我正在構建一些基本功能。我現在正在做的其中之一是超時會話。我設定了PERMANENT_SESSION_LIFETIME = timedelta(minutes=20)，我發現它運行良好。
但我感到困惑的是如何告訴用戶用戶的會話由于使用閃存的會話生命周期而過期？或者有沒有辦法在用戶的會話過期時重定向？
下面是具體
樹
.
├── __init__.py
├── admin
│ ├── __init__.py
│ ├── forms.py
│ └── views.py
├── app.py
├── commands.py
├── compat.py
├── database.py
├── dataset
│ ├── __init__.py
│ ├── forms.py
│ ├── models.py
│ └── views.py
├── decorators.py
├── extensions.py
├── public
│ ├── __init__.py
│ ├── __pycache__
│ ├── forms.py
│ └── views.py
├── settings.py
設定.py
from datetime import timedelta
from environs import Env
env = Env()
env.read_env()
ENV = env.str("FLASK_ENV", default="production")
DEBUG = ENV == "development"
SQLALCHEMY_DATABASE_URI = env.str("DATABASE_URL")
SECRET_KEY = env.str("SECRET_KEY")
SEND_FILE_MAX_AGE_DEFAULT = env.int("SEND_FILE_MAX_AGE_DEFAULT")
BCRYPT_LOG_ROUNDS = env.int("BCRYPT_LOG_ROUNDS", default=13)
DEBUG_TB_ENABLED = DEBUG
DEBUG_TB_INTERCEPT_REDIRECTS = False
CACHE_TYPE = "simple" # Can be "memcached", "redis", etc.
SQLALCHEMY_TRACK_MODIFICATIONS = False
MONGODB_URI = env.str("MONGODB_URI")
MONGODB_DATABASE_NAME = env.str("MONGODB_DATABASE_NAME")
UPLOAD_FOLDER = env.str("UPLOAD_FOLDER")
PERMANENT_SESSION_LIFETIME = timedelta(minutes=100)
應用程式
# -*- coding: utf-8 -*-
"""The app module, containing the app factory function."""
import logging
import sys
from flask import Flask, render_template
from web import admin, commands, public, user, dataset
from web.extensions import (
bcrypt,
cache,
csrf_protect,
db,
debug_toolbar,
flask_static_digest,
login_manager,
migrate,
)
def create_app(config_object="web.settings"):
"""Create application factory
:param config_object: The configuration object to use.
"""
app = Flask(__name__.split(".")[0])
app.config.from_object(config_object)
register_extensions(app)
register_blueprints(app)
register_errorhandlers(app)
register_shellcontext(app)
register_commands(app)
configure_logger(app)
return app
``
uj5u.com熱心網友回復：
使用裝飾器before_request，它在每個請求之前運行。
https://flask.palletsprojects.com/en/2.0.x/api/#flask.Flask.before_request
@app.before_request
def load_user():
if "user_id" in session:
g.user = db.session.get(session["user_id"])
在您的情況下，請參考此答案。
@app.before_request
def before_request()
now = datetime.datetime.now()
try:
last_active = session['last_active']
delta = now - last_active
if delta.seconds > 1800:
session['last_active'] = now
return logout('Your session has expired after 30 minutes, you have been logged out')
except:
pass
try:
session['last_active'] = now
except:
pass
https://stackoverflow.com/a/48768278/1474183
uj5u.com熱心網友回復：
我從這里參考了這段代碼。
login_mgr = LoginManager(app)
login_mgr.login_view = 'login'
login_mgr.refresh_view = 'relogin'
login_mgr.needs_refresh_message = (u"Session timedout, please re-login")
login_mgr.needs_refresh_message_category = "info"
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