public static void main(String[] args) {
    ResourceLoader resourceLoader = new DefaultResourceLoader();
    ReloadableResourceBundleMessageSource auto = new ReloadableResourceBundleMessageSource();
    String[] basenames = {"filename"};
    auto.setBasenames(basenames);
    auto.setResourceLoader(resourceLoader);
    auto.setCacheSeconds(5);
    auto.setUseCodeAsDefaultMessage(true);
    while(true) {
        System.out.println(auto.getMessage("key", null, Locale.CHINESE));
        try {
            Thread.sleep(5*1000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
    }
}
 

}

spring 定時刷新配置文件