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copied!<p>Lets say you have following two messages files</p> <pre><code> messages.properties messages_de.properties </code></pre> <p><strong>Setting the Application Locale</strong> <br>There are three ways of setting the Application Locale and I think <strong>you need the first one</strong> here.</p> <p><strong>1-You can let the browser choose the locale.</strong> </p> <p>Set the default and supported locales in <code>WEB-INF/faces-config.xml:</code></p> <pre><code><faces-config> <application> <locale-config> <default-locale>en</default-locale> <supported-locale>de</supported-locale> </locale-config> </application> </faces-config> </code></pre> <p>When a browser connects to your application, it usually includes an Accept-Language value in the HTTP header </p> <p><strong>2-You can set the locale programatically.</strong> </p> <p>Call the setLocale method of the UIViewRoot object:</p> <pre><code>UIViewRoot viewRoot = FacesContext.getCurrentInstance().getViewRoot(); viewRoot.setLocale(new Locale("de")); </code></pre> <p><strong>3-You can set the locale for an individual page</strong> <br>By using the <code>f:view</code> element with a locale attribute—for example:</p> <pre><code><f:view locale="de"> </code></pre> <p>The locale can be dynamically set:</p> <pre><code><f:view locale="#{user.locale}"/> </code></pre> <p><br><strong>Declaring message bundles</strong><br> Now that the Locale is set you can use one of the following two ways to declare message bundles</p> <p><strong>1-Via faces-config</strong> The simplest way is to supply a file named faces-config.xml in the WEB-INF directory of your application, with the following contents:</p> <pre><code><?xml version="1.0"?> <faces-config 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_2_0.xsd" version="2.0"> <application> <resource-bundle> <base-name>com.corejsf.messages</base-name> <var>msgs</var> </resource-bundle> </application> </faces-config> </code></pre> <p><strong>2-At each JSF page that needs access it.</strong> Instead of using a global resource bundle declaration, you can add the f:loadBundle element to each JSF page that needs access to the bundle, like this:</p> <pre><code><f:loadBundle basename="com.corejsf.messages" var="msgs"/> </code></pre> <p>In either case, the messages in the bundle are accessible through a map variable with the name msgs.</p> <p><strong>Showing appropriate label on button</strong> Now lets say default properties file i.e english has property</p> <pre><code>next=Next </code></pre> <p>and German has equivallent i.e</p> <pre><code>next=Weiter </code></pre> <p>And you have set the locale and declared mesg bundle you can access it to put the label on a command button like</p> <pre><code><h:commandButton value="#{msgs.next}"/> </code></pre> <p><em>Above Answer is extracted and modified from <strong><a href="http://rads.stackoverflow.com/amzn/click/0137012896">Hortsmen Core Java Server Faces book</a></strong>.</em> </p>

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