28 lines
773 B
Python
28 lines
773 B
Python
from sqlalchemy import create_engine
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from sqlalchemy.ext.declarative import declarative_base
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from sqlalchemy.orm import sessionmaker
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from app.utils.config import get_settings
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settings = get_settings()
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# 创建数据库引擎
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engine = create_engine(
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settings.database_url,
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pool_pre_ping=True, # 自动检测断开的连接并重新连接
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pool_recycle=3600, # 每小时回收连接
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echo=settings.debug, # 在调试模式下打印SQL语句
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)
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# 创建会话工厂
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SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
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# 创建Base类，所有模型都将继承这个类
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Base = declarative_base()
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# 获取数据库会话的依赖函数
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def get_db():
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db = SessionLocal()
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try:
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yield db
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finally:
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db.close() |