我的JBoss服务器上的Hibernate配置有问题。我使用两个配置粘贴hibernate.cfg.xml，旧的有效，而新的无效。一切似乎都没问题，但我仍然得到日志显示的错误。
Hibernate.cfg.xml:
<session-factory>
<!-- Database connection settings -->
<!-- New but not working configuration -->
<property name="connection.datasource">java:/App/TimerDS</property>
<!-- Old configuration -->
<!-- property name="connection.driver_class">com.mysql.jdbc.Driver</property>
<property name="connection.url">jdbc:mysql://localhost:3306/app</property>
<property name="connection.username">user</property>
<property name="connection.password">password</property -->
<!-- JDBC connection pool (use the built-in) -->
<property name="connection.pool_size">1</property>
<!-- SQL dialect -->
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<!-- Disable the second-level cache -->
<!--property name="cache.provider_class">org.hibernate.cache.internal.NoCacheProvider</property-->
<!-- Echo all executed SQL to stdout -->
<property name="show_sql">true</property>
<!-- validate / create / update / create-drop -->
<property name="hbm2ddl.auto">validate</property>
<mapping resource="com/icarer/timer/model/models.hbm.xml"/>
</session-factory>
Log
14:36:01,559 ERROR [com.icarer.timer.messaging.eventstore.EventStoreChangesHandlerImpl] (EJB default - 2) Error while executing getChanges() from EventHandler : org.hibernate.TransactionException: commit failed
at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:187) [hibernate-core-4.3.9.Final.jar:4.3.9.Final]
at com.icarer.timer.messaging.eventstore.EventStoreChangesHandlerImpl.getChanges(EventStoreChangesHandlerImpl.java:96) [classes:]
at com.icarer.timer.concrete.ListenerServiceImpl.listen(ListenerServiceImpl.java:46) [classes:]
at com.icarer.timer.Timer.doWorkListener(Timer.java:36) [classes:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.8.0_45]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) [rt.jar:1.8.0_45]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.8.0_45]
at java.lang.reflect.Method.invoke(Method.java:497) [rt.jar:1.8.0_45]
at org.jboss.as.ee.component.ManagedReferenceMethodInterceptor.processInvocation(ManagedReferenceMethodInterceptor.java:52) [jboss-as-ee-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:61) [jboss-as-ee-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.invocation.WeavedInterceptor.processInvocation(WeavedInterceptor.java:53) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ee.component.interceptors.UserInterceptorFactory$1.processInvocation(UserInterceptorFactory.java:61) [jboss-as-ee-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ejb3.component.invocationmetrics.ExecutionTimeInterceptor.processInvocation(ExecutionTimeInterceptor.java:43) [jboss-as-ejb3-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.invocation.InterceptorContext$Invocation.proceed(InterceptorContext.java:374) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ejb3.concurrency.ContainerManagedConcurrencyInterceptor.processInvocation(ContainerManagedConcurrencyInterceptor.java:104) [jboss-as-ejb3-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.invocation.InitialInterceptor.processInvocation(InitialInterceptor.java:21) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ee.component.interceptors.ComponentDispatcherInterceptor.processInvocation(ComponentDispatcherInterceptor.java:53) [jboss-as-ee-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ejb3.component.singleton.SingletonComponentInstanceAssociationInterceptor.processInvocation(SingletonComponentInstanceAssociationInterceptor.java:52) [jboss-as-ejb3-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInOurTx(CMTTxInterceptor.java:280) [jboss-as-ejb3-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.required(CMTTxInterceptor.java:345) [jboss-as-ejb3-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:243) [jboss-as-ejb3-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41) [jboss-as-ejb3-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ejb3.component.interceptors.ShutDownInterceptorFactory$1.processInvocation(ShutDownInterceptorFactory.java:64) [jboss-as-ejb3-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50) [jboss-as-ee-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ejb3.component.interceptors.AdditionalSetupInterceptor.processInvocation(AdditionalSetupInterceptor.java:55) [jboss-as-ejb3-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ee.component.TCCLInterceptor.processInvocation(TCCLInterceptor.java:45) [jboss-as-ee-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:288) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61) [jboss-invocation-1.1.2.Final-redhat-1.jar:1.1.2.Final-redhat-1]
at org.jboss.as.ejb3.timerservice.TimedObjectInvokerImpl.callTimeout(TimedObjectInvokerImpl.java:101) [jboss-as-ejb3-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.as.ejb3.timerservice.task.CalendarTimerTask.callTimeout(CalendarTimerTask.java:61) [jboss-as-ejb3-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at org.jboss.as.ejb3.timerservice.task.TimerTask.run(TimerTask.java:159) [jboss-as-ejb3-7.5.0.Final-redhat-21.jar:7.5.0.Final-redhat-21]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [rt.jar:1.8.0_45]
at java.util.concurrent.FutureTask.run(FutureTask.java:266) [rt.jar:1.8.0_45]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [rt.jar:1.8.0_45]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [rt.jar:1.8.0_45]
at java.lang.Thread.run(Thread.java:745) [rt.jar:1.8.0_45]
at org.jboss.threads.JBossThread.run(JBossThread.java:122)
Caused by: org.hibernate.TransactionException: unable to commit against JDBC connection
at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.doCommit(JdbcTransaction.java:116) [hibernate-core-4.3.9.Final.jar:4.3.9.Final]
at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:180) [hibernate-core-4.3.9.Final.jar:4.3.9.Final]
... 51 more
Caused by: java.sql.SQLException: You cannot commit during a managed transaction!
at org.jboss.jca.adapters.jdbc.BaseWrapperManagedConnection.jdbcCommit(BaseWrapperManagedConnection.java:1068)
at org.jboss.jca.adapters.jdbc.WrappedConnection.commit(WrappedConnection.java:758)
at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.doCommit(JdbcTransaction.java:112) [hibernate-core-4.3.9.Final.jar:4.3.9.Final]
... 52 more