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From "Shawn Church" <sh...@boxity.com>
Subject Re: Form upload failure
Date Tue, 02 Jul 2002 19:51:34 GMT
Nick,

I believe Velocity is getting called, because if I submit the form multiple
times, but delay 2-3 seconds between submissions, I don't see a failure.
Also, once in a while the template gets rendered in the browser, followed by
the (same) error message, so it seems Velocity is happy but Apache / Tomcat
doesn't like the response.

Thanks,
Shawn

----- Original Message -----
From: "Nick Temple" <ntemple@alivecity.com>
To: "Velocity Users List" <velocity-user@jakarta.apache.org>
Sent: Tuesday, July 02, 2002 2:26 PM
Subject: RE: Form upload failure


> Hi Shawn --
>
> I tend to agree with you.  I do know that uploaded files are a little
> messier to deal with, however since you aren't actually using the
paramaters
> I don't see how that could be a problem.
>
> I am curious to see where in the code it actually stops processing.  Does
> Velocity even get called? Is the output thrown away by the server engine?
> Anyway, I'm grasping at straws.
>
> Give me a couple of hours and I will get a version running on apache
1.3.26
> / tomcat 4 and see if I can reproduce it.
>
> Nick
>
> -----Original Message-----
> From: velocity-user-return-8057-ntemple=alivecity.com@jakarta.apache.org
> [mailto:velocity-user-return-8057-ntemple=alivecity.com@jakarta.apache.o
> rg]On Behalf Of Shawn Church
> Sent: Tuesday, July 02, 2002 2:14 PM
> To: Velocity Users List
> Subject: Re: Form upload failure
>
>
> Nick,
>
> I am using the same thing in my real code, but for the sake of the
isolation
> test I have removed it.  The problem is not related to the actual upload
> code or any of the com.oreilly package, since I'm not getting that far
> unless I work around the problem at hand by returning a different template
> (than the one which made the request) to Velocity.  My test code only
> involves the single template and the single servlet.  To rule out Apache
and
> mod_jk, I may try to get it running with IIS (or with Tomcat's web
server).
>
> I added the System.err.println(e.toString()), but it logs no exceptions.
>
> Shawn
>
> ----- Original Message -----
> From: "Nick Temple" <ntemple@alivecity.com>
> To: "Velocity Users List" <velocity-user@jakarta.apache.org>
> Sent: Tuesday, July 02, 2002 1:11 PM
> Subject: RE: Form upload failure
>
>
> > Here is the system I am using to handle file-uploads:
> >
> > http://www.servlets.com/cos/index.html
> >
> > However, if the system doesn't hang when POSTing to a different
> > form/servlet, I tend to think that it isn't the POST at all rather
> > "something" in the code.
> >
> > Try writing some code in your try / except clause to see if an error is
> > being thrown and ignored (and any places the servlet might be throwing
an
> > exception).
> >
> >   try
> >   {
> >    return getTemplate(templateName);
> >   }
> >   catch (Exception e)
> >   {
> >     System.err.println(e.toString());
> >   }
> >
> > Nick
> >
> > -----Original Message-----
> > From: velocity-user-return-8053-ntemple=alivecity.com@jakarta.apache.org
> > [mailto:velocity-user-return-8053-ntemple=alivecity.com@jakarta.apache.o
> > rg]On Behalf Of Björn
> > Sent: Tuesday, July 02, 2002 12:58 PM
> > To: Velocity Users List
> > Subject: Re: Form upload failure
> >
> >
> > Do not know if this might be of any help to you...
> >
> > http://www.orionsupport.com/articles/fileupload.html
> >
> > It did help me once =)
> >
> >
> > /Björn
> > ----- Original Message -----
> > From: "Shawn Church" <shawn@boxity.com>
> > To: <velocity-user@jakarta.apache.org>
> > Sent: Tuesday, July 02, 2002 7:17 PM
> > Subject: Form upload failure
> >
> >
> > Does anyone know of any limitations or problems with Velocity 1.2 /
Apache
> > 1.3.24 / Tomcat 3.3a, relating to multipart/form-data templates
containing
> > <INPUT TYPE=FILE> ?  Specifically in the case where I have this type of
> > template, whose form action is to invoke a servlet which then does
nothing
> > except return the same template (which made the request) to Velocity, I
am
> > getting this from Apache:
> >
> > HTTP/1.1 200 OK Date: Tue, 02 Jul 2002 16:48:35 GMT Server:
Apache/1.3.24
> > (Win32) mod_jk/1.1.0 Connection: close Transfer-Encoding: chunked
> > Content-Type: text/html; charset=iso-8859-1
> >
> > This problem occurs if I select a file for upload, or if I do not select
> > anything but rather just resubmit the form a few times in rapid
> succession.
> > If I do not select a file, and submit the form no more often than once
per
> > every couple of seconds, the problem does not occur.
> >
> > Here is a test template:
> >
> > <html>
> > <form action="/ec/servlet/upload" method="post"
> > enctype="multipart/form-data">
> >   Which file to upload? <INPUT TYPE=FILE NAME=file1> <BR>
> > <input type=submit>
> > </form>
> > </html>
> >
> >
> > Here's a snippet of the upload servlet, which is coded to do nothing
> except
> > return the same form which made the request:
> >
> > ...
> > public class upload extends VelocityServlet
> > {
> >  public Template handleRequest( HttpServletRequest _req,
> HttpServletResponse
> > _res, Context _context)
> >  {
> >   String templateName = "upload.vm";
> >
> >   // return the appropriate template
> >   try
> >   {
> >    return getTemplate(templateName);
> >     }
> >     catch (Exception e)
> >     {
> >
> >   }
> >
> >   return null;
> >  }
> > ...
> >
> > My environment is Velocity 1.2 / Apache 1.3.24 / Tomcat 3.3a, IE 6.0,
> > running on Win2k.  If my servlet returns a different template than the
one
> > which made the request, everything is fine.
> >
> > Shawn
> >
> >
> >
> >
> > --
> > To unsubscribe, e-mail:
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> >
> >
> >
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