oms/back/application/api/controller/Excel.php

<?php
namespace app\api\controller;

use PHPExcel;
use PHPExcel_Writer_Excel2007;
use think\Db;

header("Access-Control-Allow-Origin:*");
header("Access-Control-Allow-Methods:GET, POST, OPTIONS, DELETE");
header("Access-Control-Allow-Headers:DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type, Accept-Language, Origin, Accept-Encoding");
class Excel extends Common
{
    public function excelDownload()
    {
        vendor("PHPExcel.PHPExcel.PHPExcel");
        vendor("PHPExcel.PHPExcel.Writer.Excel2007");

        $objPHPExcel = new PHPExcel();
        $sheet = $objPHPExcel->getActiveSheet();

        $sheet->setCellValue('A1', '一级')
            ->setCellValue('B1', '二级')
            ->setCellValue('C1', '三级')
            ->setCellValue('D1', '资产编号')
            ->setCellValue('E1', '资产名称')
            ->setCellValue('F1', '资产价格')
            ->setCellValue('G1', '入库时间')
            ->setCellValue('H1', '资产总量')
            ->setCellValue('I1', '申领余量');

        $sql = "
        SELECT 
            t1.asset_number,
            t1.asset_name,
            t1.asset_price,
            t1.create_time,
            t1.asset_count,
            t1.asset_margin,
            COALESCE(l1.type_name, '无分类') AS level1,
            COALESCE(l2.type_name, '无分类') AS level2,
            COALESCE(l3.type_name, '无分类') AS level3
        FROM 
            wdq_asset_info t1
        LEFT JOIN 
            wdq_asset_type l3 ON t1.asset_type = l3.type_id
        LEFT JOIN 
            wdq_asset_type l2 ON l3.super_type_id = l2.type_id
        LEFT JOIN 
            wdq_asset_type l1 ON l2.super_type_id = l1.type_id
        ORDER BY 
            level1, level2, level3 ";
        $result = Db::query($sql);

        $row = 2;
        foreach ($result as $item) {
            $sheet
                ->setCellValue("A" . $row, $item['level1'])
                ->setCellValue("B" . $row, $item['level2'])
                ->setCellValue("C" . $row, $item['level3'])
                ->setCellValue("D" . $row, $item['asset_number'])
                ->setCellValue("E" . $row, $item['asset_name'])
                ->setCellValue("F" . $row, (string)$item['asset_price'])
                ->setCellValue("G" . $row, $item['create_time'])
                ->setCellValue("H" . $row, (string)$item['asset_count'])
                ->setCellValue("I" . $row, (string)$item['asset_margin']);
            $row++;
        }

        header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
        header('Content-Disposition: attachment;filename="资产信息表.xlsx"');
        header('Cache-Control: max-age=0');

        $objWriter = new PHPExcel_Writer_Excel2007($objPHPExcel);
        $objWriter->save('php://output');
    }

    public function excelProjectDownload()
    {
        vendor("PHPExcel.PHPExcel.PHPExcel");
        vendor("PHPExcel.PHPExcel.Writer.Excel2007");

        $param = request()->post('data');
        $param = json_decode($param, true);

        if (empty($param)) {
            die(json_encode(['error' => '无数据接收']));
        }

        $objPHPExcel = new PHPExcel();
        $sheet = $objPHPExcel->getActiveSheet();

        $sheet->setCellValue('A1', '项目名称')
            ->setCellValue('B1', '问题描述')
            ->setCellValue('C1', '问题等级')
            ->setCellValue('D1', '创建人')
            ->setCellValue('E1', '责任人')
            ->setCellValue('F1', '问题状态')
            ->setCellValue('G1', '创建时间')
            ->setCellValue('H1', '完成时间');

        $row = 2;
        foreach ($param as $item) {
            $ret = db('project_issue_state')->where('id', $item['issue_state'])->field('desp')->find();

            switch ($item['issue_level']) {
                case 1:
                    $item['issue_level_name'] = "一般问题";
                    break;
                case 2:
                    $item['issue_level_name'] = "严重问题";
                    break;
                case 3:
                    $item['issue_level_name'] = "致命问题";
                    break;
                default:
                    $item['issue_level_name'] = "未知问题";
                    break;
            }

            $sheet->setCellValue("A" . $row, $item['project_name'] ?? '')
                ->setCellValue("B" . $row, $item['issue_desp'] ?? '')
                ->setCellValue("C" . $row, $item['issue_level_name'] ?? '')
                ->setCellValue("D" . $row, $item['issue_creator_name'] ?? '')
                ->setCellValue("E" . $row, $item['issue_processor_name'] ?? '')
                ->setCellValue("F" . $row, $ret['desp'] ?? '')
                ->setCellValue("G" . $row, $item['create_time'] ?? '')
                ->setCellValue("H" . $row, $item['real_close_time'] ?? '');
            $row++;
        }

        header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
        header('Content-Disposition: attachment;filename="项目问题单列表.xlsx"');
        header('Cache-Control: max-age=0');

        $objWriter = new PHPExcel_Writer_Excel2007($objPHPExcel);
        $objWriter->save('php://output');
        exit;
    }

    public function excelImport()
    {

    }
}