34 lines
1.0 KiB
Python
34 lines
1.0 KiB
Python
from sqlalchemy.ext.asyncio import AsyncSession, create_async_engine, async_sessionmaker
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from sqlalchemy.orm import declarative_base
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from config.settings import get_settings
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# 从配置文件获取数据库URL
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settings = get_settings()
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DATABASE_URL = f'mysql+aiomysql://{settings.DB_USER}:{settings.DB_PASSWORD}@{settings.DB_HOST}:{settings.DB_PORT}/{settings.DB_NAME}?charset={settings.DB_CHARSET}'
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engine = create_async_engine(DATABASE_URL, echo=False, future=True)
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AsyncSessionLocal = async_sessionmaker(
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engine, class_=AsyncSession, expire_on_commit=False
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)
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Base = declarative_base()
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async def get_db():
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"""获取数据库会话"""
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async with AsyncSessionLocal() as session:
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try:
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yield session
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await session.commit()
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except Exception:
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await session.rollback()
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raise
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finally:
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await session.close()
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async def init_db():
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"""初始化数据库，创建所有表结构"""
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async with engine.begin() as conn:
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await conn.run_sync(Base.metadata.create_all)
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