From 14d4107a10f1a43db32e0d4f061e6c6149b46f5d Mon Sep 17 00:00:00 2001
From: hailin <hailin.zhao@gdzx.xyz>
Date: Sat, 20 Dec 2025 23:41:53 -0800
Subject: [PATCH] =?UTF-8?q?fix:=20=E4=BF=AE=E5=A4=8D=E6=8E=A8=E8=8D=90?=
 =?UTF-8?q?=E7=A0=81=E9=AA=8C=E8=AF=81=20API=20=E9=94=99=E8=AF=AF=E5=A4=84?=
 =?UTF-8?q?=E7=90=86?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

后端修复：
- getUserByReferralCode() 在推荐码不存在时抛出异常
- 之前返回 null，导致前端无法正确判断错误

前端修复：
- 增强 verifyReferralCode() 的响应检查
- 检查 response.data 和 data 字段是否为 null
- 添加详细的 debug 日志输出
- null 响应视为推荐码无效并抛出异常

问题原因：
- 后端返回 null 时，前端解析 response.data.data 会得到 null
- 前端没有检查 null 情况，导致显示 "status: null" 错误

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
---
 .../services/user-application.service.ts      |  4 +++-
 .../lib/core/services/account_service.dart    | 24 +++++++++++++++----
 2 files changed, 22 insertions(+), 6 deletions(-)

diff --git a/backend/services/identity-service/src/application/services/user-application.service.ts b/backend/services/identity-service/src/application/services/user-application.service.ts
index 22cb92ed..dade703c 100644
--- a/backend/services/identity-service/src/application/services/user-application.service.ts
+++ b/backend/services/identity-service/src/application/services/user-application.service.ts
@@ -779,7 +779,9 @@ export class UserApplicationService {
     const account = await this.userRepository.findByReferralCode(
       ReferralCode.create(query.referralCode),
     );
-    if (!account) return null;
+    if (!account) {
+      throw new ApplicationError('推荐码不存在或无效');
+    }
 
     return {
       userId: account.userId.toString(),
diff --git a/frontend/mobile-app/lib/core/services/account_service.dart b/frontend/mobile-app/lib/core/services/account_service.dart
index 1aa382f4..32cd91bc 100644
--- a/frontend/mobile-app/lib/core/services/account_service.dart
+++ b/frontend/mobile-app/lib/core/services/account_service.dart
@@ -1422,13 +1422,27 @@ class AccountService {
       final response = await _apiClient.get(
         '/user/by-referral-code/$referralCode',
       );
-      debugPrint('$_tag verifyReferralCode() - 推荐码有效');
 
-      final responseData = response.data as Map<String, dynamic>;
-      return responseData['data'] as Map<String, dynamic>? ?? responseData;
+      debugPrint('$_tag verifyReferralCode() - API 响应: ${response.data}');
+
+      // 检查响应数据
+      final responseData = response.data as Map<String, dynamic>?;
+      if (responseData == null) {
+        debugPrint('$_tag verifyReferralCode() - 响应数据为 null');
+        throw ApiException('推荐码不存在或无效');
+      }
+
+      final data = responseData['data'];
+      if (data == null) {
+        debugPrint('$_tag verifyReferralCode() - data 字段为 null');
+        throw ApiException('推荐码不存在或无效');
+      }
+
+      debugPrint('$_tag verifyReferralCode() - 推荐码有效');
+      return data as Map<String, dynamic>;
     } on ApiException catch (e) {
-      debugPrint('$_tag verifyReferralCode() - 推荐码无效: $e');
-      throw ApiException('推荐码不存在或无效');
+      debugPrint('$_tag verifyReferralCode() - API 异常: $e');
+      rethrow;
     } catch (e, stackTrace) {
       debugPrint('$_tag verifyReferralCode() - 未知异常: $e');
       debugPrint('$_tag verifyReferralCode() - 堆栈: $stackTrace');