获取无效令牌以进行订阅确认HTTPS端点

Question

我正在与AWS SNS一起确认订阅端点，并与请求一起获取了带有令牌的整个数据，但是当我传递相同的令牌以确认用于订阅的https端点时，那么我将获得无效的令牌...

我的代码：

@Value("${accessKey}")
private String accessKey;

@Value("${secretKey}")
private String secretKey;

@Value("${topicArn}")
private String topicArn;


@NotificationSubscriptionMapping
public void handleSubscriptionMessage(HttpServletRequest request) throws IOException {
/*      String token = "";
    String reqData = "";

    logger.info("Received Subscription Message. Confirming...");

    AmazonSNSClient client = getCredentials();

    try {
        reqData = IOUtils.toString(request.getInputStream());
        logger.info("reqData : " + reqData);
        JsonObject jsonData = new Gson().fromJson(reqData, JsonObject.class);
        logger.info("jsonData : " + jsonData);
        token = jsonData.get("Token").toString();
        logger.info("Token : " + token);
    } catch (IOException e) {
        e.printStackTrace();
    }

    ConfirmSubscriptionRequest confirmSubscriptionRequest = new ConfirmSubscriptionRequest().withTopicArn(topicArn)
            .withToken(token);

    ConfirmSubscriptionResult confirmSubscriptionResult = client.confirmSubscription(confirmSubscriptionRequest);

}

private AmazonSNSClient getCredentials() {
    AWSCredentials awsCredentials = new BasicAWSCredentials(accessKey, secretKey);
    final AmazonSNSClient client = new AmazonSNSClient(awsCredentials);
    client.setRegion(Region.getRegion(Regions.US_EAST_1));
    return client;
}