Comment utiliser PHP et UniApp pour importer et exporter des données dans Excel

{
    "require": {
        "phpoffice/phpexcel": "^1.8"
    }
}

<?php
require 'vendor/autoload.php';
use PhpOfficePhpSpreadsheetIOFactory;

if ($_FILES['file']['error'] == 0) {
    $file = $_FILES['file']['tmp_name'];
    $reader = IOFactory::createReader('Xlsx');
    $spreadsheet = $reader->load($file);
    $worksheet = $spreadsheet->getActiveSheet();
    
    // 获取数据并处理
    $data = [];
    foreach ($worksheet->getRowIterator() as $row) {
        $rowData = [];
        foreach ($row->getCellIterator() as $cell) {
            $rowData[] = $cell->getValue();
        }
        $data[] = $rowData;
    }
    
    // 处理数据
    // ...
    
    // 返回处理结果
    echo json_encode([
        'status' => 1,
        'message' => '上传成功'
    ]);
} else {
    echo json_encode([
        'status' => 0,
        'message' => '上传失败'
    ]);
}
?>

export default {
    methods: {
        importExcel() {
            uni.chooseMessageFile({
                count: 1,
                success: (res) => {
                    const tempFilePath = res.tempFiles[0].path;
                    uni.uploadFile({
                        url: 'http://localhost/import.php',
                        filePath: tempFilePath,
                        name: 'file',
                        success: (res) => {
                            const data = JSON.parse(res.data);
                            if (data.status === 1) {
                                uni.showToast({
                                    title: '导入成功',
                                    icon: 'success'
                                });
                            } else {
                                uni.showToast({
                                    title: '导入失败',
                                    icon: 'none'
                                });
                            }
                        },
                        fail: () => {
                            uni.showToast({
                                title: '上传失败',
                                icon: 'none'
                            });
                        }
                    });
                }
            });
        }
    }
}

<?php
require 'vendor/autoload.php';
use PhpOfficePhpSpreadsheetSpreadsheet;
use PhpOfficePhpSpreadsheetWriterXlsx;

// 获取数据
$data = [
    ['name', 'age', 'gender'],
    ['Tom', 20, 'Male'],
    ['Lisa', 25, 'Female'],
    // ...
];

// 创建Excel文件
$spreadsheet = new Spreadsheet();
$worksheet = $spreadsheet->getActiveSheet();
$worksheet->fromArray($data);

// 下载文件
$writer = new Xlsx($spreadsheet);
header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
header('Content-Disposition: attachment;filename="export.xlsx"');
$writer->save('php://output');
?>

export default {
    methods: {
        exportExcel() {
            uni.downloadFile({
                url: 'http://localhost/export.php',
                success: (res) => {
                    uni.saveFile({
                        tempFilePath: res.tempFilePath,
                        success: (res) => {
                            uni.showToast({
                                title: '导出成功',
                                icon: 'success'
                            });
                        }
                    });
                },
                fail: () => {
                    uni.showToast({
                        title: '导出失败',
                        icon: 'none'
                    });
                }
            });
        }
    }
}