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,render_template 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) #创建表格 # db.create_all() #添加 # user=User(username='mis1111123',password='886666') # db.session.add(user) # db.session.commit() # 修改 # user = User.query.filter(User.username=='mis666678').first # user.password='0.0.0.0' # db.session.commit() # 删除 user = User.query.filter(User.username=='mis66798').first() db.session.delete(user) db.session.commit() @app.route('/') def index(): return render_template("index.html") @app.route('/login') def login(): return render_template("login.html") @app.route('/regis') def register(): return render_template("zhuce.html") @app.route('/fankui') def fankui(): return render_template("fankui.html") if __name__ == '__main__': app.run(debug=True)