usage
Flask of Session is very strange that he will put your SessionID is stored in the client's Cookie, the use is also very strange
Flask of the session is required secret_key
from flask import session app = Flask(__name__) app.secret_key = "henry"
secret_key actually used to encrypt the string, if not secret_key then open session in the instance of the app will throw an exception in the
from flask import Flask,render_template,request,session,redirect
app = Flask(__name__)
# 设置secret_key
app.secret_key = "123456"
app.debug = True
# app.config["DEBUG"] = True
@app.route('/login',methods=["POST","GET"])
def login():
if request.method == "GET":
return render_template("login.html")
if request.method == "POST":
username = request.form.get("username")
password = request.form.get("password")
if username == "henry" and password == "123456":
# 登录成功设置session
session["username"] = username
return redirect('index')
else:
return "404"
app.route @ ( '/ index')
DEF index ():
# check whether the logged-on user
IF Session.get ( "username"):
return "This is the index page"
the else:
return redirect ( 'the Login')
IF __name__ = = '__main__':
app.run ( "0.0.0.0", 9876)
What are cookies of session
cookies are stored in the session key by the encryption secret_key find session information corresponding to the user from the program memory by this flask key
