我有这样的电子邮件配置类。

@Configuration
public class EmailConfiguration {

    @Autowired
    private ConfigService configService;

    @Bean
    public JavaMailSender JavaMailSender() {
        JavaMailSenderImpl mailSender = new JavaMailSenderImpl();
        mailSender.setHost(configService.emailHost());
        mailSender.setPort(configService.emailPort());
        mailSender.setUsername(configService.emailAddress());
        mailSender.setPassword(configService.emailPassword());

        return mailSender;
    }
}

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如何使此bean在每次ConfigService刷新时更改运行时的值？我正在刷新ConfigService，但是bean的值没有改变。