HybridbpmCoreUtil.java 文件源码

public static String generateToken(String username) throws NoSuchAlgorithmException, UnsupportedEncodingException {
    try {
        SecureRandom random = new SecureRandom();
        String token_data = UUID.randomUUID().toString() + username + System.nanoTime() + new BigInteger(32, random).toString(32);
        MessageDigest md = MessageDigest.getInstance("MD5");
        md.update(token_data.getBytes("UTF-8"));
        byte[] bytes = md.digest();
        return new HexBinaryAdapter().marshal(bytes);
    } catch (NoSuchAlgorithmException | UnsupportedEncodingException ex) {
        logger.severe(ex.getMessage());
    }
    return null;
}