添加无人机查询最大值和最小值的service实现

ZhuDongming

2019-08-15 9902b8ccf2d4a7a297189a39c5843f52a83c7315

 src/main/resources/mapper/DeviceMapper.xml

@@ -414,4 +414,8 @@
         </if>
      )
   </select>
	
   <select id="getLimitDataByDevice" resultType="String">
      SELECT limit_val FROM view_device_density WHERE mac = #{mac}
   </select>
</mapper>