MQTT of Res interfaces news release

A common method messages MQTT (V2 version used here) Released:

 

1, connected via MQTT MQTT server client to establish a long connection, send messages through an interface

The most common clients:

<dependency>
    <groupId>org.eclipse.paho</groupId>
    <artifactId>org.eclipse.paho.client.mqttv3</artifactId>
    <version>1.1.0</version>
</dependency>

Example publishing interface (connection process is omitted ...)

 // announced 
the try { 
MqttMessage the Message = new new MqttMessage (); 
message.setQos ( 1);   // ensure messages reach a 
message.setRetained ( to true ); 
message.setPayload ( "I like to do the test, gnaw a pinch" .getBytes ()); 
client.publish (publishTopic, Message); 
} the catch (MqttException E) { 
    System.out.println ( "publish Fail" ); 
    e.printStackTrace (); 
}

 

2, Rest interfaces provided by MQTT news release

MQTT official website: https://docs.emqx.io/broker/v2/cn/rest.html?highlight=post

 

 

postMan simulation

basic auth authentication

 

Release of body