小编lyn*_*ynn的帖子

我在Java J2EE Web应用程序中使用Hibernate 3.5.2和Spring Core 3.0.1.当单独的用户同时更新同一记录时,我得到一个StaleObjectStateExcpetion.事务由javax.persistence.EntityManager管理.以下是我创建问题的步骤.

1. User1登录到应用程序
2. User2登录到应用程序
3. User1开始编辑recordA
4. User2开始编辑recordA
5. User1保存记录A.
6. User2保存记录A.
7. 抛出org.hibernate.StaleObjectStateException(见下文)

我已经读过这是由数据库中更新的版本号与该特定实体当前在内存中的版本号之间的差异引起的.但是,当我尝试使用查询或使用EntityManager.find()方法从数据库中查找当前版本号以从数据库中获取最新信息时,我发现版本号没有区别.我还试图手动并使用entityManager.merge(object)方法合并旧实体和新实体之间的更改,但没有运气.有关如何解决此问题的任何想法？

13290 [http-8080-7] ERROR org.hibernate.event.def.AbstractFlushingEventListener  - Could not synchronize database state with session
org.hibernate.StaleObjectStateException: Row was updated or deleted by another transaction (or unsaved-value mapping was incorrect): [edu.pitt.nmrl.med.domain.medical.MedicalHistory#362]
    at org.hibernate.persister.entity.AbstractEntityPersister.check(AbstractEntityPersister.java:1934)
    at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2578)
    at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2478)
    at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2805)
    at org.hibernate.action.EntityUpdateAction.execute(EntityUpdateAction.java:114)
    at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:268)
    at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:260)
    at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:180)
    at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:321)
    at org.hibernate.event.def.DefaultAutoFlushEventListener.onAutoFlush(DefaultAutoFlushEventListener.java:64)
    at org.hibernate.impl.SessionImpl.autoFlushIfRequired(SessionImpl.java:1175)
    at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1251)
    at org.hibernate.impl.QueryImpl.list(QueryImpl.java:102)
    at org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:241)
    at org.hibernate.ejb.criteria.CriteriaQueryCompiler$3.getResultList(CriteriaQueryCompiler.java:260)
    at edu.pitt.nmrl.med.services.SurveyService.checkMedicalDup(SurveyService.java:613)
    at edu.pitt.nmrl.med.services.SurveyService.save(SurveyService.java:790)
    at edu.pitt.nmrl.med.services.SurveyService$$FastClassByCGLIB$$b6424505.invoke(<generated>)
    at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:191)
    at …