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()
SQLALCHEMY_DATABASE_URI='mysql+pymysql://root:@localhost:3306/mis15?charset=utf8'
SQLALCHEMY_TRACK_MODIFICATTONS = False
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()
#添加
user=User(username='hehe',password='1234567')
db.session.add(user)
db.session.commit()
#删除
user=User.query.filter(User.username=='haha').first()
user.password='2345'
db.session.delete(user)
db.session.commit()
#修改
user=User.query.filter(User.username=='hehe').first()
user.password='2345'
db.session.add(user)
db.session.commit()
#查找
user=User.query.filter(User.username=='hehe').first()
print(user.id,user.username,user.password)
@app.route('/')
def hello_world():
return 'Hello World!'
if __name__ == '__main__':
app.run()