Can not work internationalization in spring mvc with thymeleaf - spring-mvc

Question

I have started a project with Spring MVC with thymeleaf. I want to that it is internationalize. I had copied official spring tutorial. But When I click tr button , words aren't changed. I am pasting my codes. I assumed that getLabel function of ResourceManager service is getting label current language. But I am not sure. How can I proceed?
#Configuration
#EnableWebMvc
#ComponentScan(basePackages = {"com.yummynoodlebar.web.controller","com.yummynoodlebar.web.service","com.yummynoodlebar.web.domain"})
public class WebConfig extends WebMvcConfigurerAdapter {
#Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
registry.addResourceHandler("/resources/**").addResourceLocations("/resources/");
}
#Override
public void addInterceptors(InterceptorRegistry registry) {
LocaleChangeInterceptor localeChangeInterceptor = new LocaleChangeInterceptor();
localeChangeInterceptor.setParamName("lang");
registry.addInterceptor(localeChangeInterceptor);
}
#Bean
public LocaleResolver localeResolver() {
CookieLocaleResolver cookieLocaleResolver = new CookieLocaleResolver();
cookieLocaleResolver.setDefaultLocale(StringUtils.parseLocaleString("en"));
return cookieLocaleResolver;
}
#Bean
public ServletContextTemplateResolver templateResolver() {
ServletContextTemplateResolver resolver = new ServletContextTemplateResolver();
resolver.setPrefix("/WEB-INF/views/");
resolver.setSuffix(".html");
//NB, selecting HTML5 as the template mode.
resolver.setTemplateMode("HTML5");
resolver.setCharacterEncoding("UTF-8");
resolver.setCacheable(false);
return resolver;
}
#Bean
public SpringTemplateEngine templateEngine() {
SpringTemplateEngine engine = new SpringTemplateEngine();
engine.setTemplateResolver(templateResolver());
return engine;
}
#Bean
public ViewResolver viewResolver() {
ThymeleafViewResolver viewResolver = new ThymeleafViewResolver();
viewResolver.setTemplateEngine(templateEngine());
viewResolver.setOrder(1);
viewResolver.setViewNames(new String[]{"*"});
viewResolver.setCache(false);
return viewResolver;
}
#Bean(name = "labelSource")
public MessageSource messageSource() {
ReloadableResourceBundleMessageSource messageSource = new ReloadableResourceBundleMessageSource();
messageSource.setBasenames("classpath:i18n/labels");
// if true, the key of the message will be displayed if the key is not
// found, instead of throwing a NoSuchMessageException
messageSource.setUseCodeAsDefaultMessage(true);
messageSource.setDefaultEncoding("UTF-8");
// # -1 : never reload, 0 always reload
messageSource.setCacheSeconds(0);
return messageSource;
}
}
#Component
public class ResourceManager {
#Resource(name = "labelSource")
private MessageSource messageSource;
public String getLabel(String code) {
return messageSource.getMessage(code, null, Locale.getDefault());
}
}

Answer 1

I have solved my problem. I had changed getLabel function. New code is following
public String getLabel(String code) {
return messageSource.getMessage(code, null, LocaleContextHolder.getLocale());
}