org.hibernate.TransientObjectException: object references an unsaved transient instance
2010-11-03 11:25
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org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing:
这主要是在ManyToOne级联操作时遇到,比如new了一个新对象,在未保存之前将它保存进了一个新new的对象(也即不是持久态)。
解决办法是在保存或更新之前把这个对象查出来(这样就是一个持久态)。
解决办法是将many-to-one的级联设为:
cascade="save-update,persist"
这主要是在ManyToOne级联操作时遇到,比如new了一个新对象,在未保存之前将它保存进了一个新new的对象(也即不是持久态)。
解决办法是在保存或更新之前把这个对象查出来(这样就是一个持久态)。
解决办法是将many-to-one的级联设为:
cascade="save-update,persist"
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