DynamicEmbededFieldNameValidatorConfig.java

@Configuration
public class Config extends WebMvcConfigurerAdapter {
    @Bean
    public LocalValidatorFactoryBean validator() {
        LocalValidatorFactoryBean localValidatorFactoryBean = new LocalValidatorFactoryBean();
        TermTranslateMessageInterpolator reTransableMessageInterpolator
                = new TermTranslateMessageInterpolator(messageSource());
        localValidatorFactoryBean.setMessageInterpolator(reTransableMessageInterpolator);
        return localValidatorFactoryBean;
    }

    @Slf4j
    private static class TermTranslateMessageInterpolator extends ResourceBundleMessageInterpolator {
        private static final Pattern TERM_TRANSLATE_PATTERN = Pattern.compile("\\{([^\\}]*?)\\}");
        private final MessageSource messageSource;
        private final Map<TermMessageCacheKey, String> termInterpolateCache = new ConcurrentHashMap<>();

        TermTranslateMessageInterpolatorr(MessageSource messageSource) {
            super(new MessageSourceResourceBundleLocator(messageSource));
            this.messageSource = messageSource;
        }

        @Override
        public String interpolate(Context context, Locale locale, String term) {
            String result = super.interpolate(context, locale, term);
            String interpolated = termInterpolateCache.get(new TermMessageCacheKey(result, locale));
            if (interpolated != null) {
                return interpolated;
            }
            interpolated = result;
            Matcher matcher = TERM_TRANSLATE_PATTERN.matcher(interpolated);
            while(matcher.find()) {
                String key = matcher.group(1);
                String i18n = messageSource.getMessage(key, null, locale);
                interpolated = StringUtils.replaceOnce(interpolated, "{" + key + "}", i18n);
            }
            termInterpolateCache.put(new TermMessageCacheKey(result, locale), interpolated);
            return interpolated;
        }

        @Value
        static class TermMessageCacheKey {
            private String result;
            private Locale locale;
        }
    }

    @Bean
    public MessageSource messageSource() {
        ReloadableResourceBundleMessageSource messageSource = new ReloadableResourceBundleMessageSource();
        messageSource.setBasename("classpath:messages/messages");
        messageSource.setDefaultEncoding("UTF-8");
        return messageSource;
    }

    @Override
    public Validator getValidator() {
        return validator();
    }
}