This project contains a simple Socket.IO server written in Java using the netty-socketio server as server and the official JS Socket.IO client.
Build the server through Maven and run the com.kevinread.samples.socketio.Main Main class. This will open a simple Socket.IO server under http://localhost:8081/
There are two clients: one for Node.JS and one running in the browser. Go to the front-end folder and run either npm run browsertest (and then open http://localhost:3000/ in the browser) or npm run nodetest.