废话不多说直接上代码
/*** 处理头像* @param img*/public static void rotundity_img(String img) {try {// 读取图片BufferedImage bi1 = ImageIO.read(new File(img));// 创建一个带透明色的BufferedImageBufferedImage image = new BufferedImage(bi1.getWidth(), bi1.getHeight(),BufferedImage.TYPE_INT_ARGB);// 创建一个椭圆形的2D图像Ellipse2D.Double shape = new Ellipse2D.Double(0, 0, bi1.getWidth(), bi1.getHeight());Graphics2D g2 = image.createGraphics();image = g2.getDeviceConfiguration().createCompatibleImage(bi1.getWidth(), bi1.getHeight(), Transparency.TRANSLUCENT);g2 = image.createGraphics();/* g2.setColor(Color.WHITE);g2.fillRect(0, 0, WIDTH, HEIGHT);*/g2.setComposite(AlphaComposite.Clear);g2.fill(new Rectangle(image.getWidth(), image.getHeight()));g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC, 1.0f));g2.setClip(shape);g2.drawImage(bi1, 0, 0, null);g2.dispose();ImageIO.write(image, "png", new File(img));} catch (IOException e) {e.printStackTrace();}}
