Bom dia!
Estou usando esta classe para encoder para base64 que encontrei pronta já na WEB, aparentemente ela funcina normal, gostaria de saber se existe uma classe nativa do JAVA ou outra forma melhor para encoder…
Segue a CLASSE, aceito sugestões! Abraços!
public class Base64 {
private static final String base64code = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+ "abcdefghijklmnopqrstuvwxyz" + "[telefone removido]" + "+/";
private static final int splitLinesAt = 76;
public static byte[] zeroPad(int length, byte[] bytes) {
byte[] padded = new byte[length]; // initialized to zero by JVM
System.arraycopy(bytes, 0, padded, 0, bytes.length);
return padded;
}
public static String encode(String string) {
String encoded = "";
byte[] stringArray;
try {
stringArray = string.getBytes("UTF-8"); // use appropriate encoding string!
} catch (Exception ignored) {
stringArray = string.getBytes(); // use locale default rather than croak
}
// determine how many padding bytes to add to the output
int paddingCount = (3 - (stringArray.length % 3)) % 3;
// add any necessary padding to the input
stringArray = zeroPad(stringArray.length + paddingCount, stringArray);
// process 3 bytes at a time, churning out 4 output bytes
// worry about CRLF insertions later
for (int i = 0; i < stringArray.length; i += 3) {
int j = ((stringArray[i] & 0xff) << 16) +
((stringArray[i + 1] & 0xff) << 8) +
(stringArray[i + 2] & 0xff);
encoded = encoded + base64code.charAt((j >> 18) & 0x3f) +
base64code.charAt((j >> 12) & 0x3f) +
base64code.charAt((j >> 6) & 0x3f) +
base64code.charAt(j & 0x3f);
}
// replace encoded padding nulls with "="
return splitLines(encoded.substring(0, encoded.length() -
paddingCount) + "==".substring(0, paddingCount));
}
public static String splitLines(String string) {
String lines = "";
for (int i = 0; i < string.length(); i += splitLinesAt) {
lines += string.substring(i, Math.min(string.length(), i + splitLinesAt));
lines += "\r\n";
}
return lines;
}
}