我按官网格式配的设置,怎么就一直出MQTTException。
后面的用户名和密码也设置好了
2019-07-17 15:01:21,271 INFO --- BrokerConnectorController : onConnect
2019-07-17 15:01:21,272 INFO --- ScriptsController : Clear console.
2019-07-17 15:01:21,276 INFO --- MqttFX ClientModel : MqttClient with ID 5CD6367ZYS|securemode=3,signmethod=hmacsha1,timestamp=10| assigned.
2019-07-17 15:01:21,294 ERROR --- MqttFX ClientModel : Error when connecting
org.eclipse.paho.client.mqttv3.MqttException: MqttException
at org.eclipse.paho.client.mqttv3.internal.ExceptionHelper.createMqttException(ExceptionHelper.java:38) ~[org.eclipse.paho.client.mqttv3-1.2.0.jar:?]
at org.eclipse.paho.client.mqttv3.internal.ClientComms$ConnectBG.run(ClientComms.java:715) ~[org.eclipse.paho.client.mqttv3-1.2.0.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) ~[?:?]
at java.util.concurrent.FutureTask.run(Unknown Source) ~[?:?]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(Unknown Source) ~[?:?]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source) ~[?:?]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:?]
at java.lang.Thread.run(Unknown Source) [?:?]
Caused by: java.lang.IllegalArgumentException: hostname can't be null
at java.net.InetSocketAddress.checkHost(Unknown Source) ~[?:?]
at java.net.InetSocketAddress.<init>(Unknown Source) ~[?:?]
at org.eclipse.paho.client.mqttv3.internal.TCPNetworkModule.start(TCPNetworkModule.java:76) ~[org.eclipse.paho.client.mqttv3-1.2.0.jar:?]
at org.eclipse.paho.client.mqttv3.internal.ClientComms$ConnectBG.run(ClientComms.java:701) ~[org.eclipse.paho.client.mqttv3-1.2.0.jar:?]
... 7 more
2019-07-17 15:01:21,295 ERROR --- MqttFX ClientModel : Please verify your Settings (e.g. Broker Address, Broker Port & Client ID) and the user credentials!
org.eclipse.paho.client.mqttv3.MqttException: MqttException
at org.eclipse.paho.client.mqttv3.internal.ExceptionHelper.createMqttException(ExceptionHelper.java:38) ~[org.eclipse.paho.client.mqttv3-1.2.0.jar:?]
at org.eclipse.paho.client.mqttv3.internal.ClientComms$ConnectBG.run(ClientComms.java:715) ~[org.eclipse.paho.client.mqttv3-1.2.0.jar:?]
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) ~[?:?]
at java.util.concurrent.FutureTask.run(Unknown Source) ~[?:?]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(Unknown Source) ~[?:?]
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source) ~[?:?]
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [?:?]
at java.lang.Thread.run(Unknown Source) [?:?]
Caused by: java.lang.IllegalArgumentException: hostname can't be null
at java.net.InetSocketAddress.checkHost(Unknown Source) ~[?:?]
at java.net.InetSocketAddress.<init>(Unknown Source) ~[?:?]
at org.eclipse.paho.client.mqttv3.internal.TCPNetworkModule.start(TCPNetworkModule.java:76) ~[org.eclipse.paho.client.mqttv3-1.2.0.jar:?]
at org.eclipse.paho.client.mqttv3.internal.ClientComms$ConnectBG.run(ClientComms.java:701) ~[org.eclipse.paho.client.mqttv3-1.2.0.jar:?]
... 7 more
2019-07-17 15:01:21,301 INFO --- ScriptsController : Clear console.
2019-07-17 15:01:21,302 ERROR --- BrokerConnectService : MqttException
这是连接后的log,萌新看不懂,求大佬解释