example-mqtt

Separate Java examples of MQTT Publisher & Subscriber.

(Examples I encountered when learning to work with MQTT combined both the sender and the receiver logic. Here, I’ve separated them out.)

Requirements

• JDK 8
• Maven
• An MQTT Broker (As a suggestion, check out http://www.hivemq.com as a decent option for the demo here. )

Build & Deployment Instructions

1. Clone the repo and build the projects.
2. Install your MQTT Broker.
3. Run the MQTT Subscriber in its own console/shell.
4. Run the MQTT Publisher in its own console/shell.

Note: You’ll need to start the publisher quickly as the subscriber will only wait to listen for events for 15 secs by default.

Audit/logging output is written to stdout so you should see some send/receive messages in both consoles.

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