feat: 初始化工程

config/database.py

@@ -0,0 +1,26 @@
+import os
+
+from dotenv import load_dotenv
+from sqlalchemy import create_engine
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import sessionmaker
+
+load_dotenv()
+
+DATABASE_URL = f"mysql+pymysql://root:{os.getenv('DB_PASSWORD')}@{os.getenv('DB_HOST')}:3306/patch"
+
+engine = create_engine(url=DATABASE_URL, pool_pre_ping=True, pool_recycle=3600)
+
+# 会话工厂
+SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
+# ORM基类
+Base = declarative_base()
+
+
+def get_db():
+    # 创建数据库会话实例
+    db = SessionLocal()
+    try:
+        yield db
+    finally:
+        db.close()