通过用户模型,对数据库进行增删改查操作
增加:
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() ''' user=User.query.filter(User.username=='mis1',password='mis1') db.session.add(user) db.session.commit() ''' user=User.query.filter(User.username=='mis1').first() user.password='123456' user.username='mis1' print(user.username,user.password) db.session.commit() @app.route('/') def hello_world(): return 'Hello World!' if __name__=='__main__': app.run()