使用DW用ASP+ACCESS编写目录树

　　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
%>

　　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

<!--#include file="initialize.asp"-->
<script language=jscript>
<!--
file://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";
}
}
}
file://-->
</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>&nbsp;</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>&nbsp;</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") & ")"&uot;>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>&nbsp;</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
%>
 

　　下面这是调用页代码，保存成index.asp

<%@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) { file://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);
file://-->
</script>
<script language="JScript">
<!--

file://此函数设置处理表单的内容
file://比如添加时，表单为空，并显示为什么节点添加子节点
file://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) { file://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) { file://v4.01
file://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; file://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&quo;) 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); file://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;
}
file://-->
</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">&nbsp;</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">&nbsp;</td>
<td width="40"> <input name="cancelBut" type="button" class="DivBut" id="cancelBut" onclick="jscript:addNodeDiv.style.display=''none'';" value="取消">
</td>
<td>&nbsp;</td>
</tr>
</table></td>
<td>&nbsp;</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。