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Posted to users@tomcat.apache.org by Jonathan Mast <jh...@gmail.com> on 2008/11/19 02:25:00 UTC
How do i specify the filename for a binary file generated by a JSP?
I am writing a report generator that has the ability to generate Excel
files. The user clicks on a link (exporter.jsp), the page's content-type
has been set to "application/vnd.ms-excel" which naturally prompts the user
to either save to a file or open directly in Excel.
It works fine, but requires the user to manually rename the generated file
from "exporter.jsp" to "whatever.xls". Furthermore, Firefox will not let
you rename the file in save dialog box, it just automatically saves the file
as "exporter.jsp", you must rename it from the file browser.
How do specify the output file name from within JSP?
Btw, right clicking and selecting "save link as" allows for specifying the
file name, but the file that is created is empty.
Thanks
Re: How do i specify the filename for a binary file generated by a JSP?
Posted by Hassan Schroeder <ha...@gmail.com>.
On Tue, Nov 18, 2008 at 5:25 PM, Jonathan Mast
<jh...@gmail.com> wrote:
> How do specify the output file name from within JSP?
Something like:
response.setHeader("Content-disposition", "attachment; filename=" +
encodedFileName);
:: will prompt the user to `Save as` with the specified file name.
HTH,
--
Hassan Schroeder ------------------------ hassan.schroeder@gmail.com
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Re: How do i specify the filename for a binary file generated by
a JSP?
Posted by Christopher Schultz <ch...@christopherschultz.net>.
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Jonathan,
Jonathan Mast wrote:
> I am writing a report generator that has the ability to generate Excel
> files.
This question has already been answered by Youssef, Hassan, and Bill.
I'm going to add a few things that I think are worth mentioning.
There was a magazine at one time called JavaPro that seems to have been
wiped off the face of the planet. I have in front of me a printed
article called "Send Files to Browser Clients the /Right Way/" which
answers your question in a 2-page writeup.
The basics are:
1. Use Content-Disposition (as suggested by other responses)
2. Set the Content-Type to application/octet-stream
(This may force a download for browsers such as MSIE that
would rather show you the content than download it)
3. Make sure you don't send more content than is appropriate.
Since you're using a JSP, watch out for excess newlines and
stuff like that you might get with sloppy JSP syntax.
Sweet. The Way Back Machine comes to the rescue:
http://web.archive.org/web/20020604100834/http://www.fawcette.com/javapro/2002_03/online/online_eprods/servlets_03_08/
Enjoy. It's a really old article, but it is actually still correct
(which just isn't true for most of what has been published about Java -
aside from the basics - since it was introduced).
- -chris
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Re: How do i specify the filename for a binary file generated by a JSP?
Posted by Youssef Mohammed <yo...@gmail.com>.
doesn't seem like a tomcat issue. you'd better ask in java/jsp groups.
As a quick hint might use servlet in front of the jsp and whatever name you
wana.
Regards, Youssef
On Wed, Nov 19, 2008 at 3:25 AM, Jonathan Mast
<jh...@gmail.com>wrote:
> I am writing a report generator that has the ability to generate Excel
> files. The user clicks on a link (exporter.jsp), the page's content-type
> has been set to "application/vnd.ms-excel" which naturally prompts the user
> to either save to a file or open directly in Excel.
>
> It works fine, but requires the user to manually rename the generated file
> from "exporter.jsp" to "whatever.xls". Furthermore, Firefox will not let
> you rename the file in save dialog box, it just automatically saves the
> file
> as "exporter.jsp", you must rename it from the file browser.
>
> How do specify the output file name from within JSP?
>
> Btw, right clicking and selecting "save link as" allows for specifying the
> file name, but the file that is created is empty.
>
> Thanks
>
Re: How do i specify the filename for a binary file generated by a JSP?
Posted by Bill Barker <wb...@wilshire.com>.
You need to do something like:
<%
response.setHeader("Content-Disposition"," attachment;
filename="+"whatever.xls");
%>
"Jonathan Mast" <jh...@gmail.com> wrote in message
news:f5af14000811181725m44d1b005mecf4574c875fc9e0@mail.gmail.com...
>I am writing a report generator that has the ability to generate Excel
> files. The user clicks on a link (exporter.jsp), the page's content-type
> has been set to "application/vnd.ms-excel" which naturally prompts the
> user
> to either save to a file or open directly in Excel.
>
> It works fine, but requires the user to manually rename the generated file
> from "exporter.jsp" to "whatever.xls". Furthermore, Firefox will not let
> you rename the file in save dialog box, it just automatically saves the
> file
> as "exporter.jsp", you must rename it from the file browser.
>
> How do specify the output file name from within JSP?
>
> Btw, right clicking and selecting "save link as" allows for specifying the
> file name, but the file that is created is empty.
>
> Thanks
>
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