我有一个像EntityManager这样的bean定义：
@Stateless public class JPABean<T> { private static final Logger LOG = Logger.getLogger(JPABean.class); @PersistenceContext(unitName = "myPersistanceSettings") private EntityManager em; public void write(T o) { LOG.info("PERSISTING"); em.persist(o); LOG.info("FLASHING"); em.flush(); LOG.info("SUCCESS"); }
我的persistance.xml
<persistence-unit name="eSystemJPA" transaction-type="JTA" > <provider>org.hibernate.ejb.HibernatePersistence</provider> <jta-data-source>java:jboss/datasources/myDS</jta-data-source> <properties> <property name="hibernate.show_sql" value="true" /> <property name="hibernate.hbm2ddl.auto" value="validate" /> <property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQLDialect"/> <property name="hibernate.transaction.jta.platform" value="org.hibernate.service.jta.platform.internal.JBossAppServerJtaPlatform" /> </properties> </persistence-unit>
我的API：
@Path("activityAPI") public class ActivityAPI { private static final Logger log = Logger.getLogger(ActivityAPI.class); @EJB private JPABean<ActivityLogEntry> activityJpa; @POST @Consumes(MediaType.APPLICATION_JSON) @Produces(MediaType.APPLICATION_JSON) public Response reportActivity(@Context HttpServletRequest hsr, final ActivityAPIRequest body) { ...
我的standalone.xml与数据源：
<datasource jta="true" jndi-name="java:jboss/datasources/myDS" pool-name="PostgrePool" enabled="true" spy="true" use-ccm="false"> <connection-url>jdbc:postgresql://localhost/postgres</connection-url> <driver>postgres</driver> <pool> <min-pool-size>10</min-pool-size> <max-pool-size>100</max-pool-size> <prefill>true</prefill> </pool> <security> <user-name>postgres</user-name> <password>postgres</password> </security> <validation> <validate-on-match>false</validate-on-match> <background-validation>false</background-validation> </validation> <statement> <share-prepared-statements>false</share-prepared-statements> </statement> </datasource>
我正在收到：
2015-03-11 17:48:39,945 INFO [JPABean.write]: PERSISTING 2015-03-11 17:48:39,946 INFO [AbstractLoggingWriter.write]: INFO [JPABean.write]: PERSISTING 2015-03-11 17:48:39,946 DEBUG [TransactionCoordinatorImpl.attemptToRegisterJtaSync]: Skipping JTA sync registration due to auto join checking 2015-03-11 17:48:39,946 INFO [AbstractLoggingWriter.write]: DEBUG [TransactionCoordinatorImpl.attemptToRegisterJtaSync]: Skipping JTA sync registration due to auto join checking 2015-03-11 17:48:39,947 DEBUG [TransactionCoordinatorImpl.attemptToRegisterJtaSync]: successfully registered Synchronization 2015-03-11 17:48:39,947 INFO [AbstractLoggingWriter.write]: DEBUG [TransactionCoordinatorImpl.attemptToRegisterJtaSync]: successfully registered Synchronization 2015-03-11 17:48:39,947 DEBUG [AbstractEntityManagerImpl.joinTransaction]: Looking for a JTA transaction to join 2015-03-11 17:48:39,947 INFO [AbstractLoggingWriter.write]: DEBUG [AbstractEntityManagerImpl.joinTransaction]: Looking for a JTA transaction to join 2015-03-11 17:48:39,948 INFO [AbstractLoggingWriter.write]: Hibernate: select nextval ('hibernate_sequence') 2015-03-11 17:48:39,949 DEBUG [LogicalConnectionImpl.obtainConnection]: Obtaining JDBC connection 2015-03-11 17:48:39,949 INFO [AbstractLoggingWriter.write]: DEBUG [LogicalConnectionImpl.obtainConnection]: Obtaining JDBC connection 2015-03-11 17:48:39,950 DEBUG [LogicalConnectionImpl.obtainConnection]: Obtained JDBC connection 2015-03-11 17:48:39,950 INFO [AbstractLoggingWriter.write]: DEBUG [LogicalConnectionImpl.obtainConnection]: Obtained JDBC connection 2015-03-11 17:48:39,952 DEBUG [LogicalConnectionImpl.releaseConnection]: Releasing JDBC connection 2015-03-11 17:48:39,952 INFO [AbstractLoggingWriter.write]: DEBUG [LogicalConnectionImpl.releaseConnection]: Releasing JDBC connection 2015-03-11 17:48:39,953 DEBUG [LogicalConnectionImpl.releaseConnection]: Released JDBC connection 2015-03-11 17:48:39,953 INFO [AbstractLoggingWriter.write]: DEBUG [LogicalConnectionImpl.releaseConnection]: Released JDBC connection 2015-03-11 17:48:39,954 INFO [JPABean.write]: FLASHING 2015-03-11 17:48:39,955 INFO [AbstractLoggingWriter.write]: INFO [JPABean.write]: FLASHING 2015-03-11 17:48:39,957 INFO [AbstractLoggingWriter.write]: DEBUG [ActivityAPI.reportActivity]: POST Received PUT reportActivity 2015-03-11 17:48:39,957 DEBUG [EntityPrinter.toString]: Listing entities: 2015-03-11 17:48:39,957 INFO [AbstractLoggingWriter.write]: DEBUG [EntityPrinter.toString]: Listing entities: 2015-03-11 17:48:39,958 DEBUG [EntityPrinter.toString]: ActivityLogEntry{... body ...} 2015-03-11 17:48:39,958 INFO [AbstractLoggingWriter.write]: DEBUG [EntityPrinter.toString]: ActivityLogEntry{... body ...} 2015-03-11 17:48:39,959 INFO [JPABean.write]: PERSISTING 2015-03-11 17:48:39,959 INFO [AbstractLoggingWriter.write]: INFO [JPABean.write]: PERSISTING 2015-03-11 17:48:39,962 INFO [AbstractLoggingWriter.write]: Hibernate: insert into activity_log_entry (all columns) values (?, ?, ?, ?, ?, ?, ?, ?, ?)
因此，实际上存在将2个实体持久（插入）到表中的问题。我试图在我的公共写作方法和我的api上添加@Transactional批注，但是它不起作用。我也在尝试使用@TransactionAttribute（TransactionAttributeType.REQUIRED），但是仍然一样。同样，使用EntityManagerFactory创建entityManager也不起作用（文档说，entityManager不是线程安全的，但是EntityManagerFactory是线程安全的）。我在用着：
postgressql-9.3 jboss-ejb-api_3.2_spec jboss-servlet-api_3.1_spec resteasy- jaxrs hibernate-entitymanager hibernate-validator驱动程序postresql> 9.3-1102-jdbc41 wildfly 8.2或wildfly 8.0
来自hibernate的日志：
2015-03-11 17:53:39,947 WARN [SynchronizationCallbackCoordinatorTrackingImpl.afterCompletion]: HHH000451: Transaction afterCompletion called by a background thread; delaying afterCompletion processing until the original thread can handle it. [status=4]
从野蝇追踪
17:53:39,944 WARN [com.arjuna.ats.arjuna] (Transaction Reaper) ARJUNA012117: TransactionReaper::check timeout for TX 0:ffff7f000001:62455507:550071b3:35 in state RUN 17:53:39,945 WARN [com.arjuna.ats.arjuna] (Transaction Reaper Worker 0) ARJUNA012095: Abort of action id 0:ffff7f000001:62455507:550071b3:35 invoked while multiple threads active within it. 17:53:39,946 WARN [com.arjuna.ats.arjuna] (Transaction Reaper Worker 0) ARJUNA012108: CheckedAction::check - atomic action 0:ffff7f000001:62455507:550071b3:35 aborting with 1 threads active! 17:53:39,957 WARN [com.arjuna.ats.arjuna] (Transaction Reaper) ARJUNA012117: TransactionReaper::check timeout for TX 0:ffff7f000001:62455507:550071b3:3b in state RUN 17:53:40,445 WARN [com.arjuna.ats.arjuna] (Transaction Reaper) ARJUNA012117: TransactionReaper::check timeout for TX 0:ffff7f000001:62455507:550071b3:35 in state CANCEL 17:53:40,446 WARN [com.arjuna.ats.arjuna] (Transaction Reaper) ARJUNA012378: ReaperElement appears to be wedged: org.apache.log4j.AppenderSkeleton.doAppend(AppenderSkeleton.java:231) org.apache.log4j.JBossAppenderHandler.doPublish(JBossAppenderHandler.java:42) org.jboss.logmanager.ExtHandler.publish(ExtHandler.java:79) org.jboss.logmanager.LoggerNode.publish(LoggerNode.java:296) org.jboss.logmanager.LoggerNode.publish(LoggerNode.java:304) org.jboss.logmanager.LoggerNode.publish(LoggerNode.java:304) org.jboss.logmanager.LoggerNode.publish(LoggerNode.java:304) org.jboss.logmanager.LoggerNode.publish(LoggerNode.java:304) org.jboss.logmanager.LoggerNode.publish(LoggerNode.java:304) org.jboss.logmanager.LoggerNode.publish(LoggerNode.java:304) org.jboss.logmanager.LoggerNode.publish(LoggerNode.java:304) org.jboss.logmanager.Logger.logRaw(Logger.java:721) org.jboss.logmanager.Logger.log(Logger.java:672) org.jboss.logging.JBossLogManagerLogger.doLogf(JBossLogManagerLogger.java:50) org.jboss.logging.Logger.logf(Logger.java:2096) org.hibernate.internal.CoreMessageLogger_$logger.rollbackFromBackgroundThread(CoreMessageLogger_$logger.java:1032) org.hibernate.engine.transaction.synchronization.internal.SynchronizationCallbackCoordinatorTrackingImpl.afterCompletion(SynchronizationCallbackCoordinatorTrackingImpl.java:85) org.hibernate.engine.transaction.synchronization.internal.RegisteredSynchronization.afterCompletion(RegisteredSynchronization.java:56) com.arjuna.ats.internal.jta.resources.arjunacore.SynchronizationImple.afterCompletion(SynchronizationImple.java:96) com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.afterCompletion(TwoPhaseCoordinator.java:532) com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.afterCompletion(TwoPhaseCoordinator.java:463) com.arjuna.ats.arjuna.coordinator.TwoPhaseCoordinator.cancel(TwoPhaseCoordinator.java:118) com.arjuna.ats.arjuna.AtomicAction.cancel(AtomicAction.java:215) com.arjuna.ats.arjuna.coordinator.TransactionReaper.doCancellations(TransactionReaper.java:377) com.arjuna.ats.internal.arjuna.coordinator.ReaperWorkerThread.run(ReaperWorkerThread.java:78) 17:53:40,457 WARN [com.arjuna.ats.arjuna] (Transaction Reaper) ARJUNA012117: TransactionReaper::check timeout for TX 0:ffff7f000001:62455507:550071b3:3b in state SCHEDULE_CANCEL 17:53:40,947 WARN [com.arjuna.ats.arjuna] (Transaction Reaper) ARJUNA012117: TransactionReaper::check timeout for TX 0:ffff7f000001:62455507:550071b3:35 in state CANCEL_INTERRUPTED 17:53:40,948 WARN [com.arjuna.ats.arjuna] (Transaction Reaper) ARJUNA012120: TransactionReaper::check worker Thread[Transaction Reaper Worker 0,5,main] not responding to interrupt when cancelling TX 0:ffff7f000001:62455507:550071b3:35 -- worker marked as zombie and TX scheduled for mark-as-rollback 17:53:40,949 WARN [com.arjuna.ats.arjuna] (Transaction Reaper) ARJUNA012110: TransactionReaper::check successfuly marked TX 0:ffff7f000001:62455507:550071b3:35 as rollback only 17:53:40,948 WARN [com.arjuna.ats.arjuna] (Transaction Reaper Worker 1) ARJUNA012095: Abort of action id 0:ffff7f000001:62455507:550071b3:3b invoked while multiple threads active within it. 17:53:40,949 WARN [com.arjuna.ats.arjuna] (Transaction Reaper Worker 1) ARJUNA012108: CheckedAction::check - atomic action 0:ffff7f000001:62455507:550071b3:3b aborting with 1 threads active! 17:53:40,949 WARN [com.arjuna.ats.arjuna] (Transaction Reaper Worker 1) ARJUNA012121: TransactionReaper::doCancellations worker Thread[Transaction Reaper Worker 1,5,main] successfully canceled TX 0:ffff7f000001:62455507:550071b3:3b
我还看到在postgressql中我的事务处于空闲状态：
"idle in transaction";"select nextval ('hibernate_sequence')" "idle in transaction";"select nextval ('hibernate_sequence')"
每个建议对我都会非常有帮助:)
org.apache.log4j.JBossAppenderHandler.doPublish(JBossAppenderHandler.java:42)
这行对我来说毫无意义，但是最近我发现了含义……我的项目结构为 WebContent / META-INF 文件夹中的log4j.xml，并且我使用的是 org.jboss.logging.Logger 。不幸的是，我没有收到任何错误，但此文件的位置错误。如文档所述：https : //docs.jboss.org/process- guide/en/html/logging.html
log4j配置是从jboss服务器的 conf / log4j.xml 文件中加载的。
我知道这个问题与 org.apache.log4j.ConsoleAppender 完全相关。删除之后，我现在对多线程没有任何问题，也不需要任何注释，因为@TransactionalAttribute（）已根据需要设置为默认值。此外，即使EntityManager不是线程安全的，也无需使用EntityManagerFactory。
