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ASP隐藏真实文件的下载性可以实现代码

发布时间:2023-07-14 13:11:28 所属栏目:Asp教程 来源:
导读:格式:Download.asp?FileName=要下载的文件名代码如下:Dim StreamDim ContentsDim FileNameDim FileExtConst adTypeBinary = 1FileName = Request.QueryString("FileName")if FileName = "" ThenResponse.Write "无效

格式:Download.asp?FileName=要下载的文件名

代码如下:

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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