限制SN唯一

license/src/main/java/iot/sixiang/license/service/impl/DeviceServiceImpl.java

@@ -156,7 +156,17 @@ public class DeviceServiceImpl extends ServiceImpl<DeviceMapper, Device> impleme
             if (deviceId.equals(device.getDeviceId())) {
                 return BaseResult.success();
             } else {
-                return BaseResult.failed().setMsgValue("设备sn已被绑定");
+                return BaseResult.failed().setMsgValue("设备编码已被绑定");
+            }
+        }
+        LambdaQueryWrapper<Device> lambdaQueryWrapper = new LambdaQueryWrapper<>();
+        lambdaQueryWrapper.eq(Device::getSn, sn).last("limit 1");
+        Device device1 = deviceMapper.selectOne(lambdaQueryWrapper);
+        if (device1 != null) {
+            if (deviceId.equals(device1.getDeviceId())) {
+                return BaseResult.success();
+            } else {
+                return BaseResult.failed().setMsgValue("SN已被绑定");
             }
         }
         LambdaQueryWrapper<Device> wrapper = new LambdaQueryWrapper<>();