public static String getUsername(String token) {
        List<String> userInfo = Arrays.asList(getTokenBody(token).getSubject().split(Constants.SPLIT_COMMA));
        return userInfo.get(1);
    }
@Test
    public void getUsername() {
        String name = JwtTokenUtil.getUsername(token);
        Assert.isTrue(username.equals(name));
    }