EJB 3.0 - Injection via annotation into a servlet
Hello Community,
I am trying to get a web application working. Therefore I made a servlet, a stateless session bean and an interface for that bean. Now I am trying to get my bean injected (I think that is the correct expression?) into the servlet to call a function. I activate the servlet via a url - that is working. But as soon as I enter the code for the injection my JBoss throws an error on deploying.
I have tried numerous ways but nothing helped. I have spent 3 days on this now and it would be really helpful if there is any advice for what I am doing wong.
Ok, lets get a bit more precise.
I am using Eclipse 3.5 (also to generate the EAR file for the JBoss) and JBoss 5.1.0.GA
My servlet code looks as follows:
package com;
import java.io.IOException;
import javax.ejb.EJB;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.log4j.Logger;
import com.session.PersonControllerEJBRemote;
public class SnoopServlet extends HttpServlet
{
Logger logger = Logger.getLogger(SnoopServlet.class);
@EJB
PersonControllerEJBRemote personControllerEJB;
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException
{
logger.info("doGet()");
personControllerEJB.addPerson();
}
}
Stateless Session Bean:
package com.session;
import java.io.Serializable;
import java.util.Date;
import javax.ejb.Local;
import javax.ejb.Stateless;
import javax.persistence.EntityManager;
import javax.persistence.PersistenceContext;
import org.apache.log4j.Logger;
import org.apache.ws.scout.registry.infomodel.PersonNameImpl;
@Stateless
public class PersonControllerEJBImpl implements PersonControllerEJBRemote, Serializable
{
@PersistenceContext(unitName="PersonControllerEJBImpl")
private EntityManager em;
private Logger logger = Logger.getLogger(PersonNameImpl.class);
public void addPerson()
{
logger.info("addPerson()");
System.out.println("Person added!");
}
public String findPerson(int personId)
{
return;
}
}
Interface
package com.session;
import java.util.Date;
import javax.ejb.Remote;
@Remote
public interface PersonControllerEJBRemote
{
public void addPerson();
public Person findPerson(int personId);
}
and finally the error message:
15:22:06,375 INFO [TomcatDeployment] deploy, ctxPath=/tutorial
15:22:06,421 WARN [WebEJBRemoteHandler] EJBTHREE-1289: Using legacy EjbEncInjector, because mappedName for enc "env/com.SnoopServlet/personController
EJB", field "null" is null (container.environmentRefGroup.annotatedEjbReferences = [AnnotatedEJBReferenceMetaData{name=com.SnoopServlet/personControll
erEJB,ejb-ref-type=null,link=null,ignore-dependecy=false,mapped/jndi-name=null,resolved-jndi-name=null,beanInterface=interface com.session.PersonContr
ollerEJBLocal}])
15:22:06,437 ERROR [TomcatDeployment] ENC setup failed
java.lang.IllegalStateException: Resolution should not happen via injection container
at org.jboss.web.tomcat.service.TomcatInjectionContainer.getEjbJndiName(TomcatInjectionContainer.java:640)
at org.jboss.injection.EjbEncInjector.inject(EjbEncInjector.java:80)
at org.jboss.web.tomcat.service.TomcatInjectionContainer.populateEnc(TomcatInjectionContainer.java:482)
at org.jboss.web.tomcat.service.deployers.TomcatDeployment$EncListener.lifecycleEvent(TomcatDeployment.java:471)
at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:117)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4388)
at org.jboss.web.tomcat.service.deployers.TomcatDeployment.performDeployInternal(TomcatDeployment.java:310)
at org.jboss.web.tomcat.service.deployers.TomcatDeployment.performDeploy(TomcatDeployment.java:142)
at org.jboss.web.deployers.AbstractWarDeployment.start(AbstractWarDeployment.java:461)
at org.jboss.web.deployers.WebModule.startModule(WebModule.java:118)
at org.jboss.web.deployers.WebModule.start(WebModule.java:97)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:157)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:668)
at org.jboss.system.microcontainer.ServiceProxy.invoke(ServiceProxy.java:206)
at $Proxy38.start(Unknown Source)
at org.jboss.system.microcontainer.StartStopLifecycleAction.installAction(StartStopLifecycleAction.java:42)
at org.jboss.system.microcontainer.StartStopLifecycleAction.installAction(StartStopLifecycleAction.java:37)
at org.jboss.dependency.plugins.action.SimpleControllerContextAction.simpleInstallAction(SimpleControllerContextAction.java:62)
at org.jboss.dependency.plugins.action.AccessControllerContextAction.install(AccessControllerContextAction.java:71)
at org.jboss.dependency.plugins.AbstractControllerContextActions.install(AbstractControllerContextActions.java:51)
...
