通过用户模型,对数据库进行增删改查操作。
增加:
user =
db.session.add(user)
db.session.commit()
查询:
User.query.filter(User.username == 'mis1114').first()
修改:
user.password = '111111'
db.session.commit()
删除:
db.session.delete(user)
db.session.commit()
from flask import Flask from flask_sqlalchemy import SQLAlchemy import config app = Flask(__name__) app.config.from_object(config) db = SQLAlchemy(app) 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(20), nullable=False) nickname = db.Column(db.String(20)) db.create_all() #增加 user=User(username='wgd13',password='Wgd13',nickname='wtaure') #查询 user=User.query.filter(User.username=='wgd13').first() print(user.id,user.password,user.nickname) #修改 user.password='123456' #删除 db.session.delete(user) #db.session.add(user) db.session.commit() @app.route('/') def hello_world(): return 'Hello World!' if __name__ == '__main__': app.run()
增加:
查询:
修改:
删除: