修复数据推送bug

smart-city-platform/src/main/resources/mapper/PushLogMapper.xml

@@ -71,7 +71,7 @@
 		where 
 			push_content = #{pushContent}
 		and push_config_id = #{configId}
-		order by push_time limit 1
+		order by push_time desc limit 1
 	</select>
 
 </mapper>