openai--openai-agents-python/docs/zh/sessions/sqlalchemy_session.md

search

search
exclude true

SQLAlchemy 会话

SQLAlchemySession 使用 SQLAlchemy 提供生产就绪的会话实现，使你可以使用 SQLAlchemy 支持的任何数据库（PostgreSQL、MySQL、SQLite 等）进行会话存储。

安装

SQLAlchemy 会话需要 sqlalchemy 额外依赖：

pip install openai-agents[sqlalchemy]

快速开始

使用数据库 URL

最简单的入门方式：

import asyncio
from agents import Agent, Runner
from agents.extensions.memory import SQLAlchemySession

async def main():
    agent = Agent("Assistant")
    
    # Create session using database URL
    session = SQLAlchemySession.from_url(
        "user-123",
        url="sqlite+aiosqlite:///:memory:",
        create_tables=True
    )
    
    result = await Runner.run(agent, "Hello", session=session)
    print(result.final_output)

if __name__ == "__main__":
    asyncio.run(main())

使用现有引擎

适用于已有 SQLAlchemy 引擎的应用：

import asyncio
from agents import Agent, Runner
from agents.extensions.memory import SQLAlchemySession
from sqlalchemy.ext.asyncio import create_async_engine

async def main():
    # Create your database engine
    engine = create_async_engine("postgresql+asyncpg://user:pass@localhost/db")
    
    agent = Agent("Assistant")
    session = SQLAlchemySession(
        "user-456",
        engine=engine,
        create_tables=True
    )
    
    result = await Runner.run(agent, "Hello", session=session)
    print(result.final_output)
    
    # Clean up
    await engine.dispose()

if __name__ == "__main__":
    asyncio.run(main())

API 参考

• [SQLAlchemySession][agents.extensions.memory.sqlalchemy_session.SQLAlchemySession] - 主类
• [Session][agents.memory.session.Session] - 基础会话协议