org.hibernate.jdbc.BatchedTooManyRowsAffectedException

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#hibernate #database #session #数据库 #delete #sql

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本文分析了Hibernate在执行批量删除操作时出现BatchedTooManyRowsAffectedException错误的原因，并给出了具体的解决方案。错误源于实体类主键定义与数据库实际主键不一致导致的批量操作异常。

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Hibernate 的 delete 操作时报错：

[2011-08-01 15:16:12.656] http-8089-1

<> Could not synchronize database state with session org.hibernate.jdbc.BatchedTooManyRowsAffectedException: Batch update returned unexpected row count from update [0]; actual row count: 2; expected: 1

   at org.hibernate.jdbc.Expectations$BasicExpectation.checkBatched(Expectations.java:71)
   at org.hibernate.jdbc.Expectations$BasicExpectation.verifyOutcome(Expectations.java:46)
   at org.hibernate.jdbc.NonBatchingBatcher.addToBatch(NonBatchingBatcher.java:24)
   at org.hibernate.persister.entity.AbstractEntityPersister.delete(AbstractEntityPersister.java:2525)
   at org.hibernate.persister.entity.AbstractEntityPersister.delete(AbstractEntityPersister.java:2702)
   at org.hibernate.action.EntityDeleteAction.execute(EntityDeleteAction.java:77)
   at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:279)
   at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:263)
   at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:172)
   at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)
   at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
   at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
   at org.springframework.orm.hibernate3.HibernateAccessor.flushIfNecessary(HibernateAccessor.java:390)
   at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:407)
   at org.springframework.orm.hibernate3.HibernateTemplate.executeWithNativeSession(HibernateTemplate.java:374)
   at org.springframework.orm.hibernate3.HibernateTemplate.delete(HibernateTemplate.java:837)
   at org.springframework.orm.hibernate3.HibernateTemplate.delete(HibernateTemplate.java:833)
   at com.pbn.oss.dashboard.model.dao.BaseDashboardDao.delete(BaseDashboardDao.java:24)
   at com.pbn.oss.dashboard.ws.service.DashBoardServiceImpl.invokeDelAppOnDashboardRequest(DashBoardServiceImpl.java:179)
   at com.pbn.oss.dashboard.ws.endpoint.DashboardEndpoint.invokeDelAppOnDashboardRequest(DashboardEndpoint.java:150)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:597)
   at org.springframework.ws.server.endpoint.MethodEndpoint.invoke(MethodEndpoint.java:115)
   at org.springframework.ws.server.endpoint.adapter.MarshallingMethodEndpointAdapter.invokeInternal(MarshallingMethodEndpointAdapter.java:135)
   at org.springframework.ws.server.endpoint.adapter.AbstractMethodEndpointAdapter.invoke(AbstractMethodEndpointAdapter.java:58)
   at org.springframework.ws.server.MessageDispatcher.dispatch(MessageDispatcher.java:228)
   at org.springframework.ws.server.MessageDispatcher.receive(MessageDispatcher.java:170)
   at org.springframework.ws.transport.support.WebServiceMessageReceiverObjectSupport.handleConnection(WebServiceMessageReceiverObjectSupport.java:88)
   at org.springframework.ws.transport.http.WebServiceMessageReceiverHandlerAdapter.handle(WebServiceMessageReceiverHandlerAdapter.java:57)
   at org.springframework.ws.transport.http.MessageDispatcherServlet.doService(MessageDispatcherServlet.java:230)
   at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644)
   at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88)
   at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.eclipse.virgo.web.tomcat.ApplicationNameTrackingValve.invoke(ApplicationNameTrackingValve.java:29)
   at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:555)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:857)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)

at java.lang.Thread.run(Thread.java:619)

原因是在调用
public void invokeDelAppOnDashboardRequest
的 baseDashboardDao.delete(dsbWin);
删除dsbWin时会关联删除 dsbWin中的 param

而param的 @Id 只指定了一个，但是数据库中是联合主键
所以会报错
Could not synchronize database state with session org.hibernate.jdbc.BatchedTooManyRowsAffectedException:
Batch update returned unexpected row count from update [0]; actual row count: 2; expected: 1

表示执行批删除sql时，根据 winParam的主键name找找到了两条记录（数据库中是name和winId联合主键）

解决方法：查看 注解方式实现 Hibernate 的双向一对多关系的映射