Spring Scheduler和事务管理

时间：2018-03-29 10:18:45

标签： spring spring-data-jpa spring-transactions spring-scheduled

我有一个AggService的Spring启动应用，其中我正在尝试保存Agg的列表，其下方映射到Resource。我没有在服务中修改Resource中的任何内容。此服务标有Spring的Scheduled注释。也可以通过Rest端点调用相同的服务。

问题

如果通过rest端点调用服务，它运行正常。当Scheduler启动相同的服务时，我得到以下异常。

注意事项

  • 到目前为止，我没有使用任何交易管理。
  • 由于我没有在此服务中修改Resource，因此我可以删除CascadeType.All。但是我想知道它在通过端点调用时运行正常但在通过Spring Scheduler运行时没有运行的原因。

有人可以帮助我了解最新情况吗？是否应在使用计划时启用事务管理？

Agg Entity 

@Entity
@Table(name = "agg_name")
public class Agg {

    @Id
    @SequenceGenerator(name = "seq-gen", sequenceName = "agg_seq")
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "seq-gen")
    @Column(name = "id")
    private int id;

    @ManyToOne(fetch = FetchType.LAZY, cascade = { CascadeType.ALL })
    @JoinColumn(name = "resource_id")
    private Resource resource;

    ... 

}

资源实体

@Entity
@Table(name = "resource_table")
public class Resource {

    @Id
    @SequenceGenerator(name = "seq-gen", sequenceName = "resource_seq")
    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "seq-gen")
    @Column(name = "id")
    private int id;

    @OneToMany(fetch = FetchType.LAZY, mappedBy = "resource")
    private List<Agg> aggs;

    ... 
    }

AggService 

@Service
public class AggService {

    @Autowired
    private AggRepository aggRepository;

    @Scheduled(cron = "cron_expression")
    public void cPh(){
    List<Agg> aggList; // This list of Agg is being saved in line 150

    aggRepository.save(aggList); //line 150. Exception is thrown when trying to save

    }
}

调度程序调用服务时的Stacktrace 

ERROR 8 --- [pool-2-thread-1] o.s.s.s.TaskUtils$LoggingErrorHandler    : Unexpected error occurred in scheduled task. 
  org.springframework.dao.InvalidDataAccessApiUsageException: detached entity passed to persist: c.g.r.e.Resource; nested exception is org.hibernate.PersistentObjectException: detached entity passed to persist: c.g.r.e.Resource 
    at org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:299) ~[spring-orm-4.3.10.RELEASE.jar!/:4.3.10.RELEASE] 
    at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:244) ~[spring-orm-4.3.10.RELEASE.jar!/:4.3.10.RELEASE] 
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:488) ~[spring-orm-4.3.10.RELEASE.jar!/:4.3.10.RELEASE] 
    at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:59) ~[spring-tx-4.3.10.RELEASE.jar!/:4.3.10.RELEASE] 
    at org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:213) ~[spring-tx-4.3.10.RELEASE.jar!/:4.3.10.RELEASE] 
    at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:147) ~[spring-tx-4.3.10.RELEASE.jar!/:4.3.10.RELEASE] 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.10.RELEASE.jar!/:4.3.10.RELEASE] 
    at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:133) ~[spring-data-jpa-1.11.6.RELEASE.jar!/:na] 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.10.RELEASE.jar!/:4.3.10.RELEASE] 
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) ~[spring-aop-4.3.10.RELEASE.jar!/:4.3.10.RELEASE] 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.10.RELEASE.jar!/:4.3.10.RELEASE] 
    at org.springframework.data.repository.core.support.SurroundingTransactionDetectorMethodInterceptor.invoke(SurroundingTransactionDetectorMethodInterceptor.java:57) ~[spring-data-commons-1.13.6.RELEASE.jar!/:na] 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.10.RELEASE.jar!/:4.3.10.RELEASE] 
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:213) ~[spring-aop-4.3.10.RELEASE.jar!/:4.3.10.RELEASE] 
    at com.sun.proxy.$Proxy90.save(Unknown Source) ~[na:na] 
    at c.g.r.i.jobs.AggService.cPh(AggService.java:150) ~[classes!/:0.0.1-SNAPSHOT] 
    at c.g.r.i.jobs.AggService.lambda$cBs$1(AggService.java:199) ~[classes!/:0.0.1-SNAPSHOT] 
    at java.util.HashMap$Values.forEach(HashMap.java:981) ~[na:1.8.0_161] 
    at c.g.r.i.jobs.AggService.cDs(AggService.java:197) ~[classes!/:0.0.1-SNAPSHOT] 
    at c.g.r.i.jobs.AggService.cPs(AggService.java:95) ~[classes!/:0.0.1-SNAPSHOT] 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_161] 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_161] 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_161] 
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_161] 
    at org.springframework.scheduling.support.ScheduledMethodRunnable.run(ScheduledMethodRunnable.java:65) ~[spring-context-4.3.10.RELEASE.jar!/:4.3.10.RELEASE] 
    at org.springframework.scheduling.support.DelegatingErrorHandlingRunnable.run(DelegatingErrorHandlingRunnable.java:54) ~[spring-context-4.3.10.RELEASE.jar!/:4.3.10.RELEASE] 
    at org.springframework.scheduling.concurrent.ReschedulingRunnable.run(ReschedulingRunnable.java:81) [spring-context-4.3.10.RELEASE.jar!/:4.3.10.RELEASE] 
    at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_161] 
    at java.util.concurrent.FutureTask.run(FutureTask.java:266) [na:1.8.0_161] 
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180) [na:1.8.0_161] 
    at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293) [na:1.8.0_161] 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_161] 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_161] 
    at java.lang.Thread.run(Thread.java:748) [na:1.8.0_161] 
 Caused by: org.hibernate.PersistentObjectException: detached entity passed to persist: c.g.r.e.Resource 
    at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:124) ~[hibernate-core-5.0.12.Final.jar!/:5.0.12.Final] 
    at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:765) ~[hibernate-core-5.0.12.Final.jar!/:5.0.12.Final] 
    at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:758) ~[hibernate-core-5.0.12.Final.jar!/:5.0.12.Final] 
    at org.hibernate.jpa.event.internal.core.JpaPersistEventListener$1.cascade(JpaPersistEventListener.java:80) ~[hibernate-entitymanager-5.0.12.Final.jar!/:5.0.12.Final] 
    at org.hibernate.engine.internal.Cascade.cascadeToOne(Cascade.java:398) ~[hibernate-core-5.0.12.Final.jar!/:5.0.12.Final] 
    at org.hibernate.engine.internal.Cascade.cascadeAssociation(Cascade.java:323) ~[hibernate-core-5.0.12.Final.jar!/:5.0.12.Final] 
    at org.hibernate.engine.internal.Cascade.cascadeProperty(Cascade.java:162) ~[hibernate-core-5.0.12.Final.jar!/:5.0.12.Final] 
    at org.hibernate.engine.internal.Cascade.cascade(Cascade.java:111) ~[hibernate-core-5.0.12.Final.jar!/:5.0.12.Final] 
    at org.hibernate.event.internal.AbstractSaveEventListener.cascadeBeforeSave(AbstractSaveEventListener.java:425) ~[hibernate-core-5.0.12.Final.jar!/:5.0.12.Final] 
    at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:249) ~[hibernate-core-5.0.12.Final.jar!/:5.0.12.Final] 
    at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:178) ~[hibernate-core-5.0.12.Final.jar!/:5.0.12.Final] 
    at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:121) ~[hibernate-core-5.0.12.Final.jar!/:5.0.12.Final] 
    at org.hibernate.jpa.event.internal.core.JpaPersistEventListener.saveWithGeneratedId(JpaPersistEventListener.java:67) ~[hibernate-entitymanager-5.0.12.Final.jar!/:5.0.12.Final] 
    at org.hibernate.event.internal.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:189) ~[hibernate-core-5.0.12.Final.jar!/:5.0.12.Final] 
    at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:132) ~[hibernate-core-5.0.12.Final.jar!/:5.0.12.Final] 
    at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:58) ~[hibernate-core-5.0.12.Final.jar!/:5.0.12.Final] 
    at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:775) ~[hibernate-core-5.0.12.Final.jar!/:5.0.12.Final] 
    at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:748) ~[hibernate-core-5.0.12.Final.jar!/:5.0.12.Final] 
    at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:753) ~[hibernate-core-5.0.12.Final.jar!/:5.0.12.Final] 
    at org.hibernate.jpa.spi.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:1146) ~[hibernate-entitymanager-5.0.12.Final.jar!/:5.0.12.Final] 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_161] 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_161] 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_161] 
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_161] 
    at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:298) ~[spring-orm-4.3.10.RELEASE.jar!/:4.3.10.RELEASE] 
    at com.sun.proxy.$Proxy85.persist(Unknown Source) ~[na:na] 
    at org.springframework.data.jpa.repository.support.SimpleJpaRepository.save(SimpleJpaRepository.java:508) ~[spring-data-jpa-1.11.6.RELEASE.jar!/:na] 
    at org.springframework.data.jpa.repository.support.SimpleJpaRepository.save(SimpleJpaRepository.java:542) ~[spring-data-jpa-1.11.6.RELEASE.jar!/:na] 
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_161] 
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_161] 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_161] 
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_161] 
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.executeMethodOn(RepositoryFactorySupport.java:504) ~[spring-data-commons-1.13.6.RELEASE.jar!/:na] 
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:489) ~[spring-data-commons-1.13.6.RELEASE.jar!/:na] 
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:461) ~[spring-data-commons-1.13.6.RELEASE.jar!/:na] 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.10.RELEASE.jar!/:4.3.10.RELEASE] 
    at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:56) ~[spring-data-commons-1.13.6.RELEASE.jar!/:na] 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.10.RELEASE.jar!/:4.3.10.RELEASE] 
    at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99) ~[spring-tx-4.3.10.RELEASE.jar!/:4.3.10.RELEASE] 
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282) ~[spring-tx-4.3.10.RELEASE.jar!/:4.3.10.RELEASE] 
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96) ~[spring-tx-4.3.10.RELEASE.jar!/:4.3.10.RELEASE] 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) ~[spring-aop-4.3.10.RELEASE.jar!/:4.3.10.RELEASE] 
    at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136) ~[spring-tx-4.3.10.RELEASE.jar!/:4.3.10.RELEASE] 
    ... 28 common frames omitted

1 个答案:

答案 0 :(得分：0)

此处帖子中的答案 - https://stackoverflow.com/a/13500921/2600196可能对您有所帮助

它与双向一致性问题有关。

尝试在此实体类中使用CascadeType，您可能希望使用正确类型的级联

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