注解注入的bean和从上下文取出的bean不是同一个？

Question

有以下代码，最后比较注入的dao和ApplicationContext
上下文取出的dao，不是同一个。是我哪里有错误吗?
public class SpringApplicationContext implements ApplicationContextAware {

private static ApplicationContext applicationContext;

@Override
public void setApplicationContext(ApplicationContext context)
        throws BeansException {

    applicationContext = context;
}

public static Object getBean(String name) {
    return applicationContext.getBean(name);
}

public static ApplicationContext getApplicationContext(){
    return applicationContext;
}

}

 @Repository(value="helloDao")
public class HelloDao {

    public void save(){
        System.out.println("HelloDao.save");
    }

}

@Service("helloService")
public class HelloService {
@Resource(name = "helloDao")
private HelloDao dao;

public void say() {

    System.out.println(SpringApplicationContext.getBean("helloDao")==dao);//false

    System.out.println("say hello");
}

}

Answer 1

照这么看来应该是不一样的。但是，可以肯定的是所有用注解注入的同一类的属性都是同一个对象。