[轉]關於Java生成背景透明的png圖片

http://www.cnblogs.com/dotjava/archive/2008/09/04/1283963.html



BufferedImage bi = new BufferedImage(width, height,
Transparency.TRANSLUCENT);
Graphics2D g2d = bi.createGraphics();
g2d.drawImage(image, 0, 0, null);