Caused by: org.hibernate.HibernateException: identifier of an instance of ... is alterde from
Caused by: org.hibernate.HibernateException: identifier of an instance of ... is alterde from
Caused by: org.hibernate.HibernateException: identifier of an instance of .[类名]. is alterde from [数字] to [数字]
原因：是由于在一个事务中更新了主键,而主键是不能被更新的.
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