1.将PHPExcel插件放在项目中，本人位置是ThinkPHP文件夹下，目录结构如下/ThinkPHP/Library//Vendor/…
2.直接根据模型，配置三个变量即可使用。
/**
* Excel导出
* @param $fileName（文件名）
* @param $headArr （表头）
* @param $data （每一行的数据）
* @throws \PHPExcel_Exception
* @throws \PHPExcel_Reader_Exception
*/
function getExcel($fileName, $headArr, $data)
{
include_once(THINK_PATH . "Library/Vendor/phpexcel/PHPExcel.php");
include_once(THINK_PATH . "Library/Vendor/phpexcel/PHPExcel/Writer/Excel2007.php");
include_once(THINK_PATH . "Library/Vendor/phpexcel/PHPExcel/Writer/Excel5.php");
include_once(THINK_PATH . "Library/Vendor/phpexcel/PHPExcel/IOFactory.php");
if (empty($data) || !is_array($data)) {
die("data must be a array");
}
if (empty($fileName)) {
exit;
}
$date = date("Y_m_d", time());
$fileName .= "_{$date}.xlsx";

//创建新的PHPExcel对象  
$objPHPExcel = new \\PHPExcel();  
$objProps = $objPHPExcel->getProperties();  

//设置表头  
$key = ord("A");  
$key2 = ord("A");  
$colum2 = '';  
$objActSheet = $objPHPExcel->getActiveSheet();  
$objPHPExcel->getActiveSheet()->getColumnDimension('A')->setWidth(15);  
foreach ($headArr as $v) {  
    $colum = chr($key);  
    $objPHPExcel->setActiveSheetIndex(0)->setCellValue($colum2 . $colum . '1', $v);  
    if ($key < 90) {  
        $key += 1;  
    } else {  
        $key = ord("A");  
        $colum2 = chr($key2);  
        $key2++;  
    }  
}  
//exit;  
$column = 2;  

foreach ($data as $key => $rows) { //行写入  
    $span = ord("A");  
    $span2 = ord("A");  
    $j2 = '';  
    foreach ($rows as $keyName => $value) {// 列写入  
        $j = chr($span);  
        //$objActSheet->setCellValue($j.$column, $value);  
        //把每个单元格设置成分文本类型  
        //dump($j2.$j.$column);  
        $objActSheet->setCellValueExplicit($j2 . $j . $column, $value, \\PHPExcel\_Cell\_DataType::TYPE\_STRING);  

        if ($span < 90) {  
            $span += 1;  
        } else {  
            $span = ord("A");  
            $j2 = chr($span2);  
            $span2++;  
        }  
    }  
    $column++;  
}  
// exit;  
$fileName = iconv("utf-8", "gb2312", $fileName);  
//重命名表  
$objPHPExcel->getActiveSheet()->setTitle('Simple');  
//设置活动单指数到第一个表,所以Excel打开这是第一个表  
$objPHPExcel->setActiveSheetIndex(0);  
//将输出重定向到一个客户端web浏览器(Excel2007)  
header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');  
header("Content-Disposition: attachment; filename=\\"$fileName\\"");  
header('Cache-Control: max-age=0');  
$objWriter = \\PHPExcel\_IOFactory::createWriter($objPHPExcel, 'Excel2007');  
if (!empty($\_GET\['excel'\])) {  
    $objWriter->save('php://output'); //文件通过浏览器下载  
} else {  
    $objWriter->save($fileName); //脚本方式运行，保存在当前目录  
}  
$objWriter->save('php://output');  
exit;  

}