java image to base64 example
public void imageEncoderDecoder() throws IOException { // image path declaration String imgPath = "src/main/resources/images/bean.png"; // read image from file FileInputStream stream = new FileInputStream(imgPath); // get byte array from image stream int bufLength = 2048; byte[] buffer = new byte[2048]; byte[] data; ByteArrayOutputStream out = new ByteArrayOutputStream(); int readLength; while ((readLength = stream.read(buffer, 0, bufLength)) != -1) { out.write(buffer, 0, readLength); } data = out.toByteArray(); String imageString = Base64.getEncoder().withoutPadding().encodeToString(data); byte[] decodeImg = Base64.getDecoder().decode(imageString); out.close(); stream.close(); // System.out.println("Encode Image Result : " + imageString); System.out.println("Decode Image Result : " + Arrays.toString(decodeImg)); }
