webman里面直接输出phpspeadsheet导出的文件到php://output

$writer = new Xlsx($spreadsheet);
$response = response();
ob_start();
$writer->save('php://output');
$c = ob_get_contents();
ob_end_clean();
$response->withHeaders([
    'Content-Type' => 'application/vnd.ms-excel',
    'Content-Disposition' => 'attachment;filename="xxx.xlsx"',
    'Cache-Control' => 'max-age=0',
])->withBody($c);
return $response;