feat:重新初始化

config/database.py

@@ -0,0 +1,23 @@
+from sqlalchemy import create_engine
+from sqlalchemy.ext.declarative import declarative_base
+from sqlalchemy.orm import sessionmaker
+
+from config.setting import settings
+
+DATABASE_URL = f"mysql+pymysql://{settings.DB_USER}:{settings.DB_PASSWORD}@{settings.DB_HOST}:{settings.DB_PORT}/{settings.DB_NAME}"
+
+engine = create_engine(url=DATABASE_URL)
+
+# 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()