import tornado.web

import tornado.ioloop

import tornado.httpserver

import tornado.options

import os

import datetime

from tornado.web import RequestHandler

from tornado.options import define, options

from tornado.websocket import WebSocketHandler

define("port", default=8000, type=int)

class IndexHandler(RequestHandler):

    def get(self):

        self.render("index.html")

class ChatHandler(WebSocketHandler):

    cli = set()  # 用来存放在线用户的容器

    def open(self):

        print(self.request)

        self.cli.add(self)  # 建立连接后添加用户到容器中

        for c in self.cli:  # 向已在线用户发送消息

            c.write_message(u"[%s]-[%s]-进入聊天室" % (self.request.remote_ip, datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")))

    def on_message(self, message):

        for c in self.cli:  # 向在线用户广播消息

            c.write_message(u"[%s]-[%s]-说：%s" % (self.request.remote_ip, datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S"), message))

    def on_close(self):

        self.cli.remove(self) # 用户关闭连接后从容器中移除用户

        for c in self.cli:

            c.write_message(u"[%s]-[%s]-离开聊天室" % (self.request.remote_ip, datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S")))

    def check_origin(self, origin):

        return True  # 允许WebSocket的跨域请求

if __name__ == '__main__':

    tornado.options.parse_command_line()

    app = tornado.web.Application([

            (r"/", IndexHandler),

            (r"/chat", ChatHandler),

        ],

        static_path = os.path.join(os.path.dirname(__file__), "static"),

        template_path = os.path.join(os.path.dirname(__file__), "template"),

        debug = True

        )

    http_server = tornado.httpserver.HTTPServer(app)

    http_server.listen(options.port)

    tornado.ioloop.IOLoop.current().start()

<!DOCTYPE html>

<html>

<head>

    <meta charset="utf-8">

    <title>聊天室</title>

</head>

<style type="text/css">

    #char{

        margin: 0 auto;

        height:500px;

        width: 800px;

    }

    #contents{

        height:500px;

        width: 800px;

        border:1px solid #cccccc;

        border-radius:3px;

        box-shadow: 2px 2px 5px #888888;

        margin-bottom: 10px;

    }

    .input_send #msg{

        height:20px;

        width: 757px;

    }

</style>

<body>

    <div id="char" >

        <div id="contents"></div>

        <div class="input_send">

                <textarea id="msg"></textarea>

                <a href="javascript:;" id="send_mesage" onclick="sendMsg()">发送</a>

        </div>

    </div>

    <script src="{{static_url('js/jquery.min.js')}}"></script>

    <script type="text/javascript">

        var ws = new WebSocket("ws://192.168.199.182:9000/chat");

        ws.onmessage = function(e) {

            $("#contents").append("<p>" + e.data + "</p>");

        }

        function sendMsg() {

            var msg = $("#msg").val();

            ws.send(msg);

            $("#msg").val("");

        }

    </script>

</body>

</html>