The above example is pretty self-explanatory. They can be defined as following in the body of the HTML page: Īs you can see, we mix a few JSF components and HTML on the page. The greeting example will consist of three elements, an input field for a name, a button to perform the action, and the result of the button click. The alias value can be freely chosen, the namespace is the value that is recognized by the server.
The alias h will be used to reference the components defined by Jakarta Faces. To show you the very basics of Jakarta Faces to connect the data on the screen to the Java beans and methods, let us start with a Hello World kind of application in JSF.Īs mentioned, we use xhtml files to define the content of the web applications, so in our src/main/webapp/greeting.xhtml page, we define the following namespace: Most people define the extension of the pages that can be used by the system in the web.xml file (although this is not strictly required as the xhtml extension is recognized by default since JSF 2.3) This way, the components can be integrated with other HTML content for the page. The components for the web pages can be defined in several different formats, but most of the time they are defined in xhtml pages. Since it is part of the Jakarta Web Profile, you do not need to add any additional libraries to your project, the web API dependency at provided scope is enough. Just as the other specifications we already discussed, Jakarta Faces requires little to no configuration before we can use it. In this blog, we mention a few features of Jakarta Faces 3.0 as it is one of the largest specifications of Jakarta EE 9. The web pages are created by defining the components that are required and the events that are triggered by the user, and the rendering happens in a separate phase that can be customised to your needs. It is a server-side framework that allows for rapid development of web applications, mainly administrative applications which are data entry and business logic heavy. With Jakarta Faces, you can build user interfaces for web applications, including UI components, state management, event handing, input validation, page navigation, and support for internationalization and accessibility.
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