Getting Started with Python web py (12)-Implementing a User Login forum

has already introduced how to register the user, when the user registers successfully, needs to use the account to log in, this login process is how realizes.
The first is to have a login connection, through the first click on the login, will enter the login URL connection: Http://127.0.0.1:8080/login, when you click on the Web page, you will be in the WEBPY application process this connection:
'/login ', ' login ', #登录

Yes, this is the place to associate, and then go to the login handler class:

Class Login:
    def get (self): return
        titled_render (' login '). Login ()

    def POST (self):
        i = web.input ( Username= ', password= ')
        user_id = model. User (). Login (I.username, I.password)
        if user_id:
            # Set Cookie
            web.setcookie (' user_id ', str (user_id), Settings. Cookie_expires)
            raise Web.seeother ('/user/%d '% user_id)
        else: return
            Titled_render (). Failed (' Logon verification failed, Please check that the account and password are correct ")

The login page will be displayed first, as follows:

Here, in fact, is the method of calling get, More directly using the login.html template to return to the browser, when you enter the user name and password, you will post the data from the browser sent to the server, and then in the Webpy can receive the user name and password, respectively, in I.username, In the I.password. Call model. User (). The login function confirms the existence of the user by means of a database, and the password is correct, and if it is correct, it can be stored in the browser's cookie, and all subsequent processing can be judged according to the ID in the cookie.

Supporting the source code in: http://download.csdn.net/download/caimouse/10255258

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