}
      };

  /** Constructor for use by subclasses. */
  protected AbstractExecutionThreadService() {}

  /**
   * Start the service. This method is invoked on the execution thread.
   *
   * <p>By default this method does nothing.
   */
  protected void startUp() throws Exception {}

  /**
   * Run the service. This method is invoked on the execution thread. Implementations must respond

        }
      };

  /** Constructor for use by subclasses. */
  protected AbstractExecutionThreadService() {}

  /**
   * Start the service. This method is invoked on the execution thread.
   *
   * <p>By default this method does nothing.
   */
  protected void startUp() throws Exception {}

  /**
   * Run the service. This method is invoked on the execution thread. Implementations must respond

# Testando eventos: lifespan e inicialização - encerramento { #testing-events-lifespan-and-startup-shutdown }

Quando você precisa que o `lifespan` seja executado em seus testes, você pode utilizar o `TestClient` com a instrução `with`:

{* ../../docs_src/app_testing/tutorial004_py39.py hl[9:15,18,27:28,30:32,41:43] *}

이 부분은 건너뛰셔도 좋습니다.

///

*시작*과 *종료* 동안 실행될 이 로직을 정의하는 대체 방법이 있습니다.

애플리케이션이 시작되기 전에 또는 종료될 때 실행해야 하는 이벤트 핸들러(함수)를 정의할 수 있습니다.

이 함수들은 `async def` 또는 일반 `def`로 선언할 수 있습니다.

### `startup` 이벤트

애플리케이션이 시작되기 전에 실행되어야 하는 함수를 추가하려면, `"startup"` 이벤트로 선언합니다:

 * Base class for services that can implement {@link #startUp} and {@link #shutDown} but while in
 * the "running" state need to perform a periodic task. Subclasses can implement {@link #startUp},
 * {@link #shutDown} and also a {@link #runOneIteration} method that will be executed periodically.
 *
 * <p>This class uses the {@link ScheduledExecutorService} returned from {@link #executor} to run

     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Started server process <b>[</b><font color="#34E2E2"><b>383153</b></font><b>]</b>
     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Waiting for application startup.

    def main() -> dict[str, str]:
        return {"message": "Hello World"}

    @app.on_event("startup")
    def app_startup() -> None:
        state.app_startup = True

    @app.on_event("shutdown")
    def app_shutdown() -> None:
        state.app_shutdown = True

    router = APIRouter()

    @router.on_event("startup")
    def router_startup() -> None:
        state.router_startup = True

     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Started server process <b>[</b><font color="#34E2E2"><b>383153</b></font><b>]</b>
     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Waiting for application startup.

配置**启动**和**关闭**事件的推荐方法是使用 `FastAPI()` 应用的 `lifespan` 参数，如前所示。如果你提供了一个 `lifespan` 参数，启动（`startup`）和关闭（`shutdown`）事件处理器将不再生效。要么使用 `lifespan`，要么配置所有事件，两者不能共用。

你可以跳过这一部分。

///

有一种替代方法可以定义在**启动**和**关闭**期间执行的逻辑。

**FastAPI** 支持定义在应用启动前，或应用关闭时执行的事件处理器（函数）。

事件函数既可以声明为异步函数（`async def`），也可以声明为普通函数（`def`）。

### `startup` 事件

使用 `startup` 事件声明 `app` 启动前运行的函数：

{* ../../docs_src/events/tutorial001.py hl[8] *}

     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Started server process <b>[</b><font color="#34E2E2"><b>2306215</b></font><b>]</b>
     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Waiting for application startup.
     <span style="background-color:#007166"><font color="#D3D7CF"> INFO </font></span>  Application startup complete.