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From "Bailey, David" <>
Subject RE: Velocity View Servlet - how to serve page w/o HTTP header
Date Thu, 04 Dec 2008 23:11:19 GMT
Yeah, my apologies.  HTTP headers and so forth have nothing to do with
my problem.

For some reason, when I load static content (filename.xls) from my web
server, my browser recognizes it as a special file and prompts me to
save/open with associated application.

When I register *.xls as a file I want the Velocity View Servlet to
process, for some reason the browser simply displays the file content,
rather than prompting me.

I had surmised that this was happening because VVS was throwing HTML
tags around things, but I see now that my browser was doing it (I would
save the displayed content to my desktop, and the browser very nicely
saved the .xls file with HTML formatting).

So my earlier statement about HTTP headers was totally off the mark.
Does anyone have any clue why my browser is treating content dynamically
generated by VVS differently from static content on the web server's


-----Original Message-----
From: Nathan Bubna [] 
Sent: Thursday, December 04, 2008 4:45 PM
To: Velocity Users List
Subject: Re: Velocity View Servlet - how to serve page w/o HTTP header

I agree with Claude, HTTP headers are necessary since you are using the
HTTP protocol.  You just need to set the proper Content-type and
Content-disposition.  And i also wonder what you mean by HTTP headers,
since you refer to HTTP footers as well.  I don't think there's any such
thing as HTTP footers.  Do you mean HTML headers and footers?
Are you using the VelocityLayoutServlet perchance?

On Thu, Dec 4, 2008 at 2:05 PM, Bailey, David <>
> I have developed a servlet which is really nothing more than the 
> Velocity View Servlet using a toolbox of tools I wrote and plugged in 
> using the toolbox.xml file.  This has served me quite well, until now.
> My servlet is basically an order entry system, and one component of 
> the system is a report generator.  In my initial implementation, the 
> reports are generated in HTML.  However, I have received a new feature

> request that the reports be generated for the user in CSV format as
> I have attempted to satisfy this enhancement request by setting the 
> <servlet-mapping> element in web.xml to send both *.vm and *.xls files

> through Velocity, and then wrote a new VTL template with a .xls 
> extension.  But it seems that the Velocity View Servlet always wants 
> to include HTTP headers in the files it parses and serves, and this is

> cumbersome from an end-user perspective  (the existence of HTTP 
> headers makes it cumbersome for the user to save the content as a true

> CSV file).
> I've browsed the archives and discovered that I can set the 
> content-type of a served file using, but I don't 
> see any way to suppress the HTTP header altogether.  Is my only choice

> here to subclass VelocityViewServlet so I can strip out the HTTP 
> headers (and footer) before the page is served, or is there some other

> solution, possibly via
> Thanks,
> --dave
> P.S.  Sorry if this gets posted twice --- it didn't seem to post the 
> first time.
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