我想在我自己的实现中记录http请求/响应数据 HandlerInterceptor 并用 @Async 带注解的方法（避免阻塞主线程）。
拦截器被正确调用，但当发生异常时，在拦截器get correctly 500内部服务器错误 HttpServletResponse ，但在 @Async 方法get http status 200 ok。

public class LoggingInterceptor implements AsyncHandlerInterceptor {

  private static Logger LOGGER = LogManager.getLogger(LoggingInterceptor.class);

  private final AsyncLogRequestInfoSaver saver;

  public LoggingInterceptor(final AsyncLogRequestInfoSaver saver) {
    this.saver = saver;
  }

  @Override
  public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {

    LOGGER.debug("HTTP status code: {}", response.getStatus()); // Here I got HTTP 500
    this.saver.save(request, response);

  }
}

异步方法：

@Service
public class AsyncLogRequestInfoSaver {

      @Async
    public void save(final HttpServletRequest request, HttpServletResponse response) throws JsonProcessingException {

        LOGGER.debug("HTTP status code: {}", response.getStatus()); // Here I got HTTP 200

    }

}

我做错什么了？