a different object with the same identifier value was already associated with th

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org.springframework.orm.hibernate3.HibernateSystemException: a different object with the same identifier value was already associated with the session: [com.dodomelon.dao.po.ElecmgProductInout#1435626946138_1_414010011]; nested exception is org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session: [com.dodomelon.dao.po.ElecmgProductInout#1435626946138_1_414010011]

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Caused by: org.hibernate.NonUniqueObjectException: a different object with the same identifier value was already associated with the session:

 

网上搜了下，这个异常产生原因比较多，我自己的原因是，插入多条数据时，数据的主键相同所以报错