创建一个获取当前Spring容器的工具类

@Component
public class ApplicationContextUtil implements ApplicationContextAware {
    private static ApplicationContext context;

    @Override
    public void setApplicationContext(ApplicationContext context) throws BeansException{
        this.context = context;
    }

    public static  T getBean(Class clz){
        return context.getBean(clz);
    }

}

通过这个类可以获取某个bean

T t = ApplicationContextUtil.getBean(T.class);

附：

了解下 BeanFactory 和 ApplicationContext

后者实现了前者