有没有办法从excel中提取图表，并使用java将其转换为图像格式？

import org.apache.poi.ss.usermodel.*;
import org.apache.poi.xssf.usermodel.*;
import org.apache.poi.ss.util.*;
import java.awt.*;
import java.awt.image.*;
import java.io.*;

public class ExcelChartToImageConverter {
    public static void main(String[] args) {
        try {
            // 加载Excel文件
            FileInputStream fileInputStream = new FileInputStream("path/to/excel.xlsx");
            Workbook workbook = new XSSFWorkbook(fileInputStream);
            
            // 获取工作表
            Sheet sheet = workbook.getSheetAt(0);
            
            // 获取图表
            Drawing<?> drawing = sheet.getDrawingPatriarch();
            Chart chart = drawing.getCharts().get(0);
            
            // 创建图像
            int width = 600; // 图像宽度
            int height = 400; // 图像高度
            BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
            Graphics2D graphics = image.createGraphics();
            
            // 渲染图表为图像
            chart.plot(graphics, new Rectangle(width, height));
            graphics.dispose();
            
            // 将图像保存为PNG文件
            File output = new File("path/to/output.png");
            ImageIO.write(image, "png", output);
            
            // 关闭文件输入流和工作簿
            fileInputStream.close();
            workbook.close();
            
            System.out.println("图表已成功转换为图像。");
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}