求教大神，关于获取Context

@Test

//这个是我调用Test父类获取context

public void textMoocBeanName() {

//System.out.println("textMoocBeanName : " + super.getBean("moocBeanName").hashCode());

MoocBeanName bean = super.getBean("moocBeanName");

}

//这个是我通过接口调用获取context

@Override

public void setApplicationContext(ApplicationContext applicationContext)

throws BeansException {

System.out.println("setApplicationContext : " + applicationContext.getBean(this.beanName).hashCode());

MoocBeanName bean = (MoocBeanName) applicationContext.getBean(this.beanName);

bean.aa();

}

//我在以上两种方式获取Context的时候有一个问题，就是为什么在测试类获取的Context不需要强制类型转换，而调用接口的方法则必须要强制类型转换才可以调用方法呢