flask-session

Posted 2021-03-04 baohanblog

flask-session

作用：将默认保存的签名cookie中的值 保存到 redis/memcached/file/Mongodb/SQLAlchemy

安装：pip3 install flask-session

使用方式一

from flask import Flask,session
from flask_session import RedisSessionInterface
import redis
app = Flask(__name__)
conn = redis.Redis(host=‘127.0.0.1‘,port=6379,password="Admin123",db=4)

# use_signer设置为True,就必须要写密钥，为False就不需要。默认为False
# permanent设置为True如果为表示关闭浏览器不失效，默认为True
app.session_interface = RedisSessionInterface(conn,key_prefix="xxx",use_signer=True,permanent=True)

@app.route("/")
def hello_world():
    session[‘name‘] = ‘xxx‘
    return "hello world"

@app.route("/index")
def index():
    print(session[‘name‘])
    return "ok"

if __name__ == ‘__main__‘:
    app.run()

使用方式二

from redis import Redis
from flask import Flask,session
from flask_session import Session
app = Flask(__name__)

app.config[‘SESSION_TYPE‘] = ‘redis‘

app.config[‘SESSION_REDIS‘] = Redis(host=‘127.0.0.1‘,port=‘6379‘,password="Admin123")

Session(app)

@app.route("/")
def index():
    session[‘name‘] = "tank"
    return "ok"

@app.route("/index")
def index1():
    print(session[‘name‘])
    return "ok"

if __name__ == ‘__main__‘:
    app.run()