<select id="selectLogin" resultMap="BaseResultMap" parameterType="map">
SELECT
-- *???//这样真的好么?答案就是,这样不好.
<include refid="Base_Column_List" />
from mmall_user
where username = #{username}
and password = #{password}
</select>
这里源码是parameterType,老师讲的时候是parameterMap,有点蒙了