diff --git a/src/main/java/com/kimgo/wepush/service/HeartBeatService.java b/src/main/java/com/kimgo/wepush/service/HeartBeatService.java
index 2c7664e..4b31c05 100644
--- a/src/main/java/com/kimgo/wepush/service/HeartBeatService.java
+++ b/src/main/java/com/kimgo/wepush/service/HeartBeatService.java
@@ -26,6 +26,7 @@ public class HeartBeatService {
             return ServerResponseEntity.fail("Invalid accessToken");
         }
         DeviceInfoDAO deviceInfoDAO = getDeviceInfoBySN(deviceInfo.getSN());
+        logger.info("deviceInfoDAO: {}",deviceInfoDAO);
         if (deviceInfoDAO == null) {
             // 设备信息不存在，可能是无效的设备
             boolean isSuccess =  addDeviceInfo(deviceInfo);