javax.ejb.EJBException：javax.ejb.CreateException：无法创建无状态的EJB

我找到了一些同名的文章。不幸的是，我找不到任何解决方案来解决我的错误。javax.ejb.EJBException：javax.ejb.CreateException：无法创建无状态的EJB

我是JEE，JSF，EJB的新手。我正在使用Netbeans 7.0.1。我遵循本指南：http://wiki.netbeans.org/DevelopJavaEE6App。

这就是： CustomerSessionBean：

@Stateless 
@LocalBean 
public class CustomerSessionBean { 

@PersistenceContext 
private EntityManager em; 
@Resource(name = "jms/NotificationQueue") 
private Queue notificationQueue; 
@Resource(name = "jms/NotificationQueueFactory") 
private ConnectionFactory notificationQueueFactory; 

public List<Customer> retrieve() { 
    Query query = em.createNamedQuery("Customer.findAll"); 
    return query.getResultList(); 
} 

public Customer update(Customer customer) { 
    Customer updated = em.merge(customer); 
    try { 
     sendJMSMessageToNotificationQueue(updated); 
    } catch (JMSException ex) { 
     Logger.getLogger(CustomerSessionBean.class.getName()).log(Level.SEVERE, null, ex); 
    } 
    System.out.println("Customer updated in CustomerSessionBean!"); 
    return updated; 
} 

private Message createJMSMessageForjmsNotificationQueue(Session session, Object messageData) throws JMSException { 

    ObjectMessage tm = session.createObjectMessage(); 
    tm.setObject((Serializable) messageData); 
    return tm; 
} 

private void sendJMSMessageToNotificationQueue(Object messageData) throws JMSException { 
    Connection connection = null; 
    Session session = null; 
    try { 
     connection = notificationQueueFactory.createConnection(); 
     session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE); 
     MessageProducer messageProducer = session.createProducer(notificationQueue); 
     messageProducer.send(createJMSMessageForjmsNotificationQueue(session, messageData)); 
    } finally { 
     if (session != null) { 
      try { 
       session.close(); 
      } catch (JMSException e) { 
       Logger.getLogger(this.getClass().getName()).log(Level.WARNING, "Cannot close session", e); 
      } 
     } 
     if (connection != null) { 
      connection.close(); 
     } 
    } 
} 

public List<DiscountCode> getDiscountCodes() { 
    Query q = em.createNamedQuery("DiscountCode.findAll"); 
    return q.getResultList(); 
} 
}

我得到这个错误： “javax.ejb.EJBException异常：javax.ejb.CreateException：无法创建无状态EJB” 我每次访问一个JSF页面时（在指南：CustomerList.jsp; CustomerDetails.jsp）如果我不评论“@Resource（name =”jms/NotificationQueue“）”。如果我评论它，jsf页面将显示。

编辑：这是堆栈跟踪：

javax.ejb.EJBException: javax.ejb.EJBException: javax.ejb.CreateException: Could not create stateless EJB 
at com.sun.ejb.containers.StatelessSessionContainer._getContext(StatelessSessionContainer.java:454) 
at com.sun.ejb.containers.BaseContainer.getContext(BaseContainer.java:2528) 
at com.sun.ejb.containers.BaseContainer.preInvoke(BaseContainer.java:1895) 
at com.sun.ejb.containers.EJBLocalObjectInvocationHandler.invoke(EJBLocalObjectInvocationHandler.java:212) 
at com.sun.ejb.containers.EJBLocalObjectInvocationHandlerDelegate.invoke(EJBLocalObjectInvocationHandlerDelegate.java:88) 
at $Proxy226.retrieve(Unknown Source) 
at com.customerapp.ejb.__EJB31_Generated__CustomerSessionBean__Intf____Bean__.retrieve(Unknown Source) 
at com.customerapp.web.CustomerMBean.getCustomers(CustomerMBean.java:31) 
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) 
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
at java.lang.reflect.Method.invoke(Method.java:601) 
at javax.el.BeanELResolver.getValue(BeanELResolver.java:302) 
at com.sun.faces.el.DemuxCompositeELResolver._getValue(DemuxCompositeELResolver.java:176) 
at com.sun.faces.el.DemuxCompositeELResolver.getValue(DemuxCompositeELResolver.java:203) 
at com.sun.el.parser.AstValue.getValue(AstValue.java:116) 
at com.sun.el.parser.AstValue.getValue(AstValue.java:163) 
at com.sun.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:219) 
at org.jboss.weld.el.WeldValueExpression.getValue(WeldValueExpression.java:55) 
at org.jboss.weld.el.WeldValueExpression.getValue(WeldValueExpression.java:55) 
at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:194) 
at javax.faces.component.ComponentStateHelper.eval(ComponentStateHelper.java:182) 
at javax.faces.component.UIData.getValue(UIData.java:731) 
at javax.faces.component.UIData.getDataModel(UIData.java:1798) 
at javax.faces.component.UIData.setRowIndexWithoutRowStatePreserved(UIData.java:484) 
at javax.faces.component.UIData.setRowIndex(UIData.java:473) 
at com.sun.faces.renderkit.html_basic.TableRenderer.encodeBegin(TableRenderer.java:81) 
at javax.faces.component.UIComponentBase.encodeBegin(UIComponentBase.java:820) 
at javax.faces.component.UIData.encodeBegin(UIData.java:1118) 
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1754) 
at javax.faces.render.Renderer.encodeChildren(Renderer.java:168) 
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:845) 
at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:304) 
at com.sun.faces.renderkit.html_basic.GridRenderer.renderRow(GridRenderer.java:185) 
at com.sun.faces.renderkit.html_basic.GridRenderer.encodeChildren(GridRenderer.java:129) 
at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:845) 
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1756) 
at javax.faces.component.UIComponent.encodeAll(UIComponent.java:1759) 
at com.sun.faces.application.view.JspViewHandlingStrategy.doRenderView(JspViewHandlingStrategy.java:432) 
at com.sun.faces.application.view.JspViewHandlingStrategy.renderView(JspViewHandlingStrategy.java:233) 
at com.sun.faces.application.view.MultiViewHandler.renderView(MultiViewHandler.java:131) 
at javax.faces.application.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:288) 
at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:121) 
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) 
at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:139) 
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:594) 
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1539) 
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:281) 
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) 
at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655) 
at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595) 
at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98) 
at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91) 
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162) 
at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:330) 
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231) 
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:174) 
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:828) 
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:725) 
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1019) 
at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225) 
at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137) 
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104) 
at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90) 
at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79) 
at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54) 
at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59) 
at com.sun.grizzly.ContextTask.run(ContextTask.java:71) 
at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532) 
at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513) 
at java.lang.Thread.run(Thread.java:722) 
Caused by: javax.ejb.EJBException: javax.ejb.CreateException: Could not create stateless EJB 
at com.sun.ejb.containers.StatelessSessionContainer$SessionContextFactory.create(StatelessSessionContainer.java:726) 
at com.sun.ejb.containers.util.pool.NonBlockingPool.getObject(NonBlockingPool.java:247) 
at com.sun.ejb.containers.StatelessSessionContainer._getContext(StatelessSessionContainer.java:449) 
... 70 more 
Caused by: javax.ejb.CreateException: Could not create stateless EJB 
at com.sun.ejb.containers.StatelessSessionContainer.createStatelessEJB(StatelessSessionContainer.java:534) 
at com.sun.ejb.containers.StatelessSessionContainer.access$000(StatelessSessionContainer.java:95) 
at com.sun.ejb.containers.StatelessSessionContainer$SessionContextFactory.create(StatelessSessionContainer.java:724) 
... 72 more 
Caused by: java.lang.IllegalStateException: Exception attempting to inject Unresolved Message-Destination-Ref jms/[email protected]@null into class com.customerapp.ejb.CustomerSessionBean: Lookup failed for 'java:comp/env/jms/NotificationQueue' in SerialContext[myEnv={java.naming.factory.initial=com.sun.enterprise.naming.impl.SerialInitContextFactory, java.naming.factory.state=com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl, java.naming.factory.url.pkgs=com.sun.enterprise.naming} 
at org.glassfish.weld.services.InjectionServicesImpl.aroundInject(InjectionServicesImpl.java:137) 
at org.jboss.weld.injection.InjectionContextImpl.run(InjectionContextImpl.java:50) 
at org.jboss.weld.bean.SessionBean$1.inject(SessionBean.java:190) 
at org.glassfish.weld.services.JCDIServiceImpl.injectEJBInstance(JCDIServiceImpl.java:223) 
at com.sun.ejb.containers.BaseContainer.injectEjbInstance(BaseContainer.java:1675) 
at com.sun.ejb.containers.StatelessSessionContainer.createStatelessEJB(StatelessSessionContainer.java:494) 
... 74 more 
Caused by: com.sun.enterprise.container.common.spi.util.InjectionException: Exception attempting to inject Unresolved Message-Destination-Ref jms/[email protected]@null into class com.customerapp.ejb.CustomerSessionBean: Lookup failed for 'java:comp/env/jms/NotificationQueue' in SerialContext[myEnv={java.naming.factory.initial=com.sun.enterprise.naming.impl.SerialInitContextFactory, java.naming.factory.state=com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl, java.naming.factory.url.pkgs=com.sun.enterprise.naming} 
at com.sun.enterprise.container.common.impl.util.InjectionManagerImpl._inject(InjectionManagerImpl.java:703) 
at com.sun.enterprise.container.common.impl.util.InjectionManagerImpl.inject(InjectionManagerImpl.java:470) 
at com.sun.enterprise.container.common.impl.util.InjectionManagerImpl.injectInstance(InjectionManagerImpl.java:171) 
at org.glassfish.weld.services.InjectionServicesImpl.aroundInject(InjectionServicesImpl.java:130) 
... 79 more 
Caused by: javax.naming.NamingException: Lookup failed for 'java:comp/env/jms/NotificationQueue' in SerialContext[myEnv={java.naming.factory.initial=com.sun.enterprise.naming.impl.SerialInitContextFactory, java.naming.factory.state=com.sun.corba.ee.impl.presentation.rmi.JNDIStateFactoryImpl, java.naming.factory.url.pkgs=com.sun.enterprise.naming} [Root exception is javax.naming.NameNotFoundException: No object bound for java:comp/env/jms/NotificationQueue [Root exception is java.lang.NullPointerException]] 
at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:518) 
at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:455) 
at javax.naming.InitialContext.lookup(InitialContext.java:411) 
at javax.naming.InitialContext.lookup(InitialContext.java:411) 
at com.sun.enterprise.container.common.impl.util.InjectionManagerImpl._inject(InjectionManagerImpl.java:599) 
... 82 more 
Caused by: javax.naming.NameNotFoundException: No object bound for java:comp/env/jms/NotificationQueue [Root exception is java.lang.NullPointerException] 
at com.sun.enterprise.naming.impl.JavaURLContext.lookup(JavaURLContext.java:242) 
at com.sun.enterprise.naming.impl.SerialContext.lookup(SerialContext.java:498) 
... 86 more 
Caused by: java.lang.NullPointerException 
at com.sun.enterprise.naming.impl.WrappedSerialContext.getURLScheme(WrappedSerialContext.java:146) 
at com.sun.enterprise.naming.impl.WrappedSerialContext.getURLOrDefaultInitCtx(WrappedSerialContext.java:103) 
at javax.naming.InitialContext.lookup(InitialContext.java:411) 
at javax.naming.InitialContext.lookup(InitialContext.java:411) 
at com.sun.enterprise.naming.util.JndiNamingObjectFactory.create(JndiNamingObjectFactory.java:82) 
at com.sun.enterprise.naming.impl.GlassfishNamingManagerImpl.lookup(GlassfishNamingManagerImpl.java:776) 
at com.sun.enterprise.naming.impl.GlassfishNamingManagerImpl.lookup(GlassfishNamingManagerImpl.java:744) 
at com.sun.enterprise.naming.impl.JavaURLContext.lookup(JavaURLContext.java:172) 
... 87 more

来源

2011-08-26 hainp

的JMS目的地jms/NotificationQueue通常需要被创建。指南的确没有提到它。

也许Netbeans向导自动为您创建它，并且您还没有通过向导创建MDB？

编辑：

的指南并提到它：

In the New Message-Driven Bean dialog, specify the EJB Name as NotificationBean and the package as "com.customerapp.mdb", click on the "Add..." button of the Project Destination option

In the Add Message Destination dialog, specify the Destination Name as NotificationQueue and keep the Destination Type as Queue and click OK

这让向导创建一个glassfish-resources.xml文件，它定义了队列：

<resources> 
    <admin-object-resource enabled="true" jndi-name="jms/NotificationQueue" res-type="javax.jms.Queue" res-adapter="jmsra"> 
     <property name="Name" value="PhysicalQueue"/> 
    </admin-object-resource> 
    <connector-connection-pool name="jms/NotificationQueueFactoryPool" connection-definition-name="javax.jms.QueueConnectionFactory" resource-adapter-name="jmsra"/> 
    <connector-resource enabled="true" jndi-name="jms/NotificationQueueFactory" pool-name="jms/NotificationQueueFactoryPool" /> 
</resources>

如果你没有关注的对于这封信和/或不使用Glassfish的指南，您必须自己定义它（请注意，每个Java EE实现都有不同的语法）。

来源

2011-08-26 12:13:36 akira

谢谢你回答我，嗯..我使用NetBeans向导创建NotificationBean（按照Netbeans指南）。我在管理控制台中检查了Glassfish，创建了JMS目标jms/NotificationQueue。 – hainp

您可能想要尝试删除向导在EJB模块中创建的不必要的xml文件：转到Files视图，然后转到CustomerApp-ejb - > src - > conf并删除清单和glassfish-ejb.xml文件（只有peristence.xml应该保留）。特别是glassfish-ejb.xml是完全没有必要的（因为EJB已经注释了），在这种情况下实际上可能是有害的。 – akira

p.s.我也很快跟上了指南，而且这里工作起来。 – akira

与GlassFish ejb-jar.xml中和清洁&构建的删除帮助我的情况下（Netbeans的7.1.1，3.1.2的GlassFish）

来源

2012-03-27 18:41:22 BeePee

javax.ejb.EJBException：javax.ejb.CreateException：无法创建无状态的EJB

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