Flask-login无法进行身份验证

Question

我确信我写的creditinals是真的，在控制台上，它会将我重定向到仪表板，但之后它会将我重定向到登录页面。为了解决这个问题，我试着清除cookie，但是没有修复。毕竟，我试图在登录后打印用户，结果返回AnonymousUserMixin，所以我认为问题出在flask-login或sqlalchemy上

class User(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    username = db.Column(db.String(64), unique=True)
    password = db.Column(db.String(64), unique=False)

    def __init__(self, username, password, tFAt):
        self.username = username
        self.password = password

    def is_authenticated(self):
        return True

    def is_active(self):
        return True

    def is_anonymous(self):
        return False

    def get_id(self):
        return str(self.id)


@login_manager.user_loader
def load_user(username):
    return User.query.filter_by(username = username).first()


@login_manager.unauthorized_handler
def unauthorized():
    return redirect(url_for("login"))


@app.route("/login", methods=["GET", "POST"])
def login():
    if request.method == "POST":
        username = request.form.get("username")
        password = request.form.get("password")
        c_user = User.query.filter_by(username=username, password=password).first()
        if c_user is None:
            return redirect(url_for("login"))
        login_user(c_user)
        return redirect(url_for("dashboard"))
    else:
        return render_template("login.html")


@app.route("/dashboard")
@login_required
def dashboard():
    return render_template("dashboard.html")

if __name__ == "__main__":
    app.secret_key = "ABCD"
    app.run("0.0.0.0", 5555, debug=True)

Answer 1

我刚刚通过改变这个来修复它

def load_user(username):
    return User.query.filter_by(username = username).first()

至

def load_user(id):
    return User.query.filter_by(id = id).first()

因为在原始代码中返回

def get_id(self):
        return str(self.id)

它必须与您返回的内容相同，For more information