a different object with the same identifier value was already associated with the session
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解决a different object with the same identifier value was already associated with the session错误
这个错误产生原因在hibernate中同一个session里面有了两个相同标识,但是是不同实体,当这时运行saveOrUpdate(object)操作的时候就会报这个错误。
因为我在实体类的配置中实体之间的关联关系中使用了cascade=”save-update”导致我在新增数据的时候报了以上的错。
我的解决方法是将cascade=”save-update”改为cascade=”none”就可以了。
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