hi Craig,
The stream.write() method returns void.
I had taken the original code snippet from one of your
other postings.
I had the
"while (sent < data.length)
{
sent += stream.write(data, sent, data.length -
sent);
}" code but it does not compile.
Thatz the reason i didnt do the "while" check.
What is the proper way to make sure all the data
reaches teh browser.
Regards
Ashok
--- "Craig R. McClanahan" <[EMAIL PROTECTED]> wrote:
>
>
> On Tue, 10 Jun 2003, Ashok Madhavan wrote:
>
> > Date: Tue, 10 Jun 2003 21:11:21 -0700 (PDT)
> > From: Ashok Madhavan <[EMAIL PROTECTED]>
> > Reply-To: Jakarta Commons Users List
> <[EMAIL PROTECTED]>
> > To: Jakarta Commons Users List
> <[EMAIL PROTECTED]>
> > Subject: Re: Upload Problem
> >
> > hi Rob,
> > Thanks for the info. I am testing that now.
> > I got a another question.
> > I have a typical upload/download functionality.
> For
> > the upload i use the commons-fileupload and for
> the
> > download i use the ServletOutpurStream like this.
> >
> > ServletOutputStream stream =
> > response.getOutputStream();
> > int sent = 0;
> > stream.write(data, sent, data.length -
> sent);
> > stream.flush();
> > stream.close();
> > return null;
> >
>
> The download code snippet above seems bogus --
> perhaps there were some
> omitted lines? You cannot assume that
> stream.write() will write all of
> the bytes of your data the frst time you call it, so
> you have to
> encapsulate thngs in a while loop (assuming "data"
> is a byte array);
>
> ServletOutputStream stream =
> response.getOutputStream();
> int sent = 0;
> while (sent < data.length) {
> sent += stream.write(data, sent, data.length -
> sent);
> }
> stream.flush();
> stream.close();
> return null;
>
> If you do not do something like this, it's entirely
> possible that you will
> receive only the beginning of the data, rather than
> all of it. The
> precise behavior is totally subject to the JDK an
> servlet container you
> are using, coupled with the dynamic situation when
> the request is made --
> in short, what you'll actually see with your code is
> "undefined" behavior
> :-).
>
> > After a few times (some times just one ) uploading
> and
> > downloading the browser seems to get slower and if
> i
> > click any link on the site, the request does not
> go to
> > the server at all. But if i click any link the
> second
> > time, it goes to the server.
> >
>
> That could also be a result of not processing the
> entire byte array, and
> somehow leaving a reference to it that occupies
> memory.
>
> > Any idea why this weird error is happening?
> >
>
> What wierd error? All you've described is a
> performance issue :-). Such
> a thing could easily result from dangling references
> to the byte array,
> but that's most likely an application issue.
>
> > I am using the weblogic 7.0 and working in Struts
> 1.1
> > RC1.
> >
> > regards
> > Ashok
> >
>
> Craig
>
>
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