POI按不同格式导出图片

//图片路径

String imgSrc = user.getResume().getUsertouxiang();

//图片后缀

String imgSuffix = imgSrc.substring(imgSrc.lastIndexOf(".") + 1).trim().toLowerCase();

int ptype = 0;

        if("png".equalsIgnoreCase(imgSuffix)){

            ptype = HSSFWorkbook.PICTURE_TYPE_PNG;

        }else if("jpg".equalsIgnoreCase(imgSuffix) || "jpeg".equalsIgnoreCase(imgSuffix)){

            ptype = HSSFWorkbook.PICTURE_TYPE_JPEG;

        }else{

            ptype = -1;

        }

try {

bufferImg = ImageIO.read(new File(imgSrc));

ImageIO.write(bufferImg, imgSuffix, byteArrayOut);

//画图的顶级管理器，一个sheet只能获取一个

            HSSFPatriarch patriarch = sheet.createDrawingPatriarch();   

            //anchor主要用于设置图片的属性 

            HSSFClientAnchor anchor = new HSSFClientAnchor(35, 40, 912, 220,(short) 11, 4, (short) 13, 9);

            //插入图片   

            patriarch.createPicture(anchor, wb.addPicture(byteArrayOut.toByteArray(), ptype));

} catch (IOException e) {

e.printStackTrace();

}