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Vaadin V8 (LTS) - Simple WebApp in Java

This demo will show how to start with a simple Vaadin V8 webapp, based on pure Java API running on TomEE (webprofile)

The Vaadin Framework is OpenSource and available at Github

Build this example

To build this example, just run mvn clean install tomee:run You will find the app running under http://localhost:8080/

Implementation

This implementation is using the Vaadin 8 API.

public class HelloVaadin {

    public static class MyUI extends UI {
        @Override
        protected void init(VaadinRequest request) {

            //create the components you want to use
            // and set the main component with setContent(..)
            final Layout layout = new VerticalLayout();
            layout
                .addComponent(new Button("click me",
                                         event -> layout.addComponents(new Label("clicked again"))
                ));

            //set the main Component
            setContent(layout);
        }

        @WebServlet("/*")
        @VaadinServletConfiguration(productionMode = false, ui = MyUI.class)
        public static class MyProjectServlet extends VaadinServlet { }
    }
}

The documentation of the Vaadin Framework is available here

Support Information’s

Vaadin Framework 8 is the latest version based on GWT. V8 itself is a LTS version.

The new Vaadin Platform is based on WebComponents. As of Vaadin 10, Vaadin is moving to a release train model with four major releases every year. This allows them to ship new features faster to developers. Vaadin is continuing their commitment to long-term stability with long-term support (LTS) releases. The LTS releases will come out approximately every two years and offer 5 years of support.

APIs Used