Add Redis or memcached-based session "third party" to the Tornado framework

Tornado no session, only Cookie_secret, which in some cases is not conducive to development. All we can do is add the function of session to tornado.

This article is about relying on third-party packages to implement. Later articles we can also write a set of their own.

Here are the steps:

1, installation package Pycket

$ pip Install Pycket

2, introducing the package when used

 from Import Sessionmixin

3, passed through handler (you can also create a basehandler and encapsulate it to basehandler. Here for simplicity, it is not encapsulated)

4, configuring in the configuration file

" "Redis Configuration" "        #settings = {        ## Cookie_secret must be set        #' Cookie_secret ': "2379874hsdhf0234990sdhsaiuofyasop977djdj",        #' xsrf_cookies ': True,        #' Debug ': False,        ## 1 Configuration pycket Note Don't forget to turn on Redis services        #' Pycket ': {        #' engine ': ' Redis ',        #' storage ': {        #' host ': ' localhost ',        #' Port ': 6379,        #' db_sessions ': ten,        #' db_notifications ': One by one,        #' max_connections ': 2 * *,        #         },        #' cookies ': {        ## Set Expiration Time        #' expires_days ': 2,        ## ' expires ': None, #秒        #         },        #     }        # }        " "Memcached Configuration" "Settings= {            'Cookie_secret':"2379874HSDHF0234990SDHSAIUOFYASOP977DJDJ",            'Pycket': {                'engine':'memcached',                'Storage': {                    'Servers': ('localhost:11211',)                },                'Cookies': {                    'expires_days': 120,                },            },        }

5, using

    defGet (self):#two ways to set upSelf.session.set ('Foo', ['Bar','Baz']) self.session['Test'] ='test!'        #two ways to get there        Printself.session['Test']        PrintSelf.session.get ('Foo')

Full code:

1 #--*--coding:utf-8--*--2 3 ImportTornado.web4 ImportTornado.httpserver5 ImportTornado.ioloop6 Importtornado.options7 ImportOs.path8  fromPycket.sessionImportsessionmixin9  fromTornado.optionsImportDefine, OptionsTenDefine"Port", default=8001, help="run on the given port", type=int) One  A  - classApplication (tornado.web.Application): -     def __init__(self): theHandlers = [ -(r"/", MainHandler), -         ] -         " " + Redis Configuration -         " " +         #settings = { A         ## Cookie_secret must be set at         #' Cookie_secret ': "2379874hsdhf0234990sdhsaiuofyasop977djdj", -         #' xsrf_cookies ': True, -         #' Debug ': False, -         ## 1 Configuration pycket Note Don't forget to turn on Redis services -         #' Pycket ': { -         #' engine ': ' Redis ', in         #' storage ': { -         #' host ': ' localhost ', to         #' Port ': 6379, +         #' db_sessions ': ten, -         #' db_notifications ': One by one, the         #' max_connections ': 2 * *, *         #         }, $         #' cookies ': {Panax Notoginseng         ## Set Expiration Time -         #' expires_days ': 2, the         ## ' expires ': None, #秒 +         #         }, A         #     } the         # } +         " " - Memcached Configuration $         " " $Settings = { -             'Cookie_secret':"2379874HSDHF0234990SDHSAIUOFYASOP977DJDJ", -             'Pycket': { the                 'engine':'memcached', -                 'Storage': {Wuyi                     'Servers': ('localhost:11211',) the                 }, -                 'Cookies': { Wu                     'expires_days': 120, -                 }, About             }, $         } -Tornado.web.Application.__init__(Self, handlers, * *settings) -  -  A classMainHandler (Tornado.web.RequestHandler, sessionmixin): +     defGet (self): the         #two ways to set up -Self.session.set ('Foo', ['Bar','Baz']) $self.session['Test'] ='test!' the  the         #two ways to get there the         Printself.session['Test'] the         PrintSelf.session.get ('Foo') -  in if __name__=="__main__": the Tornado.options.parse_command_line () theHttp_server =tornado.httpserver.HTTPServer (Application ()) About Http_server.listen (Options.port) theTornado.ioloop.IOLoop.instance (). Start ()

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Note: If you use Redis, make sure your redis is up. If you use Memcached, make sure Memcached is started

Add Redis or memcached-based session "third party" to the Tornado framework