ASP隱藏真實檔案的下載功能實現代碼_應用技巧

格式：Download.asp?FileName=要下載的檔案名稱

複製代碼 代碼如下:

Dim Stream
Dim Contents
Dim FileName
Dim FileExt
Const adTypeBinary = 1
FileName = Request.QueryString("FileName")
if FileName = "" Then
Response.Write "無效檔案名稱."
Response.End
End if
' 下面是不希望下載的檔案
FileExt = Mid(FileName, InStrRev(FileName, ".") + 1)
Select Case UCase(FileExt)
Case "ASP", "ASA", "ASPX", "ASAX", "MDB"
Response.Write "受保護檔案,不能下載."
Response.End
End Select
' 下載這個檔案
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