下面是一个树形结构表自连接 联合查询 Demo
<resultMap />
</resultMap>
<!--extends="BaseResultMap" resultMap 相同列继承继承 -->
<resultMap type="com.maidan.daas.entity.AccoSysmanResource" ><!-- 延迟加载 传递两个参数
{pMenuId=child_pid,userId=userId}
传递查询参数名称=字段名称
-->
<collection property="subResource" javaType="ArrayList" select="getShopChildAccoSysmanResource"
column="{pMenuId=child_pid,userId=userId}" ofType="com.maidan.daas.entity.AccoSysmanResource" >
</collection>
</collection>
</resultMap>
<select >
select
*
from acco_sysman_resource where delete_flag = 0
AND p_menu_id=#{pMenuId,jdbcType=INTEGER}
ANDuser_id = #{userId,jdbcType=INTEGER}
</select>