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='404'
    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 == "123":
            self.set_cookie('auth', '1')
            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=='1':
            self.render('manager.html')
        else:
            self.redirect('/login')

class LogoutHandler(tornado.web.RequestHandler):
    def get(self,*args, **kwargs):
        self.set_cookie('auth','0')
        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()