java通用解析token

废话不多说，直接上代码

private String getUserCodeByToken(String token){
        String[] chunks = token.split("\\.");
        Base64.Decoder decoder = Base64.getUrlDecoder();
        String header = new String(decoder.decode(chunks[0]));
        String payload = new String(decoder.decode(chunks[1]));
        JSONObject userInform= JSON.parseObject(payload);
        return userInform.get("xxxx").toString();
    }