Flask-Websocket_flask-sockets

作者：爱喝兽奶帝天荒 | 2024-07-23 18:27:05

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flask-sockets

文章目录

项目配置
一、服务端
二、web客户端
三、python客户端
总结

项目配置

系统:windows
Flask 1.1.2
Flask-Sockets 0.2.1
Werkzeug 1.0.1

提示：以下是本篇文章正文内容，下面案例可供参考

一、服务端

from flask import Flask
from flask_sockets import Sockets
import time
app = Flask(__name__)
sockets = Sockets(app)

@sockets.route('/echo')
def echo_socket(ws):
    while not ws.closed:
        now = time.strftime("%Y-%m-%d %H:%M:%S", time.localtime())
        ws.send(now)  #发送数据
        time.sleep(0.5)

@app.route('/')
def hello():
    return 'Hello World!'

if __name__ == "__main__":
    from gevent import pywsgi
    from geventwebsocket.handler import WebSocketHandler
    server = pywsgi.WSGIServer(('127.0.0.1', int(5000)), app, handler_class=WebSocketHandler)
    print('server start')
    server.serve_forever()
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二、web客户端

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <script src="https://cdn.bootcss.com/jquery/3.2.0/jquery.js"></script>
</head>
<body>
    <div id="time"></div>
    <script>
            var ws = new WebSocket("ws://127.0.0.1:5000/echo");
            ws.onmessage = function (event) {
                content = document.createTextNode(event.data);
                $("#time").html(content);
            };
    </script>
    </body>
</html>
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运行效果:
在这里插入图片描述

三、python客户端

import websockets
import asyncio

async def hello():
    async with websockets.connect("ws://127.0.0.1:5000/echo")as ws:
        while True:
            data = await ws.recv()
            await ws.send("Hello, World")
            await asyncio.sleep(0.5)
            print ("Received:'%s'" % data)

loop = asyncio.get_event_loop()
loop.run_until_complete(hello())
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运行效果:

Received:'2022-01-26 20:51:34'
Received:'2022-01-26 20:51:34'
Received:'2022-01-26 20:51:35'
Received:'2022-01-26 20:51:35'
Received:'2022-01-26 20:51:36'
Received:'2022-01-26 20:51:36'
Received:'2022-01-26 20:51:37'
Received:'2022-01-26 20:51:37'
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总结

版本安装错误会导致很多问题，请按照以上配置进行测试。

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