1, session stored in the default browser in a cookie
Source
wsgi->app.__call__->wsgi_app->push->self.app.session_interface->session_interface = SecureCookieSessionInterface()->open_session和save_session
2. Change the session saved locations
a, download
pip3 install -i https://pypi.douban.com/simple flask-session
b, source code analysis
Session->self.init_app(app)->app.session_interface = self._get_interface(app)->session_interface
other
MemcachedSessionInterface
FileSystemSessionInterface
MongoDBSessionInterface
SqlAlchemySessionInterface
Specifically to see the source code
c, Example
import redis from flask import Flask, session # 1.导入模块 from flask_session import Session # from flask.sessions import SecureCookieSession # 原始 # from flask_session import RedisSessionInterface # 修改 app = Flask(__name__) # app.session_interface = SecureCookieSessionInterface() # app.session_interface = RedisSessionInterface() # 2.修改配置文件 app.config['SESSION_TYPE'] = 'redis' app.config['SESSION_REDIS'] = redis.Redis(host='ip', port=6379, password='密码') # 3.注册 Session(app) @app.route('/login') def login(): session['user'] = 'alex' return 'Hello' @app.route('/home') def index(): print(session.get('user')) return 'World' if __name__ == '__main__': app.run()