What's the difference between IMqttActionListener and IMqttMessageListener?

This article mainly introduces "what is the difference between IMqttActionListener and IMqttMessageListener". In daily operation, I believe many people have doubts about the difference between IMqttActionListener and IMqttMessageListener. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful to answer the questions of "what is the difference between IMqttActionListener and IMqttMessageListener?" Next, please follow the editor to study!

1: subscribe only when subscribing, and no callback function is returned. All callbacks are handled by MqttDefaulCallback.

Public class MqttDefaulCallback implements MqttCallbackExtendedprivate Map rrpcListenerMap;private Map rrpcPatternListenerMap

MqttCallbackExtended is a bit like Guankuan.

2: the difference between IMqttActionListener and IMqttMessageListener

The former simply indicates whether the subscription is successful.

The latter indicates what to do when the subscribed topic arrives with a new Message.

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