identifier of an instance of com.xxx.model.system.xxxObject was altered from 1765 to 1766

Caused by: org.hibernate.HibernateException: identifier of an instance of com.xxx.model.system.xxxObject was altered from 1765 to 1766
    at org.hibernate.event.def.DefaultFlushEntityEventListener.checkId(DefaultFlushEntityEventListener.java:85)
    at org.hibernate.event.def.DefaultFlushEntityEventListener.getValues(DefaultFlushEntityEventListener.java:190)
    at org.hibernate.event.def.DefaultFlushEntityEventListener.onFlushEntity(DefaultFlushEntityEventListener.java:147)
    at org.hibernate.event.def.AbstractFlushingEventListener.flushEntities(AbstractFlushingEventListener.java:219)
    at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:99)
    at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:50)
    at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1216)
    at org.springframework.orm.hibernate3.HibernateTemplate$28.doInHibernate(HibernateTemplate.java:884)
    at org.springframework.orm.hibernate3.HibernateTemplate.doExecute(HibernateTemplate.java:407)
    ... 119 more

原因:

　　对一个实体类进行循环保存, 每次都需要进行new一个对象, 具体暂未深入研究, 应该是和主键以及Hibernate的session等有关

解决方式:

　　每次添加对象都使用new创建对象