMiddle' alt=' & sRec(listInfo) & '> & server.HTMLEncode(sRec(listName)) & </td> & chr(13) & <td width='40' class='menuFont'><div align='center' style='cursor:hand' onclick=jscript:showForm('add', & sRec(listId) & )>添加</div></td><td width='40' class='menuFont'><div align='center' style='cursor:hand' onclick=jscript:showForm('edit', & sRec(listId) & )>编辑</div></td> & chr(13))
response.write(<td width='40' class='menuFont'><div align='center' style='cursor:hand' onclick=jscript:window.location='disp.asp?disp=del&parentId= & sRec(listId) & '>删除</div></td> & chr(13) & <td> </td> & chr(13) & </tr> & chr(13) & </table> & chr(13) & </td> & chr(13) & </tr> & chr(13))
end if
sRec.movenext
sNum=sNum+1
wend
response.write(</table> & chr(13))
end if
sRec.close '关闭记录集
set sRec=nothing '关闭记录集
end function
sConn.close '关闭数据库链接
set sConn=nothing '关闭数据库链接
%>
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下面这是调用页代码，保存成index.asp
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<%@LANGUAGE='VBSCRIPT' CODEPAGE='936'%>
<html>
<head>
<meta http-equiv='Content-Type' content='text/html; charset=gb2312'>
<title>目录树</title>
<script language='javascript' type='text/javascript'>
<!--
function MM_reloadPage(init) { //reloads the window if Nav4 resized
if (init==true) with (navigator) {if ((appName=='Netscape')&&(parseInt(appVersion)==4)) {
document.MM_pgW=innerWidth; document.MM_pgH=innerHeight; onresize=MM_reloadPage; }}
else if (innerWidth!=document.MM_pgW || innerHeight!=document.MM_pgH) location.reload();
}
MM_reloadPage(true);
//-->
</script>
<script language=JScript>
<!--
//此函数设置处理表单的内容
//比如添加时，表单为空，并显示为什么节点添加子节点
//比如修改时，表单内为相应节点的内容，并显示在修改什么节点
function showForm(disp,parentId){
addNodeDiv.style.display=;
document.all.addNodeForm.disp.value=disp;
document.all.addNodeForm.parentId.value=parentId;
if(disp==edit){
document.all.addNodeForm.listInfo.value=eval(img+parentId+.alt);
document.all.addNodeForm.listName.value=eval(listName+parentId+.innerText);
infoValue.innerText=编辑[+eval(listName+parentId+.innerText)+]节点;
}
else{
document.all.addNodeForm.listInfo.value=;
document.all.addNodeForm.listName.value=;
infoValue.innerText=给节点[+eval(listName+parentId+.innerText)+]添加子节点;
}
}
<!--这棕色部分为移动表单代码，可以不要。//-->
function MM_findObj(n, d) { //v4.01
var p,i,x; if(!d) d=document; if((p=n.indexOf(?))>0&&parent.frames.length) {
d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
if(!x && d.getElementById) x=d.getElementById(n); return x;
}
function MM_dragLayer(objName,x,hL,hT,hW,hH,toFront,dropBack,cU,cD,cL,cR,targL,targT,tol,dropJS,et,dragJS) { //v4.01
//Copyright 1998 Macromedia, Inc. All rights reserved.
var i,j,aLayer,retVal,curDrag=null,curLeft,curTop,IE=document.all,NS4=document.layers;
var NS6=(!IE&&document.getElementById), NS=(NS4||NS6); if (!IE && !NS) return false;
retVal = true; if(IE && event) event.returnValue = true;
if (MM_dragLayer.arguments.length > 1) {
curDrag = MM_findObj(objName); if (!curDrag) return false;
if (!document.allLayers) { document.allLayers = new Array();
with (document) if (NS4) { for (i=0; i<layers.length; i++) allLayers[i]=layers[i];
for (i=0; i<allLayers.length; i++) if (allLayers[i].document && allLayers[i].document.layers)
with (allLayers[i].document) for (j=0; j<layers.length; j++) allLayers[allLayers.length]=layers[j];
} else {
if (NS6) { var spns = getElementsByTagName(span); var all = getElementsByTagName(div);
for (i=0;i<spns.length;i++) if (spns[i].style&&spns[i].style.position) allLayers[allLayers.length]=spns[i];}
for (i=0;i<all.length;i++) if (all[i].style&&all[i].style.position) allLayers[allLayers.length]=all[i];
} }
curDrag.MM_dragOk=true; curDrag.MM_targL=targL; curDrag.MM_targT=targT;
curDrag.MM_tol=Math.pow(tol,2); curDrag.MM_hLeft=hL; curDrag.MM_hTop=hT;
curDrag.MM_hWidth=hW; curDrag.MM_hHeight=hH; curDrag.MM_toFront=toFront;
curDrag.MM_dropBack=dropBack; curDrag.MM_dropJS=dropJS;
curDrag.MM_everyTime=et; curDrag.MM_dragJS=dragJS;
curDrag.MM_oldZ = (NS4)?curDrag.zIndex:curDrag.style.zIndex;
curLeft= (NS4)?curDrag.left:(NS6)?parseInt(curDrag.style.left):curDrag.style.pixelLeft;
if (String(curLeft)==NaN) curLeft=0; curDrag.MM_startL = curLeft;
curTop = (NS4)?curDrag.top:(NS6)?parseInt(curDrag.style.top):curDrag.style.pixelTop;
if (String(curTop)==NaN) curTop=0; curDrag.MM_startT = curTop;
curDrag.MM_bL=(cL<0)?null:curLeft-cL; curDrag.MM_bT=(cU<0)?null:curTop-cU;
curDrag.MM_bR=(cR<0)?null:curLeft+cR; curDrag.MM_bB=(cD<0)?null:curTop+cD;
curDrag.MM_LEFTRIGHT=0; curDrag.MM_UPDOWN=0; curDrag.MM_SNAPPED=false; //use in your JS!
document.onmousedown = MM_dragLayer; document.onmouseup = MM_dragLayer;
if (NS) document.captureEvents(Event.MOUSEDOWN|Event.MOUSEUP);
} else {
var theEvent = ((NS)?objName.type:event.type);
if (theEvent == 'mousedown') {
var mouseX = (NS)?objName.pageX : event.clientX + document.body.scrollLeft;
var mouseY = (NS)?objName.pageY : event.clientY + document.body.scrollTop;
var maxDragZ=null; document.MM_maxZ = 0;
for (i=0; i<document.allLayers.length; i++) { aLayer = document.allLayers[i];
var aLayerZ = (NS4)?aLayer.zIndex:parseInt(aLayer.style.zIndex);
if (aLayerZ > document.MM_maxZ) document.MM_maxZ = aLayerZ;
var isVisible = (((NS4)?aLayer.visibility:aLayer.style.visibility).indexOf('hid') == -1);
if (aLayer.MM_dragOk != null && isVisible) with (aLayer) {
var parentL=0; var parentT=0;
if (NS6) { parentLayer = aLayer.parentNode;
while (parentLayer != null && parentLayer.style.position) {
parentL += parseInt(parentLayer.offsetLeft); parentT += parseInt(parentLayer.offsetTop);
parentLayer = parentLayer.parentNode;
} } else if (IE) { parentLayer = aLayer.parentElement;
while (parentLayer != null && parentLayer.style.position) {
parentL += parentLayer.offsetLeft; parentT += parentLayer.offsetTop;
parentLayer = parentLayer.parentElement; } }
var tmpX=mouseX-(((NS4)?pageX:((NS6)?parseInt(style.left):style.pixelLeft)+parentL)+MM_hLeft);
var tmpY=mouseY-(((NS4)?pageY:((NS6)?parseInt(style.top):style.pixelTop) +parentT)+MM_hTop);
if (String(tmpX)==NaN) tmpX=0; if (String(tmpY)==NaN) tmpY=0;
var tmpW = MM_hWidth; if (tmpW <= 0) tmpW += ((NS4)?clip.width :offsetWidth);
var tmpH = MM_hHeight; if (tmpH <= 0) tmpH += ((NS4)?clip.height:offsetHeight);
if ((0 <= tmpX && tmpX < tmpW && 0 <= tmpY && tmpY < tmpH) && (maxDragZ == null
|| maxDragZ <= aLayerZ)) { curDrag = aLayer; maxDragZ = aLayerZ; } } }
if (curDrag) {
document.onmousemove = MM_dragLayer; if (NS4) document.captureEvents(Event.MOUSEMOVE);
curLeft = (NS4)?curDrag.left:(NS6)?parseInt(curDrag.style.left):curDrag.style.pixelLeft;
curTop = (NS4)?curDrag.top:(NS6)?parseInt(curDrag.style.top):curDrag.style.pixelTop;
if (String(curLeft)==NaN) curLeft=0; if (String(curTop)==NaN) curTop=0;
MM_oldX = mouseX - curLeft; MM_oldY = mouseY - curTop;
document.MM_curDrag = curDrag; curDrag.MM_SNAPPED=false;
if(curDrag.MM_toFront) {
eval('curDrag.'+((NS4)?'':'style.')+'zIndex=document.MM_maxZ+1');
if (!curDrag.MM_dropBack) document.MM_maxZ++; }
retVal = false; if(!NS4&&!NS6) event.returnValue = false;
} } else if (theEvent == 'mousemove') {
if (document.MM_curDrag) with (document.MM_curDrag) {
var mouseX = (NS)?objName.pageX : event.clientX + document.body.scrollLeft;
var mouseY = (NS)?objName.pageY : event.clientY + document.body.scrollTop;
newLeft = mouseX-MM_oldX; newTop = mouseY-MM_oldY;
if (MM_bL!=null) newLeft = Math.max(newLeft,MM_bL);
if (MM_bR!=null) newLeft = Math.min(newLeft,MM_bR);
if (MM_bT!=null) newTop = Math.max(newTop ,MM_bT);
if (MM_bB!=null) newTop = Math.min(newTop ,MM_bB);
MM_LEFTRIGHT = newLeft-MM_startL; MM_UPDOWN = newTop-MM_startT;
if (NS4) {left = newLeft; top = newTop;}
else if (NS6){style.left = newLeft; style.top = newTop;}
else {style.pixelLeft = newLeft; style.pixelTop = newTop;}
if (MM_dragJS) eval(MM_dragJS);
retVal = false; if(!NS) event.returnValue = false;
} } else if (theEvent == 'mouseup') {
document.onmousemove = null;
if (NS) document.releaseEvents(Event.MOUSEMOVE);
if (NS) document.captureEvents(Event.MOUSEDOWN); //for mac NS
if (document.MM_curDrag) with (document.MM_curDrag) {
if (typeof MM_targL =='number' && typeof MM_targT == 'number' &&
(Math.pow(MM_targL-((NS4)?left:(NS6)?parseInt(style.left):style.pixelLeft),2)+
Math.pow(MM_targT-((NS4)?top:(NS6)?parseInt(style.top):style.pixelTop),2))<=MM_tol) {
if (NS4) {left = MM_targL; top = MM_targT;}
else if (NS6) {style.left = MM_targL; style.top = MM_targT;}
else {style.pixelLeft = MM_targL; style.pixelTop = MM_targT;}
MM_SNAPPED = true; MM_LEFTRIGHT = MM_startL-MM_targL; MM_UPDOWN = MM_startT-MM_targT; }
if (MM_everyTime || MM_SNAPPED) eval(MM_dropJS);
if(MM_dropBack) {if (NS4) zIndex = MM_oldZ; else style.zIndex = MM_oldZ;}
retVal = false; if(!NS) event.returnValue = false; }
document.MM_curDrag = null;
}
if (NS) document.routeEvent(objName);
} return retVal;
}
//-->
</script>
<link href='css/css.css' rel='stylesheet' type='text/css'>
</head>
<body bgcolor=#4A8CCE leftmargin=0 topmargin=0 marginwidth=0 marginheight=0>
<div id=addNodeDiv style=position:absolute; left:400; top:300; width:300; height:135; z-index:1;display:none; class=formDiv onMouseDown=MM_dragLayer('addNodeDiv','',1,1,300,30,true,false,-1,-1,-1,-1,false,false,0,'',false,'')>
<form action=disp.asp method=get name=addNodeForm id=addNodeForm>
<table width=300 border=0 cellspacing=0 cellpadding=3>
<tr style=cursor:hand>
<td>
<table width=100% border=0 cellspacing=0 cellpadding=0>
<tr>
<td><div id=infoValue class=menuFont></div></td>
<td><div align=right>
<input name=parentId type=hidden id=parentId>
<input name=disp type=hidden id=disp>
<img src=images/close2.gif alt=点击关闭 width=13 height=13 style=cursor:hand onclick=jscript:addNodeDiv.style.display='none';></div></td>
</tr>
</table>
</td>
</tr>
<tr>
<td>
<table width=100% border=0 cellpadding=0 cellspacing=0>
<tr>
<td width=70 class=menuFont>
<div align=right>节点名称：</div></td>
<td width=120><input name=listName type=text class=text1 id=listName></td>
<td class=menuFont>10个字符BR> </tr>
<tr>
<td width=70>
<div align=right class=menuFont>节点说明：</div></td>
<td><textarea name=listInfo cols=19 rows=3 class=text1 id=listInfo></textarea></td>
<td class=menuFont>50个字符</td>
</tr>
<tr>
<td colspan=2><table width=100% border=0 cellspacing=0 cellpadding=5>
<tr>
<td width=80> </td>
<td width=40> <input name=SubmitBut type=submit class=DivBut id=SubmitBut value=提交 onclick=jscript:addNodeForm.submit();this.disabled='disabled'>
</td>
<td width=10> </td>
<td width=40> <input name=cancelBut type=button class=DivBut id=cancelBut onclick=jscript:addNodeDiv.style.display='none'; value=取消>
</td>
<td> </td>
</tr>
</table></td>
<td> </td>
</tr>
</table>
</td>
</tr>
</table>
</form>
</div>
<table width=100% height=100% border=0 cellpadding=0 cellspacing=0>
<tr>
<td>
<!--此处为包含文件//-->
<div id=Layer1 class=treeDiv>
<!--#include file=inc.asp-->
</div>
</td>
</tr>
</table>
</body>
</html> |
下面是提交信息处理页的代码，保存为disp.asp
<!--#include file=initialize.asp-->
<%
function checkstr(str)
str=replace(str,','',1,-1,1)
checkstr=str
end function
dim disp,parentId,listName,listInfo
disp=request.QueryString(disp)
parentId=request.QueryString(parentId)
select case disp
case add
listName=checkstr(left(request.QueryString(listName),10))
listInfo=checkstr(left(request.QueryString(listInfo),50))
if listName= then listName=空白节点
if listInfo= then ListInfo=此节点在添加入未填写内容
sSql=insert into listTable (listName,listInfo,parentId) values(' & listName & ',' & listInfo & ', & parentId & )
case edit
listName=checkstr(left(request.QueryString(listName),10))
listInfo=checkstr(left(request.QueryString(listInfo),50))
if listName= then listName=空白节点
if listInfo= then listInfo=此节点在添加入未填写内容
sSql=update listTable set listName=' & listName & ',listInfo=' & listInfo & ' where listId= & parentId
case del
sSql=delete from listTable where listId= & parentId & or parentId= & parentId
end select
sConn.execute sSql,,1
response.redirect(index.asp)
%> |
以上代码保存成的文件放在同一目录下面（在这里我们称为根目录）。
在根目录下新建一个CSS目录.
下面为CSS定义，保存成css.css文件，放在CSS目录下。注：有一两个样式是不要的，我没删
.menuPro {
border-top: 1px dotted #A5BBE0;
border-right: 1px dotted #31548E;
border-bottom: 1px dotted #31548E;
border-left: 1px dotted #A5BBE0;
overflow: visible;
font-family: Verdana, Arial, Helvetica, sans-serif;
font-size: 12px;
}
.menuGro {
border-top: 2px outset #31548E;
border-right: 2px outset #A5BBE0;
border-bottom: 2px outset #A5BBE0;
border-left: 2px outset #31548E;
overflow: visible;
font-family: Verdana, Arial, Helvetica, sans-serif;
font-size: 12px;
}
.menuFont {
font-family: Verdana, Arial, Helvetica, sans-serif;
font-size: 12px;
}
.showDiv {
display:'';
}
.hiddenDiv {
display:none;
}
.treeDiv {
background-color: #A8D5EA;
height: 100%;
width: 100%;
border-top-width: 2px;
border-right-width: 2px;
border-bottom-width: 2px;
border-left-width: 2px;
border-top-style: inset;
border-right-style: inset;
border-bottom-style: inset;
border-left-style: inset;
border-top-color: #3680C9;
border-right-color: #BCD5ED;
border-bottom-color: #BCD5ED;
border-left-color: #3680C9;
overflow: auto;
padding: 20px;
}
body {
overflow: hidden;
}
.formDiv {
font-family: Verdana, Arial, Helvetica, sans-serif;
font-size: 12px;
font-weight: normal;
background-color: #7ABDDE;
height: 200px;
width: 300px;
border-top: 1px outset #B9DCFF;
border-right: 1px outset #004488;
border-bottom: 1px outset #004488;
border-left: 1px outset #B9DCFF;
overflow: hidden;
}
.text1 {
width: 160px;
}
.DivBut {
font-family: Verdana, Arial, Helvetica, sans-serif;
font-size: 12px;
font-weight: normal;
background-color: #3399CC;
height: 20px;
width: 40px;
border: 1px outset;
}
另在根目录下建一个IMAGES目录。用来放那些文件夹样子的小图。
打包下载[请使用WINRAR3.0解压]：小图片 |
