重写i18n拦截器实现自定义获取国际化资源文件

最近做个功能根据Cookie中配置的语言切换国际化资源,由于默认的LocaleChangeInterceptor拦截器只支持获取参数中的语言类型,这种方式我就不满足啦,下面列举一下步骤
1.在spring的配置文件中配置

	
	
		
		
	

	

ps:关于SessionLocaleResolver可以查看SessionLocaleResolver
2.重写一个拦截器I18nInterceptor,集成i18n的拦截器LocaleChangeInterceptor,重写其中的preHandle方法

@Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws ServletException {
        String newLocale = "zh_CN";
        Cookie[] cookies = request.getCookies();
        if(cookies != null){
            for(Cookie cookie:cookies){
                if("lang".equals(cookie.getName())){
                    newLocale = cookie.getValue();
                    break;
                }
            }
        }
        if (newLocale != null) {
            if (checkHttpMethod(request.getMethod())) {
                LocaleResolver localeResolver = RequestContextUtils.getLocaleResolver(request);
                if (localeResolver == null) {
                    throw new IllegalStateException(
                            "No LocaleResolver found: not in a DispatcherServlet request?");
                }
                try {
                    localeResolver.setLocale(request, response, parseLocaleValue(newLocale));
                }
                catch (IllegalArgumentException ex) {
                    if (isIgnoreInvalidLocale()) {
                        logger.debug("Ignoring invalid locale value [" + newLocale + "]: " + ex.getMessage());
                    }
                    else {
                        throw ex;
                    }
                }
            }
        }
        // Proceed in any case.
        return true;
    }

根据cookie中存入的key为lang的属性获取对应的语言,如果为空则默认中文。

在jsp中使用方法就可以了
如果需要在form标签中引用:
例:



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