如何在不使用Dataweave中的列名的情况下创建Excel文件的键值映射？

Workbook workbook = new XSSFWorkbook();
Sheet sheet = workbook.createSheet("Sheet1");

Map<Integer, Object[]> data = new HashMap<>();
data.put(0, new Object[]{"A1", "A2", "A3"});
data.put(1, new Object[]{"B1", "B2", "B3"});
data.put(2, new Object[]{"C1", "C2", "C3"});

Set<Integer> keySet = data.keySet();
int rowNum = 0;
for (Integer key : keySet) {
    Row row = sheet.createRow(rowNum++);
    Object[] rowData = data.get(key);
    int cellNum = 0;
    for (Object obj : rowData) {
        Cell cell = row.createCell(cellNum++);
        cell.setCellValue(obj.toString());
    }
}

try (FileOutputStream outputStream = new FileOutputStream("path/to/excel.xlsx")) {
    workbook.write(outputStream);
}