将Excel模板与Apache POI一起使用

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

public class ExcelTemplateExample {
    public static void main(String[] args) throws IOException {
        // 读取Excel模板
        try (FileInputStream inputStream = new FileInputStream("template.xlsx")) {
            Workbook workbook = new XSSFWorkbook(inputStream);
            Sheet sheet = workbook.getSheetAt(0);

            // 填充数据
            Row row = sheet.createRow(1);
            Cell cell = row.createCell(0);
            cell.setCellValue("Hello, Apache POI!");

            // 保存Excel文件
            try (FileOutputStream outputStream = new FileOutputStream("output.xlsx")) {
                workbook.write(outputStream);
            }
        }
    }
}