今天遇到個怪問題，hibernate修改外來鍵id時出現：

org.springframework.orm.hibernate3.HibernateSystemException: identifier of an instance of xx altered from 2677 to 2672; 

nested exception is org.hibernate.HibernateException: identifier of an instance of com.yongjun.tdms.model.CustomerRelationship.contactArchives.ContactArchives altered from 2677 to 2672

 

Caused by: org.hibernate.HibernateException: identifier of an instance of xx altered from 2677 to 2672

	at org.hibernate.event.def.DefaultFlushEntityEventListener.checkId(DefaultFlushEntityEventListener.java:51)
	...
	at java.lang.Thread.run(Thread.java:619)

結果在網上看到大神的解決方法

引用：

應該是快取導致，save前先clear()試試
dao.clear();
dao.save(entity);
 

	public void storeContractAdditionalInfo(ContractAdditionalInfo ai){
		super.getHibernateTemplate().clear();//加的清快取
		super.store(ai);
	}