tornado的websocket

最新推荐文章于 2025-05-30 13:19:44 发布

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最新推荐文章于 2025-05-30 13:19:44 发布

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分类专栏： linux 文章标签： websocket

本文链接：https://blog.youkuaiyun.com/leafrenchleaf/article/details/84690537

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本文介绍了一个简单的WebSocket聊天室应用的实现方法。客户端使用HTML和JavaScript建立WebSocket连接，并通过按钮发送消息。服务端采用Python和Tornado框架处理WebSocket连接，实现消息广播功能。

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http://haoningabc.iteye.com/blog/2154526
参考
http://www.tuicool.com/articles/niuqiiA
http://www.docin.com/p-278084273.html
http://www.tuicool.com/articles/QniyIz
客户端：
index.html



<html>
<head>
<script type="text/javascript">
var ws = new WebSocket("ws://182.254.155.153:8000/chat");
ws.onmessage = function(event) {
  console.log(event);
}
ws.onopen = function() {
        console.log('open');
};
ws.onclose = function() {
    console.log('Closed! ');
}
function send() {
  ws.send(document.getElementById('chat').value );
}
</script>
</head>

<body>
  <div>
    hello
    <input id="chat">
    <button  onclick="send()">send</button>
  </div>    
</body>
</html>

服务端：



#!/usr/bin/python
#coding:utf-8
import os.path

import tornado.httpserver
import tornado.web
import tornado.ioloop
import tornado.options
import tornado.httpclient
import tornado.websocket

import json
class IndexHandler(tornado.web.RequestHandler):
    def get(self):
      self.render("index.html")

class SocketHandler(tornado.websocket.WebSocketHandler):
    """docstring for SocketHandler"""
    clients = set()

    @staticmethod
    def send_to_all(message):
        for c in SocketHandler.clients:
            c.write_message(json.dumps(message))

    def open(self):
        self.write_message(json.dumps({
        'type': 'sys',
        'message': 'Welcome to WebSocket',
        }))
        SocketHandler.send_to_all({
        'type': 'sys',
        'message': str(id(self)) + ' has joined',
        })
        SocketHandler.clients.add(self)

    def on_close(self):
        SocketHandler.clients.remove(self)
        SocketHandler.send_to_all({
        'type': 'sys',
        'message': str(id(self)) + ' has left',
        })

    def on_message(self, message):
      SocketHandler.send_to_all({
        'type': 'user',
        'id': id(self),
        'message': message,
      })

##MAIN
if __name__ == '__main__':
    app = tornado.web.Application(
      handlers=[
        (r"/", IndexHandler),
        (r"/chat", SocketHandler)
      ],
    debug = True,
    #  template_path = os.path.join(os.path.dirname(__file__), "templates"),
    #     static_path = os.path.join(os.path.dirname(__file__), "static")
    )
    app.listen(8000)
    tornado.ioloop.IOLoop.instance().start()

apt-get install python-virtualenv