java – 如何在Spring中更改运行时的属性值

我需要在运行时更改应用程序中的属性.
例如,我有一个服务,它发送一个带有resset密码的电子邮件.请求有效期为12小时.但我想在运行时将此时间更改为24或更多.我需要为管理员提供此操作的机会.

我的属性文件有

hours.expired=12

我的服务

private int hoursExpiredPassword;

public void setHoursExpiredPassword(int hoursExpiredPassword) {
    this.hoursExpiredPassword = hoursExpiredPassword;
}

@Override
public ERequests checkRequest(String number,Date date) {
    PasswordResetRequest findedobject = passwordResetRequestDao.getobjectByElement(PasswordResetRequest.class,"requestId",number);
    if (findedobject == null){
        return ERequests.BAD_REQUEST;
    }else{
        long result = getDateDiff(findedobject.getRequestDate(),date,TimeUnit.HOURS);
        if(result >= hoursExpiredPassword){
            return ERequests.EXPIRED_REQUEST;
        }
    }
    return ERequests.CORRECT_REQUEST;
}

我的春季xml配置

<bean id="passwordResetRequestService" class="pl.lublin.example.services.servicesDAO.PasswordResetRequestService">
    <property name="passwordResetRequestDao" ref="passwordResetRequestDao"></property>
    <property name="hoursExpiredPassword" value="${hours.expired}"></property>
</bean>

我可以在运行时以某种方式更改此值吗？

@Service
public class PasswordResetRequestService {

@Value("${hours.expired:12}") 
private int hoursExpiredPassword;

@Autowired
private PasswordResetRequestDao passwordResetRequestDao;

public void setHoursExpiredPassword(int hoursExpiredPassword) {
    this.hoursExpiredPassword = hoursExpiredPassword;
}


@Override
public ERequests checkRequest(String number,TimeUnit.HOURS);
        if(result >= hoursExpiredPassword){
            return ERequests.EXPIRED_REQUEST;
        }
    }
    return ERequests.CORRECT_REQUEST;
   }

}

@Autowired
private pl.lublin.zeto.zetoRA.services.servicesDAO.PasswordResetRequestService passwordResetRequestService;