The Java EE 5 Tutorial

A Simple JSP Page Example

The web page in Figure 5–1 is a form that allows you to select a locale and displays the date in a manner appropriate to the locale.

Figure 5–1 Localized Date Form

Screen capture of localized date form. Locale drop-down
shows Lithuanian. Get Date button displays the date, "Antradienis, 2004, Kovo

The source code for this example is in the tut-install/javaeetutorial5/examples/web/date/ directory. The JSP page, index.jsp, appears below; it is a typical mixture of static HTML markup and JSP elements. If you have developed web pages, you are probably familiar with the HTML document structure statements (<head>, <body>, and so on) and the HTML statements that create a form (<form>) and a menu (<select>).

The lines in bold in the example code contain the following types of JSP constructs:

Here is the JSP page:

<%@ page contentType="text/html; charset=UTF-8" %>
<%@ taglib uri="
         prefix="c" %>
<%@ taglib uri="/functions" prefix="f" %>
<head><title>Localized Dates</title></head>
<body bgcolor="white">
<jsp:useBean id="locales" scope="application"

<form name="localeForm" action="index.jsp" method="post">
<c:set var="selectedLocaleString" value="${param.locale}" />
<c:set var="selectedFlag"
     value="${!empty selectedLocaleString}" />
<select name=locale>
<c:forEach var="localeString" items="${locales.localeNames}" >
    <c:when test="${selectedFlag}">
                 test="${f:equals(selectedLocaleString, localeString)}" >
                <option selected>${localeString}</option>
<input type="submit" name="Submit" value="Get Date">

<c:if test="${selectedFlag}" >
    <jsp:setProperty name="locales"
        value="${selectedLocaleString}" />
    <jsp:useBean id="date" class="mypkg.MyDate"/>
    <jsp:setProperty name="date" property="locale"
    <b>Date: </b>${}</c:if>

    To deploy the date application with NetBeans IDE, follow these steps:

  1. Start the Application Server.

  2. In NetBeans IDE, select File->Open Project.

  3. In the Open Project dialog, navigate to:

  4. Select the date folder.

  5. Select the Open as Main Project check box.

  6. Click Open Project.

  7. In the Projects tab, right-click the date project, and select Undeploy and Deploy.

    To deploy the date application with the Ant tool, follow these steps:

  1. In a terminal window, go to tut-install/javaeetutorial5/examples/web/date/.

  2. Type ant. This command will spawn any necessary compilations, copy files to the tut-install/javaeetutorial5/examples/web/date/build/ directory, and create a WAR file.

  3. Start the Application Server.

  4. Type ant deploy.

    To run the example, do the following:

  1. Set the character encoding in your browser to UTF-8.

  2. Open your browser to http://localhost:8080/date.

  3. You will see a combo box whose entries are locales. Select a locale and click Get Date. You will see the date expressed in a manner appropriate for that locale.

Some of the characters might not display properly if you don’t have the appropriate language files installed on your machine. Consult the user guide or online help for your operating system to determine how you can install these language files.