diff --git a/src/main/java/com/ruoyi/device/domain/impl/AircraftDomainImpl.java b/src/main/java/com/ruoyi/device/domain/impl/AircraftDomainImpl.java
index 6bac01d..536e31e 100644
--- a/src/main/java/com/ruoyi/device/domain/impl/AircraftDomainImpl.java
+++ b/src/main/java/com/ruoyi/device/domain/impl/AircraftDomainImpl.java
@@ -51,7 +51,10 @@ public class AircraftDomainImpl implements IAircraftDomain
     public int insertAircraft(Aircraft aircraft)
     {
         AircraftEntity entity = AircraftDomainConvert.toEntity(aircraft);
-        return aircraftMapper.insertAircraft(entity);
+        int result = aircraftMapper.insertAircraft(entity);
+        // MyBatis 会将自增主键回填到 entity 对象，需要同步回 aircraft 对象
+        aircraft.setAircraftId(entity.getAircraftId());
+        return result;
     }
 
     @Override
diff --git a/src/main/java/com/ruoyi/device/domain/impl/DeviceDomainImpl.java b/src/main/java/com/ruoyi/device/domain/impl/DeviceDomainImpl.java
index 8f5e14c..88aa748 100644
--- a/src/main/java/com/ruoyi/device/domain/impl/DeviceDomainImpl.java
+++ b/src/main/java/com/ruoyi/device/domain/impl/DeviceDomainImpl.java
@@ -51,7 +51,10 @@ public class DeviceDomainImpl implements IDeviceDomain
     public int insertDevice(Device device)
     {
         DeviceEntity entity = DeviceDomainConvert.toEntity(device);
-        return deviceMapper.insertDevice(entity);
+        int result = deviceMapper.insertDevice(entity);
+        // MyBatis 会将自增主键回填到 entity 对象，需要同步回 device 对象
+        device.setDeviceId(entity.getDeviceId());
+        return result;
     }
 
     @Override
diff --git a/src/main/java/com/ruoyi/device/domain/impl/DockDomainImpl.java b/src/main/java/com/ruoyi/device/domain/impl/DockDomainImpl.java
index 04f7635..081f6f4 100644
--- a/src/main/java/com/ruoyi/device/domain/impl/DockDomainImpl.java
+++ b/src/main/java/com/ruoyi/device/domain/impl/DockDomainImpl.java
@@ -51,7 +51,10 @@ public class DockDomainImpl implements IDockDomain
     public int insertDock(Dock dock)
     {
         DockEntity entity = DockDomainConvert.toEntity(dock);
-        return dockMapper.insertDock(entity);
+        int result = dockMapper.insertDock(entity);
+        // MyBatis 会将自增主键回填到 entity 对象，需要同步回 dock 对象
+        dock.setDockId(entity.getDockId());
+        return result;
     }
 
     @Override