1.更新User对象，设置对内的_password

class User(db.Model):

    __tablename__ = 'user' 

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

 

2.编写对外的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，赋值

        self._password = generate_password_hash(row_password)

 

3.密码验证方法：

    def check_password(self, row_password): #密码验证

        result = check_password_hash(self._password,row_password)

        return result

 

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))    @property    def password(self):          return self.password    @password.setter    def password(self, row_password):        self._password = generate_password_hash(row_password)     def check_password(self, row_password):        result = check_password_hash(self._password, row_password)        return result

　　

4.登录验证：

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

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

        if user:

            if user.check_password(password1):

@app.route('/login/', methods=['GET', 'POST'])def login():    if request.method == 'GET':        return render_template('login.html')    else:        username = request.form.get('usern')        password = request.form.get('password')        user = User.query.filter(User.username == username).first()        if user:            if user.check_password(password):                session['user'] = username                session.permanent = True                return redirect(url_for('index'))            else:                return '密码错误'        else:            return '用户不存在'