连接到AWS IoT核心失败会引发连接错误-iOS迅速

Question

将应用程序连接到AWS IoT Core时遇到一些问题。当我尝试连接时会导致connectionError。代码无法在此处建立连接。任何帮助人员，在此先感谢

private func initializeConnectionAwsIotCore() {
    guard let awsIotConnectCredentials = getAwsIotConnectCredentials(),let iotCoreEndPoint = awsIotConnectCredentials.iotCoreEndPoint ,let accessId = awsIotConnectCredentials.awsAccessId,let secretKey = awsIotConnectCredentials.awsSecretAccessKey else {
        return
    }
    AWSMobileClient.default().initialize { (userState, error) in
        if error != nil {
            AppDelegate.getAppDelegate().log.debug("Failed to Initialize AWSMobileClient. Error : \(error!.localizedDescription)")
            return
        }
    }
    let awsCredentialProvider = CustomAwsCredentialProvider(accessKey: accessId, secretKey: secretKey)
    let iotEndPoint = AWSEndpoint(urlString: iotCoreEndPoint)
    let iotDataConfiguration = AWSServiceConfiguration(region: .USEast1,
                                                       endpoint: iotEndPoint,
                                                       credentialsProvider: awsCredentialProvider)
    AWSIoTDataManager.register(with: iotDataConfiguration!, forKey: AwsIotEventServiceConnection.AWS_IOT_DATA_MANAGER)
    self.awsIotDataManager = AWSIoTDataManager(forKey: AwsIotEventServiceConnection.AWS_IOT_DATA_MANAGER)
    mqttConnection = AwsIotEventServiceConnection(iotCoreEndPoint: iotCoreEndPoint, cleanSession: getCleanSession(), clientId: getClientId(),newMessageCallback: { (payload) in
        self.onNewMessageArrivedFromAWSIotCore(payload: payload)
    }, awsIotDataManager: self.awsIotDataManager, mqttCallback: self)
    connectToMqtt()
}

private func connectToMqtt() {
     self.mqttConnection!.connect()
}
  func connect() {
    guard let clientId = self.clientId else { return }
    awsIotDataManager?.connectUsingWebSocket(withClientId: clientId, cleanSession: cleanSession, statusCallback: { (status) in
        self.handleMqttCallback(status)
    })
  }

这是连接到AWS IoT Core的正确方法。尝试使用发布在媒介上的示例代码