35 lines
772 B
Python
35 lines
772 B
Python
import os
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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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# 支持 MySQL, PostgreSQL
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DATABASE_URL = os.getenv(
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DATABASE_URL,
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postgresql://postgres:postgres@localhost:5432/zodiac
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)
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# 数据库引擎配置
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engine = create_engine(
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DATABASE_URL,
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pool_pre_ping=True,
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pool_size=10,
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max_overflow=20,
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pool_recycle=3600, # 1小时回收连接
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pool_timeout=30, # 获取连接超时30秒
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echo=False
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)
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SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
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Base = declarative_base()
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def get_db():
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"""获取数据库会话"""
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db = SessionLocal(expire_on_commit=False)
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try:
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yield db
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finally:
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db.close()
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