如何使用apache poi递增excel中的行？

import org.apache.poi.ss.usermodel.*;

public class ExcelIncrement {
    public static void main(String[] args) {
        String filePath = "path/to/excel/file.xlsx";
        String sheetName = "Sheet1";
        int rowIndex = 1; // 要递增的行索引

        try {
            // 创建Workbook对象
            Workbook workbook = WorkbookFactory.create(new File(filePath));

            // 获取Sheet对象
            Sheet sheet = workbook.getSheet(sheetName);

            // 获取要递增的行
            Row row = sheet.getRow(rowIndex);

            // 递增行的内容
            if (row == null) {
                row = sheet.createRow(rowIndex);
            }

            Cell cell = row.createCell(0);
            cell.setCellValue("New Value");

            // 保存修改后的Excel文件
            FileOutputStream outputStream = new FileOutputStream(filePath);
            workbook.write(outputStream);
            workbook.close();
            outputStream.close();

            System.out.println("行递增成功！");
        } catch (IOException | EncryptedDocumentException ex) {
            ex.printStackTrace();
        }
    }
}