如何使装饰后的服务可注入？

// 定义一个服务接口
public interface Service {
    void execute();
}

// 实现服务接口的具体服务类
public class ConcreteService implements Service {
    @Override
    public void execute() {
        System.out.println("执行具体服务");
    }
}

// 定义装饰器抽象类
public abstract class ServiceDecorator implements Service {
    protected Service service;

    public ServiceDecorator(Service service) {
        this.service = service;
    }
}

// 实现具体装饰器类
public class DecoratorA extends ServiceDecorator {
    public DecoratorA(Service service) {
        super(service);
    }

    @Override
    public void execute() {
        System.out.println("装饰器A的功能扩展");
        service.execute();
    }
}

// 实现具体装饰器类
public class DecoratorB extends ServiceDecorator {
    public DecoratorB(Service service) {
        super(service);
    }

    @Override
    public void execute() {
        System.out.println("装饰器B的功能扩展");
        service.execute();
    }
}

// 使用装饰后的服务
public class Main {
    public static void main(String[] args) {
        // 创建具体服务对象
        Service concreteService = new ConcreteService();
        
        // 对具体服务对象进行装饰
        Service decoratedService = new DecoratorA(new DecoratorB(concreteService));
        
        // 执行装饰后的服务
        decoratedService.execute();
    }
}