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我有一個報告網站，我使用DataTables服務器端處理。除了我需要能夠導出整個數據集而不僅僅是在屏幕上顯示的部分之外，一切都很好。我有報告，有超過10,000行和65 +列，因此顯示頁面上的整個報告是不可能的（需要超過5分鐘，然後超時）。我想，我已經非常接近答案，但需要幫助完成剩餘的任務。這裏是我得到的：發送數據到URL通過帖子導出到Excel使用javascript
我正在收集需要發送給使用PHPExcel庫導出Excel文件的文件的數據。
當我導航到文件（ExportAllToExcel.php）它工作正常，但是當我使用按鈕將數據發送到文件沒有下載。以下是我現在正在進行的操作：
$.fn.dataTable.ext.buttons.export =
{
className: 'buttons-alert',
id: 'ExportButton',
text: "Export All Test III",
action: function (e, dt, node, config)
{
var SearchData = dt.rows({ filter: 'applied' }).data();
var OrderData = dt.order();
var NumRow = SearchData.length;
var SearchData2 = [];
for (j = 0; j < NumRow; j++)
{
var NewSearchData = SearchData[j];
for (i = 0; i < NewSearchData.length; i++)
{
NewSearchData[i] = NewSearchData[i].replace("<div class='Scrollable'>", "");
NewSearchData[i] = NewSearchData[i].replace("</div>", "");
}
SearchData2.push([NewSearchData]);
}
for (i = 0; i < SearchData2.length; i++)
{
for (j = 0; j < SearchData2[i].length; j++)
{
SearchData2[i][j] = SearchData2[i][j].join('::');
}
}
SearchData2 = SearchData2.join("%%");
//var SendPageData = new XMLHttpRequest();
//SendPageData.open("POST", "./ExportAllToExcel.php", true);
//SendPageData.send('{NumRow=' + NumRow + '},{SearchData=' + SearchData2 + '}');
$.post('./ExportAllToExcel.php',{SearchData: SearchData2,NumRow: NumRow});
window.location.href = './ExportAllToExcel.php';
}
};
這不起作用。 $.POST發送數據並獲得響應，但不導出文件。
Window.location轉到該文件並導出到Excel，但沒有來自$_POST的數據，因此該文件只有標題。
而SendPageData的做法與$.POST發送數據並獲得響應相同，但不創建文件。
而這裏的ExportAllToExcel.php：
<?php
require $_SERVER['DOCUMENT_ROOT'].'/dev/Location/Helper/PageName.php'; //Pulls the Page name and Table name and returns the $SQLTableName, $TableName, $Title, $Page and $HeadingDesc
include $_SERVER['DOCUMENT_ROOT'].'/dev/Location/DBConn.php'; //DB connection info
$headings = array(); //Create the empty array for use later and so that it won't throw an error if not assinged later
$hsql = "select Headings from TableHeadings where TableName = '$TableName' order by Id"; //Get all the column headers from the TableHeadings table in SQL
$getHeadings = $conn->query($hsql);
$rHeadings = $getHeadings->fetchALL(PDO::FETCH_ASSOC);
$CountHeadings = count($rHeadings); //Count how many columns that there will be
$tsqlHeadings = '';
$ColumnHeader = array();
for ($row = 0; $row < $CountHeadings; $row++)
{
$headings[$row] = $rHeadings[$row]["Headings"]; //fill the array of column headings for use in creating the DataTable
}
print_r($headings);
// Error reporting
error_reporting(E_ALL);
ini_set('display_errors', TRUE);
ini_set('display_startup_errors', TRUE);
if (PHP_SAPI == 'cli')
die('This example should only be run from a Web Browser');
// Add some data
$ColumnArray = array('A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z','AA','AB','AC','AD','AE','AF','AG','AH','AI','AJ','AK','AL','AM','AN','AO','AP','AQ','AR','AS','AT','AU','AV','AW','AX','AY','AZ');
//$HeadingArray = array('Year','Quater','Country','Sales');
$HeadingArray = $headings;
$primaryKey = 'id';
$table = $SQLTableName;
$request = $_POST;
$dataArray = array();
$dataArraystr = explode('%%',$_POST['SearchData']);
foreach($dataArraystr as $ArrayStr)
{
$dataArray[] = explode('::',$ArrayStr);
}
// Include PHPExcel
require_once dirname(__FILE__) . './Classes/PHPExcel.php';
// Create new PHPExcel object
$objPHPExcel = new PHPExcel();
// Set document properties
$objPHPExcel->getProperties()->setCreator("Michael McNair")
->setLastModifiedBy("Michael McNair")
->setTitle($TableName)
->setSubject($TableName)
->setDescription("Report for " .$TableName. " using PHPExcel, generated using PHP classes.")
->setKeywords("office PHPExcel php " . $TableName)
->setCategory("Report Export File");
$objPHPExcel->getActiveSheet()->fromArray($HeadingArray, NULL, 'A1');
$objPHPExcel->getActiveSheet()->fromArray($dataArray, NULL, 'A2');
$CountOfArray = count($HeadingArray);
// Set title row bold
$objPHPExcel->getActiveSheet()->getStyle('A1:' .$ColumnArray[$CountOfArray-1]. '1')->getFont()->setBold(true);
// Set autofilter
// Always include the complete filter range!
// Excel does support setting only the caption
// row, but that's not a best practise...
$objPHPExcel->getActiveSheet()->setAutoFilter($objPHPExcel->getActiveSheet()->calculateWorksheetDimension());
// Rename worksheet
$objPHPExcel->getActiveSheet()->setTitle('SimpleTest');
// Add a second sheet, but infront of the existing sheet
//$myWorkSheet = new PHPExcel_Worksheet($objPHPExcel,'New Worksheet');
//$objPHPExcel->addSheet($myWorkSheet,0);
// 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="ExportAllToExcelTest.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');
///$objWriter = new PHPExcel_Writer_Excel2007($objPHPExcel);
ob_clean();
$objWriter->save('php://output');
?>