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POI操作EXCEL插入图片

依赖

<dependency><groupId>org.apache.poi</groupId><artifactId>poi</artifactId><version>4.1.2</version>
</dependency>
<dependency><groupId>org.apache.poi</groupId><artifactId>poi-ooxml</artifactId><version>4.1.2</version>
</dependency>

使用HSSFPatriarch来将图片写入EXCEL中

java">BufferedImage bufferImg;//图片
ByteArrayOutputStream byteArrayOut = null;
try {// 先把读进来的图片放到一个ByteArrayOutputStream中，以便产生ByteArraybyteArrayOut = new ByteArrayOutputStream();//将图片读到BufferedImageInputStream resource = Thread.currentThread().getContextClassLoader().getResourceAsStream(imageName);if(resource == null){throw new BusinessException("%s资源不存在",imageName);}bufferImg = ImageIO.read(resource);// 将图片写入流中ImageIO.write(bufferImg, "png", byteArrayOut);// 利用HSSFPatriarch将图片写入EXCELHSSFPatriarch patriarch = sheet.createDrawingPatriarch();// 定义单元格位置HSSFCreationHelper creationHelper = workbook.getCreationHelper();HSSFClientAnchor clientAnchor = creationHelper.createClientAnchor();clientAnchor.setCol1(columnNo);clientAnchor.setRow1(rowNo);// 插入图片  PICTURE_TYPE_PNG是图片的类型HSSFPicture picture = patriarch.createPicture(clientAnchor, workbook.addPicture(byteArrayOut.toByteArray(), HSSFWorkbook.PICTURE_TYPE_PNG));picture.resize(2.5);} catch (IOException e) {LOGGER.error("图片写入excel失败", e);
} finally {if (byteArrayOut != null) {try {byteArrayOut.close();} catch (IOException e) {LOGGER.error("关闭流失败", e);}}}

注：在将图片添加到工作簿中时，必须将其存储为字节数组

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参考文献

• POI操作EXCEL插入图片