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This article mainly explains "how to use the MQTT.fx client". The content in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn how to use the MQTT.fx client.

1 introduction

MQTT.fx is an Eclipse Paho-based MQTT client tool written in the Java language that supports subscribing to and publishing messages through Topic. The corresponding installation package can be downloaded from the official website for installation.

2 Settings 2.1 set Broker

The + sign in the lower left corner is used to add Broker. Fill in the window with the configuration of Broker: Host,Port, and sometimes Client ID, and user information: User,Password. Click OK to save.

2.2 set Publish

Select broker and click Connect to connect. Select Publish, fill in the topic,Qos type, payload information, and click the Publish button to publish.

The payload here supports a variety of different formats: plain text, Json,Base64, hexadecimal, Sparkplug, and the subscriber below also supports different decoding methods.

2.3Setting Subscribe

Select Broker and click Connect to connect. Click Subscribe, fill in topic, and click Subscribe to subscribe. The information on topic will be subscribed to at this point.

After receiving the message, there is an option of Payload decoded by in the lower right corner, and you can select different message decoders:

Plain Text Decoder plain text decoding

JSON Pretty Format Decoder Json format decoding

Base64 Decoder

Hex Format Decoder hexadecimal coding

Sparkplug Decoder

2.4 other

You can also view the running log of MQTT through Log.

Thank you for your reading, the above is the content of "how to use the MQTT.fx client", after the study of this article, I believe you have a deeper understanding of how to use the MQTT.fx client, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

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