方式一

从网上搜索出来的方案

BufferedImage bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);Graphics2D graphics = bufferedImage.createGraphics();bufferedImage = graphics.getDeviceConfiguration().createCompatibleImage(width, height, Transparency.TRANSLUCENT);复制代码

方式二

稍微精简

BufferedImage bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);BufferedImageGraphicsConfig config = BufferedImageGraphicsConfig.getConfig(bufferedImage);bufferedImage =config.createCompatibleImage(width, height, Transparency.TRANSLUCENT);复制代码

方式三

最底层代码

ColorModel cm = ColorModel.getRGBdefault();WritableRaster wr = cm.createCompatibleWritableRaster(width, height);BufferedImage bufferedImage = new BufferedImage(cm, wr, cm.isAlphaPremultiplied(), null);复制代码