如何实现Yii2框架中使用PHPExcel导出Excel文件

composer require "phpoffice/phpexcel": "*"

require dirname(dirname(__FILE__)).'/excel/PHPExcel.php';

public static function Register() {

  $functions = spl_autoload_functions();

  foreach ( $functions as $function)

    spl_autoload_unregister($function);

    $functions = array_merge(array(array('PHPExcel_Autoloader','Load')),$functions);

  foreach ( $functions as $function)

    $x = spl_autoload_register($function);

    return $x;

}

public function actionExport()

{

    $objectPHPExcel = new PHPExcel();

    $objectPHPExcel->setActiveSheetIndex(0);

    $page_size = 52;

    $model = new NewsSearch();

    $dataProvider = $model->search();

    $dataProvider->setPagination(false);

    $data = $dataProvider->getData();

    $count = $dataProvider->getTotalItemCount();

    $page_count = (int)($count/$page_size) +1;

    $current_page = 0;

    $n = 0;

    foreach ( $data as $product )

    {

      if ( $n % $page_size === 0 )

      {

        $current_page = $current_page +1;

        //报表头的输出

        $objectPHPExcel->getActiveSheet()->mergeCells('B1:G1');

        $objectPHPExcel->getActiveSheet()->setCellValue('B1','产品信息表');

        $objectPHPExcel->setActiveSheetIndex(0)->setCellValue('B2','产品信息表');

        $objectPHPExcel->setActiveSheetIndex(0)->setCellValue('B2','产品信息表');

        $objectPHPExcel->setActiveSheetIndex(0)->getStyle('B1')->getFont()->setSize(24);

        $objectPHPExcel->setActiveSheetIndex(0)->getStyle('B1')

          ->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);

        $objectPHPExcel->setActiveSheetIndex(0)->setCellValue('B2','日期：'.date("Y年m月j日"));

        $objectPHPExcel->setActiveSheetIndex(0)->setCellValue('G2','第'.$current_page.'/'.$page_count.'页');

        $objectPHPExcel->setActiveSheetIndex(0)->getStyle('G2')

          ->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_RIGHT);

        //表格头的输出

        $objectPHPExcel->getActiveSheet()->getColumnDimension('A')->setWidth(5);

        $objectPHPExcel->setActiveSheetIndex(0)->setCellValue('B3','编号');

        $objectPHPExcel->getActiveSheet()->getColumnDimension('B')->setWidth(6.5);

        $objectPHPExcel->setActiveSheetIndex(0)->setCellValue('C3','名称');

        $objectPHPExcel->getActiveSheet()->getColumnDimension('C')->setWidth(17);

        $objectPHPExcel->setActiveSheetIndex(0)->setCellValue('D3','生产厂家');

        $objectPHPExcel->getActiveSheet()->getColumnDimension('D')->setWidth(22);

        $objectPHPExcel->setActiveSheetIndex(0)->setCellValue('E3','单位');

        $objectPHPExcel->getActiveSheet()->getColumnDimension('E')->setWidth(15);

        $objectPHPExcel->setActiveSheetIndex(0)->setCellValue('F3','单价');

        $objectPHPExcel->getActiveSheet()->getColumnDimension('F')->setWidth(15);

        $objectPHPExcel->setActiveSheetIndex(0)->setCellValue('G3','在库数');

        $objectPHPExcel->getActiveSheet()->getColumnDimension('G')->setWidth(15);

        //设置居中

        $objectPHPExcel->getActiveSheet()->getStyle('B3:G3')

          ->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);

        //设置边框

        $objectPHPExcel->getActiveSheet()->getStyle('B3:G3' )

          ->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN);

        $objectPHPExcel->getActiveSheet()->getStyle('B3:G3' )

          ->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN);

        $objectPHPExcel->getActiveSheet()->getStyle('B3:G3' )

          ->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN);

        $objectPHPExcel->getActiveSheet()->getStyle('B3:G3' )

          ->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN);

        $objectPHPExcel->getActiveSheet()->getStyle('B3:G3' )

          ->getBorders()->getVertical()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN);

        //设置颜色

        $objectPHPExcel->getActiveSheet()->getStyle('B3:G3')->getFill()

          ->setFillType(PHPExcel_Style_Fill::FILL_SOLID)->getStartColor()->setARGB('FF66CCCC');

      }

      //明细的输出

      $objectPHPExcel->getActiveSheet()->setCellValue('B'.($n+4) ,$product->id);

      $objectPHPExcel->getActiveSheet()->setCellValue('C'.($n+4) ,$product->product_name);

      $objectPHPExcel->getActiveSheet()->setCellValue('D'.($n+4) ,$product->product_agent->name);

      $objectPHPExcel->getActiveSheet()->setCellValue('E'.($n+4) ,$product->unit);

      $objectPHPExcel->getActiveSheet()->setCellValue('F'.($n+4) ,$product->unit_price);

      $objectPHPExcel->getActiveSheet()->setCellValue('G'.($n+4) ,$product->library_count);

      //设置边框

      $currentRowNum = $n+4;

      $objectPHPExcel->getActiveSheet()->getStyle('B'.($n+4).':G'.$currentRowNum )

          ->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN);

      $objectPHPExcel->getActiveSheet()->getStyle('B'.($n+4).':G'.$currentRowNum )

          ->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN);

      $objectPHPExcel->getActiveSheet()->getStyle('B'.($n+4).':G'.$currentRowNum )

          ->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN);

      $objectPHPExcel->getActiveSheet()->getStyle('B'.($n+4).':G'.$currentRowNum )

          ->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN);

      $objectPHPExcel->getActiveSheet()->getStyle('B'.($n+4).':G'.$currentRowNum )

          ->getBorders()->getVertical()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN);

      $n = $n +1; 

    }

    //设置分页显示

    //$objectPHPExcel->getActiveSheet()->setBreak( 'I55' , PHPExcel_Worksheet::BREAK_ROW );

    //$objectPHPExcel->getActiveSheet()->setBreak( 'I10' , PHPExcel_Worksheet::BREAK_COLUMN );

    $objectPHPExcel->getActiveSheet()->getPageSetup()->setHorizontalCentered(true);

    $objectPHPExcel->getActiveSheet()->getPageSetup()->setVerticalCentered(false);

    ob_end_clean();

    ob_start();

    header('Content-Type : application/vnd.ms-excel');

    header('Content-Disposition:attachment;filename="'.'产品信息表-'.date("Y年m月j日").'.xls"');

    $objWriter= PHPExcel_IOFactory::createWriter($objectPHPExcel,'Excel5');

    $objWriter->save('php://output');