spring的配置器模式

public interface MyService {
    void doSomething();
}

@Component("serviceOne")
public class ServiceOne implements MyService {
    public void doSomething() {
        System.out.println("Doing something in ServiceOne");
    }
}

@Component("serviceTwo")
public class ServiceTwo implements MyService {
    public void doSomething() {
        System.out.println("Doing something in ServiceTwo");
    }
}

@Component("serviceThree")
public class ServiceThree implements MyService {
    public void doSomething() {
        System.out.println("Doing something in ServiceThree");
    }
}

@Component
public class ServiceUtil {

    private Map<String, MyService> serviceMap;

    @Autowired
    public ServiceUtil(Map<String, MyService> serviceMap) {
        this.serviceMap = serviceMap;
    }

    public void useServices() {
        serviceMap.values().forEach(MyService::doSomething);
    }
}