这解决了问题。
class PushUidProcessor
{
/**
* Pushed uid processor for adding a unique identifier into records.
*
* @param \Illuminate\Log\Logger $logger
*
* @return void
*/
public function __invoke(Logger $logger)
{
collect($logger->getHandlers())->each(function ($handler) {
$handler->pushProcessor(new UidProcessor);
});
}
}