Download a file using Javascript
Question
There's this Excel file I want users to be able to download from my server. There must be an easy way to initiate the download of the file after a click on the "Download" button... but I have no clue how to make that happen.
I have this so far: (VBscript and ASP)
<head>
<script type="text/javascript" src="overzicht.js"></script>
</head>
Set fs=Server.CreateObject("Scripting.FileSystemObject")
if (fs.FileExists("c:\file.xls"))=true then 'fake filename D:
response.write("<input type='button' value='Download Masterfile' class='button' onclick='exportmasterfile();' /><br />")
else
response.write("Masterfile not found. <br />")
end if
set fs=nothing
The javascript function is empty.
4 answers
solution1
21 2008-12-08 10:37:47
Actually, if you want a 'more-efficient' (and sexier) way, use:
location.href = your_url;
That way, you will save the compiler some time in going up to the location 's prototype chain up to the window object.
solution2
19 ACCPTED 2008-12-08 10:19:25
you're not going to believe this. Found it...
function exportmasterfile()
{ var url='../documenten/Master-File.xls';
window.open(url,'Download');
}
Sorry guys!
solution3
5 2008-12-08 10:21:37
如果您的服务器配置为触发下载该mime类型的文件，那么就像这样简单：
window.location = your_url
solution4
1 2012-01-24 02:58:18
Here's a VBScript function to download a binary file.
Function SaveUrlToFile(url, path)
Dim xmlhttp, stream, fso
' Request the file from the internet.
Set xmlhttp = CreateObject("MSXML2.XMLHTTP")
xmlhttp.open "GET", url, false
xmlhttp.send
If xmlhttp.status <> 200 Then
SaveUrlToFile = false
Exit Function
End If
' Download the file into memory.
Set stream = CreateObject("ADODB.Stream")
stream.Open
stream.Type = 1 ' adTypeBinary
stream.Write xmlhttp.responseBody
stream.Position = 0 ' rewind stream
' Save from memory to physical file.
Set fso = Createobject("Scripting.FileSystemObject")
If fso.Fileexists(path) Then
fso.DeleteFile path
End If
stream.SaveToFile path
SaveUrlToFile = true
End Function
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