初始tornado框架

2.7版本的一个简单的框架

 from wsgiref.simple_server import make_server

 def new():
     return 'new'
 def index():
     return 'index'

 urls={'/new':new,
       '/index':index
       }

 def Runserver(environ,start_response):
     start_response('200 OK',[('Content-Type','text/html')])
     url=environ['PATH_INFO']
     if url in urls.keys():
         ret=urls[url]()
     else:
         ret=''
     return ret

 if __name__=="__main__":
     httpd=make_server('',8000,Runserver)
     httpd.serve_forever()

一个简单的tornado脚本

 #!/usr/bin/env python
 # -*- coding:utf-8 -*-
 import tornado.ioloop
 import tornado.web

 is_login=False

 class IndexHandler(tornado.web.RequestHandler):
     def get(self):
         self.render('index.html')

 class LoginHandler(tornado.web.RequestHandler):
     def get(self, *args, **kwargs):
         self.render('login.html',status='')

     def post(self, *args, **kwargs):
         username = self.get_argument('username',None)
         password = self.get_argument('password',None)
         if username == 'dalong' and password == "":
             self.set_cookie('auth', '')
             self.redirect('/manager')
         else:
             self.render('login.html',status='登陆失败')
 class ManagerHandler(tornado.web.RequestHandler):
     def get(self,*args, **kwargs):
         co=self.get_cookie('auth')
         print(co)
         if co=='':
             self.render('manager.html')
         else:
             self.redirect('/login')

 class LogoutHandler(tornado.web.RequestHandler):
     def get(self,*args, **kwargs):
         self.set_cookie('auth','')
         self.redirect('/login')

 settings = {
     'template_path': 'views', # 模板路径的配置
 }

 # 路由映射，路由系统
 application = tornado.web.Application([
     # (r"/index", MainHandler),
     (r"/index", IndexHandler),
     (r"/login", LoginHandler),
     (r"/manager", ManagerHandler),
     (r"/logout", LogoutHandler),
 ], **settings)

 if __name__ == "__main__":
     # socket运行起来
     application.listen(8888)
     tornado.ioloop.IOLoop.instance().start()