fix:修改utf-8解码可能报错

yj_room_agent/tianyi_ai/knowledge_chat.py

@@ -80,9 +80,9 @@ def do_chat_with_bot(user_query,session_id):
     if str(resp.status_code) == '200':
         for chunk in resp.iter_content(chunk_size=2048):
             if chunk:
-                text = chunk.decode('utf-8')
-                logger.debug(f'session {body.get('sessionId')} :\nchat with {body.get('agentCode')}: \ncontent is :{text}')
-                yield text
+                #text = chunk.decode('utf-8')
+                #logger.debug(f'session {body.get('sessionId')} :\nchat with {body.get('agentCode')}: \ncontent is :{text}')
+                yield chunk
     else:
         logger.error(f"request chat with bot error,code is : {resp.status_code},\n error body is :{resp.content}")
         yield resp.content