java - 使用休眠 3 和 ojdbc 7 合并时出错

Question

当我使用merge()from 的方法保存我的实体时出现错误EntityManager。当我将 Hibernate 3 与 结合使用时会发生此问题ojdbc7 12.1.0.2.0 JDBC 4.1，但如果我更改ojdbc6 11.2.0.3.0 JDBC 4.0为此错误将消失。任何人都可以帮助解决我的问题，因为我需要使用ojdbc7.

>[2017-03-30 14:52:42.184]: ERROR - TransactionAspectSupport.completeTransactionAfterThrowing(408) | Application exception overridden by rollback exception
org.springframework.orm.jpa.JpaSystemException: org.hibernate.exception.GenericJDBCException: could not load an entity: [com.mycomp.casa.persistence.model.CustomerAccountOpening#554]; nested exception is javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: could not load an entity: [com.mycomp.casa.persistence.model.CustomerAccountOpening#554]
    at org.springframework.orm.jpa.EntityManagerFactoryUtils.convertJpaAccessExceptionIfPossible(EntityManagerFactoryUtils.java:321)
    at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:404)
    at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:58)
    at org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:213)
    at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:163)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:110)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:90)
    at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:172)
    at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:622)
    Caused by: javax.persistence.PersistenceException: org.hibernate.exception.GenericJDBCException: could not load an entity: [com.mycomp.casa.persistence.model.CustomerAccountOpening#554]
    at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1214)
    at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1147)
    at org.hibernate.ejb.AbstractEntityManagerImpl.convert(AbstractEntityManagerImpl.java:1153)
    at org.hibernate.ejb.AbstractEntityManagerImpl.merge(AbstractEntityManagerImpl.java:695)
    at sun.reflect.GeneratedMethodAccessor915.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:240)
    at com.sun.proxy.$Proxy104.merge(Unknown Source)

Caused by: org.hibernate.exception.GenericJDBCException: could not load an entity: [com.mycomp.casa.persistence.model.CustomerAccountOpening#554]
    at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:140)
    at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:128)
    at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:66)
    at org.hibernate.loader.Loader.loadEntity(Loader.java:2041)
    at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:86)
    at org.hibernate.loader.entity.AbstractEntityLoader.load(AbstractEntityLoader.java:76)
    at org.hibernate.persister.entity.AbstractEntityPersister.load(AbstractEntityPersister.java:3293)
    at org.hibernate.event.def.DefaultLoadEventListener.loadFromDatasource(DefaultLoadEventListener.java:496)
    at org.hibernate.event.def.DefaultLoadEventListener.doLoad(DefaultLoadEventListener.java:477)
    at org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:227)
    at org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:285)
    at org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:152)
    at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:1090)
    at org.hibernate.impl.SessionImpl.internalLoad(SessionImpl.java:1038)
    at org.hibernate.type.EntityType.resolveIdentifier(EntityType.java:630)
    at org.hibernate.type.EntityType.resolve(EntityType.java:438)
    at org.hibernate.type.EntityType.replace(EntityType.java:298)
    at org.hibernate.type.AbstractType.replace(AbstractType.java:176)
    at org.hibernate.type.TypeHelper.replace(TypeHelper.java:212)
    at org.hibernate.event.def.DefaultMergeEventListener.copyValues(DefaultMergeEventListener.java:600)
    at org.hibernate.event.def.DefaultMergeEventListener.mergeTransientEntity(DefaultMergeEventListener.java:337)
    at org.hibernate.event.def.DefaultMergeEventListener.entityIsTransient(DefaultMergeEventListener.java:303)
    at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:258)
    at org.hibernate.event.def.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:84)
    at org.hibernate.impl.SessionImpl.fireMerge(SessionImpl.java:867)
    at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:851)
    at org.hibernate.impl.SessionImpl.merge(SessionImpl.java:855)
    at org.hibernate.ejb.AbstractEntityManagerImpl.merge(AbstractEntityManagerImpl.java:686)
    ... 143 more
Caused by: java.sql.SQLException: Error
    at org.jboss.jca.adapters.jdbc.WrappedConnection.checkException(WrappedConnection.java:1972)
    at org.jboss.jca.adapters.jdbc.WrappedStatement.checkException(WrappedStatement.java:1446)
    at org.jboss.jca.adapters.jdbc.WrappedResultSet.checkException(WrappedResultSet.java:5986)
    at org.jboss.jca.adapters.jdbc.WrappedResultSet.next(WrappedResultSet.java:2693)
    at org.hibernate.loader.Loader.doQuery(Loader.java:825)
    at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:274)
    at org.hibernate.loader.Loader.loadEntity(Loader.java:2037)
    ... 167 more
Caused by: java.lang.ArrayIndexOutOfBoundsException: 128
    at oracle.jdbc.driver.T4CTTIrxd.readBitVector(T4CTTIrxd.java:135)
    at oracle.jdbc.driver.T4C8TTIrxh.unmarshalV10(T4C8TTIrxh.java:123)
    at oracle.jdbc.driver.T4C8Oall.readRXH(T4C8Oall.java:678)
    at oracle.jdbc.driver.T4CTTIfun.receive(T4CTTIfun.java:436)
    at oracle.jdbc.driver.T4CTTIfun.doRPC(T4CTTIfun.java:257)
    at oracle.jdbc.driver.T4C8Oall.doOALL(T4C8Oall.java:587)
    at oracle.jdbc.driver.T4CPreparedStatement.doOall8(T4CPreparedStatement.java:225)
    at oracle.jdbc.driver.T4CPreparedStatement.fetch(T4CPreparedStatement.java:1066)
    at oracle.jdbc.driver.OracleStatement.fetchMoreRows(OracleStatement.java:3716)
    at oracle.jdbc.driver.InsensitiveScrollableResultSet.fetchMoreRows(InsensitiveScrollableResultSet.java:1015)
    at oracle.jdbc.driver.InsensitiveScrollableResultSet.absoluteInternal(InsensitiveScrollableResultSet.java:979)
    at oracle.jdbc.driver.InsensitiveScrollableResultSet.next(InsensitiveScrollableResultSet.java:579)
    at org.jboss.jca.adapters.jdbc.WrappedResultSet.next(WrappedResultSet.java:2689)
    ... 170 more

Answer 1

在 Oracle 10g 数据库中使用 12.1.0.2 驱动程序时遇到了同样的问题。当驱动程序执行提取时显然会发生这种情况 - 在滚动 ResultSet 时查询数据库以获取更多行。

正如@MarkRotteveel 在他的评论中指出的那样，这看起来像是驱动程序中的一个讨厌的错误。

增加fetchSize属性作为一种临时解决方法可以很好地避免该问题，强制驱动程序一次检索所有结果而没有数据要获取，但这不是一个长期的解决方案，可能会对性能/内存产生很大的负面影响取决于查询正在检索的数据的大小和数量。

如果您使用的是 Hibernate，请尝试识别引发异常的查询（例如使用hibernate.show_sql），检查它返回的行数并hibernate.jdbc.fetch_size相应地调整属性。

非零值确定 JDBC 提取大小（调用Statement.setFetchSize()）。

或者尝试使用不同版本的驱动程序。如果我没记错的话，12.1.0.1 不会发生这个异常。

Answer 2

如果您使用的是 Oracle 12c，请尝试使用 Oracle12cDialect 作为方言。