diff --git a/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/task/PlatePublishTask.java b/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/task/PlatePublishTask.java
index 2917fe9..3df23bc 100644
--- a/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/task/PlatePublishTask.java
+++ b/example/mqtt-car/src/main/java/org/dromara/mica/mqtt/server/task/PlatePublishTask.java
@@ -152,22 +152,23 @@ public class PlatePublishTask {
 		}
 
 		JSONObject dldbRec = new JSONObject();
+		JSONObject payload = null;
 		dldbRec.put("create_time", DateUtil.format(new Date(), DatePattern.NORM_DATETIME_PATTERN));
 		dldbRec.put("enable_time", DateUtil.format(carInfo.getEnableTime(), DatePattern.NORM_DATETIME_PATTERN));
 		dldbRec.put("overdue_time", DateUtil.format(carInfo.getOverdueTime(), DatePattern.NORM_DATETIME_PATTERN));
-		dldbRec.put("enable", Integer.parseInt(carInfo.getEnable()));
+		dldbRec.put("enable", StrUtil.isBlank(carInfo.getEnable()) ? 0 : Integer.parseInt(carInfo.getEnable()));
 		dldbRec.put("plate", carInfo.getPlate());
-		dldbRec.put("time_seg_enable", Integer.parseInt(carInfo.getTimeSegEnable()));
+		dldbRec.put("time_seg_enable", StrUtil.isBlank(carInfo.getTimeSegEnable()) ? 0 : Integer.parseInt(carInfo.getTimeSegEnable()));
 		dldbRec.put("seg_time_start", carInfo.getSegTimeStart() == null ? "00:00:00" : carInfo.getSegTimeStart());
 		dldbRec.put("seg_time_end", carInfo.getSegTimeEnd() == null ? "00:00:00" : carInfo.getSegTimeEnd());
-		dldbRec.put("need_alarm", Integer.parseInt(carInfo.getNeedAlarm()));
+		dldbRec.put("need_alarm", StrUtil.isBlank(carInfo.getNeedAlarm()) ? 0 : Integer.parseInt(carInfo.getNeedAlarm()));
 
 		JSONObject body = new JSONObject();
 		body.put("operator_type", "update_or_add");
 		body.put("dldb_rec", dldbRec);
 
 
-		JSONObject payload = new JSONObject();
+		payload = new JSONObject();
 		payload.put("type", "white_list_operator");
 		payload.put("body", body);
 		return payload;