How to organize the transfer of data from the client (JS) to the JAVA server?

Question

JavaScript

The client through the browser interacts with the web form.
When the button is clicked, a client-side script (JS) processes the data and sends it to the server.
Java server.
I have never used a server of this kind to interact with the browser.
What is the best way to organize data transfer?

Answer 1

To get started, learn what HTTP is and general architecture in the web. Then learn Servlets in Java.

Answer 2

Via RestFul service / Via WebSockets