項目目錄結構如下：
Flask-SQLAlchemy
sansa
views
account.py
__init__.py
models.py
代碼如下：
settings.py
class BaseConfig(object):
SQLALCHEMY_DATABASE_URI = "mssql+pyodbc://sa:Nuctech_50@dsn_name"
SQLALCHEMY_POOL_SIZE = 5
SQLALCHEMY_POOL_TIMEOUT = 30
SQLALCHEMY_POOL_RECYCLE = -1
#追蹤對象的修改並且發送信號
SQLALCHEMY_TRACK_MODIFICATIONS = False
class ProductionConfig(BaseConfig):
pass
class DevelopmentConfig(BaseConfig):
pass
class TestingConfig(BaseConfig):
pass
run.py
from sansa import create_app
app = create_app()
if __name__ == '__main__':
app.run()
create_table.py
from sansa import create_app
from sansa import db
app = create_app()
with app.app_context():
db.create_all()
sansa/__init__.py
from flask import Flask
from flask_sqlalchemy import SQLAlchemy
db = SQLAlchemy()
from .models import *#需要導入，且放在db下面，因爲models文件中需要引入db,from . import db
from .views import account
def create_app():
app = Flask(__name__)
app.config.from_object('settings.DevelopmentConfig')
#將db註冊到app中
db.init_app(app)
#註冊藍圖
app.register_blueprint(account.account)
return app
sansa/models.py
from . import db
class Users(db.Model):
__tablename__ = 'users'
id = db.Column(db.Integer,primary_key=True)
username = db.Column(db.String(80),unique=True,nullable=False)
email = db.Column(db.String(120),unique=True,nullable=False)
def __repr__(self):
return '<User %r>'%self.username
sansa/views/account.py
from flask import Blueprint
from .. import db
from .. import models
account = Blueprint('account',__name__)
@account.route("/login")
def login():
# db.session.add(models.Users(username='alex',email="[email protected]"))
# db.session.commit()
# db.session.close()
user_list = db.session.query(models.Users).all()
db.session.close()
for item in user_list:
print(item.username,item.email)
return "login"