Question

如何将BufferedImage写入fileinputStream

Answer 1

BufferedImage -> InputStream

URL url = new URL("google.com/intl/en_ALL/images/logo.gif");

BufferedImage image = ImageIO.read(url);

ByteArrayOutputStream os = new ByteArrayOutputStream();

ImageIO.write(image, "gif", os);

InputStream is = new ByteArrayInputStream(os.toByteArray());