1.更新User對象，設置對內的_password

class User(db.Model):

__tablename__ = ‘user‘

_password = db.Column(db.String(200), nullable=False) #內部使用

class User(db.Model):
    __tablename__ = ‘user‘
    id = db.Column(db.Integer, primary_key=True, autoincrement=True)
    username = db.Column(db.String(20), nullable=False)
    _password 
 
= db.Column(db.String(200), nullable=False)
    nickname = db.Column(db.String(50))

2.編寫對外的password

from werkzeug.security import generate_password_hash, check_password_hash

@property

def password(self): #外部使用，取值

return self._password

@password.setter

def password(self, row_password):#外部使用，賦值

self._password = generate_password_hash(row_password)

from werkzeug.security import generate_password_hash, check_password_hash
@property
    def password(self):
        return self._password

    @password.setter
    def password(self, row_password):
        self._password = generate_password_hash(row_password)
 

3.密碼驗證方法：

def check_password(self, row_password): #密碼驗證

result = check_password_hash(self._password,row_password)

return result

def check_password(self, row_password):
        result = check_password_hash(self._password, row_password)
        return result

4.登錄驗證：

password1 = request.form.get(‘password‘)

user = User.query.filter(User.username == username).first()

if user:

if user.check_password(password1):

def login():
    if request.method == ‘GET‘:
        return render_template(‘login.html‘)
    else:
        usern = request.form.get(‘username‘)
        passw = request.form.get(‘password‘)
        user = User.query.filter(User.username == usern).first()
        if user:
            if user.check_password(passw):
                session[‘user‘] = usern
                session[‘user_id‘] = user.id
                session.permanent = True
                return redirect(url_for(‘index‘))
            else:
                 return u‘password error‘
        else:
             return u‘error username‘

密碼保護