dfxd/app/Exports/Exports.php

<?php

namespace App\Exports;


use Illuminate\Support\Collection;
use Illuminate\Support\Facades\Redis;
use Maatwebsite\Excel\Concerns\FromCollection;

use Maatwebsite\Excel\Concerns\WithCustomValueBinder;
use Maatwebsite\Excel\Concerns\WithEvents;     // 自动注册事件监听器
use Maatwebsite\Excel\Concerns\WithHeadings;
use Maatwebsite\Excel\Concerns\WithStrictNullComparison;    // 导出 0 原样显示，不为 null
use Maatwebsite\Excel\Events\AfterSheet;
use PhpOffice\PhpSpreadsheet\Cell\Cell;
use PhpOffice\PhpSpreadsheet\Cell\DataType;
use PhpOffice\PhpSpreadsheet\Cell\DefaultValueBinder;


class Exports extends DefaultValueBinder implements WithCustomValueBinder , FromCollection, WithEvents, WithStrictNullComparison,withHeadings
{

    /**
     * @return \Illuminate\Support\Collection
     */
    public function __construct($data,$type=1,$headers)
    {
        $this->data = $data;
        $this->type = $type;
        $this->headers = $headers;
    }

    public function registerEvents(): array
    {
        //区分不通状态的合同导出，格式不同
            $type = $this->type.'_set';
            return $this->$type();
    }

    //数组转集合
    public function collection()
    {
        return new Collection($this->createData());
    }
    //业务代码
    public function createData()
    {
        $name = $this->type;
        $data = $this->export();
        return $data;

    }

    public function bindValue(Cell $cell, $value)
    {
        if (is_numeric($value)) {
            $cell->setValueExplicit($value, DataType::TYPE_STRING2);

            return true;
        }

        // else return default behavior
        return parent::bindValue($cell, $value);
    }

    //use Maatwebsite\Excel\Concerns\WithColumnFormatting;
    //use PhpOffice\PhpSpreadsheet\Style\NumberFormat;
//    public function columnFormats(): array
//    {
//        return [
//            'F' => NumberFormat::FORMAT_NUMBER,
//        ];
//    }

    // 自定义表头，需实现withHeadings接口
    public function headings(): array
    {
        return $this->headers;
    }

    private function export(){
        $list = [];
        foreach ($this->data as $v){
            $list[] = $v;
        }
        return $list;
    }

    private function production_order_set(){
        return [
            AfterSheet::class => function (AfterSheet $event) {
                $count = count($this->data);

                //设置区域单元格水平居中
                $event->sheet->getDelegate()->getStyle('A1:'.'M'.($count+1))->getAlignment()->setHorizontal(\PhpOffice\PhpSpreadsheet\Style\Alignment::HORIZONTAL_CENTER);

                // 定义列宽度
                $widths = ['A' => 20, 'B' => 20, 'C' => 20, 'D' => 20, 'E' => 20, 'F' => 35, 'G' => 25, 'H' => 25, 'I' => 25, 'J' => 25];
                foreach ($widths as $k => $v) {
                    // 设置列宽度
                    $event->sheet->getDelegate()->getColumnDimension($k)->setWidth($v);
                }

                $row = 2;
                //设置字段
                foreach ($this->data as $item) {
                    $event->sheet->setCellValue('A'.$row, $item['production_time']);
                    $event->sheet->setCellValue('B'.$row, $item['production_no']);
                    $event->sheet->setCellValue('C'.$row, $item['out_order_no_time']);
                    $event->sheet->setCellValue('D'.$row, $item['out_order_no']);
                    $event->sheet->setCellValue('E'.$row, $item['customer_no']);
                    $event->sheet->setCellValue('F'.$row, $item['customer_name']);
                    $event->sheet->setCellValue('G'.$row, $item['table_header_mark']);
                    $event->sheet->setCellValue('H'.$row, $item['product_no']);
                    $event->sheet->setCellValue('I'.$row, $item['product_title']);
                    $event->sheet->setCellValue('J'.$row, $item['product_size']);
                    $event->sheet->setCellValue('K'.$row, $item['product_unit']);
                    $event->sheet->setCellValue('L'.$row, $item['order_quantity']);
                    $event->sheet->setCellValue('M'.$row, $item['production_quantity']);
                    $event->sheet->setCellValue('N'.$row, $item['not_production']);
                    $event->sheet->setCellValue('O'.$row, $item['technology_material']);
                    $event->sheet->setCellValue('P'.$row, $item['technology_name']);
                    $event->sheet->setCellValue('Q'.$row, $item['wood_name']);
                    $event->sheet->setCellValue('R'.$row, $item['process_mark']);
                    $event->sheet->setCellValue('S'.$row, $item['table_body_mark']);
                    $event->sheet->setCellValue('T'.$row, $item['out_crt_man']);

                    $row++; // 行数增加
                }
            },
        ];
    }
}