P.S.請在結束任何事情之前閱讀整個問題。丟失連接(32109) - java.io.EOFException(MqttAndroidClient)
我得到以下異常時連接方法被稱爲:
連接丟失(32109) - java.io.EOFException的 在org.eclipse.paho.client.mqttv3.internal.CommsReceiver.run (CommsReceiver.java:146) at java.lang.Thread.run(Thread.java:818) 由於:java.io.EOFException at java.io.DataInputStream.readByte(DataInputStream.java:77) at org.eclipse.paho.client.mqttv3.internal.wire.MqttInputStream.readMqttWireMessage(MqttInputStream.java:65) at org.eclipse.paho.client.mqttv3.internal.CommsReceiver.run (CommsReceiver.java:107)
我已經嘗試了幾個代碼片段,但他們都提出了相同的異常。
方法1
private final String serverUri = "tcp://95.177.135.232:9001";
private void mqqtConnectAndroidClient() {
String clientId = "clientID-" + MqttClient.generateClientId();
mqttAndroidClient = new MqttAndroidClient(getMainActivity(), serverUri, clientId);
MqttConnectOptions mqttConnectOptions = new MqttConnectOptions();
mqttConnectOptions.setKeepAliveInterval(60);
mqttConnectOptions.setCleanSession(true);
mqttConnectOptions.setMqttVersion(MqttConnectOptions.MQTT_VERSION_3_1_1);
try {
mqttAndroidClient.connect(mqttConnectOptions, null, new IMqttActionListener() {
@Override
public void onSuccess(IMqttToken asyncActionToken) {
subscribeToTopic();
}
@Override
public void onFailure(IMqttToken asyncActionToken, Throwable exception) {
AppLog.Error("Failed to connect to: " + serverUri);
exception.printStackTrace();
}
});
} catch (MqttException e) {
e.printStackTrace();
}
}
方法2
private final String serverUri = "tcp://95.177.135.232:9001";
private void methodTwo() {
try {
MqttDefaultFilePersistence mdfp = new MqttDefaultFilePersistence(MQTT_DIR);
mqttClient = new MqttClient(serverUri, "1", mdfp);
MqttConnectOptions options = new MqttConnectOptions();
options.setMqttVersion(MqttConnectOptions.MQTT_VERSION_3_1_1);
options.setKeepAliveInterval(60);
options.setAutomaticReconnect(true);
options.setCleanSession(true);
mqttClient.connect(options);
mqttClient.subscribe("#");
mqttClient.setCallback(new MqttCallback() {
@Override
public void connectionLost(Throwable arg0) {
AppLog.Error("Connection lost");
try {
mqttClient.connect();
} catch (MqttException e) {
e.printStackTrace();
}
}
@Override
public void deliveryComplete(IMqttDeliveryToken arg0) {
AppLog.Error("deliveryComplete");
}
@Override
public void messageArrived(String arg0, MqttMessage arg1) throws Exception {
AppLog.Error("messageArrived");
AppLog.Error(arg1.toString());
}
});
} catch (MqttException e) {
AppLog.Error("Main Exception");
e.printStackTrace();
}
}
訂閱方法
public void subscribeToTopic() {
try {
String subscriptionTopic = "#";
mqttAndroidClient.subscribe(subscriptionTopic, 0, null, new IMqttActionListener() {
@Override
public void onSuccess(IMqttToken asyncActionToken) {
AppLog.Error("Subscribed!");
}
@Override
public void onFailure(IMqttToken asyncActionToken, Throwable exception) {
AppLog.Error("Failed to subscribe");
}
});
} catch (MqttException ex) {
System.err.println("Exception whilst subscribing");
ex.printStackTrace();
}
}
如果我嘗試在同一臺服務器在URI HiveMQ,通過適當的連接完成正常工作,訂閱也給我結果。我使用了以下兩個庫:
編譯 'org.eclipse.paho:org.eclipse.paho.client.mqttv3:1.1.0' 編譯「org.eclipse.paho:org.eclipse.paho .android.service:1.0.2'
我嘗試了一些SO答案喜歡One,Two,Three,Four和Five但他們都不是爲我工作。
任何幫助將不勝感激。先謝謝你!
是的你是對的。我嘗試過ws://但是使用web socket客戶端,在這種情況下它拒絕了。 –