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Implement Internationalization and Localization in JSF

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Internationalization and Localization are important features for an web based application. Internationalization is implementing the features in your application to support multiple languages. Localization is creating text in a specific language that is presented through an internationalized application

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The following example program demonstrates very simple program for implementing this concepts. if you look into the faces-config.xml file,locale-config element is used for specifying the default locale and supported locale information. In this sample application we have provided default as English and supported as French.

Use resource-bundle element to specify the name of the properties file to be used. For example if you create a resource bundle name as Messages, then all the language letters will be suffixed with the file name.In our case French locale is named as “Messages_fr”.The default will be “en”, it is not required to specify explicitly.

<%@taglib prefix="f" uri="http://java.sun.com/jsf/core"%>
<%@taglib prefix="h" uri="http://java.sun.com/jsf/html"%>
<html>
    <body>
        <f:view>
            <h:form>
                <h:commandButton value="#{msg.cancel}" action="fail"/>
                <h:commandButton value="#{msg.submit}" action="success"/>
            </h:form>
        </f:view>
    </body>
</html>

faces-config.xml

<?xml version='1.0' encoding='UTF-8'?>
<faces-config version="1.2"
    xmlns="http://java.sun.com/xml/ns/javaee"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-facesconfig_1_2.xsd">
    <application>
        <locale-config>
            <default-locale>en</default-locale>
            <supported-locale>fr</supported-locale>
            <supported-locale>de</supported-locale>
        </locale-config>
        <resource-bundle>
            <base-name>javabeat.net.messages.Messages</base-name>
            <var>msg</var>
        </resource-bundle>
    </application>
</faces-config>

Messages.properties

cancel=Cancel
submit=Submit

Messages_fr.properties

cancel=annuler
submit=envoyer

About Krishna Srinivasan

He is Founder and Chief Editor of JavaBeat. He has more than 8+ years of experience on developing Web applications. He writes about Spring, DOJO, JSF, Hibernate and many other emerging technologies in this blog.