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()
# user = User(username='micssa',password='213232')
# db.session.add(user)
# db.session.commit()
#
# user = User(username='mic45878',password='2222222')
# db.session.add(user)
# db.session.commit() #增加
# user=User.query.filter(User.username=='micssa').first()
# print(user.id,user.username,user.password) #查找
user=User.query.filter(User.username=='micssa').first()
user.password = '111111'
db.session.commit() #修改
# user=User.query.filter(User.username=='micssa').first()
# db.session.delete(user)
# db.session.commit() #删除
@app.route('/')
def hello_world():
return 'Hello World!'
if __name__ == '__main__':
app.run()
SQLALCHEMY_DATABASE_URI = 'mysql+pymysql://root:@127.0.0.1:3306/mis_db?charset=utf8' SQLALCHEMY_TRACK_MODIFICATIONS = False