org.hibernate.service.UnknownServiceException：请求了未知服务 [org.hibernate.service.jdbc.connections.spi.ConnectionProvider]
org.hibernate.service.UnknownServiceException: Unknown service requested [org.hibernate.service.jdbc.connections.spi.ConnectionProvider]
我有一个简单的 Java EE 应用程序，它使用无状态 EJB 和持久性对象来对 table 执行查找。我可以使用 Hibernate 4.2 和 EJB 3.0 将我的应用程序成功部署到 WebLogic 10.3，但是当我 运行 它时，我在我尝试使用 EntityManagerFactory 来创建 EntityManager 实例的代码行中收到 UnknownServiceException。 （我首先尝试简单地注入一个抛出 NullPointerException 的 EntityManager）。
无状态 EJB
@Stateless
public class OrderLocatorBean implements OrderLocator
{
@PersistenceUnit
private EntityManagerFactory entityManagerFactory;
public List<Order> getOrdersByDate(Date start, Date end)
{
EntityManager em = this.entityManagerFactory.createEntityManager();
TypedQuery<Order> queryByDate = em.createNamedQuery("findByDate", Order.class);
queryByDate.setParameter("startdate", start);
queryByDate.setParameter("enddate", end);
List<Order> results = queryByDate.getResultList();
em.close();
return results;
}
}
EJB 打包在 order.jar 中，包含在 ear 文件中。这是它的 ejb-jar.xml 文件。
<?xml version="1.0" encoding="UTF-8"?>
<ejb-jar
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/ejb-jar_3_0.xsd"
version="3.0"
>
<enterprise-beans>
<session>
<ejb-name>OrderLocatorBean</ejb-name>
<transaction-type>Container</transaction-type>
</session>
</enterprise-beans>
</ejb-jar>
这是我的 persistence.xml 文件打包在 order.jar 的 META-INF 目录中：
<?xml version="1.0"?>
<persistence
xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
version="2.0"
>
<persistence-unit name="Order" transaction-type="JTA">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>contexte-datasource</jta-data-source>
<class>order.Order</class>
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.Oracle10gDialect"/>
</properties>
</persistence-unit>
</persistence>
这是 EJB 抛出的异常（最后一部分）：
Caused by: org.hibernate.service.UnknownServiceException: Unknown service requested [org.hibernate.service.jdbc.connections.spi.ConnectionProvider]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:151)
at org.hibernate.internal.AbstractSessionImpl.getJdbcConnectionAccess(AbstractSessionImpl.java:262)
at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.<init>(JdbcCoordinatorImpl.java:106)
at org.hibernate.engine.transaction.internal.TransactionCoordinatorImpl.<init>(TransactionCoordinatorImpl.java:90)
at org.hibernate.internal.SessionImpl.<init>(SessionImpl.java:254)
at org.hibernate.internal.SessionFactoryImpl$SessionBuilderImpl.openSession(SessionFactoryImpl.java:1618)
at org.hibernate.ejb.EntityManagerImpl.getRawSession(EntityManagerImpl.java:121)
at org.hibernate.ejb.EntityManagerImpl.getSession(EntityManagerImpl.java:97)
at org.hibernate.ejb.AbstractEntityManagerImpl.joinTransaction(AbstractEntityManagerImpl.java:1207)
at org.hibernate.ejb.AbstractEntityManagerImpl.postInit(AbstractEntityManagerImpl.java:178)
at org.hibernate.ejb.EntityManagerImpl.<init>(EntityManagerImpl.java:89)
at org.hibernate.ejb.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:193)
at org.hibernate.ejb.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:188)
at sun.reflect.GeneratedMethodAccessor589.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at weblogic.deployment.EntityManagerFactoryProxyImpl.invoke(EntityManagerFactoryProxyImpl.java:96)
at $Proxy238.createEntityManager(Unknown Source)
at order.OrderLocatorBean.getOrdersByDate(OrderLocatorBean.java:40)
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 com.bea.core.repackaged.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:310)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at com.oracle.pitchfork.spi.MethodInvocationVisitorImpl.visit(MethodInvocationVisitorImpl.java:34)
at weblogic.ejb.container.injection.EnvironmentInterceptorCallbackImpl.callback(EnvironmentInterceptorCallbackImpl.java:54)
at com.oracle.pitchfork.spi.EnvironmentInterceptor.invoke(EnvironmentInterceptor.java:42)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at com.bea.core.repackaged.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at com.bea.core.repackaged.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at $Proxy244.getOrdersByDate(Unknown Source)
at order.OrderLocatorBean_43jnw0_OrderLocatorImpl.__WL_invoke(Unknown Source)
at weblogic.ejb.container.internal.SessionLocalMethodInvoker.invoke(SessionLocalMethodInvoker.java:39)
... 58 more
我可以通过设置休眠配置 属性 hibernate.transaction.factory_class 来解决这个问题。请参阅此处的文档：
http://docs.jboss.org/hibernate/orm/4.2/manual/en-US/html_single/#transactions-demarcation-jta
http://docs.jboss.org/hibernate/orm/4.2/manual/en-US/html_single/#configuration-optional-dialects
我查看了 hibernate 源代码，虽然我不能完全查明确切原因，但我可以看到一些初始化失败。看起来 weblogic（也许还有其他）服务器 hibernate 需要知道如何创建 JTA 事务。我的更新文件如下。
persistence.xml
<?xml version="1.0"?>
<persistence
xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
version="2.0"
>
<persistence-unit name="Order" transaction-type="JTA">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>contexte-datasource</jta-data-source>
<class>order.Order</class>
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.Oracle10gDialect"/>
<property name="hibernate.transaction.factory_class" value="org.hibernate.transaction.JTATransactionFactory"/>
</properties>
</persistence-unit>
</persistence>
无状态 EJB
@Stateless
public class OrderLocatorBean implements OrderLocator
{
@PersistenceContext
private EntityManager entityManager;
public List<Order> getOrdersByDate(Date start, Date end)
{
TypedQuery<Order> queryByDate = this.entityManager.createNamedQuery("findByDate", Order.class);
queryByDate.setParameter("startdate", start);
queryByDate.setParameter("enddate", end);
List<Order> results = queryByDate.getResultList();
return results;
}
}
我有一个简单的 Java EE 应用程序，它使用无状态 EJB 和持久性对象来对 table 执行查找。我可以使用 Hibernate 4.2 和 EJB 3.0 将我的应用程序成功部署到 WebLogic 10.3，但是当我 运行 它时，我在我尝试使用 EntityManagerFactory 来创建 EntityManager 实例的代码行中收到 UnknownServiceException。 （我首先尝试简单地注入一个抛出 NullPointerException 的 EntityManager）。
无状态 EJB
@Stateless
public class OrderLocatorBean implements OrderLocator
{
@PersistenceUnit
private EntityManagerFactory entityManagerFactory;
public List<Order> getOrdersByDate(Date start, Date end)
{
EntityManager em = this.entityManagerFactory.createEntityManager();
TypedQuery<Order> queryByDate = em.createNamedQuery("findByDate", Order.class);
queryByDate.setParameter("startdate", start);
queryByDate.setParameter("enddate", end);
List<Order> results = queryByDate.getResultList();
em.close();
return results;
}
}
EJB 打包在 order.jar 中，包含在 ear 文件中。这是它的 ejb-jar.xml 文件。
<?xml version="1.0" encoding="UTF-8"?>
<ejb-jar
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/ejb-jar_3_0.xsd"
version="3.0"
>
<enterprise-beans>
<session>
<ejb-name>OrderLocatorBean</ejb-name>
<transaction-type>Container</transaction-type>
</session>
</enterprise-beans>
</ejb-jar>
这是我的 persistence.xml 文件打包在 order.jar 的 META-INF 目录中：
<?xml version="1.0"?>
<persistence
xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
version="2.0"
>
<persistence-unit name="Order" transaction-type="JTA">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>contexte-datasource</jta-data-source>
<class>order.Order</class>
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.Oracle10gDialect"/>
</properties>
</persistence-unit>
</persistence>
这是 EJB 抛出的异常（最后一部分）：
Caused by: org.hibernate.service.UnknownServiceException: Unknown service requested [org.hibernate.service.jdbc.connections.spi.ConnectionProvider]
at org.hibernate.service.internal.AbstractServiceRegistryImpl.getService(AbstractServiceRegistryImpl.java:151)
at org.hibernate.internal.AbstractSessionImpl.getJdbcConnectionAccess(AbstractSessionImpl.java:262)
at org.hibernate.engine.jdbc.internal.JdbcCoordinatorImpl.<init>(JdbcCoordinatorImpl.java:106)
at org.hibernate.engine.transaction.internal.TransactionCoordinatorImpl.<init>(TransactionCoordinatorImpl.java:90)
at org.hibernate.internal.SessionImpl.<init>(SessionImpl.java:254)
at org.hibernate.internal.SessionFactoryImpl$SessionBuilderImpl.openSession(SessionFactoryImpl.java:1618)
at org.hibernate.ejb.EntityManagerImpl.getRawSession(EntityManagerImpl.java:121)
at org.hibernate.ejb.EntityManagerImpl.getSession(EntityManagerImpl.java:97)
at org.hibernate.ejb.AbstractEntityManagerImpl.joinTransaction(AbstractEntityManagerImpl.java:1207)
at org.hibernate.ejb.AbstractEntityManagerImpl.postInit(AbstractEntityManagerImpl.java:178)
at org.hibernate.ejb.EntityManagerImpl.<init>(EntityManagerImpl.java:89)
at org.hibernate.ejb.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:193)
at org.hibernate.ejb.EntityManagerFactoryImpl.createEntityManager(EntityManagerFactoryImpl.java:188)
at sun.reflect.GeneratedMethodAccessor589.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at weblogic.deployment.EntityManagerFactoryProxyImpl.invoke(EntityManagerFactoryProxyImpl.java:96)
at $Proxy238.createEntityManager(Unknown Source)
at order.OrderLocatorBean.getOrdersByDate(OrderLocatorBean.java:40)
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 com.bea.core.repackaged.springframework.aop.support.AopUtils.invokeJoinpointUsingReflection(AopUtils.java:310)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.invokeJoinpoint(ReflectiveMethodInvocation.java:182)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:149)
at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at com.oracle.pitchfork.spi.MethodInvocationVisitorImpl.visit(MethodInvocationVisitorImpl.java:34)
at weblogic.ejb.container.injection.EnvironmentInterceptorCallbackImpl.callback(EnvironmentInterceptorCallbackImpl.java:54)
at com.oracle.pitchfork.spi.EnvironmentInterceptor.invoke(EnvironmentInterceptor.java:42)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at com.bea.core.repackaged.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:89)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:131)
at com.bea.core.repackaged.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:119)
at com.bea.core.repackaged.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:171)
at com.bea.core.repackaged.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:204)
at $Proxy244.getOrdersByDate(Unknown Source)
at order.OrderLocatorBean_43jnw0_OrderLocatorImpl.__WL_invoke(Unknown Source)
at weblogic.ejb.container.internal.SessionLocalMethodInvoker.invoke(SessionLocalMethodInvoker.java:39)
... 58 more
我可以通过设置休眠配置 属性 hibernate.transaction.factory_class 来解决这个问题。请参阅此处的文档：
http://docs.jboss.org/hibernate/orm/4.2/manual/en-US/html_single/#transactions-demarcation-jta http://docs.jboss.org/hibernate/orm/4.2/manual/en-US/html_single/#configuration-optional-dialects
我查看了 hibernate 源代码，虽然我不能完全查明确切原因，但我可以看到一些初始化失败。看起来 weblogic（也许还有其他）服务器 hibernate 需要知道如何创建 JTA 事务。我的更新文件如下。
persistence.xml
<?xml version="1.0"?>
<persistence
xmlns="http://java.sun.com/xml/ns/persistence"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/persistence http://java.sun.com/xml/ns/persistence/persistence_2_0.xsd"
version="2.0"
>
<persistence-unit name="Order" transaction-type="JTA">
<provider>org.hibernate.ejb.HibernatePersistence</provider>
<jta-data-source>contexte-datasource</jta-data-source>
<class>order.Order</class>
<properties>
<property name="hibernate.dialect" value="org.hibernate.dialect.Oracle10gDialect"/>
<property name="hibernate.transaction.factory_class" value="org.hibernate.transaction.JTATransactionFactory"/>
</properties>
</persistence-unit>
</persistence>
无状态 EJB
@Stateless
public class OrderLocatorBean implements OrderLocator
{
@PersistenceContext
private EntityManager entityManager;
public List<Order> getOrdersByDate(Date start, Date end)
{
TypedQuery<Order> queryByDate = this.entityManager.createNamedQuery("findByDate", Order.class);
queryByDate.setParameter("startdate", start);
queryByDate.setParameter("enddate", end);
List<Order> results = queryByDate.getResultList();
return results;
}
}