以下实例有点像广播通讯，支持多个客户端连接
代码参考别人的，稍微做了一点点修改
服务器端 websocket_demo.py
# -*- coding: utf-8 -*-
from __future__ import unicode_literals, print_function
from datetime import datetime
import os
import tornado
from tornado.options import define, options
from tornado.web import RequestHandler
from tornado.websocket import WebSocketHandler
# 设置服务器端口
define("port", default=2222, type=int)
class IndexHandler(RequestHandler):
def get(self):
self.render("chat-client.html")
class ChatHandler(WebSocketHandler):
users = set() # 用来存放在线用户的容器
def open(self):
# 建立连接后添加用户到容器中
self.users.add(self)
# 向已在线用户发送消息
for user in self.users:
remote_ip, port = self.request.connection.context.address
now = datetime.now().strftime("%H:%M:%S")
user.write_message("[{}][{}:{}]-进入聊天室".format(now, remote_ip, port))
def on_message(self, message):
# 向在线用户广播消息
now = datetime.now().strftime("%H:%M:%S")
remote_ip, port = self.request.connection.context.address
for user in self.users:
user.write_message("[{}][{}:{}] {}".format(now, remote_ip, port, message))
def on_close(self):
# 用户关闭连接后从容器中移除用户
now = datetime.now().strftime("%H:%M:%S")
remote_ip, port = self.request.connection.context.address
self.users.remove(self)
for user in self.users:
user.write_message("[{}][{}:{}]-离开聊天室".format(now, remote_ip, port))
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()
客户端 template/chat-client.html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>聊天室</title>
</head>
<body>
<div id="contents" style="height:500px;overflow:auto;"></div>
<div>
<textarea id="msg"></textarea>
<a href="javascript:;" onclick="sendMsg()">发送</a>
</div>
<!-- jQuery -->
<script src="https://cdn.staticfile.org/jquery/3.3.1/jquery.min.js"></script>
<script type="text/javascript">
var ws = new WebSocket("ws://127.0.0.1:2222/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>
通讯效果，打开两个网页
标签：__,WebSocket,Python,self,Tornado,tornado,import,now,port From： https://www.cnblogs.com/zhaoyingjie/p/17663157.html