我在 TYPO3 后端创建了一个按钮<f:link.action class="btn btn-default" action="redirectDownload" additionalAttributes="{role: 'button'}"> <core:icon identifier="actions-system-extension-download"/> <f:translate key="redirect_download" /> </f:link.action>它调用我的控制器中的函数public function redirectDownloadAction(){ $this->redirectRepository->getRedirects();}并在我的存储库中public function getRedirects(){ $connectionPool = GeneralUtility::makeInstance(ConnectionPool::class); $queryBuilder = $connectionPool ->getQueryBuilderForTable('tx_redirects'); $csvData = $queryBuilder ->select("*") ->from('tx_redirects') ->execute() ->fetchAll(); return $csvData;}我得到正确的数据,并在执行信息后 The technical reason is: No template was found. View could not be resolved for action "redirectDownload" in class "\Controller\RedirectController".我的问题是如何通过单击按钮将 SQL 结果下载到 CSV 文件中?并且没有收到警告。
1 回答
慕慕森
TA贡献1856条经验 获得超17个赞
警告说您没有此操作的模板,这是正确的,因为您不想输出任何网站。
首先,您应该将查询结果放入一个数组中,然后将该数组放入内存 csv 并将其发送给用户,如下所示:
$fiveMBs = 5 * 1024 * 1024;
$outputBuffer = fopen('php://temp/maxmemory:' . $fiveMBs, 'w');
foreach ($rows as $row) {
fputcsv($outputBuffer, $row, ';', '"');
}
rewind($outputBuffer);
$content = utf8_decode(stream_get_contents($outputBuffer));
header('Content-Type: text/csv');
header('Content-Length: ' . strlen($content));
header('Content-Disposition: attachment;filename="' . $filename . '.csv"');
die($content);
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