The Java EE 5 Tutorial (PDF) - Oracle Software Downloads

A Simple JavaServer Faces Application
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■ Application architect, who configures the application, including defining the navigation
rules, configuring custom objects, and creating deployment descriptors.
This application is quite simple, and so it does not include any custom components. See chapter
“Writing a Method to Handle a Value-Change Event” on page 405 to learn about the
responsibilities of a component writer.
Steps in the Development Process
Developing a simple JavaServer Faces application usually requires these tasks:
■ Mapping the FacesServlet instance.
■ Creating the pages using the UI component and core tags.
■ Defining page navigation in the application configuration resource file.
■ Developing the backing beans.
■ Adding managed bean declarations to the application configuration resource file.
The example used in this section is the guessNumber application, located in the
tut-install/javaeetutorial5/examples/web/ directory. It asks you to guess a number between
0 and 10, inclusive. The second page tells you whether you guessed correctly. The example also
checks the validity of your input. The system log prints Duke’s number. Figure 10–2 shows what
the first page looks like.
FIGURE 10–2 The greeting.jsp Page of the guessNumber Application
The source for the guessNumber application is located in the
tut-install/javaeetutorial5/examples/web/guessNumber/ directory created when you unzip
the tutorial bundle (see Chapter 2, “Using the Tutorial Examples”).
To build, package, deploy, and run this example using NetBeans IDE, follow these steps:
1. In NetBeans IDE, select File→Open Project.
2. In the Open Project dialog, navigate to:
The Java EE 5Tutorial • June 2010