diff --git a/app/api/api_recommendation.py b/app/api/api_recommendation.py
index 4084e46..40f7fa0 100644
--- a/app/api/api_recommendation.py
+++ b/app/api/api_recommendation.py
@@ -92,6 +92,7 @@ async def get_recommendations(user_id: int, category: str, brand_id: int, brand_
             ]
     """
     try:
+        logger.info(f"user_id:{user_id}, category:{category}, num_recommendations:{num_recommendations}")
         start_time = time.time()
         cache_key = (user_id, category)
         # === 新增：用户存在性检查 ===