python使用tornado实现登录和登出_Python

python使用tornado实现登录和登出

2021-03-23 00:38bayron Python

这篇文章主要为大家详细介绍了python使用tornado实现登录和登出，具有一定的参考价值，感兴趣的小伙伴们可以参考一下

本文实例为大家分享了tornado实现登录和登出的具体代码，供大家参考，具体内容如下

main.py如下：

									import tornado.httpserver

									import tornado.ioloop

									import tornado.web

									import tornado.options

									import os.path

									from tornado.options import define, options

									define("port", default=8000, help="run on the given port", type=int)

									class BaseHandler(tornado.web.RequestHandler):

									  def get_current_user(self):

									    return self.get_secure_cookie("username")

									class LoginHandler(BaseHandler):

									  def get(self):

									    self.render('login.html')

									  def post(self):

									    self.set_secure_cookie("username", self.get_argument("username"))

									    self.redirect("/")

									class WelcomeHandler(BaseHandler):

									  @tornado.web.authenticated

									  def get(self):

									    self.render('index.html', user=self.current_user)

									class LogoutHandler(BaseHandler):

									  def post(self):

									    if (self.get_argument("logout", None)):

									      self.clear_cookie("username")

									    self.redirect("/")

									if __name__ == "__main__":

									  tornado.options.parse_command_line()

									  settings = {

									    "template_path": os.path.join(os.path.dirname(__file__), "templates"),

									    "cookie_secret": "bZJc2sWbQLKos6GkHn/VB9oXwQt8S0R0kRvJ5/xJ89E=",

									    "login_url": "/login"

									  }

									  application = tornado.web.Application([

									    (r'/', WelcomeHandler),

									    (r'/login', LoginHandler),

									    (r'/logout', LogoutHandler)

									  ],debug= True,**settings)

									  http_server = tornado.httpserver.HTTPServer(application)

									  http_server.listen(options.port)

									  tornado.ioloop.IOLoop.instance().start()

index.html

									<html>

									<head>

									</head>

									<body>

									 <p>Hello {{ user }}</p>

									 <form action="/logout?logout=1" method="post">

									 <input type="submit" value="Log out"></br>

									</body>

									</html>

									<html>

									<head>

									</head>

									<body>

									 <h>Login Page</h>

									 <form action="/login" method="post">Name:<input type="text" name="username"></br>

									 <input type="submit" value="Sign in"></br>

									 </form>

									</body>

									</html>