Question

我们面临一个与spring @Transactional相关的问题，我们有一个控制器和一个服务类，虽然服务类没有标记@Transactional，实体正在保存。我们正在使用@EnableTransactionManagement(proxyTargetClass = true)和OpenEntityManagerInViewInterceptor spring data JPA 。我想这些信息可能还不够，但对这种行为的可能原因有什么了解。在实体持久性之前几乎没有日志

2016-01-07 20:58:15,393 DEBUG [org.springframework.data.repository.core.support.TransactionalRepositoryProxyPostProcessor$CustomAnnotationTransactionAttributeSource] (default task-23)  Adding transactional method 'save' with attribute: PROPAGATION_REQUIRED,ISOLATION_DEFAULT; ''
2016-01-07 20:58:15,393 DEBUG [org.springframework.transaction.jta.JtaTransactionManager] (default task-23)  Creating new transaction with name [org.springframework.data.envers.repository.support.EnversRevisionRepositoryImpl.save]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT; ''
2016-01-07 20:58:15,394 DEBUG org.hibernate.engine.transaction.internal.TransactionCoordinatorImpl] (default task-23)  Skipping JTA sync registration due to auto join checking
2016-01-07 20:58:15,394 DEBUG [org.hibernate.engine.transaction.internal.TransactionCoordinatorImpl] (default task-23)  Skipping JTA sync registration due to auto join checking
2016-01-07 20:58:15,394 DEBUG [org.hibernate.engine.transaction.internal.TransactionCoordinatorImpl] (default task-23)  successfully registered Synchronization
2016-01-07 20:58:15,394 DEBUG [org.hibernate.jpa.spi.AbstractEntityManagerImpl] (default task-23)  Looking for a JTA transaction to join
2016-01-07 20:58:15,394 DEBUG org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler] (default task-23)  Joined JTA transaction
2016-01-07 20:58:15,394 DEBUG org.springframework.beans.factory.support.DefaultListableBeanFactory] (default task-23)  Returning cached instance of singleton bean 'jpaAuditingHandler'
2016-01-07 20:58:15,417 DEBUG [org.springframework.transaction.jta.JtaTransactionManager] (smsQueueListenerBean-1)   Initiating transaction commit
2016-01-07 20:58:15,417 DEBUG [org.springframework.transaction.jta.JtaTransactionManager] (smsQueueListenerBean-1)   Creating new transaction with name [smsQueueListenerBean]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT
2016-01-07 20:58:15,418 DEBUG [org.springframework.transaction.jta.JtaTransactionManager] (emailQueueListenerBean-1)   Initiating transaction commit
2016-01-07 20:58:15,418 DEBUG [org.springframework.transaction.jta.JtaTransactionManager] (emailQueueListenerBean-1)   Creating new transaction with name [emailQueueListenerBean]: PROPAGATION_REQUIRED,ISOLATION_DEFAULT
2016-01-07 20:58:15,459 DEBUG [org.springframework.transaction.jta.JtaTransactionManager] (default task-23)  Participating in existing transaction
2016-01-07 20:58:15,459 DEBUG [org.springframework.transaction.jta.JtaTransactionManager] (default task-23)  Participating in existing transaction
2016-01-07 20:58:15,460 DEBUG [org.hibernate.engine.jdbc.internal.LogicalConnectionImpl] (default task-23)  Obtaining JDBC connection
2016-01-07 20:58:15,461 DEBUG [org.hibernate.engine.jdbc.internal.LogicalConnectionImpl] (default task-23)  Obtained JDBC connection
2016-01-07 20:58:15,463 DEBUG [org.hibernate.loader.plan.exec.process.internal.ResultSetProcessorImpl] (default task-23)  Starting ResultSet row #0
2016-01-07 20:58:15,463 DEBUG [org.hibernate.loader.plan.exec.process.internal.EntityReferenceInitializerImpl] (default task-23)  On call to EntityIdentifierReaderImpl#resolve, EntityKey was already known; should only happen on root returns with an optional identifier specified
2016-01-07 20:58:15,464 DEBUG [org.hibernate.engine.jdbc.internal.LogicalConnectionImpl] (default task-23)  Releasing JDBC connection
2016-01-07 20:58:15,465 DEBUG [org.hibernate.engine.jdbc.internal.LogicalConnectionImpl] (default task-23)  Released JDBC connection

Answer 1

总结我们在评论中讨论的内容： SimpleJpaRepository是JpaRepository接口的默认实现。如果我们看一下这个实现，我们可以看到，默认情况下，我们使用的是只读事务（对于像findAll这样的方法，...），对于删除或保存服务，它们都是用@transactional注释的。优质教育基金。

实体在没有@Transactional的情况下保存

1 个答案: