diff --git a/src/main/java/com/zjyr/beidouservice/service/impl/BeidouSocketProtocolServiceImpl.java b/src/main/java/com/zjyr/beidouservice/service/impl/BeidouSocketProtocolServiceImpl.java
index 6a98423..7f74472 100644
--- a/src/main/java/com/zjyr/beidouservice/service/impl/BeidouSocketProtocolServiceImpl.java
+++ b/src/main/java/com/zjyr/beidouservice/service/impl/BeidouSocketProtocolServiceImpl.java
@@ -12,6 +12,7 @@ import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Service;
 
 import java.sql.Timestamp;
+import java.util.ArrayList;
 import java.util.Date;
 import java.util.List;
 
@@ -43,9 +44,9 @@ public class BeidouSocketProtocolServiceImpl implements AdapterProtocolService {
                                     .alarmType(alarmType)
                                     .controlTunnel(tunnelName)
                                     .timeStamp((int) timestamp)
-                                    .cityCode(citys)
-                                    .districtsCode(areas)
-                                    .sensorId(sensors)
+                                    .cityCode(citys == null ? new ArrayList<>() : citys)
+                                    .districtsCode(areas == null ? new ArrayList<>() : citys)
+                                    .sensorId(sensors == null ? new ArrayList<>() : citys)
                                     .build();
     }