org.hibernate.ObjectDeletedException: deleted instance passed to merge
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参考解决办法:
http://stackoverflow.com/questions/13059241/org-hibernate-objectdeletedexception-deleted-instance-passed-to-merge
Before an entity removed, this entity must be manage state. We can use some of the functionmerge
,find
, etc.Note : After EntityManager
is closed, all the entities of its will be detached.
public void remove(Person p) { Perosn p2 = em.merge(p); em.remove(p2);}
删除以前,必须是manage 状态,可以使用find 或者 merge 函数,将他变为manage状态。
JPA的生命周期介绍,参考: http://evil850209.iteye.com/blog/1932070
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