Typo3 11.5 > 获取控制器方法来创建 XLSX，然后发送标头以下载文件

Question

我无法让该控制器创建 XLS 并下载它。下面的代码确实创建了 Excel。 Excel 也保存在服务器上，我可以看到该文件具有正确的结构和内容。但是，下载的文件包含当前页面（HTML）代码，而不是我从存储库中提取的内容。

public function exportAction()
{

    // Create a new PHPExcel spreadsheet
    $spreadsheet = new Spreadsheet();

    // Create a worksheet
    $worksheet = $spreadsheet->getActiveSheet();

    // The Excel data logic goes here
    // (..)

    $tempFilePath = GeneralUtility::tempnam('export_', '.xlsx');
    $writer = new Xlsx($spreadsheet);
    $writer->save($tempFilePath);

    $uploadFolder = "fileadmin/;
    $uploadFolderAbsolutePath = GeneralUtility::getFileAbsFileName($uploadFolder);

    $filename = "Upload.xls";
    $destinationPath = $uploadFolderAbsolutePath . "/" . $filename;

    GeneralUtility::upload_copy_move($tempFilePath, $destinationPath);

    unlink($tempFilePath);

    // The file upload.XLS is correct
    // The below does not work as expected.

    if (file_exists($destinationPath)) {
        $response = $this->responseFactory->createResponse();

        $response = $response->withHeader("Content-Type", "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
        $response = $response->withHeader("Content-Disposition", "attachment; filename=" . basename($filename));

        $response = $response->withHeader("Content-Transfer-Encoding", "binary");

        $stream = new Stream($destinationPath, 'r');
        $response = $response->withBody($stream);

        return $response;

    }

    return $this->htmlResponse();

}

Answer 1

如果放置退出的“解决方法”有帮助，原因可能是在您的插件之后执行其他操作并覆盖内容。

然后，您可以调整以下插件，保留您的解决方法，或者通过抛出立即页面解析异常来“正确”解决您的最终操作：https://api.typo3.org/9.5/class_t_y_p_o3_1_1_c_m_s_1_1_core_1_1_http_1_1_immediate_response_exception.html

当这是“正确”的操作时抛出异常听起来很奇怪，但它是“好的”😅