将BuffereImage转换为JPEG格式的字节数组

Posted 2021-02-27

i use it so save bufferedImages into a DB as Blob

public static byte[] bufferedImageToByteArray(BufferedImage img) throws ImageFormatException, IOException{
		ByteArrayOutputStream os = new ByteArrayOutputStream();
		JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(os);
		encoder.encode(img);
		return os.toByteArray();	
	}