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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                我們通過 SqlAchemy 連接數據庫,安裝擴展 ``` (.venv) root@airvip:~/python_app/flask-demo# pip install flask-sqlalchemy (.venv) root@airvip:~/python_app/flask-demo# pip install pymysql ``` 我們把數據庫連接信息放在配置中,修改 `config.py` 文件中配置類 ``` class Config(object): ????SECRET_KEY?=?"AIRVip123456airvip" #?數據庫配置 ????SQLALCHEMY_DATABASE_URI?=?"mysql+pymysql://root:123456@127.0.0.1:3307/jdbc1" # 如果設置成 True (默認),Flask-SQLAlchemy 將會追蹤對象的修改并且發送信號,需要額外的內存。 # 如果不必要,可以禁用。 ????SQLALCHEMY_TRACK_MODIFICATIONS?=?True SQLALCHEMY_ECHO?=?True # 開發模式開啟可以查看 sql 語句 ``` 改造 `app` 目錄下的 ` __init__ ` 初始化文件 ``` #!/usr/bin/env?python3 #?-*-?encoding:?utf-8?-*- from?flask?import?Flask from?flask_sqlalchemy?import?SQLAlchemy from?config?import?config_map from?app.utils.commons?import?ReCoverter #?創建數據庫對象 db?=?SQLAlchemy() #?工廠模式 def create_app(config_name): ????app?=?Flask(__name__) #?設置?flask?的配置信息 ????config_class?=?config_map[config_name] ????app.config.from_object(config_class) # 使用?app?初始化?db db.init_app(app) # 為 flask 添加自定義的轉換器 app.url_map.converters["re"] = ReCoverter #?注冊藍圖 from?app?import?api_1_0 ????app.register_blueprint(api_1_0.bp,?url_prefix="/api/v1.0") # 如果只是接口,可以不注冊 admin 模塊 from?app?import?admin ????app.register_blueprint(admin.bp,?url_prefix="/admin") return?app ```
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