org.hibernate.PropertyAccessException: Null value was assigned to a property of primitive type sette

 org.hibernate.PropertyAccessException: Null value was assigned to a property

 <property column="sex"  name="sex"  type="java.lang.Boolean"/>

  JavaBean修改：private Boolean sex;

原因：数据库字段值为NULL,int 类型不能赋值为NULL，只能为0，但有些实际应用中，如学生分数，0表示0分，NULL，则表示暂无分数所以，要不设数据字段不为NULL，要不就是用Integer.

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