package com.hfkj.dao; import org.apache.ibatis.annotations.Param; import org.apache.ibatis.annotations.Select; import java.util.Map; /** * mapper扩展类 */ public interface BsMerKeyMapperExt { @Select({ " select mer_no merNo,b.`key` merKey from bs_mer a " + " LEFT JOIN bs_mer_key b on b.mer_id = a.id " + " where a.mer_no = #{merNo} and b.status = 1" }) Map queryKeyByMerNo(@Param("merNo") String merNo); }