Web apps written entirely in Java

Create a web project

Any Maven or Eclipse Dynamic Web Project targeting Java 21 and Jakarta Servlet 6 (Tomcat 10/11).

Add the FoxyUI JAR

Copy foxyui-4.0.jar into WEB-INF/lib/. It is the only dependency — nothing to install on the client side.

Write a page in Java

public class HelloPage extends FoxyPage {
    private final TextField name = new TextField();
    private final Label greeting = new Label();
    private final Button hello = new Button("Say hello");

    @Override
    public void init() {
        hello.onClick(e -> greeting.setText("Hello, " + name.getValue() + "!"));
        add(new Card().add(name, hello, greeting));
    }
}

Register the route and deploy

FoxyConfig.setProductionMode(true);
FoxyAppRegistry.registerPage("/hello", "hello", HelloPage::new);

Map FoxyServlet in web.xml, build the WAR (mvn package or Eclipse Export → WAR) and deploy it to Tomcat.