public function export() {
        if ($this->request->isPost()) {



            $filter             = $this->request->request("filter", '');
            $filter_arr         = (array)json_decode($filter, true);

            $ids                = $this->request->request('ids','');

            $scene_id                   = CService::MANAGE_ALL_CUSTOMER;
            if (!empty($filter_arr) && isset($filter_arr['scene_id']))  {
                $scene_id       = intval($filter_arr['scene_id']);
            }

            $scene_where        = $this->getFilterAllSceneWhere($scene_id);

            list($where, $sort, $order, $offset, $limit) = $this->buildAllParams();

            if (!empty($ids) && $ids != '' && $ids != 'all') {
                $ids_arr        = explode(',',$ids);
                $where['id']    = ['in', $ids_arr];
            }

            $where              = array_merge($scene_where,$where);


            $count              = CModel::model()->where($where)->count();


            if ($count > 0) {

                if ($count > 50000) {

                    set_time_limit(0);
                    ini_set('memory_limit', '128M');

                    $xlsTitle = [   '字段1', '字段2', '字段3'
                                ];

                    // buffer计数器
                    $cnt = 0;



                    $fileName           = '客户导出'.date('YmdHis').rand(10000000,88888888);//文件名称
                    $pro_path           = ExportService::EXPORT_CUSTOMER_FILE_PATH; // 项目目录
                    $fileName           = $pro_path . $fileName;

                    $zip_file_name      = $fileName.'.zip';

                    // 输出Excel文件头，可把user.csv换成你要的文件名
                    header('Content-Type: application/vnd.ms-excel;charset=utf-8');
                    header('Content-Disposition: attachment;filename="' . $zip_file_name . '"');
                    header('Cache-Control: max-age=0');

                    $fileNameArr = [];

                    $every_step_limit       = 10000;
                    $loop_number_count      = intval(ceil($count / $every_step_limit));


                    for ($i = 0; $i < $loop_number_count; $i ++) {


                        $fp = fopen($fileName . '_' . ($i+1) . '.csv', 'w'); //生成临时文件
                        fwrite($fp, chr(0xEF).chr(0xBB).chr(0xBF));/*防止乱码  */

                        // chmod('attack_ip_info_' . $i . '.csv',777);//修改可执行权限
                        $fileNameArr[] = $fileName . '_' . ($i+1) . '.csv'; // 将数据通过fputcsv写到文件句柄
                        fputcsv($fp, $xlsTitle);
                        /******************** 调整位置开始 ***************************/

                        $limit          = $i * $every_step_limit;
                        $limit_list     = ExportService::service()->getExportList($where, $limit, $every_step_limit);
                        $list           = ExportService::service()->formatExportData($limit_list, $this->auth_global_search_organise_id);
                        if (!empty($list)) {
                            foreach ($list as $item) {
                                $cnt++;
                                if ($limit == $cnt) {
                                    // 刷新一下输出buffer，防止由于数据过多造成问题
                                    ob_flush();
                                    flush();
                                    $cnt = 0;
                                }
                                fputcsv($fp, $item);
                            }
                            unset($list);
                        }
                        fclose($fp); // 每生成一个文件关闭
                    }



                    try {
                        // 进行多个文件压缩
                        $zip = new \ZipArchive();

                        $zip->open($zip_file_name, $zip::CREATE); // 打开压缩包
                        foreach ($fileNameArr as $file) {
                            $zip->addFile($file, basename($file)); // 向压缩包中添加文件
                        }
                        $zip->close();  // 关闭压缩包
                        foreach ($fileNameArr as $file) {
                            unlink($file); // 删除csv临时文件
                        }

                        if (file_exists($zip_file_name)) {
                           
                            $this->success('操作成功');
                        } else {
                            $this->error('操作失败');
                        }
                    } catch (ValidateException|PDOException|Exception $e) {
                        $this->error('操作失败');
                    }
                } else {
                    set_time_limit(0);

                    $spreadsheet    = new Spreadsheet();
                    $sheet          = $spreadsheet->getActiveSheet();

                    $sheet->getStyle('A:S')->getAlignment()
                        ->setVertical(\PhpOffice\PhpSpreadsheet\Style\Alignment::VERTICAL_CENTER) //设置垂直居中
                        ->setHorizontal(\PhpOffice\PhpSpreadsheet\Style\Alignment::HORIZONTAL_CENTER) //设置水平居中
                        ->setWrapText(true); //设置自动换行

                    $titleStyleArray     = [
                        'font'      => [
                            'name'  => 'SimHei', // 中文字体，"黑体"的类似字体
                            'bold'  => true,
                            'size'  => 12,
                        ]
                    ];
                    $sheet->getStyle('A1:Z1')->applyFromArray($titleStyleArray);

                    $lineStyleArray     = [
                        'font'      => [
                            'name'  => 'SimHei', // 中文字体，"黑体"的类似字体
                        ]
                    ];

                    //设置表头
                    $sheet->setCellValue('A1', '字段1');
                    $sheet->setCellValue('B1', '字段2');
                    $sheet->setCellValue('C1', '字段3');
　　　　　　　　　　　　.......



                    $sheet->getColumnDimension('A')->setWidth(15);
                    $sheet->getColumnDimension('B')->setWidth(15);
                    $sheet->getColumnDimension('C')->setWidth(15);
　　　　　　　　　　　　.......//$sheet->getDefaultRowDimension()->setRowHeight(60);       //设置行高


                    $res_list       = ExportService::service()->getExportCustomerList($where);
                    $list           = ExportService::service()->formatExportCustomerData($res_list, $this->auth_global_search_organise_id);

                    if (!empty($list)) {
                        //输出表格
                        foreach($list as $keys => $value) {
                            $keys = $keys + 2;
                            $sheet->setCellValue('A'.$keys,$value['field1'] ?? '')->getStyle('A')->applyFromArray($lineStyleArray);
                            $sheet->setCellValue('B'.$keys,$value['field2'] ?? '')->getStyle('B')->applyFromArray($lineStyleArray);
                            $sheet->setCellValue('C'.$keys,$value['field3'] ?? '')->getStyle('C')->applyFromArray($lineStyleArray);
　　　　　　　　　　　　　　　　 .........


                        }


                    }

                    // 保存Excel文件到服务器的指定路径
                    $pro_path       = ExportService::EXPORT_CUSTOMER_FILE_PATH; // 项目目录
                    $file_name      = '导出'.date('YmdHis').rand(10000000,88888888).'.xlsx';
                    $file_path      = $pro_path . $file_name;

//                    if (!file_exists($file_path)) {
//                        fopen($file_path, 'w');
//                    }

                    try {
                        $writer = \PhpOffice\PhpSpreadsheet\IOFactory::createWriter($spreadsheet, 'Xlsx');
                        $writer->save($file_path);

                        if (file_exists($file_path)) {
                   
                            $this->success('操作成功');
                        } else {
                            $this->error('操作失败');
                        }
                    } catch (ValidateException|PDOException|Exception $e) {
                        $this->error('操作失败');
                    }
                }

            }

        }

    }