异常:
org.springframework.orm.hibernate3.HibernateSystemException: Illegal attempt to associate a collection with two open sessions; nested exception is org.hibernate.HibernateException: Illegal attempt to associate a collection with two open sessions Caused by: org.hibernate.HibernateException: Illegal attempt to associate a collection with two open sessions at org.hibernate.collection.AbstractPersistentCollection.setCurrentSession(AbstractPersistentCollection.java:410) at org.hibernate.event.def.OnUpdateVisitor.processCollection(OnUpdateVisitor.java:43) at org.hibernate.event.def.AbstractVisitor.processValue(AbstractVisitor.java:101) at org.hibernate.event.def.AbstractVisitor.processValue(AbstractVisitor.java:61) at org.hibernate.event.def.AbstractVisitor.processEntityPropertyValues(AbstractVisitor.java:55) at org.hibernate.event.def.AbstractVisitor.process(AbstractVisitor.java:123)
原因:
系统中同一业务处理过程中,一个Session中对象可能被另一个Session访问,且业务处理过程中同时开了两个session
解决办法:
关闭上一个Sessoin后再接着处理下一个Session的业务,或将 业务处理合并到同一个Session中