Struts 2(2.3.28 版)只接受注册的语言环境

问题描述

在 Struts 2 版本 2.3.28 中，i18n 拦截器只接受注册到 jvm 的语言环境，该列表由 Locale.getAvailableLocales() 返回.

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().

好吧，虽然我可以扩展可用 Java 语言环境的列表，如前所述 如何扩展可用 Java 语言环境的列表，是否有任何捷径可以将此拦截器设置为接受所有字符串作为语言环境(例如 fa_IR )?！

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 ) ?!

请注意:将默认语言环境设置为 fa_IR ( <constant name="struts.locale" value="fa_IR"/> ) 可以正常工作.

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

推荐答案

不行，你必须创建自己的拦截器来扩展 i18n 并覆盖这个方法

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;
    }

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