Question

我对AWS IoT有疑问。我一个月使用相同的代码。但突然间它停止了工作。我在AWS IoT上使用Mqtt over Websocket。

这是我使用的简单代码。

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

public class ThingMain {

    public static void main(String[] args) {

        String clientEndpoint = "endpoint.iot.us-west-2.amazonaws.com";
        String clientId = "testing";

        AWSIotMqttClient client = new AWSIotMqttClient(clientEndpoint, clientId, "accessKey", "secretKey");

        try {
            client.connect();
        } catch (AWSIotException e) {
            e.printStackTrace();
        }
   }
}

我得到了这个日志：

AVERTISSEMENT: Connect request failure
MqttException (0) - java.io.IOException: WebSocket Response header: Incorrect connection header
    at org.eclipse.paho.client.mqttv3.internal.ExceptionHelper.createMqttException(ExceptionHelper.java:38)
    at org.eclipse.paho.client.mqttv3.internal.ClientComms$ConnectBG.run(ClientComms.java:690)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.io.IOException: WebSocket Response header: Incorrect connection header
    at org.eclipse.paho.client.mqttv3.internal.websocket.WebSocketHandshake.receiveHandshakeResponse(WebSocketHandshake.java:144)
    at org.eclipse.paho.client.mqttv3.internal.websocket.WebSocketHandshake.execute(WebSocketHandshake.java:74)
    at org.eclipse.paho.client.mqttv3.internal.websocket.WebSocketSecureNetworkModule.start(WebSocketSecureNetworkModule.java:77)
    at org.eclipse.paho.client.mqttv3.internal.ClientComms$ConnectBG.run(ClientComms.java:676)
    ... 1 more

avr. 04, 2017 11:00:55 PM 
com.amazonaws.services.iot.client.core.AwsIotConnection onConnectionFailure
INFOS: Connection temporarily lost
avr. 04, 2017 11:00:55 PM 
com.amazonaws.services.iot.client.core.AbstractAwsIotClient onConnectionFailure
INFOS: Client connection lost: leet
avr. 04, 2017 11:00:58 PM 
com.amazonaws.services.iot.client.core.AwsIotConnection$1 run
INFOS: Connection is being retried

在这个阶段我不知道出了什么问题。我正在使用这个代码一个月。什么都没有改变，现在它停止了工作。

如果有人可以帮我解决这个问题，那就太棒了。感谢。

Answer 1

https://github.com/aws/aws-iot-device-sdk-java/issues/23

可能是由于org.eclipse.paho升级v1.1.1

Answer 2

我也有同样的问题，实际上，如果您在多个区域使用相同的访问密钥和秘密密钥，您将面临此问题。我为每个区域创建了不同的用户。它解决了这个问题。

使用AWS IoT通过Websocket上的MQTT连接头不正确

2 个答案: