Java图片设置圆角

/**

* 图片设置圆角

* @param srcImage

* @return

* @throws IOException

*/

public static BufferedImage setRadius(BufferedImage srcImage)throws IOException{

    int radius = (srcImage.getWidth() + srcImage.getHeight()) /2;

    return setRadius(srcImage, radius,0,0);

}

/**

* 图片设置圆角

* @param srcImage

* @param radius

* @param border

* @param padding

* @return

* @throws IOException

*/

public static BufferedImage setRadius(BufferedImage srcImage,int radius,int border,int padding)throws IOException{

    int width = srcImage.getWidth();

    int height = srcImage.getHeight();

    int canvasWidth = width + padding *2;

    int canvasHeight = height + padding *2;

    BufferedImage image =new BufferedImage(canvasWidth, canvasHeight, BufferedImage.TYPE_INT_ARGB);

    Graphics2D gs = image.createGraphics();

    gs.setComposite(AlphaComposite.Src);

    gs.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

    gs.setColor(Color.white);

    gs.fill(new RoundRectangle2D.Float(0,0, canvasWidth, canvasHeight, radius, radius));

    gs.setComposite(AlphaComposite.SrcAtop);

    gs.drawImage(setClip(srcImage, radius), padding, padding,null);

    if(border !=0){

    gs.setColor(Color.GRAY);

    gs.setStroke(new BasicStroke(border));

    gs.drawRoundRect(padding, padding, canvasWidth -2 * padding, canvasHeight -2 * padding, radius, radius);

}

    gs.dispose();

    return image;

}

/**

* 图片切圆角

* @param srcImage

* @param radius

* @return

*/

public static BufferedImage setClip(BufferedImage srcImage,int radius){

    int width = srcImage.getWidth();

    int height = srcImage.getHeight();

    BufferedImage image =new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);

    Graphics2D gs = image.createGraphics();

    gs.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

    gs.setClip(new RoundRectangle2D.Double(0,0, width, height, radius, radius));

    gs.drawImage(srcImage,0,0,null);

    gs.dispose();

    return image;

}