QueryDslJpaRepository.findAll批量更新從update [0]返回意外的行計數;實際行數：0;預期：1

我在生產環境中不時得到此異常，並且無法在本地重現。其他人有這個問題，但它發生在更新或刪除。QueryDslJpaRepository.findAll批量更新從update [0]返回意外的行計數;實際行數：0;預期：1

我有一個監聽器類映射到prePersist（）上的Tag類，確保用戶沒有保存超過x個標籤。

標籤類：

@Entity 
    @EntityListeners({ TagListener.class }) 
    public class Tag extends AbstractEntity { 

    ... 
    }

的TagService級撲救標籤的對象。

@Service 
public class TagService extends AbstractService<Tag> { 

public Tag saveTagForUser(AbstractEntity entity, User user) { 
... 
return save(tag);  

}

的TagListener當標籤對象保存和刪除一些他們，如果這是必要的監聽。

@Component 
public class TagListener { 

    @Autowired 
    private TagService tagService; 

    /** 
    * Autowires this component's bean injections. 
    */ 
    private void autowire() { 
     if (tagService == null) { 
      ApplicationContextProvider.getApplicationContext().getAutowireCapableBeanFactory().autowireBean(this); 
     } 
    } 

    @PrePersist 
    public void prePersist(Tag tag) { 
     autowire(); 
     if (tagService.listUserTags(tag.getUser()).size() > Constants.Tags.maxPerUser) { 
      tagService.deleteAllUserTagsNotInTopN(tag.getUser(), Constants.Tag.maxPerUser); 
     } 
    } 
}

注意，拋出異常的listUserTags，而不是 deleteAllUserTagsNotInTopN

**javax.persistence.OptimisticLockException: Batch update returned unexpected row count from update [0]; actual row count: 0; expected: 1** 
    at **org.hibernate.jpa.spi.AbstractEntityManagerImpl.wrapStaleStateException(AbstractEntityManagerImpl.java:1800)** 
    at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1705) 
    at org.hibernate.jpa.spi.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1677) 
    at org.hibernate.jpa.internal.QueryImpl.getResultList(QueryImpl.java:458) 
    at **com.mysema.query.jpa.impl.AbstractJPAQuery.getResultList(AbstractJPAQuery.java:197)** 
    at com.mysema.query.jpa.impl.AbstractJPAQuery.list(AbstractJPAQuery.java:249) 
    at org.springframework.data.jpa.repository.support.QueryDslJpaRepository.findAll(QueryDslJpaRepository.java:101) 
    at sun.reflect.GeneratedMethodAccessor93.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:42) 
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.executeMethodOn(RepositoryFactorySupport.java:414) 
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:399) 
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:371) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:98) 
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:262) 
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodIntercceptor.invoke(CrudMethodMetadataPostProcessor.java:122) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) 
    **at com.sun.proxy.$Proxy114.findAll(Unknown Source) 
    at ro.app.service.tag.TagService.listUserTags(TagService.java:823) 
    at ro.app.listener.TagListener.prePersist(TagListener.java:47)** 
    at sun.reflect.GeneratedMethodAccessor174.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:42) 
    at org.hibernate.jpa.event.internal.jpa.ListenerCallback.performCallback(ListenerCallback.java:49) 
    at org.hibernate.jpa.event.internal.jpa.CallbackRegistryImpl.callback(CallbackRegistryImpl.java:112) 
    at org.hibernate.jpa.event.internal.jpa.CallbackRegistryImpl.preCreate(CallbackRegistryImpl.java:57) 
    at org.hibernate.jpa.event.internal.core.JpaPersistEventListener.saveWithGeneratedId(JpaPersistEventListener.java:83) 
    at org.hibernate.event.internal.DefaultPersistEventListener.entityIsTransient(DefaultPersistEventListener.java:206) 
    at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:149) 
    at org.hibernate.event.internal.DefaultPersistEventListener.onPersist(DefaultPersistEventListener.java:75) 
    at org.hibernate.internal.SessionImpl.firePersist(SessionImpl.java:811) 
    at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:784) 
    at org.hibernate.internal.SessionImpl.persist(SessionImpl.java:789) 
    at org.hibernate.jpa.spi.AbstractEntityManagerImpl.persist(AbstractEntityManagerImpl.java:1181) 
    at sun.reflect.GeneratedMethodAccessor173.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:42) 
    at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:291) 
    at com.sun.proxy.$Proxy97.persist(Unknown Source) 
    at org.springframework.data.jpa.repository.support.SimpleJpaRepository.save(SimpleJpaRepository.java:431) 
    at sun.reflect.GeneratedMethodAccessor94.invoke(Unknown Source) 
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 
    at java.lang.reflect.Method.invoke(Method.java:42) 
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.executeMethodOn(RepositoryFactorySupport.java:414) 
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.doInvoke(RepositoryFactorySupport.java:399) 
    at org.springframework.data.repository.core.support.RepositoryFactorySupport$QueryExecutorMethodInterceptor.invoke(RepositoryFactorySupport.java:371) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:98) 
    at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:262) 
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:95) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:136) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodIntercceptor.invoke(CrudMethodMetadataPostProcessor.java:122) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:92) 
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179) 
    at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:207) 
    at com.sun.proxy.$Proxy114.save(Unknown Source) 
    at ro.app.service.AbstractService.save(AbstractService.java:530) 
    **at ro.app.service.TagService.saveTagForUser(TagService.java:351)**

保存標籤對象在事務內完成。任何線索的問題可能是什麼？謝謝！

來源

2017-04-22 Roxana Roman

顯然，問題在於刪除標記（在deleteAllUserTagsNotInTopN（）方法中完成），儘管它在堆棧跟蹤中不可見。在TagRepository，我更換了刪除法deleteInBatch方法：

public interface TagRepository extends JpaRepository<Tag,Long> { 

    void deleteInBatch(Iterable<Notification> notifications); 
}

來源

2017-05-12 09:26:08

QueryDslJpaRepository.findAll批量更新從update [0]返回意外的行計數;實際行數：0;預期：1

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