Explore some live examples of JWt below.
The source code of these (and many more) examples is included in the JWt source distribution. You may also browse through the source code of each example using the source code viewer.
This example implements a simple chat client and server. Using server-initiated updates, you can easily push events from one user to other users. Server-initiated updates are implemented using Ajax long polling.
When deploying in a Servlet-3.0 container, you can enable its asynchronous processing and JWt will benefit from this to not tie up threads for each open connection. But you can also deploy the application on a Servlet-2.5 container, reverting to blocking threads. This may be convenient when a Servlet-3.0 container is not available, e.g. during development.
It also illustrates nice benefits of a class-based approach to web application development: you can easily instantiate the same widget class multiple times. The SimpleChatClient widget may be reused just as you reuse basic JWt widgets such as a push button.