Seam3 /焊接 - 找不到實體管理器

我有一個項目（EJB 3.0，打包爲EAR）與視圖（JSF 2.0）和持久性（JPA 2.0，Hibernate）層。爲了避免懶惰的初始化支持和其他問題，我嘗試用Seam 3.0.0.Final引入Seam管理的持久化上下文。爲此，我寫了下面製作類：Seam3 /焊接 - 找不到實體管理器

import javax.enterprise.context.ConversationScoped; 
import javax.enterprise.inject.Produces; 
import javax.persistence.EntityManagerFactory; 
import javax.persistence.PersistenceUnit; 

import org.jboss.seam.solder.core.ExtensionManaged; 

class PersistenceProvider { 
    @ExtensionManaged 
    @Produces 
    @PersistenceUnit 
    @ConversationScoped 
    private EntityManagerFactory producerField; 
}

，改變了@PersistenceContext註釋上我的EntityManager領域@Inject。

如果蔭試圖使用EntityManager現在我就在下面的堆棧跟蹤：

<WARNUNG: StandardWrapperValve[Faces Servlet]: PWC1406: Servlet.service() for servlet Faces Servlet threw exception 
javax.faces.el.EvaluationException: java.lang.RuntimeException: java.lang.RuntimeException: Could not find EntityManagerFactory bean with qualifiers[@javax.enterprise.inject.Any(), @javax.enterprise.inject.Default()] 
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:102) 
at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102) 
at javax.faces.component.UICommand.broadcast(UICommand.java:315) 
at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:794) 
at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1259) 
at com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:81) 
at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) 
at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) 
at javax.faces.webapp.FacesServlet.service(FacesServlet.java:409) 
at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1534) 
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:326) 
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:227) 
at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:170) 
at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:822) 
at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:719) 
at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1013) 
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:662) 
Caused by: java.lang.RuntimeException: java.lang.RuntimeException: Could not find EntityManagerFactory bean with qualifiers[@javax.enterprise.inject.Any(), @javax.enterprise.inject.Default()] 
at org.jboss.seam.persistence.ManagedPersistenceContextBeanLifecycle.create(ManagedPersistenceContextBeanLifecycle.java:126) 
at org.jboss.seam.persistence.ManagedPersistenceContextBeanLifecycle.create(ManagedPersistenceContextBeanLifecycle.java:46) 
at org.jboss.seam.solder.bean.ImmutableBean.create(ImmutableBean.java:87) 
at org.jboss.weld.context.AbstractContext.get(AbstractContext.java:121) 
at org.jboss.weld.bean.proxy.ContextBeanInstance.getInstance(ContextBeanInstance.java:99) 
at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:124) 
at org.jboss.weld.proxies.SMPC-org$jboss$seam$persistence$ManagedPersistenceContextExtension-de$wintersolutions$fitnessbuddy$persistence$cdi$PersistenceProvider$producerField[@javax$enterprise$context$ConversationScoped()@javax$enterprise$inject$Produces()@javax$persistence$PersistenceUnit(name=,unitName=)@org$jboss$seam$solder$core$ExtensionManaged()]_$$_WeldClientProxy.persist(SMPC-org$jboss$seam$persistence$ManagedPersistenceContextExtension-de$wintersolutions$fitnessbuddy$persistence$cdi$PersistenceProvider$producerField[@javax$enterprise$context$ConversationScoped()@javax$enterprise$inject$Produces()@javax$persistence$PersistenceUnit(name=,unitName=)@org$jboss$seam$solder$core$ExtensionManaged()]_$$_WeldClientProxy.java) 
at de.wintersolutions.fitnessbuddy.view.controller.ExerciseController.saveExercise(ExerciseController.java:54) 
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:597) 
at javax.el.BeanELResolver.invokeMethod(BeanELResolver.java:737) 
at javax.el.BeanELResolver.invoke(BeanELResolver.java:467) 
at javax.el.CompositeELResolver.invoke(CompositeELResolver.java:254) 
at com.sun.el.parser.AstValue.invoke(AstValue.java:228) 
at com.sun.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:297) 
at org.jboss.weld.util.el.ForwardingMethodExpression.invoke(ForwardingMethodExpression.java:43) 
at org.jboss.weld.el.WeldMethodExpression.invoke(WeldMethodExpression.java:56) 
at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105) 
at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:88) 
... 33 more 
Caused by: java.lang.RuntimeException: Could not find EntityManagerFactory bean with qualifiers[@javax.enterprise.inject.Any(), @javax.enterprise.inject.Default()] 
at org.jboss.seam.persistence.ManagedPersistenceContextBeanLifecycle.getEntityManagerFactory(ManagedPersistenceContextBeanLifecycle.java:210) 
at org.jboss.seam.persistence.ManagedPersistenceContextBeanLifecycle.create(ManagedPersistenceContextBeanLifecycle.java:104) 
... 53 more

調試一個應用在Glassfish 3.1給我提供了以下見解

實體管理器的代理類型

entityManager SMPC-org$jboss$seam$persistence$ManagedPersistenceContextExtension-com$example$PersistenceProvider$producerField[@javax$enterprise$context$ConversationScoped()@javax$enterprise$inject$Produces()@javax$persistence$PersistenceUnit(name=,unitName=)@org$jboss$seam$solder$core$ExtensionManaged()]_$$_WeldClientProxy

生產者字段不能在BeanManager的豆場的方法org.jboss.seam.pers的範圍發現istence.ManagedPersistenceContextBeanLifecycle.getEntityManagerFactory，但在注入到我的DAO的BeanManager中。

我嘗試了一些變體，例如限定生產者字段，嘗試在視圖圖層服務中注入實體管理器，並將生成器字段的@PersistenceUnit註釋中的unitName和/或持久性單元的名稱添加到該字段中。

任何建議什麼即時做錯了什麼？

來源

2011-05-10 wintersolutions

好像在EJB的MDB中沒有活動的對話（或會話）範圍。

您需要手動活躍的一個。您可以通過以下的MessageHandler實現您的MDB做到這一點：

@Inject 
private BoundConversationContext boundConversationContext; 

public void onMessage(Message message) { 
    BoundRequest boundRequest = null; 
    try { 
     boundRequest = new MutableBoundRequest(new HashMap<String, Object>(), new HashMap<String, Object>()); 
     boundConversationContext.associate(boundRequest); 
     if (!boundConversationContext.isActive()) 
      boundConversationContext.activate(); 
     // DO YOUR BUSINESS LOGIC HERE 
    } finally { 
     if (boundConversationContext != null) { 
      if (boundRequest != null) 
       boundConversationContext.dissociate(boundRequest); 
      if (boundConversationContext.isActive()) { 
       boundConversationContext.deactivate(); 
      } 
     } 
    } 
}

這爲我工作在JBoss AS 6，嘗試當一個MDB有縫的持久性整合。

來源

2011-07-28 11:26:30 Yonatan

Seam3 /焊接 - 找不到實體管理器

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