Have you verified that req.getParameter("body") does not return null?
- Jason
On Mon, Sep 14, 2009 at 5:37 AM, mahesh <nimmala.anukar...@gmail.com> wrote:
>
> hi i am working with a sample application in gooleappengine and when
> iam sending a request to application through the browser iam getting
> the following error
>
> HTTP ERROR: 500
>
> Must set a body
>
> RequestURI=/helloxmpp1
> Caused by:
>
> java.lang.IllegalArgumentException: Must set a body
> at com.google.appengine.api.xmpp.MessageBuilder.build
> (MessageBuilder.java:54)
> at com.google.appengine.demos.HelloXmpp1Servlet.doGet
> (HelloXmpp1Servlet.java:41)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:693)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:806)
> at
> org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
> 487)
> at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
> (ServletHandler.java:1093)
> at
> com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter
> (TransactionCleanupFilter.java:43)
> at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
> (ServletHandler.java:1084)
> at com.google.appengine.tools.development.StaticFileFilter.doFilter
> (StaticFileFilter.java:121)
> at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter
> (ServletHandler.java:1084)
> at org.mortbay.jetty.servlet.ServletHandler.handle
> (ServletHandler.java:360)
> at org.mortbay.jetty.security.SecurityHandler.handle
> (SecurityHandler.java:216)
> at org.mortbay.jetty.servlet.SessionHandler.handle
> (SessionHandler.java:181)
> at org.mortbay.jetty.handler.ContextHandler.handle
> (ContextHandler.java:712)
> at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
> 405)
> at
> com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle
> (DevAppEngineWebAppContext.java:54)
> at org.mortbay.jetty.handler.HandlerWrapper.handle
> (HandlerWrapper.java:139)
> at com.google.appengine.tools.development.JettyContainerService
> $ApiProxyHandler.handle(JettyContainerService.java:313)
> at org.mortbay.jetty.handler.HandlerWrapper.handle
> (HandlerWrapper.java:139)
> at org.mortbay.jetty.Server.handle(Server.java:313)
> at
> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
> 506)
> at org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete
> (HttpConnection.java:830)
> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514)
> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381)
> at org.mortbay.io.nio.SelectChannelEndPoint.run
> (SelectChannelEndPoint.java:396)
> at org.mortbay.thread.BoundedThreadPool$PoolThread.run
> (BoundedThreadPool.java:442)
>
> Powered by Jetty://
>
> actually class and xml file which i have written for my application
> are as follows:
>
> java class:
>
>
> // Copyright 2008 Google Inc. All rights reserved.
>
> package com.google.appengine.demos;
>
> import com.google.appengine.api.xmpp.JID;
> import com.google.appengine.api.xmpp.Message;
> import com.google.appengine.api.xmpp.MessageBuilder;
> import com.google.appengine.api.xmpp.MessageType;
> import com.google.appengine.api.xmpp.Presence;
> import com.google.appengine.api.xmpp.SendResponse;
> import com.google.appengine.api.xmpp.XMPPService;
> import com.google.appengine.api.xmpp.XMPPServiceFactory;
>
> import java.io.IOException;
> import java.util.Map;
>
> import javax.servlet.http.HttpServlet;
> import javax.servlet.http.HttpServletRequest;
> import javax.servlet.http.HttpServletResponse;
>
> /**
> * HelloXmpp is an echo bot that sends back the message it receives.
> */
> public class HelloXmpp1Servlet extends HttpServlet {
>
> private XMPPService xmppService;
>
> @Override
> public void init() {
> this.xmppService = XMPPServiceFactory.getXMPPService();
> }
>
> // For testing. Real requests are POST
> public void doGet(HttpServletRequest req, HttpServletResponse res)
> throws IOException {
> Message message =new MessageBuilder()
> .withMessageType(MessageType.CHAT)
> .withFromJid(new JID(req.getParameter("from")))
> .withRecipientJids(new JID(req.getParameter("to")))
> .withBody(req.getParameter("body"))
> .build();
> processMessage(message, res);
> }
>
> public void doPost(HttpServletRequest req, HttpServletResponse res)
> throws IOException {
> processMessage(xmppService.parseMessage(req), res);
> }
>
> public void processMessage(Message message, HttpServletResponse res)
> throws IOException {
> JID fromId = message.getFromJid();
> Presence presence = xmppService.getPresence(fromId);
> String presenceString = presence.isAvailable() ? "" : "not ";
> SendResponse response = xmppService.sendMessage(
> new MessageBuilder().
> withBody(message.getBody() + " (you are " + presenceString +
> "available)").
> withRecipientJids(fromId).
> build());
>
> for (Map.Entry<JID, SendResponse.Status> entry :
> response.getStatusMap().entrySet()) {
> res.getWriter().println(entry.getKey() + "," + entry.getValue()
> + "<br>");
> }
>
> res.getWriter().println("processed");
> }
> }
>
>
> xml file is as follows:
>
>
> <?xml version="1.0" encoding="utf-8"?>
> <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
> xmlns="http://java.sun.com/xml/ns/javaee";
> xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd";
> xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
> http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"; version="2.5">
> <servlet>
> <servlet-name>FractalTile</servlet-name>
> <servlet-
> class>com.google.appengine.demos.mandelbrot.FractalTileServlet</
> servlet-class>
> </servlet>
> <servlet-mapping>
> <servlet-name>FractalTile</servlet-name>
> <url-pattern>/fractaltile</url-pattern>
> </servlet-mapping>
> <welcome-file-list>
> <welcome-file>index.html</welcome-file>
> </welcome-file-list>
> </web-app>
>
> so please tell me if any corrections to be done in my code
>
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