tornado 登录状态保持

程序员文章站 2022-07-15 12:13:15

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1. pip 安装pycket 和 redis

pycket： tornado中配置redis信息以及处理session信息

2. 登录页面

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>

    <link rel="stylesheet" href="http://at.alicdn.com/t/font_766584_c92pmac2r1k.css">
    <style>
        body {
            background: #c1c1c1;
        }

        .contain {
            width: 100%;
            padding-top: 50px;
        }

        .contain .login-contain {
            width: 400px;
            margin: auto;
            background: white;
            padding: 0 20px;
        }

        .contain .login-contain .login-top {
            line-height: 60px;
            height: 60px;
            border-bottom: 1px solid #ddd;
        }

        .contain .login-contain .login-top h2 {
            float: left;
            border-bottom: 5px solid blue;
            height: 60px;
            box-sizing: border-box;
        }

        .contain .login-contain .login-top a {
            float: right;
        }

        .contain .login-contain form div {
            margin-top: 20px;
        }

        .contain .login-contain form div input {
            width: 100%;
            height: 50px;
            padding-left: 10px;
            box-sizing: border-box;
        }

        .contain .login-contain form div label input {
            width: 15px;
            height: 15px;
            vertical-align: -2px;
        }

        .contain .login-contain form div a {
            float: right;
            color: #dddddd;
        }

        .contain .login-contain form div input[type=submit] {
            background: skyblue;
            margin-bottom: 20px;
        }
    </style>
</head>
<body>

<!--main star-->
<div class="contain">
    <div class="login-contain">
        <div class="login-top">
            <h2>请登录</h2>
{#            <a href="reg.html">立即注册&gt;</a>#}
        </div>
        <form action="/login" method="post">
            <div><input type="text" placeholder="请输入你的账号" name="username"></div>
            <div><input type="password" placeholder="请输入你的密码" name="password"></div>
            <div>
                <label><input type="checkbox">七天内免登录</label>
                <a href="javascript:void(0);">忘记密码</a>
            </div>
            <div><input type="submit" value="登录"></div>
        </form>
    </div>
</div>

<script>

</script>
</body>
</html>

3. web 服务


import tornado.web
import tornado.options
from tornado.options import define, options
from tornado.web import RequestHandler
import tornado.httpserver
import tornado.ioloop

from pycket.session import SessionMixin

define('port', default=8080, help='run port', type=int)


class LoginHandler(RequestHandler, SessionMixin):
    def get(self):
        self.render('login.html')

    def post(self):
        username = self.get_argument('username')
        password = self.get_argument('password')
        # 保存cookie信息到redis数据库
        self.session.set('username', username)
        # 获取cookie信息
        print(self.session.get('username'))

        self.write('<div>用户名: {}</div>'.format(username) + '<div>密码: {}</div>'.format(password))


class Application(tornado.web.Application):
    def __init__(self):
        handlers = [
            (r'/login', LoginHandler),

        ]
        settings = dict(
            debug=True,
            template_path='template',
            static_path='static',

            # 加密cookie
            cookie_secret='qwe123',
            # redis配置
            pycket={
                'engine': 'redis',
                'storage': {
                    'host': 'localhost',
                    'port': 6379,
                    # redis 第5个库
                    'db_sessions': 5,
                    'max_connections': 2 ** 30
                },
                'cookies': {
                    # 设置cookie过期时间
                    'expires_days': 30
                }
            }

        )
        super(Application, self).__init__(handlers, **settings)

app = Application()


if __name__ == '__main__':
    tornado.options.parse_command_line()
    print('监听端口: ', options.port)
    server = tornado.httpserver.HTTPServer(app)
    server.listen(options.port)
    tornado.ioloop.IOLoop.instance().start()