I visited http://localhost:8080/examples/jsp/chat/login.jsp and type whatever Nickname it requires, but what I get is a page saying "Chat example only supports Comet processing". Then I checked the ChatServlet class and I know why I get that response which is written in service(). So what I want to know is how can I use it?
2007/6/22, Ritesh Kumar <[EMAIL PROTECTED]>:
To Tony: For running this e.g start Tomcat. Type URL: http://localhost:8080/examples/jsp/chat/login.jsp Running this example on Tomcat 6.0.13 has not proved of any assistance to me. It would be very nice if more explanation of this e.g is available. I have made one change in this e.g. It seems that if this e.g is executed then the line begin(event, request, response); is never reached. So I shifted this line so that in case block "login".equals(action) is true begin method gets called (before return). I have some doubts regarding this e.g. 1) In what scenarios CometEvent.close() method should be called? 2) Some times when NullPointerException is not thrown, "error" event gets generated. This happens at the time I post a message in the post.jsp page. Why was this "error" event gets generated is not clear to me? Thanks Ritesh Tony Winslow wrote: > > Could anybody make it detailed about the ChatServer sample? > I even don't know how to run it! Thank you! > > 2007/6/22, Reich, Matthias <[EMAIL PROTECTED]>: >> >> There have been a lot of things fixed and enhanced in the Comet area >> since version 6.0.10. >> You should better try with version 6.0.13. >> >> Regards, >> Matthias >> >> > -----Original Message----- >> > From: Ritesh Kumar [mailto:[EMAIL PROTECTED] >> > Sent: Thursday, June 21, 2007 11:43 AM >> > To: users@tomcat.apache.org >> > Subject: Comet example Tomcat 6 not working. >> > >> > >> > Hi, >> > >> > I am trying to run the comet sample given along with tomcat. >> > The sample is >> > not working correctly most of the time. I am using NIO >> > connectors and Tomcat >> > version is 6.0.10. >> > I have some doubts also: >> > >> > 1) In the ChatServer example, a thread (using a Runnable >> > MessageSender) is >> > sending responses the clients. Is it possible to write >> > multiple times to the >> > same response. Because when we do writer.flush() then that >> > response is sent >> > to the client. >> > >> > 2) The READ event is never invoked in my example. whenever I >> > send a request >> > only BEGIN event is getting called. I thought, for the first >> > time only BEGIN >> > event should get called, and for further requests by the same >> > client, READ >> > event should get called. >> > >> > 3) I am getting exception at the line where the thread which >> > is trying to >> > write to response stream is calling the flush method. >> > The code (from tomcat example) is: >> > >> > for (int i = 0; i < connections.size(); i++) { >> > try { >> > PrintWriter writer = >> > connections.get(i).getWriter(); >> > String toBeFlushed = ""; >> > for (int j = 0; j < >> > pendingMessages.length; j++) >> > { >> > // FIXME: Add HTML filtering >> > writer.println(pendingMessages[j] + >> > "<br/>"); >> > } >> > writer.println("Random message 1" >> > + "<br/>"); >> > writer.println("Random message 2" >> > + "<br/>"); >> > System.out.println("writer will flush now. >> > writer is null?=" + writer == null); >> > writer.flush(); >> > } catch (IOException e) { >> > log("IOExeption sending message", e); >> > } >> > } >> > >> > And the error message I am getting is: >> > >> > Exception in thread "MessageSender[/CometTestApp]" >> > java.lang.NullPointerException >> > at >> > org.apache.coyote.http11.InternalNioOutputBuffer.addToBB(Inter >> > nalNioOutputBuffer.java:607) >> > at >> > org.apache.coyote.http11.InternalNioOutputBuffer.commit(Intern >> > alNioOutputBuffer.java:600) >> > at >> > org.apache.coyote.http11.Http11NioProcessor.action(Http11NioPr >> > ocessor.java:1010) >> > at org.apache.coyote.Response.action(Response.java:183) >> > at org.apache.coyote.Response.sendHeaders(Response.java:379) >> > at >> > org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffe >> > r.java:305) >> > at >> > org.apache.catalina.connector.OutputBuffer.flush(OutputBuffer. >> > java:288) >> > at >> > org.apache.catalina.connector.CoyoteWriter.flush(CoyoteWriter.java :95) >> > at >> > com.headstrong.test.ChatServlet$MessageSender.run(ChatServlet. >> > java:276) >> > at java.lang.Thread.run(Thread.java:595) >> > >> > >> > -- >> > View this message in context: >> > http://www.nabble.com/Comet-example-Tomcat-6-not-working.-tf39 >> > 57585.html#a11229741 >> > Sent from the Tomcat - User mailing list archive at Nabble.com. >> > >> > >> > --------------------------------------------------------------------- >> > To start a new topic, e-mail: users@tomcat.apache.org >> > To unsubscribe, e-mail: [EMAIL PROTECTED] >> > For additional commands, e-mail: [EMAIL PROTECTED] >> > >> > >> >> --------------------------------------------------------------------- >> To start a new topic, e-mail: users@tomcat.apache.org >> To unsubscribe, e-mail: [EMAIL PROTECTED] >> For additional commands, e-mail: [EMAIL PROTECTED] >> >> > > -- View this message in context: http://www.nabble.com/Comet-example-Tomcat-6-not-working.-tf3957585.html#a11248825 Sent from the Tomcat - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
