Subscribe/Publish messages to/from SocketIO/nodejs server from Java application?

I made something similar recently for teaching (node.js server, java client in publish/subscribe).

Actually, you should consider Faye : http://faye.jcoglan.com/ You can attach a websocket and/or bayeux server in a node.js instance using faye.

You can then connect any client that implement one or both of these protocol.

I successfully used it in the past for a lab with students in which a server is node.js publishing information, and a java client subscribe to faye using the cometd library (http://cometd.org/).

Source code of :

• this server with faye but also traditional http server is located at : https://github.com/cgravier/WI-UCLab/blob/master/context-server-nodejs/simulateArduino.js
• the java client using Cometd : https://github.com/cgravier/WI-UCLab/tree/master/context-client-java (sorry it is a library hell, it is designed for student that I was explicitly told were not familiar with maven (or equivalent), and it is 3h lab... anyway.)

Although the document is in French, I guess the figure at page 4 in https://github.com/cgravier/WI-UCLab/blob/master/lab%20document/context-awareness.pdf is self explanable.

HTH

fafhrd

I have used this one android-websockets which includes both SocketIO and Pure Websockets communication, but did not find it so stable, it had issues connecting to the server but this one socket.io-java-client seems like alright but have not used it.