/**
 * 从容器中获取到bean对象
 */
@Component
public class SpringContainerUtils implements ApplicationContextAware {

    private static ApplicationContext applicationContext;

    @Override
    public void setApplicationContext(ApplicationContext applicationContext1) throws BeansException {
            applicationContext=applicationContext1;
    }

    public static <T> T getBean(Class<T> clazz){
        return applicationContext.getBean(clazz);
    }
}

这个工具类的底层原理其实就是依托了springIOC的代码

实际使用场景举例