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a different object with the same identifier value was already associated with the session的解决办法

2007-03-09 8:38

把session.saveOrUpdate(role); 改为

session.merge(role); 就搞定了

官方的user faq

I called saveOrUpdate() or update() and got a NonUniqueObjectException!

The session maintains a unique mapping between persistent identity and object instance, in order to help you avoid data aliasing problems. You cannot simultaneously attach two objects with the same class and identifier to the same session.

The be

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