Null value was assigned to a property of primitive type setter有关问题分析与解决

Null value was assigned to a property of primitive type setter问题分析与解决

改为：
<property name="state" type="java.lang.Integer"></property>
类似的问题还有Double类型的情况.
http://blog.csdn.net/zzqzzq104/article/details/7236189