如题:Java mqtt 客户端库 org.eclipse.paho.mqttv5.client,如何设置‘No Local’、‘Retain as Published’、‘Retain Handling’订阅属性?
客户端库的 MqttClient 通过 MqttConnectionOptions 参数连接 mqtt broker,但 MqttConnectionOptions 中没看到有关‘No Local’、‘Retain as Published’、‘Retain Handling’订阅属性。请问应该如何做?