mercyblitz commented on a change in pull request #1550: [Dubbo-Fix EnableDubbo 
annotation bug]
URL: https://github.com/apache/incubator-dubbo/pull/1550#discussion_r179935398
 
 

 ##########
 File path: 
dubbo-config/dubbo-config-spring/src/main/java/com/alibaba/dubbo/config/spring/beans/factory/annotation/ServiceAnnotationBeanPostProcessor.java
 ##########
 @@ -98,13 +110,88 @@ public void 
postProcessBeanDefinitionRegistry(BeanDefinitionRegistry registry) t
         Set<String> resolvedPackagesToScan = 
resolvePackagesToScan(packagesToScan);
 
         if (!CollectionUtils.isEmpty(resolvedPackagesToScan)) {
+
+            // register @Service
             registerServiceBeans(resolvedPackagesToScan, registry);
+
+            // register @Component
+            registerComponentBeans(resolvedPackagesToScan, registry);
         } else {
             if (logger.isWarnEnabled()) {
                 logger.warn("packagesToScan is empty , ServiceBean registry 
will be ignored!");
             }
         }
 
+        /**
+         * The solution to consumers early references to unexposed services.
+         */
+        deferConfiguationBeans();
+
+    }
+
+    /**
+     * Registers Beans whose classes was annotated {@link Component}
+     *
+     * @param packagesToScan The base packages to scan
+     * @param registry       {@link BeanDefinitionRegistry}
+     */
+    private void registerComponentBeans(Set<String> packagesToScan, 
BeanDefinitionRegistry registry) {
+
+        DubboClassPathBeanDefinitionScanner scanner =
+                new DubboClassPathBeanDefinitionScanner(registry, environment, 
resourceLoader);
+
+        BeanNameGenerator beanNameGenerator = 
resolveBeanNameGenerator(registry);
+
+        scanner.setBeanNameGenerator(beanNameGenerator);
+
+        scanner.addExcludeFilter(new AnnotationTypeFilter(Controller.class, 
false));
 
 Review comment:
   It should not enumerate those Annotations,  for instance `@Configuration` 
will be scanned here

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