Struts 2 (version 2.3.28) only accepts registered locales

问题

In Struts 2 version 2.3.28, the i18n interceptor only accepts the locales which are registered to jvm, the list which is returned by Locale.getAvailableLocales().

Well, although I can extend the list of available Java Locales, as mentioned How to extend the list of available Java Locales, is it any short way that set this interceptor to accept all strings as locale (for example fa_IR ) ?!

Just a note: Setting the default locale to fa_IR ( <constant name="struts.locale" value="fa_IR" /> ) works fine.

回答1:

No, you have to create your own interceptor that extends i18n and override this method

 protected Locale getLocaleFromParam(Object requestedLocale) {
        Locale locale = null;
        if (requestedLocale != null) {
            locale = (requestedLocale instanceof Locale) ?
                    (Locale) requestedLocale :
                    LocalizedTextUtil.localeFromString(requestedLocale.toString(), null);
            if (locale != null && LOG.isDebugEnabled()) {
                LOG.debug("applied request locale=#0", locale);
            }
        }

        if (locale == null) {
            locale = Locale.getDefault();
        }
        return locale;
    }

来源：https://stackoverflow.com/questions/36245849/struts-2-version-2-3-28-only-accepts-registered-locales