Overview

JSF is a server-side UI framework in which you build pages from reusable components and bind them to Java beans. It handles the request lifecycle, validation, conversion and navigation for you, which makes it a good fit for data-entry heavy business applications.

Combined with a component library such as PrimeFaces, you can build rich tables, forms, dialogs and charts with very little JavaScript.

Where it is used

• Internal business portals
• Admin dashboards
• Data-entry and reporting screens
• Jakarta EE web applications

A simple page and bean

<h:form>
    <h:inputText value="#{studentBean.name}" required="true"/>
    <h:commandButton value="Save" action="#{studentBean.save}"/>
    <h:messages/>
</h:form>

@Named
@RequestScoped
public class StudentBean {
    private String name;

    public String save() {
        // call a service to store the student
        return "success";
    }
    // getters and setters
}