参数非空验证调整代码顺序

ZhuDongming

2019-06-06 9619321de5174826e85cd070eb7c3e035ddfaf7e

 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>