Flask.session在关闭浏览器后仍然存在 [英] Flask.session persisting after close browser

问题描述

我希望能够检测到自上次登录Flask站点以来用户是否已关闭浏览器.我已经读过Flask会话应该在关闭浏览器后到期，但是据我所知，会话数据存储在服务器上，并且在浏览器会话之间持续存在.当用户关闭浏览器时，如何清除所有会话数据?

I want to be able to detect if a user has closed a browser since last logging into a Flask site. I have read that Flask sessions are supposed to expire on closing the browser, but the session data is stored on the server as far as I can tell and is persisting across browser sessions. How can I clear all session data when the user closes the browser?

mainapp.py:

mainapp.py:

@mainapp.route('/')
def home():
    if 'user_name' in session:
        logger.debug( 'Logged in as {0}'.format(escape(session['user_name'])))
    return render_template('home.html')

userviews.py:

userviews.py:

@userviews.route("/login", methods=["GET", "POST"])
def login():
    form = LoginForm(request.form)
    if form.validate_on_submit():
        #get user from db
        session['user_name'] = user.user_name

setup.py:

app.secret_key = 'somethingreallysecret'

推荐答案

因为烧瓶会话使用Cookie，即使用户关闭了窗口，数据也会保留下来.您可以通过 Flask-SocketIO 跟踪关闭窗口的使用情况.

Because the flask session uses cookies, the data is persisted even if the user closes the window. You can track use closing the window with Flask-SocketIO.

如果要从会话中删除特定密钥:

If you want to remove a specific key from session:

from flask import session
from flask_socketio import SocketIO, emit
from flask.ext.login import current_user, logout_user

app = Flask(__name__)
app.config['SECRET_KEY'] = 'secret!'
socketio = SocketIO(app)

@socketio.on('disconnect')
def disconnect_user():
    logout_user()
    session.pop('yourkey', None)

这篇关于Flask.session在关闭浏览器后仍然存在的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！