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.密码验证的方法：

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

        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):

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(20))    @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

@app.route("/login",methods=["GET","POST"])def login():    if request.method == "GET":      return render_template("login.html")    else:        usern = request.form.get("usern")        passw = request.form.get("userp")        user = User.query.filter(User.username==usern).first()        if user:            if user.check_password(passw):                session["user"] = usern                session["id"] = user.id                session.permanent = True                return redirect(url_for("first"))            else:                return "密码错误，请重新输入！"        else:            return "用户名不存在！"