python使用tornado实现登录和登出

(编辑：jimmy 日期: 2026/1/20 浏览：3 次 )

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" 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>

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。

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