解决专家头像png图片保存成JPG格式会变红的问题。

src/main/java/com/ekexiu/portal/service/ImageService.java

	@Path("/head")
	public void saveHeadPhoto(String id, String fn,int x,int y,int w,int h) throws JfwBaseException, SQLException, IOException {
		byte[] src = this.readTmpFile(fn);
		//png图片保存为JPG格式时透明底色会变红的问题
//		BufferedImage im = ImageIO.read(new ByteArrayInputStream(src));
//		BufferedImage newBufferedImage = new BufferedImage(im.getWidth(),im.getHeight(), BufferedImage.TYPE_INT_RGB);
//		newBufferedImage.createGraphics().drawImage(im, 0, 0, Color.WHITE, null);
//		ByteArrayOutputStream os = new ByteArrayOutputStream();
//		ImageIO.write(newBufferedImage, "jpg", os);
//		src = os.toByteArray();
		src = JpgUtil.read(src);
		ByteArrayOutputStream os = new ByteArrayOutputStream();
		JpgUtil.cutByPerCent(new ByteArrayInputStream(src), os, x, y, w, h);
		src = os.toByteArray();
		ByteArrayOutputStream bos = new ByteArrayOutputStream();
		JpgUtil.cutByPerCent(new ByteArrayInputStream(src), bos, x, y, w, h);
		src = bos.toByteArray();
//		byte[] li = this.zoomImage(src, this.largeHeadPhotoWidth, this.largeHeadPhotoHeight);
		byte[] mi = this.zoomImage(src, this.middleHeadPhotoWidth, this.middleHeadPhotoHeight);
		byte[] si = this.zoomImage(src, this.smallHeadPhotoWidth, this.smallHeadPhotoHeight);