python3 + falsk + sqlalchemy 連結mysql 資料庫
1、pycharm中新建一個flask專案
2、按裝flask、PyMySQL、SQLAlchemy
3、專案下面新建一個config.py 檔案
DEBUG = True #dialect+driver://root:[email protected]:3306/ DIALECT = 'mysql' DRIVER='pymysql' USERNAME = 'root' PASSWORD = '1q2w3e4r5t' HOST = '127.0.0.1' PORT = 3306 DATABASE = 'db_demo1' SQLALCHEMY_DATABASE_URI= "{}+{}://{}:{}@{}:{}/{}?charset=utf8".format(DIALECT,DRIVER,USERNAME,PASSWORD,HOST,PORT,DATABASE) SQLALCHEMY_TRACK_MODIFICATIONS = False print(SQLALCHEMY_DATABASE_URI)
4、app.py 檔案
from flask import Flask import config from flask_sqlalchemy import SQLAlchemy app = Flask(__name__) app.config.from_object(config) db= SQLAlchemy(app) db.create_all() @app.route('/') def index(): return 'index' if __name__ == '__main__': app.run()
執行app.py 檔案，結果如下，表面執行成功
FLASK_APP = test_sqlalchemy.py
FLASK_ENV = development
FLASK_DEBUG = 1
In folder /Users/autotest/PycharmProjects/python3_flask
/Users/autotest/PycharmProjects/python3_flask/venv/bin/python /Applications/PyCharm.app/Contents/helpers/pydev/pydevd.py --module --multiproc --qt-support=auto --client 127.0.0.1 --port 55365 --file flask run
pydev debugger: process 3089 is connecting
Connected to pydev debugger (build 182.4505.26)
* Serving Flask app "test_sqlalchemy.py" (lazy loading)
* Environment: development
* Debug mode: on
mysql+pymysql://root:[email protected]:3306/db_demo1?charset=utf8
* Running on http://127.0.0.1:5000/ (Press CTRL+C to quit)
* Restarting with stat
pydev debugger: process 3090 is connecting
mysql+pymysql://root:[email protected]:3306/db_demo1?charset=utf8
* Debugger is active!
* Debugger PIN: 216-502-598