flask-session是flask框架的session組件，由于原來flask內置session使用簽名cookie保存，該組件則將支持session保存到多個地方，如：

安裝

pip3 install flask-session 

存儲方式

redis

#!/usr/bin/env python# -*- coding:utf-8 -import redisfrom flask import Flask, sessionfrom flask_session import Session app = Flask(__name__)app.debug = Trueapp.secret_key = 'xxxx' app.config['SESSION_TYPE'] = 'redis' # session類型為redisapp.config['SESSION_PERMANENT'] = False # 如果設置為True，則關閉瀏覽器session就失效。app.config['SESSION_USE_SIGNER'] = False # 是否對發送到瀏覽器上session的cookie值進行加密app.config['SESSION_KEY_PREFIX'] = 'session:' # 保存到session中的值的前綴app.config['SESSION_REDIS'] = redis.Redis(host='127.0.0.1', port='6379', password='123123') # 用于連接redis的配置 Session(app) @app.route('/index')def index():  session['k1'] = 'v1'  return 'xx' if __name__ == '__main__':  app.run() 

memcached

#!/usr/bin/env python# -*- coding:utf-8 -import redisfrom flask import Flask, sessionfrom flask_session import Sessionimport memcache app = Flask(__name__)app.debug = Trueapp.secret_key = 'xxxx' app.config['SESSION_TYPE'] = 'memcached' # session類型為redisapp.config['SESSION_PERMANENT'] = True # 如果設置為True，則關閉瀏覽器session就失效。app.config['SESSION_USE_SIGNER'] = False # 是否對發送到瀏覽器上session的cookie值進行加密app.config['SESSION_KEY_PREFIX'] = 'session:' # 保存到session中的值的前綴app.config['SESSION_MEMCACHED'] = memcache.Client(['10.211.55.4:12000'])  Session(app)  @app.route('/index')def index():  session['k1'] = 'v1'  return 'xx' if __name__ == '__main__':  app.run() 

filesystem

#!/usr/bin/env python# -*- coding:utf-8 -import redisfrom flask import Flask, sessionfrom flask_session import Session app = Flask(__name__)app.debug = Trueapp.secret_key = 'xxxx' app.config['SESSION_TYPE'] = 'filesystem' # session類型為redisapp.config[  'SESSION_FILE_DIR'] = '/Users/wupeiqi/PycharmProjects/grocery/96.Flask新課程/組件/2.flask-session' # session類型為redisapp.config['SESSION_FILE_THRESHOLD'] = 500 # 存儲session的個數如果大于這個值時，就要開始進行刪除了app.config['SESSION_FILE_MODE'] = 384 # 文件權限類型 app.config['SESSION_PERMANENT'] = True # 如果設置為True，則關閉瀏覽器session就失效。app.config['SESSION_USE_SIGNER'] = False # 是否對發送到瀏覽器上session的cookie值進行加密app.config['SESSION_KEY_PREFIX'] = 'session:' # 保存到session中的值的前綴 Session(app) @app.route('/index')def index():  session['k1'] = 'v1'  session['k2'] = 'v1'  return 'xx' if __name__ == '__main__':  app.run() 

mongodb

#!/usr/bin/env python# -*- coding:utf-8 -import redisfrom flask import Flask, sessionfrom flask_session import Sessionimport pymongoapp = Flask(__name__)app.debug = Trueapp.secret_key = 'xxxx' app.config['SESSION_TYPE'] = 'mongodb' # session類型為redis app.config['SESSION_MONGODB'] = pymongo.MongoClient()app.config['SESSION_MONGODB_DB'] = 'mongo的db名稱（數據庫名稱）'app.config['SESSION_MONGODB_COLLECT'] = 'mongo的collect名稱（表名稱）' app.config['SESSION_PERMANENT'] = True # 如果設置為True，則關閉瀏覽器session就失效。app.config['SESSION_USE_SIGNER'] = False # 是否對發送到瀏覽器上session的cookie值進行加密app.config['SESSION_KEY_PREFIX'] = 'session:' # 保存到session中的值的前綴 Session(app) @app.route('/index')def index():  session['k1'] = 'v1'  session['k2'] = 'v1'  return 'xx' if __name__ == '__main__':  app.run()