the finishLoad method didn't work, how should i use a listener method approach?

Hermann Yesid Redondo Eslava
Ingeniería de Sistemas
IT-GROUP

---------- Original Message -----------
From: Ivano Pagano <[EMAIL PROTECTED]>
To: Tapestry users <users@tapestry.apache.org>
Sent: Thu, 08 Jun 2006 19:08:24 +0200
Subject: Re: Response is already committed!!! HELP!!!! NEWBIE

> Maybe the page finishLoad(cycle, loader, specification) method?
> 
> Jesse Kuhnert wrote:
> 
> > This is getting sewwious. (sorry, if you have kids you'll know ;))
> >
> > pageBeginRender() is a method that means rendering content back to the
> > browser has already started, at which point it is too late to set the
> > content type of your response.
> >
> > You might try a listener method approach instead, or use a hivemind
> > service
> > to do it directly.
> >
> > On 6/8/06, yesidredondo <[EMAIL PROTECTED]> wrote:
> >
> >>
> >> Hi, i've a problem that don't know how to fix.
> >>
> >> A "java.lang.IllegalStateException: Response is already committed!"
> >> exception
> >> is beeing thrown when i set the content type to ms-excel in the
> >> pagebeginrender method of a page:
> >>
> >> // This is the code i'm using to set the content type on the
> >> pageBeginRender
> >>
> >> HttpServletResponse responses =
> >> this.getPage().getRequestCycle().getRequestContext().getResponse();
> >>                 try {
> >>                         responses.setContentType
> >> ("application/vnd.ms-excel");
> >>                         responses.setHeader("Content-disposition",
> >>                           "inline; filename=report.xls");
> >>                         responses.setContentType
> >> ("application/vnd.ms-excel");
> >>                         responses.flushBuffer();
> >>                 } catch (IOException e) {
> >>                         e.printStackTrace();
> >>                 }
> >>
> >> and this is the full stacktrace:
> >>
> >> java.lang.IllegalStateException: Response is already committed! at
> >> com.evermind[Oracle Application Server Containers for J2EE 10g
> >> (9.0.4.0.0)].server.http.EvermindHttpServletResponse.setContentType(
> >> EvermindHttpServletResponse.java:1049)at
> >> org.apache.tapestry.request.ResponseOutputStream.open(
> >> ResponseOutputStream.java:182)at
> >> org.apache.tapestry.request.ResponseOutputStream.write(
> >> ResponseOutputStream.java:270)
> >> at
> >> sun.nio.cs.StreamEncoder$CharsetSE.writeBytes(StreamEncoder.java:336)at
> >> sun.nio.cs.StreamEncoder$CharsetSE.implClose(StreamEncoder.java:427)at
> >> sun.nio.cs.StreamEncoder.close(StreamEncoder.java:160)at
> >> java.io.OutputStreamWriter.close(OutputStreamWriter.java:222)at
> >> java.io.BufferedWriter.close(BufferedWriter.java:244)   at
> >> java.io.PrintWriter.close(PrintWriter.java:137) at
> >> org.apache.tapestry.AbstractMarkupWriter.close(AbstractMarkupWriter.java
> >> :492)
> >> at
> >> org.apache.tapestry.engine.AbstractEngine.renderResponse(
> >> AbstractEngine.java:764)at
> >> org.apache.tapestry.engine.AbstractEngine.activateExceptionPage(
> >> AbstractEngine.java:476)at
> >> org.apache.tapestry.engine.AbstractEngine.service(AbstractEngine.java
> >> :931)at
> >> org.apache.tapestry.ApplicationServlet.doService(ApplicationServlet.java
> >> :198)at
> >> org.apache.tapestry.ApplicationServlet.doGet(ApplicationServlet.java:159)
> >>
> >> at
> >> javax.servlet.http.HttpServlet.service(HttpServlet.java:740)at
> >> javax.servlet.http.HttpServlet.service(HttpServlet.java:853)at
> >> com.evermind[Oracle Application Server Containers for J2EE 10g
> >> (9.0.4.0.0)].server.http.ServletRequestDispatcher.invoke(
> >> ServletRequestDispatcher.java:765)
> >>
> >>
> >> any help would be really appreciated. Thanks.
> >>
> >> Hermann Yesid Redondo Eslava
> >> Ingeniería de Sistemas
> >> IT-GROUP LTDA.
> >> Bogotá D.C., Colombia.
> >>
> >> ---------------------------------------------------------------------
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> >>
> >>
> >
> >
> 
> --
> Ivano Pagano
> 
> **
> 
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