Java Utililty Methods Base64 Convert to

List of utility methods to do Base64 Convert to

  1. HOME
  2. Java
  3. B
  4. Base64 Convert to

Description

The list of methods to do Base64 Convert to are organized into topic(s).

Method

byte[]base642byte(String base64)
basebyte 
BASE64Decoder base64Decoder = new BASE64Decoder();
return base64Decoder.decodeBuffer(base64);
InputStreambase64StrToStream(String base64Str)
base Str To Stream 
if (base64Str == null) {
    throw new NullPointerException();
BASE64Decoder decoder = new BASE64Decoder();
byte[] b = decoder.decodeBuffer(base64Str);
return byteTostream(b);
byte[]base64ToByte(String data)
From a base 64 representation, returns the corresponding byte[] 
BASE64Decoder decoder = new BASE64Decoder();
return decoder.decodeBuffer(data);
byte[]base64ToByteArray(String data)
Converts a base64 encoded string to a byte array 
if (data == null) {
    return null;
if (data.length() % 4 != 0) {
    return null;
ByteArrayOutputStream result = new ByteArrayOutputStream();
int offset = 0;
...
voidbase64ToFile(String base64Code, String targetPath)
base64 code save to file 
byte[] buffer = base64Code.getBytes();
FileOutputStream out = new FileOutputStream(targetPath);
out.write(buffer);
out.close();
byte[]fromBase64(byte[] buf, int start, int length)
from Base 
byte[] foo = new byte[length];
int j = 0;
for (int i = start; i < start + length; i += 4) {
    foo[j] = (byte) ((val(buf[i]) << 2) | ((val(buf[i + 1]) & 0x30) >>> 4));
    if (buf[i + 2] == (byte) '=') {
        j++;
        break;
    foo[j + 1] = (byte) (((val(buf[i + 1]) & 0x0f) << 4) | ((val(buf[i + 2]) & 0x3c) >>> 2));
    if (buf[i + 3] == (byte) '=') {
        j += 2;
        break;
    foo[j + 2] = (byte) (((val(buf[i + 2]) & 0x03) << 6) | (val(buf[i + 3]) & 0x3f));
    j += 3;
byte[] bar = new byte[j];
System.arraycopy(foo, 0, bar, 0, j);
return bar;
StringfromBase64(final String encoded)
Decode a String from its base64 representation. 
final byte[] bytearray = Base64.getDecoder().decode(encoded);
return (new String(bytearray));
byte[]fromBase64(final String input)
Convert Base64 string to byte array. 
String tmp = input.replace("\r\n", "");
if (tmp.length() % 4 != 0) {
    throw new IllegalArgumentException("Invalid base64 input");
int len = (tmp.length() * 3) / 4;
int pos = tmp.indexOf('=');
if (pos > 0) {
    len -= tmp.length() - pos;
...
byte[]fromBase64(String base64)
from Base 
return Base64.getDecoder().decode(base64);
byte[]fromBase64(String base64Text)
Decodes the specified text with Base64 characters in binary. 
return Base64.getDecoder().decode(base64Text);