错误 org.hibernate.PropertyAccessException 博客分类： hibernate HibernateBean

org.hibernate.PropertyAccessException: Null value was assigned to a property of primitive type setter of  com.xuguang.u8.otheroutsheet.bean.OtherOutSheetItem.unitCost
原因hibernate不能将null值映射成double
办法把OtherOutSheetItem的属性unitCost声明为Double