To get a similar php md5 or postgresql md5 function on java then try this code.
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
public class Md5Util {
public static String byteArrayToHex(byte[] a) {
StringBuilder sb = new StringBuilder(a.length * 2);
for(byte b: a)
sb.append(String.format("%02x", b));
return sb.toString();
}
public static String Hash(String input) throws NoSuchAlgorithmException {
MessageDigest md = MessageDigest.getInstance("MD5");
md.update(input.getBytes());
byte[] digest = md.digest();
return byteArrayToHex(digest);
}
}