问一个 websockets 的问题

我用 python 写了一个 websockets 例子， 服务端和客户端在一台服务器上就可以正常通信， 放在不同的服务器就会提示 error：websockets.exceptions.InvalidMessage: did not receive a valid HTTP response 。 是不是网络的问题，不过我服务器防火墙上的端口都打开了。 sever.py 服务端 import asyncio import websockets # 检测客户端权限，用户名密码通过才能退出循环 async def check_permit(websocket): while True: recv_str = await websocket.recv() cred_dict = recv_str.split(":") print("接受",cred_dict) if cred_dict[0] == "admin" and cred_dict[1] == "123456": response_str = "congratulation, you have connect with server\r\nnow, you can do something else" await websocket.send(response_str) return True else: response_str = "sorry, the username or password is wrong, please submit again" await websocket.send(response_str) # 接收客户端消息并处理，这里只是简单把客户端发来的返回回去 async def recv_msg(websocket): while True: recv_text = await websocket.recv() print("消息:",str(recv_text)) response_text = f"your submit context: {recv_text}" await websocket.send(response_text) # 服务器端主逻辑 # websocket 和 path 是该函数被回调时自动传过来的，不需要自己传 async def main_logic(websocket, path): await check_permit(websocket) await recv_msg(websocket) start_server = websockets.serve(main_logic, '0.0.0.0', 8765) asyncio.get_event_loop().run_until_complete(start_server) asyncio.get_event_loop().run_forever() #### client.py 客户端 import asyncio import websockets # 向服务器端认证，用户名密码通过才能退出循环 async def auth_system(websocket): while True: cred_text = input("please enter your username and password: ") await websocket.send(cred_text) response_str = await websocket.recv() if "congratulation" in response_str: return True # 向服务器端发送认证后的消息 async def send_msg(websocket): while True: _text = input("please enter your context: ") if _text == "exit": print(f'you have enter "exit", goodbye') await websocket.close(reason="user exit") return False await websocket.send(_text) recv_text = await websocket.recv() print(f"{recv_text}") # 客户端主逻辑 async def main_logic(): async with websockets.connect('ws://(server 公网 ip):8765') as websocket: await auth_system(websocket) await send_msg(websocket) asyncio.get_event_loop().run_until_complete(main_logic())