Spring boot+beetl+i18n国际化处理的方法

 /**
  * 设置拦截器
  */
 @Override
 public void addInterceptors(InterceptorRegistry registry) {
  registry.addInterceptor(localeChangeInterceptor());
 }
 
 /**
  * 国际化切换拦截器
  * 
  * @return 国际化切换拦截器
  */
 @Bean
 public LocaleChangeInterceptor localeChangeInterceptor() {
  LocaleChangeInterceptor interceptor = new LocaleChangeInterceptor();
  interceptor.setParamName("lang");
  return interceptor;
 }

 /**
  * 国际化处理器
  * 
  * @return 国际化处理器
  */
 @Bean
 public LocaleResolver localeResolver() {
  SessionLocaleResolver slr = new SessionLocaleResolver();
  //设置默认区域,
  slr.setDefaultLocale(Locale.CHINA);
  return slr;
 }

...
 @Autowired
 private WebApplicationContext wac;

 @Bean
 public BeetlTemplateCustomize beetlTemplateCustomize() {
  return new BeetlTemplateCustomize() {
   public void customize(GroupTemplate groupTemplate) {
    // 注册全局共享变量
    Map<String, Object> sharedVars = new HashMap<String, Object>();
    groupTemplate.setSharedVars(sharedVars);

    // 注册国家化函数
    groupTemplate.registerFunction("i18n", new I18nFunction(wac));
   }
  };
 }

public class I18nFunction implements Function {

 private WebApplicationContext wac;

 public I18nFunction(WebApplicationContext wac) {
  this.wac = wac;
 }

 @Override
 public Object call(Object[] obj, Context context) {
  HttpServletRequest request = (HttpServletRequest) context.getGlobal(WebVariable.REQUEST);
  RequestContext requestContext = new RequestContext(request);
  String message = requestContext.getMessage((String) obj[0]);
  return message;
 }

}