flask框架基础
from werkzeug.security import generate_password_hash, check_password_hash
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class User(UserMixin, db.Model):
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id = db.Column(db.Integer, primary_key=True)
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username = db.Column(db.String(80), unique=True, nullable=False)
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email = db.Column(db.String(120), unique=True, nullable=False)
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password_hash = db.Column(db.String(128))
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def set_password(self, password):
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self.password_hash = generate_password_hash(password)
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def check_password(self, password):
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return check_password_hash(self.password_hash, password)
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```
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UserMixin类提供了is_authenticated、is_active等必要方法的默认实现。set_password()方法用于生成密码的哈希值，check_password()方法用于验证密码。
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### 7.3 初始化 Flask-Login
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```
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from flask_login import LoginManager
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login_manager = LoginManager(app)