ASP单击链接直接下载文件的代码
在ie中点开图片或文档的链接里，IE会自动打开它,有时候这种功能并不是我们所需的,虽然我们可以提醒用户用鼠标右键-->"目标另存为...."命令来下载文档或图片,但这样毕竟不太方便,本文描述了利用FSO及Stream方法实现IE直接下载文档.<%@language=vbscript codepage=65001%>
<%
'Filename must be input
if Request("Filename")="" then
response.write"<h1>Error:</h1>Filename is empty!<p>"
else
call downloadFile(replace(replace(Request("Filename"),"",""),"/",""))
Function downloadFile(strFile)
' make sure you are on the latest MDAC version for this to work
' get full path of specified file
strFilename=server.MapPath(strFile)
' clear the buffer
Response.Buffer=True
Response.Clear
' create stream
Set s=Server.CreateObject("ADODB.Stream")
s.Open
' Set as binary
s.Type=1
' load in the file
on error resume next
' check the file exists
Set fso=Server.CreateObject("Scripting.FileSystemObject")
if not fso.FileExists(strFilename)then
Response.Write("<h1>Error:</h1>"&strFilename&" does not exists!<p>")
Response.End
end if
' get length of file
Set f=fso.GetFile(strFilename)
intFilelength=f.size
s.LoadFromFile(strFilename)
if err then
Response.Write("<h1>Error:</h1>Unknown Error!<p>")
Response.End
end if
' send the headers to the users Browse
Response.AddHeader"Content-Disposition","attachment;filename="&f.name
Response.AddHeader"Content-Length",intFilelength
Response.CharSet="UTF-8"
Response.ContentType="application/octet-stream"
' output the file to the browser
Response.BinaryWrite s.Read
Response.Flush
' tidy up
s.Close
Set s=Nothing
End Function
end if
%>
<%@language=vbscript codepage=65001%>
<%
'Filename must be input
if Request("Filename")="" then
response.write"<h1>Error:</h1>Filename is empty!<p>"
else
call downloadFile(replace(replace(Request("Filename"),"",""),"/",""))
Function downloadFile(strFile)
' make sure you are on the latest MDAC version for this to work
' get full path of specified file
strFilename=server.MapPath(strFile)
' clear the buffer
Response.Buffer=True
Response.Clear
' create stream
Set s=Server.CreateObject("ADODB.Stream")
s.Open
' Set as binary
s.Type=1
' load in the file
on error resume next
' check the file exists
Set fso=Server.CreateObject("Scripting.FileSystemObject")
if not fso.FileExists(strFilename)then
Response.Write("<h1>Error:</h1>"&strFilename&" does not exists!<p>")
Response.End
end if
' get length of file
Set f=fso.GetFile(strFilename)
intFilelength=f.size
s.LoadFromFile(strFilename)
if err then
Response.Write("<h1>Error:</h1>Unknown Error!<p>")
Response.End
end if
' send the headers to the users Browse
Response.AddHeader"Content-Disposition","attachment;filename="&f.name
Response.AddHeader"Content-Length",intFilelength
Response.CharSet="UTF-8"
Response.ContentType="application/octet-stream"
' output the file to the browser
Response.BinaryWrite s.Read
Response.Flush
' tidy up
s.Close
Set s=Nothing
End Function
end if
%>