python开发实例之python使用Websocket库开发简单聊天工具实例详解(python+Websocket+JS)

 #! -*- coding: utf-8 -*- """ Info: Websocket 的使用示例 """ import asyncio import websockets websocket_users = set() # 检测客户端权限，用户名密码通过才能退出循环 async def check_user_permit(websocket): print("new websocket_users:", websocket) websocket_users.add(websocket) print("websocket_users list:", websocket_users) while True: recv_str = await websocket.recv() cred_dict = recv_str.split(":") if cred_dict[0] == "admin" and cred_dict[1] == "123456": response_str = "Congratulation, you have connect with server..." await websocket.send(response_str) print("Password is ok...") return True else: response_str = "Sorry, please input the username or password..." print("Password is wrong...") 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_user_msg(websocket): while True: recv_text = await websocket.recv() print("recv_text:", websocket.pong, recv_text) response_text = f"Server return: {recv_text}" print("response_text:", response_text) await websocket.send(response_text) # 服务器端主逻辑 async def run(websocket, path): while True: try: await check_user_permit(websocket) await recv_user_msg(websocket) except websockets.ConnectionClosed: print("ConnectionClosed...", path)  # 链接断开 print("websocket_users old:", websocket_users) websocket_users.remove(websocket) print("websocket_users new:", websocket_users) break except websockets.InvalidState: print("InvalidState...")  # 无效状态 break except Exception as e: print("Exception:", e) if __name__ == '__main__': print("127.0.0.1:8181 websocket...") asyncio.get_event_loop().run_until_complete(websockets.serve(run, "127.0.0.1", 8181)) asyncio.get_event_loop().run_forever() 

    
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