Tornado-第三篇-tornado支持websocket协议

from tornado.ioloop import IOLoop
from tornado.web import RequestHandler
from tornado.websocket import WebSocketHandler
from tornado.web import Application

CLIENT_LIST = []


class MsgHandler(WebSocketHandler):
    def open(self):
        CLIENT_LIST.append(self)

    def on_message(self, message):
        for obj in CLIENT_LIST:
            obj.write_message(message)

    def on_close(self):
        CLIENT_LIST.remove(self)


# 页面函数
class HomeHandler(RequestHandler):
    def get(self, *args, **kwargs):
        self.render(‘index.html‘)


# 配置
settings = {
    ‘template_path‘: ‘templates‘,
    ‘cookie_secret‘: ‘asq3wuraldf‘
}
# 页面对应函数
application = Application([
    (‘/home‘, HomeHandler),
    (‘/msg‘, MsgHandler),
], **settings)
if __name__ == ‘__main__‘:
    application.listen(8888)
    IOLoop.instance().start()