Исключение при попытке сохранить и EJB

Question

Я новичок с EJB3.

Я создал пользователя dao.

@Entity 
@Table(name = "t_user") 
public class User implements Serializable { 
    /** 
    * 
    */ 
    private static final long serialVersionUID = 1L; 
    @Id 
    @GeneratedValue(strategy = GenerationType.IDENTITY) 
    @Column(name = "id") 
    private Long id; 
    @Column(name = "name") 
    private String name; 

    private String street; 
    private int houseNumber; 

    @Column(name = "email") 
    private String email; 
//... getters and setters 

} 

без гражданства EJB:

@Stateless 
public class ItemFacade implements Serializable { 

    /** 
    * 
    */ 
    private static final long serialVersionUID = 1L; 
    @PersistenceContext(unitName = "databaseName", type = PersistenceContextType.EXTENDED) 
    private EntityManager em; 
    @PersistenceUnit 
    private EntityManagerFactory emf; 

    public void create(User user) { 
     emf = Persistence.createEntityManagerFactory("databaseName"); 
     em = emf.createEntityManager(); 
     em.persist(user); 
    } 
} 

Управляемая боб:

@ManagedBean 
@RequestScoped 
public class UserBean implements Serializable { 
    private static final long serialVersionUID = 1L; 
    private User user = new User(); 
    @EJB 
    private ItemFacade itemFacade; 
    public void save(){ 
     itemFacade = new ItemFacade(); 
     itemFacade.create(this.user); 
    } 
    //.... 
} 

persistence.xml:

<?xml version="1.0" encoding="UTF-8"?> 
<persistence version="2.1" 
    xmlns="http://xmlns.jcp.org/xml/ns/persistence" 
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/persistence http://xmlns.jcp.org/xml/ns/persistence/persistence_2_1.xsd"> 
     <persistence-unit name="databaseName" > 
      <jta-data-source>TestDS</jta-data-source> 
     </persistence-unit> 
</persistence> 

И tomee.xml:

<?xml version="1.0" encoding="UTF-8"?> 
<tomee> 
    <!-- see http://tomee.apache.org/containers-and-resources.html --> 

    <!-- activate next line to be able to deploy applications in apps --> 
    <!-- <Deployments dir="apps" /> --> 
    <Resource id="TestDS" type="DataSource"> 
     JdbcDriver com.mysql.jdbc.Driver 
     JdbcUrl jdbc:mysql://localhost:3306/databaseName 
     UserName username 
     Password password 
     JtaManaged true 
    </Resource> 
</tomee> 

Но я получаю следующее исключение при попытке упорствовать пользователь:

Starting OpenJPA 2.4.0-nonfinal-1598334 
may 23, 2015 2:33:39 PM com.sun.faces.lifecycle.ApplyRequestValuesPhase execute 
ADVERTENCIA: <openjpa-2.4.0-nonfinal-1598334-r422266:1599166 fatal user error> org.apache.openjpa.persistence.ArgumentException: The persistence provider is attempting to use properties in the persistence.xml file to resolve the data source. A Java Database Connectivity (JDBC) driver or data source class name must be specified in the openjpa.ConnectionDriverName or javax.persistence.jdbc.driver property. The following properties are available in the configuration: "org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl@fdaf18ee". 
javax.el.ELException: <openjpa-2.4.0-nonfinal-1598334-r422266:1599166 fatal user error> org.apache.openjpa.persistence.ArgumentException: The persistence provider is attempting to use properties in the persistence.xml file to resolve the data source. A Java Database Connectivity (JDBC) driver or data source class name must be specified in the openjpa.ConnectionDriverName or javax.persistence.jdbc.driver property. The following properties are available in the configuration: "org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl@fdaf18ee". 
    at org.apache.el.parser.AstValue.invoke(AstValue.java:291) 
    at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:273) 
    at javax.faces.event.MethodExpressionActionListener.processAction(MethodExpressionActionListener.java:149) 
    at javax.faces.event.ActionEvent.processListener(ActionEvent.java:88) 
    at javax.faces.component.UIComponentBase.broadcast(UIComponentBase.java:813) 
    at javax.faces.component.UICommand.broadcast(UICommand.java:300) 
    at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790) 
    at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:931) 
    at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:78) 
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:101) 
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:198) 
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:646) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) 
    at org.primefaces.webapp.filter.FileUploadFilter.doFilter(FileUploadFilter.java:105) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) 
    at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) 
    at org.apache.tomee.catalina.OpenEJBValve.invoke(OpenEJBValve.java:44) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171) 
    at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) 
    at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950) 
    at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) 
    at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070) 
    at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611) 
    at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) 
    at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) 
    at java.lang.Thread.run(Thread.java:745) 
Caused by: <openjpa-2.4.0-nonfinal-1598334-r422266:1599166 fatal user error> org.apache.openjpa.persistence.ArgumentException: The persistence provider is attempting to use properties in the persistence.xml file to resolve the data source. A Java Database Connectivity (JDBC) driver or data source class name must be specified in the openjpa.ConnectionDriverName or javax.persistence.jdbc.driver property. The following properties are available in the configuration: "org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl@fdaf18ee". 
    at org.apache.openjpa.jdbc.schema.DataSourceFactory.newDataSource(DataSourceFactory.java:72) 
    at org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.createConnectionFactory(JDBCConfigurationImpl.java:849) 
    at org.apache.openjpa.jdbc.conf.JDBCConfigurationImpl.getDBDictionaryInstance(JDBCConfigurationImpl.java:602) 
    at org.apache.openjpa.jdbc.meta.MappingRepository.endConfiguration(MappingRepository.java:1518) 
    at org.apache.openjpa.lib.conf.Configurations.configureInstance(Configurations.java:535) 
    at org.apache.openjpa.lib.conf.Configurations.configureInstance(Configurations.java:460) 
    at org.apache.openjpa.lib.conf.PluginValue.instantiate(PluginValue.java:121) 
    at org.apache.openjpa.conf.MetaDataRepositoryValue.instantiate(MetaDataRepositoryValue.java:68) 
    at org.apache.openjpa.lib.conf.ObjectValue.instantiate(ObjectValue.java:83) 
    at org.apache.openjpa.conf.OpenJPAConfigurationImpl.newMetaDataRepositoryInstance(OpenJPAConfigurationImpl.java:967) 
    at org.apache.openjpa.conf.OpenJPAConfigurationImpl.getMetaDataRepositoryInstance(OpenJPAConfigurationImpl.java:958) 
    at org.apache.openjpa.kernel.AbstractBrokerFactory.makeReadOnly(AbstractBrokerFactory.java:642) 
    at org.apache.openjpa.kernel.AbstractBrokerFactory.newBroker(AbstractBrokerFactory.java:202) 
    at org.apache.openjpa.kernel.DelegatingBrokerFactory.newBroker(DelegatingBrokerFactory.java:155) 
    at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:226) 
    at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:153) 
    at org.apache.openjpa.persistence.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:59) 
    at manager.ItemFacade.create(ItemFacade.java:35) 
    at views.UserBean.save(UserWizard.java:48) 
    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:606) 
    at org.apache.el.parser.AstValue.invoke(AstValue.java:278) 
    ... 34 more 

Как я могу решить это?

Answer 1

Ваш EJB неправильно, расширенный для отслеживания состояния только и так как вы получаете впрыскиваетесь менеджер сущности Dont вызова Постоянства и не использовать в EntityManagerFactory:

@Stateless 
public class ItemFacade { 
    @PersistenceContext(unitName = "databaseName") 
    private EntityManager em; 

    public void create(User user) { 
     em.persist(user); 
    } 
}