Hi Christopher,
my jsp invoke to the servlet and it writes a pdf into a file ant send it by email. I need this functionality because it´s the user who decides to generate or not this report. My version of jasper report it´s 2.0, I don´t know if it´s can be a bug for this version, because my tomcat hangs when it´s generate a pdf and after one hour appears this error. Do you think that this can be hang the tomcat? I´ll try set session="true" and test it. Many thanks for your help Chris. Raquel > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Raquel, > > On 5/29/2009 6:35 AM, Raquel Hernández Martinez wrote: >> I am using apache Tomcat 5.5 which is set up on a hp-ux machine. >> my application uses jaspert-reports >> At times during we use jaspert-rerpot for generate to a pdf, get an >> error >> as shown below, and this causes the servers hangs and can not log on the >> tomcat console and application. > > Ugh... are you really using JSP to generate a PDF through jasper > reports? Does the JSP actually generate a PDF to the output stream, or > do you write the PDF to a file and then redirect to it or something like > that? > > JSP wasn't designed to generate binary content, although it /can/ be > beaten into submission in order to do so. > >> SEVERE: Exception initializing page context >> java.lang.IllegalStateException: Cannot create a session after the >> response has been committed >> at org.apache.catalina.connector.Request.doGetSession(Unknown >> Source) > > [snip] > >> at >> org.apache.catalina.core.ApplicationDispatcher.include(Unknown >> Source) >> at org.apache.jasper.runtime.JspRuntimeLibrary.include(Unknown >> Source) >> at >> org.apache.jsp.jsp.Alarma_Detalle_Service_jsp._jspService(Alarma_Detalle_Service_jsp.java:122) > > The problem is that you are "including" one page from another, and the > page you are calling requires a session. The including page apparently > does /not/ need a session, and so the included page tries to create one. > > In spite of the fact that the servlet spec specifically forbids this, > Tomcat is trying it, anyway, and when the session is created, a > Set-Cookie header needs to be sent to the browser. If the headers have > already been sent, you get this error. > > Solutions? > > I'd set session="true" in "Alarma Detalle Service.jsp" and see if that > helps. > > I'd also try not to generate PDF output from a JSP ;) > > - -chris > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.9 (MingW32) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ > > iEYEARECAAYFAkogrMEACgkQ9CaO5/Lv0PD7zwCfcsAPP4svbeje8grUXb/bhtMA > CZwAoK/kH6NgoELp7VDwXT5CIxkHUiC0 > =VxRQ > -----END PGP SIGNATURE----- > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > >
