要获取AWSIotMqttClient的实际连接状态，可以使用AWSIotMqttClientConnection类的getState()方法。以下是一个代码示例：

import com.amazonaws.services.iot.client.AWSIotMqttClient;
import com.amazonaws.services.iot.client.AWSIotMqttClientConnection;

public class Main {
    public static void main(String[] args) {
        String clientId = "your-client-id";
        String endpoint = "your-iot-endpoint";
        String certificateFile = "your-certificate-file";
        String privateKeyFile = "your-private-key-file";

        AWSIotMqttClient client = new AWSIotMqttClient(endpoint, clientId, certificateFile, privateKeyFile);

        // 连接到AWS IoT
        client.connect();

        // 获取连接状态
        AWSIotMqttClientConnection connection = client.getConnection();
        AWSIotMqttClientConnection.ConnectionState state = connection.getState();

        // 打印连接状态
        System.out.println("连接状态：" + state.toString());

        // 断开连接
        client.disconnect();
    }
}

在上面的代码中，我们创建了一个AWSIotMqttClient对象并连接到AWS IoT。然后，我们获取与AWSIotMqttClient关联的AWSIotMqttClientConnection对象，并使用getState()方法获取连接状态。最后，我们打印连接状态并断开连接。

请确保替换代码中的"your-client-id"、"your-iot-endpoint"、"your-certificate-file"和"your-private-key-file"等占位符与实际值相对应。