如何使用 POI API 在 Excel Cell 上删除换行符

   <groupId>org.apache.poi</groupId>
   <artifactId>poi</artifactId>
   <version>5.2.1</version>
</dependency><dependency>
   <groupId>org.apache.poi</groupId>
   <artifactId>poi-ooxml</artifactId>
   <version>5.2.1</version>
</dependency>

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

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;

public class POIExample {
    public static void main(String[] args) throws IOException {
        // 读取 Excel 文件
        FileInputStream inputStream = new FileInputStream("input.xlsx");
        Workbook workbook = new XSSFWorkbook(inputStream);
        Sheet sheet = workbook.getSheetAt(0);
        Row row = sheet.getRow(0);
        Cell cell = row.getCell(0);

        // 删除换行符
        String cellValue = cell.getStringCellValue();
        String newValue = cellValue.replaceAll("\\r\\n|\\r|\\n", "");
        cell.setCellValue(newValue);

        // 保存更改后的 Excel 文件
        FileOutputStream outputStream = new FileOutputStream("output.xlsx");
        workbook.write(outputStream);
        outputStream.close();
        workbook.close();
    }
}