diff --git a/lib/blue/sender_beforeDataManage.dart b/lib/blue/sender_beforeDataManage.dart
index 09d83cca..14f59aeb 100755
--- a/lib/blue/sender_beforeDataManage.dart
+++ b/lib/blue/sender_beforeDataManage.dart
@@ -1,5 +1,6 @@
 import 'dart:async';
 
+import 'package:flutter/cupertino.dart';
 import 'package:star_lock/blue/entity/lock_user_no_list_entity.dart';
 import 'package:star_lock/blue/io_protocol/io_cleanUpUsers.dart';
 import 'package:star_lock/common/XSConstantMacro/XSConstantMacro.dart';
@@ -276,6 +277,12 @@ class SenderBeforeDataManage {
 
   // 普通用户接收电子钥匙之后 更新锁用户NO
   Future<void> _updateLockUserNo(List<int> dataList) async {
+    // 使用空值感知操作符安全访问 keyId
+    final String? keyId = CommonDataManage().currentKeyInfo.keyId?.toString();
+    if (keyId == null) {
+      debugPrint('keyId获取失败');
+      return;
+    }
     final LockNetTokenEntity entity = await ApiRepository.to.updateLockUserNo(
         keyId: CommonDataManage().currentKeyInfo.keyId.toString(), lockUserNo: CommonDataManage().currentKeyInfo.lockUserNo.toString());
     if (entity.errorCode!.codeIsSuccessful) {