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不直接打开而是另存为

20 3 月, 2007 at 下午10:20 · Filed under 爱踢

ASP程序中，有一些附件并不希望用已知程序直接打开，而是想点击时弹出下载提示。

我用了下面的代码：

<%
call downloadFile(Request("path"))

function downloadFile(strFile)
strFilename = server.MapPath(strFile)
Response.Buffer = True
Response.Clear
Set s = Server.CreateObject(“ADODB.Stream”)
s.Open
s.Type = 1
on error resume next
Set fso = Server.CreateObject(“Scripting.FileSystemObject”)
if not fso.FileExists(strFilename) then
Response.Write(“<h1>Error:</h1>” & strFilename & ” does not exist<p>”)
Response.End
end if
Set f = fso.GetFile(strFilename)
intFilelength = f.size
s.LoadFromFile(strFilename)
if err then
Response.Write(“<h1>Error: </h1>” & err.Description & “<p>”)
Response.End
end if
Response.AddHeader “Content-Disposition”, “attachment; filename=” & f.name
Response.AddHeader “Content-Length”, intFilelength
Response.CharSet = “UTF-8”
Response.ContentType = “application/octet-stream”
Response.BinaryWrite s.Read
Response.Flush
s.Close
Set s = Nothing
End Function
%>

将上面的代码另存为down.asp放在要附件的目录下面（比如UpLoadFile/），然后引用：

<a href=”UpLoadFile/down.asp?path=<%=rs(“path”)%>”>点击下载</a>

UPDATE @ 2007.03.29：先道歉，上面的代码有一些问题，别人可以下载你的任何文件！fisker给出的补丁是在

function downloadFile(strFile)

后面加上

if left(strFile,1)="/" or left(strFile,1)="\" or left(strFile,2)=".." then response.end

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