因为我们发短信(http)久了,所以我们希望有电话(websocket);有了电话之后,我们可以愉悦交通(双工通信),所以我们说着一句一句话(网络的一个一个包);为了能让对方清楚理解我们的意思,所以我们说的话阴阳顿挫,稍有停顿(包的长度),好让对方get到我们的点。
先安装websocket依赖:
pip install websockets
websocket服务端:
#!/usr/bin/env pythonimport asyncio
import websocketsasync def echo(websocket):while True:name = await websocket.recv()print(f"接收到消息:{name}")replay = f"Hello {name}"await websocket.send(replay)print(f"发送消息结束")async def main():async with websockets.serve(echo, "localhost", 8765):print("服务端启动成功:ws://localhost:8765")await asyncio.Future() # run foreverasyncio.run(main())
websocket客户端:
#!/usr/bin/env pythonimport asyncio
import time
import websocketsasync def hello():async with websockets.connect("ws://localhost:8765") as websocket:while True:await websocket.send("Hello world!")message = await websocket.recv()print(f"Received: {message}")time.sleep(1)asyncio.get_event_loop().run_until_complete(hello())
先运行服务端,然后运行客户端:
然后启动客户端:
或者也可以使用postman连接: