mybatis一对多
<collection property="orderList" ofType="cn.java.entity.Order">
字段
</collection>
<resultMap />
</collection>
</resultMap>
<select >
select
from zd_madatalb a left JOIN zd_madatalb_detail b on b.LBNO=a.LBNO
where a.LBNO=#{number}
</select>