请给我一个示例代码，使用ExcelToHtmlConverter工具类将excel转化成html，图片怎么一起转过去

好的，下面是一个使用 `ExcelToHtmlConverter` 工具类将 Excel 文件转换为 HTML 并将图片一起转换的示例代码：

import java.io.*;
import org.apache.poi.hssf.usermodel.*;
import org.apache.poi.ss.usermodel.*;
import org.apache.poi.ss.util.*;
import org.apache.poi.xssf.usermodel.*;
import org.apache.poi.ss.usermodel.Drawing;
import org.apache.poi.ss.usermodel.PictureData;
import org.apache.poi.hssf.usermodel.HSSFClientAnchor;
import org.apache.poi.xssf.usermodel.XSSFClientAnchor;
import org.apache.poi.ss.usermodel.ClientAnchor.AnchorType;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;
import org.apache.poi.util.IOUtils;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Cell;
import org.apache.poi.xssf.usermodel.XSSFDrawing;
import org.apache.poi.xssf.usermodel.XSSFPicture;
import org.apache.poi.xssf.usermodel.XSSFShape;

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

import org.apache.poi.ss.usermodel.ClientAnchor.AnchorType;

public class ExcelToHtmlConverterExample {

    public static void main(String[] args) throws Exception {

        // Load Excel file
        File inputFile = new File("input.xlsx");
        FileInputStream fis = new FileInputStream(inputFile);
        Workbook wb = WorkbookFactory.create(fis);

        // Configure HTML output
        ExcelToHtmlConverter converter = new ExcelToHtmlConverter(DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument());
        converter.setOutputColumnHeaders(false);
        converter.setOutputRowNumbers(false);

        // Convert Excel to HTML
        converter.processWorkbook(wb);

        // Get converted HTML
        Document htmlDocument = converter.getDocument();
        StringWriter stringWriter = new StringWriter();
        Transformer transformer = TransformerFactory.newInstance().newTransformer();
        transformer.setOutputProperty(OutputKeys.INDENT, "yes");
        transformer.setOutputProperty(OutputKeys.ENCODING, "UTF-8");
        transformer.setOutputProperty(OutputKeys.METHOD, "html");
        transformer.transform(new DOMSource(htmlDocument), new StreamResult(stringWriter));
        String html = stringWriter.toString();

        // Save HTML to file
        File outputFile = new File("output.html");
        FileWriter fw = new FileWriter(outputFile);
        fw.write(html);
        fw.close();

        // Convert images and save to file
        XSSFDrawing drawing = (XSSFDrawing) wb.getSheetAt(0).createDrawingPatriarch();
        for (XSSFShape shape : drawing.getShapes()) {
            if (shape instanceof XSSFPicture) {
                XSSFPicture picture = (XSSFPicture) shape;
                PictureData data = picture.getPictureData();
                String fileName = data.getFileName();
                byte[] bytes = data.getData();
                FileOutputStream out = new FileOutputStream("images/" + fileName);
                IOUtils.write(bytes, out);
                out.close();
            }
        }
    }

}

这个示例代码使用 `ExcelToHtmlConverter` 将 Excel 文件转换为 HTML，并使用 `XSSFDrawing` 类从 Excel 文件中提取图片，并将图片转换为二进制数据并保存在 `images` 目录中。

请注意，代码中的 `input.xlsx` 应该被替换为你要转换的实际 Excel 文件名。此外，你可能需要根据需要修改输出文件的名称和路径。