生成和下载excel文件会生成ERR_INVALID_RESPONSE

Question

这是我的代码:

 public function downloadexcel($requestId) {
    $this->loadModel('MaterialsRequest');
    $materialsRequests = $this->MaterialsRequest->find('all', array('conditions' => array('MaterialsRequest.request_id' => $requestId)));
    date_default_timezone_set('Europe/London');

    if (PHP_SAPI == 'cli')
        die('This example should only be run from a Web Browser');

    /** Include PHPExcel */
    //require_once dirname(__FILE__) . '/../Classes/PHPExcel.php';
    // Create new PHPExcel object
    $objPHPExcel = new PHPExcel();

    // Set document properties
    $objPHPExcel->getProperties()->setCreator("mez")
            ->setLastModifiedBy("mez")
            ->setTitle("Supply Template")
            ->setSubject("Supply Template")
            ->setDescription("Supply Template , please fill and upload.")
            ->setKeywords("office 2007 openxml php")
            ->setCategory("Supply");




    $objPHPExcel->getActiveSheet()->getColumnDimension('A')->setWidth(10);
    $objPHPExcel->getActiveSheet()->getColumnDimension('B')->setWidth(40);
    $objPHPExcel->getActiveSheet()->getColumnDimension('C')->setWidth(30);
    $objPHPExcel->getActiveSheet()->getColumnDimension('D')->setWidth(30);
    $objPHPExcel->getActiveSheet()->getStyle('A')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_LEFT);
    $objPHPExcel->getActiveSheet()->getStyle('B')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::VERTICAL_CENTER);
    $objPHPExcel->getActiveSheet()->getStyle('C')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::VERTICAL_CENTER);
    $objPHPExcel->getActiveSheet()->getStyle('D')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::VERTICAL_CENTER);

    // Add some data
    $objPHPExcel->setActiveSheetIndex(0)
            ->setCellValue('A1', 'Material ID')
            ->setCellValue('B1', 'Material Name')
            ->setCellValue('C1', 'Quantity')
            ->setCellValue('D1', 'Your offer');


    $index = 2;
    foreach ($materialsRequests as $oneMaterialsRequests) {

        $objPHPExcel->setActiveSheetIndex(0)
                ->setCellValue('A' . $index, $oneMaterialsRequests['MaterialsRequest']['material_id'])
                ->setCellValue('B' . $index, $oneMaterialsRequests['Material']['name'])
                ->setCellValue('C' . $index, $oneMaterialsRequests['MaterialsRequest']['qty'])
                ->setCellValue('E' . $index, $oneMaterialsRequests['MaterialsRequest']['id']);


        $index++;
    }

    /// Set sheet security
    $MaterialsRequestsNo = count($materialsRequests);
    $MaterialsRequestsNo+=1; //add count for header
    $objPHPExcel->getActiveSheet()->getProtection()->setSheet(true);
    $objPHPExcel->getActiveSheet()
            ->getStyle('D2:D' . $MaterialsRequestsNo)
            ->getProtection()->setLocked(
            PHPExcel_Style_Protection::PROTECTION_UNPROTECTED
    );


    // Miscellaneous glyphs, UTF-8
    // Rename worksheet
    $objPHPExcel->getActiveSheet()->setTitle('Supply');


    // Set active sheet index to the first sheet, so Excel opens this as the first sheet
    $objPHPExcel->setActiveSheetIndex(0);


    // Redirect output to a client’s web browser (Excel2007)
    header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
    header('Content-Disposition: attachment;filename="Supply.xlsx"');
    header('Cache-Control: max-age=0');
    // If you're serving to IE 9, then the following may be needed
    header('Cache-Control: max-age=1');

    // If you're serving to IE over SSL, then the following may be needed
    header('Expires: Mon, 26 Jul 1997 05:00:00 GMT'); // Date in the past
    header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT'); // always modified
    header('Cache-Control: cache, must-revalidate');// HTTP/1.1
    header('Pragma: public'); // HTTP/1.0

    $objWriter=PHPExcel_IOFactory::createWriter($objPHPExcel,'Excel2007');
    $objWriter->save('php://output');

    exit;
}

当我调用此函数时,从我在灯上操作的本地服务器上我可以得到excel表,并且在调用该函数后网页将关闭,当我调用它时,但是在我的apache服务器上它会显示错误:ERR_INVALID_RESPONSE,我去了通过代码放一个die(); 在每一行之后,看看它会如何响应,直到$objWriter=PHPExcel_IOFactory::createWriter($objPHPExcel,'Excel2007');它下载电子表格之后再放一个die()但它会被破坏并且不会关闭页面并且它不会显示该错误消息,但显然$objWriter->save('php://output');是造成的出现错误,页面将冻结,excel文件将无法下载.

我调试别人的代码,但我无法弄清楚这部分.

Answer 1

最终问题出在 ZipArchive 类中，这就是它在一台服务器上工作而在另一台服务器上不起作用的原因。

更多文档在这里：http : //www.php.net/manual/en/zip.installation.php

Answer 2

我有同样的问题.检查"php -m"它给你一个模块列表,并检查你是否安装了"zip"模块.http://php.net/manual/en/book.zip.php

PhpExcel需要此模块.如果您没有,请尝试安装或更改您的php版本.在我的情况下,我解决了将我的PHP从7更改为PHP 5.5