javascript - 使用 php 中的 spout 库导出 excel 时文件扩展名或文件无效

Question

我在使用 spout 库导出 excel 时遇到问题。我不知道我的代码问题出在哪里。我对 spout 库了解不多。我已经尝试了很多次，但同样的错误一次又一次出现。请指导我问题出在哪里。

代码:

<?php 
include('php_script/db.php');
use Box\Spout\Common\Type;
use Box\Spout\Writer\Style\Border;
use Box\Spout\Writer\Style\BorderBuilder;
use Box\Spout\Writer\Style\Color;
use Box\Spout\Writer\Style\StyleBuilder;
use Box\Spout\Writer\WriterFactory;
include('php_script/spout/src/Spout/Autoloader/autoload.php');  
$sql = mysqli_query($con,"select * from person ");
$border = (new BorderBuilder())
        ->setBorderBottom(Color::GREEN, Border::WIDTH_THIN, Border::STYLE_DASHED)
        //->setFontColor(Color::BLUE)
        //->setBackgroundColor(Color::YELLOW)
        ->build();
    $style = (new StyleBuilder())
        ->setBorder($border)
        ->build();
    $filePath = "person".date("Y-m-d-H-i-s").'.xlsx';
    $writer = WriterFactory::create(Type::XLSX);
    $writer->openToFile($filePath);

    $array = ['TYPE'];
    
    $writer->addRowWithStyle($array, $style);

    
   
    while( $rows = mysqli_fetch_assoc($sql)) {
   
    $Type_subsidiary = $rows['Type_subsidiary'];
    $data =  [$Type_subsidiary];
    $writer->addRow($data);
    }

    $writer->close();
     if (file_exists($filePath)) {
            header('Content-Description: File Transfer');
            header('Content-Type: application/octet-stream');
            header('Content-Disposition: attachment; filename="'.basename($filePath).'"');
            header('Expires: 0');
            header('Cache-Control: must-revalidate');
            header('Pragma: public');
            header('Content-Length: ' . filesize($filePath));
            readfile($filePath);
            exit;
        }


?>

错误:

Excel cannot open the file 'person2018-09-19-07-20-30.xlsx' because the file format or file extension is not valid. Verify that the file has not been corrupted and that the file extension matches the format of the file

Answer 1

您是否尝试过让 spout 创建文件并将其直接“发送”到浏览器，而不指定其文档中指定的 header http://opensource.box.com/spout/getting-started/ ？

$writer->openToBrowser($fileName); // stream data directly to the browser

希望这会有所帮助，在我们的应用程序(基于 Symfony)中，我们使用 spout 但不需要指定 header 和文件路径。