This
is continuation to my previous post. In my previous post, I explained how the
spring mvc application supports internationalization using browser language.
One problem with that approach is, it is browser centric. It displays the
information based on browser language.
But
there is a case, where my browser preferred language is English, but i want my webpage to be displayed in German. In this post, I am going to show, how can
you achieve that.
It
is very simple, just add below lines in the dispatcher servlet of my previous
application.
<bean
id="localeResolver"
class="org.springframework.web.servlet.i18n.CookieLocaleResolver"
/>
<mvc:interceptors>
<bean
class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor">
<property
name="paramName" value="siteLanguage" />
</bean>
</mvc:interceptors>
org.springframework.web.servlet.i18n.LocaleChangeInterceptor
Interceptor
that allows for changing the current locale on every request, via a
configurable request parameter (default parameter name: "locale").
org.springframework.web.servlet.i18n.CookieLocaleResolver
It
uses a cookie sent back to the user in case of a custom setting, with a
fallback to the specified default locale or the request's accept-header locale.
Find
the below working application.
HelloWorldController.java
package com.sample.myApp.controllers; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; @Controller public class HelloWorldController { @RequestMapping("/welcome") public String getHelloMessage() { return "welcome"; } }
Create
welcome.jsp file under WEB-INF/jsp folder.
welcome.jsp
<%@taglib uri="http://www.springframework.org/tags" prefix="spring"%> <%@ page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%> <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Hello World Spring Web MVC</title> </head> <body> <h1> <spring:message code="welcomeMessage" /> </h1> </body> </html>
Create
appMessages_en.properties, appMessages_de.properties files under
WEB-INF/propertyFiles.
appMessages_en.properties
welcomeMessage=Good
Morning......
appMessages_de.properties
welcomeMessage=Guten
Morgen......
Create
web.xml, HelloWorld-servlet.xml files under WEB-INF folder.
web.xml
<web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"> <display-name>Spring MVC Hello WorldApplication</display-name> <servlet> <servlet-name>HelloWorld</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>HelloWorld</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> </web-app>
HelloWorld-servlet.xml
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd"> <mvc:annotation-driven /> <context:component-scan base-package="com.sample.myApp" /> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/jsp/" /> <property name="suffix" value=".jsp" /> </bean> <bean id="messageSource" class="org.springframework.context.support.ReloadableResourceBundleMessageSource"> <property name="basename" value="WEB-INF/propertyFiles/appMessages" /> </bean> <bean id="localeResolver" class="org.springframework.web.servlet.i18n.CookieLocaleResolver" /> <mvc:interceptors> <bean class="org.springframework.web.servlet.i18n.LocaleChangeInterceptor"> <property name="paramName" value="siteLanguage" /> </bean> </mvc:interceptors> </beans>
Create
index.jsp file under webapp folder.
index.jsp
<%@taglib prefix="form" uri="http://www.springframework.org/tags/form"%> <html> <head> <title>Welcome Page</title> </head> <body> <h2>Click on below button to get welcome page</h2> <form method="post" action="/springdemo/welcome?siteLanguage=en" id="form1"> <input type="submit" value="getEnglishMessage" style="font-size: 18px;" /> </form> <form method="post" action="/springdemo/welcome?siteLanguage=de" id="form2"> <input type="submit" value="getGermanMessage" style="font-size: 18px;" /> </form> </body> </html>
Total
project structure looks like below.
Run
the application on server. You can able to see below screen.
If
you click on ‘getEnglishMessage’ button, you can able to see below message.
If
you click on ‘getGermanMessage’, you can able to see below message.
If
you click on ‘getGermanMessage’, you can able to see below message.
