文件下载不能下JPG吗

d.asp
<%
Dim Stream
Dim Contents
Dim FileName
Dim FileExt
Const adTypeBinary = 1
FileName=Request.QueryString("FileName")
if FileName = "" Then
Response.Write "无效文件名."
Response.End
End if
' 下面是不希望下载的文件
FileExt = Mid(FileName, InStrRev(FileName, ".") + 1)
Select Case UCase(FileExt)
Case "ASP", "ASA", "ASPX", "ASAX", "MDB"
Response.Write "受保护文件,不能下载."
Response.End
End Select
' 下载这个文件

name=Mid(FileName, InStrRev(FileName, "/")+1)

Response.Clear
Response.ContentType = "application/octet-stream"
Response.AddHeader "content-disposition", "attachment; filename="&name
Set Stream = server.CreateObject("ADODB.Stream")
Stream.Type = adTypeBinary
Stream.Open
Stream.LoadFromFile Server.MapPath(FileName)
While Not Stream.EOS
Response.BinaryWrite Stream.Read(1024 * 64)
Wend
Stream.Close
Set Stream = Nothing
Response.Flush
Response.End
%>

引用
<a href="d.asp?filename=1.JPG">1.JPG</a> 这个出错

<a href="d.asp?filename=1.txt">1.txt</a>  这个可以,,二个文件确定存在


高手指点一二

[[it] 本帖最后由 dope2008 于 2008-8-3 12:13 编辑 [/it]]