web文件管理器的后续开发。。。

今天看了一下ccopus的DM45，做的很不错，在这之前我也想做一个了，做一个跟windows资源管理器非常类似的程序。看到dm45以后觉得自己还是放弃吧，WEB方式的文件管理无论如何都是在权限允许内操作，而且大家实现的也都差不多，无非是在外观上，易操作上做文章，文件管理本来作用也不是很大，如果是多用户的权限比较难控制，既然别人做了，我想还是不要重复劳动的好，况且也不见得能做的好。下面的代码贴出来留个纪念，实现了文件的本地排序。但目录之间的层次还没有搞好。有兴趣的可以拿去参考，理论上应该可以实现跟windows资源管理器极类似的界面和操作方式。整个界面都采取无刷新方式。用XMLHTTP来执行后台代码，用JS来修改前台显示。这里体现了一种思想，希望对初学者能有个帮助。
代码如下：
<title>WEB文件管理器2.0版 http://asp2004.net<;/title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<style type="text/css">

</style>
<%

''版权声明：本代码仅供学习研究之用，本人不对因使用本程序而造成的任何后果负责。未经作者书面许可不得用于商业用途。
''QQ：103895
''email:quxiaohui_0@163.com
''http://asp2004.net

Server.scriptTimeout = 999
action = Request("action")
temp = Split(Request.ServerVariables("URL"), "/")
url = temp(UBound(temp))

Const pass = ""''登陆密码

''登陆验证

Set fso = CreateObject("scripting.FileSystemObject")
Path = Request("foldername")
If Path = "" Then Path = server.MapPath("./")
ShowFolderList(Path)
Set fso = Nothing

''列出文件和文件夹

Function ShowFolderList(folderspec)
temp = Request.ServerVariables("HTTP_REFERER")
temp = Left(temp, Instrrev(temp, "/"))
temp1 = Len(folderspec) - Len(server.MapPath("./")) -1
If temp1>0 Then
temp1 = Right(folderspec, CInt(temp1)) + "\"
ElseIf temp1 = -1 Then
temp1 = ""
End If
tempurl = temp + Replace(temp1, "\", "/")
uppath = "./" + Replace(temp1, "\", "/")
upfolderspec = fso.GetParentFolderName(folderspec&"\")
Set f = fso.GetFolder(folderspec)
%>
<script language="javascript">
function File(Name, Size, Type, DateCreated, DateLastAccessed, DateLastModified, Attributes)
{
this.Name = Name;
this.Size = Size;
this.Type = Type;
this.DateCreated = DateCreated;
this.DateLastAccessed = DateLastAccessed;
this.DateLastModified = DateLastModified;
this.Attributes = Attributes;
}

function Tree(id, name)
{
this.id = id;
this.name = name;
this.root = new Array();
this.length = 0;

this.Add = function(file)
{
this.root.push(file);
this.length += 1;
}
this.max = function(f1, f2, field)
{
switch( field )
{
case "Name":
return f1.Name.toLowerCase()>f2.Name.toLowerCase()? true:false;
case "Size":
return f1.Size>f2.Size? true:false;
case "Type":
//if (field == ''???t?D'') return false;
return f1.Type>f2.Type? true:false;
case "DateCreated":
return f1.DateCreated>f2.DateCreated? true:false;
case "DateLastAccessed":
return f1.DateLastAccessed>f2.DateLastAccessed? true:false;
case "DateLastModified":
return f1.DateLastModified>f2.DateLastModified? true:false;
case "Attributes":
return f1.Attributes>f2.Attributes? true:false;
default:
return false;
}
}
this.sort=function(field, order)
{
//order:desc asc
//field:Name Size
var len = this.root.length;
if( len < 2 ) return;
var tmp;
for(var i=0; i<len-1; i++)
{
for(var j=i+1; j<len; j++)
{
if( order == "desc")
{
if( !this.max( this.root[i], this.root[j], field ) )
{
tmp = this.root[i];
this.root[i] = this.root[j];
this.root[j] = tmp;
}
}
else if ( order == "asc")
{
if( this.max( this.root[i], this.root[j], field ) )
{
tmp = this.root[i];
this.root[i] = this.root[j];
this.root[j] = tmp;
}
}
}
}
}
}
function fieldcode(field)
{
if (order == ''desc'')
{
order = ''asc'';
}
else
{
order = ''desc'';
}
tree.sort(field, order);
}
function show()
{
//for (var i=0;i<form1.elements.length;i++){var e = form1.elements[i];if (e.type == "checkbox")e.checked = form1.chkall.checked;}
str = ''<table width="100%" border="0" cellspacing="0" cellpadding="0">\
<tr bgcolor="#EEEEEE">\
<td><div align="center">操作<input type="checkbox" name="chkall" onclick=""></div></td>\
<td><div align="center"><a onclick="fieldcode(\''Name\'');show();" href=#>文件名</a></div></td>\
<td><div align="center"><a onclick="fieldcode(\''Size\'');show();" href=#>大小</a></div></td>\
<td><div align="center"><a onclick="fieldcode(\''Type\'');show();" href=#>类型</a></div></td>\
<td><div align="center"><a onclick="fieldcode(\''DateCreated\'');show();" href=#>创建时间</a></div></td>\
<td><div align="center"><a onclick="fieldcode(\''DateLastAccessed\'');show();" href=#>上次访问时间</a></div></td>\
<td><div align="center"><a onclick="fieldcode(\''DateLastModified\'');show();" href=#>上次修改时间</a></div></td>\
<td><div align="center"><a onclick="fieldcode(\''Attributes\'');show();" href=#>属性</a></div></td>\
</tr>'';
var f;
for(i=0;i<tree.length;i++)
{
f = tree.root[i];
str += ''<tr bgcolor="#EEEEEE" onmouseover=this.bgColor=\''#F3F6FA\''; onmouseout=this.bgColor=\''#EEEEEE\'';>\
<td><center><input type="checkbox" name="f" value="''+tree.id+"\\\\"+f.Name+''"></center></td>\
<td><a href="''+f.url+''">''+f.Name+''</a></td>\
<td>''+f.Size+''</td>\
<td>''+f.Type+''</td>\
<td>''+f.DateCreated+''</td>\
<td>''+f.DateLastAccessed+''</td>\
<td>''+f.DateLastModified+''</td>\
<td>''+f.Attributes+''</td>\
</tr>'';
}
str += ''</table>'';
eval(list).innerHTML = str;
}
var field = ''Name'';
var order = ''desc'';
var str;
</script>
<body onLoad="show()">
<form name="form1" method=post action="">
<span id="list"></span>
</form>
</body>
<%

Response.Write("<script language=javascript>"&vbcrlf)
Response.Write("var tree = new Tree(''"&jscode(f.path)&"'',''"&jscode(f.name)&"'');"&vbcrlf)
Set fc = f.SubFolders
For Each f1 in fc
Response.Write("tree.Add(new File(''"&f1.name&"'',"&f1.size&",''"&f1.Type&"'',''"&f1.DateCreated&"'',''"&f1.DateLastAccessed&"'',''"&f1.DateLastModified&"'',''"&f1.Attributes&"''));"&vbcrlf)
Next
set fc = f.Files
For Each f1 in Fc
Response.Write("tree.Add(new File(''"&f1.name&"'',"&f1.size&",''"&f1.Type&"'',''"&f1.DateCreated&"'',''"&f1.DateLastAccessed&"'',''"&f1.DateLastModified&"'',''"&f1.Attributes&"''));"&vbcrlf)
Next
Response.Write("</script>")
End Function

function jscode(s)
jscode = replace(s,"\","\\\\")
end function

%>

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