关于hibernate主键生成策略报错

老白分享 2014-12-08 04:28:24

向数据库表中插入数据保存操作时报错，信息如下：

org.hibernate.HibernateException: The database returned no natively generated identity value

	at org.hibernate.id.IdentifierGeneratorFactory.getGeneratedIdentity(IdentifierGeneratorFactory.java:33)

	at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:1970)

	at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2405)

	at org.hibernate.action.EntityIdentityInsertAction.execute(EntityIdentityInsertAction.java:37)

	at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:248)

	at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:269)

	at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:167)

	at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:101)

	at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:186)

	at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:175)

	at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:98)

	at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:70)

	at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:502)

	at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:494)

	at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:490)

hibernate映射文件主键配置如下：

<id name="id" type="int" column="ID">

	       <generator class="native">

	       	<param  name="sequence">SEQ_SYSTEM_DEPARTMENT</param>

	       </generator>

	    </id>

数据库中自动生成我已经选择：