奈学大数据架构师5期

ivate void registerFeignClient(BeanDefinitionRegistry registry, AnnotationMetadata annotationMetadata,            Map<String, Object> attributes) {        String className = annotationMetadata.getClassName();        Class clazz = ClassUtils.resolveClassName(className, null);        FeignClientFactoryBean factoryBean = new FeignClientFactoryBean();        factoryBean.setType(clazz);        //注册一个回调来生成类型为clazz的bean        //往beanDefinition里放入一个Supplier的实例，Spring会优先通过Su