mybatis 子查询多个条件 ？

Question

现在想通过父查询把参数start，end传到子查询中

父查询

 @Select("select * from tb_enterprise_watch  where id = #{enterpriseWatchId}")
    @Results({
            @Result(id=true,property = "id",column = "id"),
            @Result(id=true,property = "watchId",column = "watch_id"),
            @Result(property="positions",column="watch_id=watch_id,start=#{start},end=#{end}",many = @Many(select="com.uwhere.dal.mapper.TbWatchPositionMapper.findPathByWatchId"))
    })
    TbEnterpriseWatch getPathByWatchId(@Param("enterpriseWatchId") Long enterpriseWatchId, @Param("start")Date start,@Param("end")Date end);

子查询

    @Select("SELECT * FROM tb_watch_position " +
            "WHERE gmt_create >= #{start} " +
            "AND gmt_create <= #{end} " +
            "AND watch_id=#{watchId} " +
            "ORDER BY gmt_create")
    public List<TbWatchPosition> findPathsByWatchId(@Param("watchId") Long watchId,
                                                   @Param("start") Date dateStart, @Param("end") Date dateEnd);

Answer 1

1、getPathByWatchId()方法返回的是TbEnterpriseWatch实体类，findPathsByWatchId()方法的形参为什么不用TbEnterpriseWatch实体类呢？
2、没看出来有你说的父查询和子查询的关系；
3、如果只是参数传递的问题，一个查询的结果作为另一个查询的参数，这种情况很常见，你在Service层处理问题不大。