Re: How to force a file download to save

Another way is to set Content-Disposition header to "octect-stream". Here is an example in JSP that reads a file and sends it to the client:


<%
//The server will tweak the HTTP contentType header
response.setContentType("APPLICATION/OCTET-STREAM"); 

String save_file_as = "clientfilename.csv"; //the user will see this filename to save as
response.setHeader("Content-Disposition","attachment; filename=\""+save_file_as+"\""); 

//open file to download and read byte per byte until EOF and close.
fileInputStream = new java.io.FileInputStream(file2download);
int i;while ((i=fileInputStream.read()) != -1){
        out.write(i); }
fileInputStream.close();
out.close();
%>

Hope it helps, 

Jose Luis Leviaguirre





-----Mensaje original-----
De: Jean-Christophe CHARVY [mailto:[email protected]]
Enviado el: Lunes, 26 de Mayo de 2003 09:43 a.m.
Para: [email protected]
Asunto: RE: How to force a file download to save



Hi,

If you manage download through servlets, you can specify which behaviour the client browser has to follow.

To force the file download to save, use :

response.addHeader("Content-Disposition", "attachment; filename=" + filename);


JC
http://jc.charvy.free.fr/



---------- Entête Initiale  -----------

De    : "A mailing list for discussion about Sun Microsystem's Java               Servlet API Technology." <[email protected]>
A     : [email protected]
Copie : 
Date  : Wed, 21 May 2003 10:47:47 -0400
Objet : How to force a file download to save

> Group,
>         can someone tell me what the options are for forcing a file
> download to pop up a save dialogue. 
> 
> What I want to do is force the save dialogue to open for any of the
> files available from a particular site for download, including our xml,
> txt and csv files.
> 
> As far as I know, I can either:
> 1. Change my server mimetypes so that it defaults to sending my file
> with a content type of e.g. "bad/type"
> 2. Manually alter the response object to set the content type to e.g.
> "bad/type".
> 
> Are there any other ways that I can do this? 
> Cheers,
>         Neil.
> 
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> 
------------------------------------------

Faites un voeu et puis Voila ! www.voila.fr 


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