ASP隐藏真实文件的下载功能实现代码

答案：格式：Download.asp?FileName=要下载的文件名 
[复制此代码]CODE:

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 
Response.Clear 
Response.ContentType = "application/octet-stream" 
Response.AddHeader "content-disposition", "attachment; filename=" & FileName 
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 

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