springMVC國際化

@RequestMapping(value="${adminPath}/switchlanguage",method = RequestMethod.GET)
public String changeLanguage(HttpServletRequest request,HttpServletResponse response, @RequestParam String currentlang, Model model) {
   CookieLocaleResolver localeResolver = (CookieLocaleResolver) RequestContextUtils.getLocaleResolver(request);
   if ("zh_CN".equals(currentlang)) {
      localeResolver.setLocale(request, response, new Locale("en", "US"));
   } else{
      localeResolver.setLocale(request, response, new Locale("zh", "CN"));
   }
   return "/view/sysLogin";
}

<a style="color: #1E90FF"
                href="${pageContext.request.contextPath}/admin/switchlanguage?currentlang=${currentLocale}"><fmt:message
                    key="btn_switch_language" /></a>