From 8ff6433b8d8d0f63e07601b29626992c2de3758b Mon Sep 17 00:00:00 2001
From: Tian jianyong <11429339@qq.com>
Date: Wed, 24 Dec 2025 19:42:18 +0800
Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=94=B9=E8=AF=AD=E6=B3=95=E9=94=99?=
 =?UTF-8?q?=E8=AF=AF?=
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---
 .../module_admin/controller/ragflow_controller.py              | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/ruoyi-fastapi-backend/module_admin/controller/ragflow_controller.py b/ruoyi-fastapi-backend/module_admin/controller/ragflow_controller.py
index b04e5b7..5aea766 100644
--- a/ruoyi-fastapi-backend/module_admin/controller/ragflow_controller.py
+++ b/ruoyi-fastapi-backend/module_admin/controller/ragflow_controller.py
@@ -456,7 +456,8 @@ def stream_cached_response(cached_answer: str, chat_id: str, start_time: float,
     yield end_message
     
     logger.info(f"[CACHE_STREAM {stream_end_time:.3f}] 🏁 缓存流式响应完成")
-    logger.info(f"[CACHE_STREAM {stream_end_time:.3f}] 📊 缓存答案长度: {len(cached_answer)} 字符")
+    if cached_answer:
+        logger.info(f"[CACHE_STREAM {stream_end_time:.3f}] 📊 缓存答案长度: {len(cached_answer)} 字符")
     
     total_time = time.perf_counter() - start_time
     logger.info(f'[CACHE_STREAM {time.time():.3f}] ⏱️ Total Cache Stream Duration ({chat_id}): {total_time:.3f}s')
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