from flask import Blueprint,render_template,redirect,views,request,session

user = Blueprint("user",__name__)

class User(views.MethodView):
    def get(self):
        return render_template("login.html")

    def post(self):
        username = request.form.get("username")
        password = request.form.get("password")
        if username == "henry" and password == "123":
            session["username"] = username
            uname = session.get("username")
            print(uname)
            return redirect("home")
        else:
            return "username or password error"
user.add_url_rule("/login",endpoint=None,view_func=User.as_view(name="login"))

from flask import Flask,request,redirect,session
from flask_session import Session
from redis import Redis
from user_login.login_blue import user
app = Flask(__name__)
app.register_blueprint(user)

app.config["SESSION_TYPE"]="redis"
app.config["SESSION_REDIS"]=Redis(host="192.168.61.138",port=6380,db=2,password="root")

Session(app)

@app.before_request  # 相当于django的中间件
def auth():
    # 白名单放行
    if request.path == "/login":
        return None
    # 判断是否是登录用户
    if session.get("username"):
        return None
    else:
        # 如果不是登录页面就会跳转到登录页面
        return redirect("login")

@app.route("/home")
def home():
    return "这是homo页面"

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