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org.hibernate.PropertyValueException: not-null property references a null or transient value

org.hibernate.PropertyValueException: not-null property references a null or transient value:

com.bjcx.project.entity.task.Equipmenttable.ProjPortfolioID 
at org.hibernate.engine.Nullability.checkNullability(Nullability.java:72) 
at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate 

字面意思:一个不允许为Null的属性引用了一个为Null的或者无效的值。 

原因:在***.hbm.xml中的 

<property name="ProjPortfolioID" column="ProjPortfolioID" 
    type="big_decimal" not-null="true" length="10" /> 

中,not-null="true",这说明属性ProjPortfolioID 不允许为空,而在ActionForm中未给他赋值,则就为空,所以就会报错!

 

source:http://zgphacker2010.iteye.com/blog/983190

org.hibernate.PropertyValueException: not-null property references a null or transient value