columnPropertyUnsame
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<mapper namespace="com.abc.dao.IStudentDao">
<insert id="insertStudent">
insert into student(tname,tage,score) values(#{name}, #{age}, #{score})
</insert>
<delete id="deleteById">
delete from student where tid=#{xxx}
</delete>
<update id="updateStudent">
update student set tname=#{name}, tage=#{age}, score=#{score} where tid=#{id}
</update>
<select id="selectStudentById" resultType="Student">
<!-- 给与属性名称不同的字段别名，让别名与属性名称相同 -->
select tid id,tname name,tage age,score from student where tid=#{ooo}
</select>
</mapper>
<mapper namespace="com.abc.dao.IStudentDao">
<insert id="insertStudent">
insert into student(tname,tage,score) values(#{name}, #{age}, #{score})
</insert>
<delete id="deleteById">
delete from student where tid=#{xxx}
</delete>
<update id="updateStudent">
update student set tname=#{name}, tage=#{age}, score=#{score} where tid=#{id}
</update>
<resultMap type="Student" id="studentMap">
<id column="tid" property="id"/>
<result column="tname" property="name"/>
<result column="tage" property="age"/>
</resultMap>
<select id="selectStudentById" resultMap="studentMap">
select tid,tname,tage,score from student where tid=#{ooo}
</select>
</mapper>
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