Polish : spring-cloud-incubator/spring-cloud-alibaba#409 : Register the Dubbo REST services as Spring Cloud services in non-web environment

spring-cloud-alibaba-dubbo/pom.xml

@@ -91,7 +91,6 @@
             <optional>true</optional>
         </dependency>
 
-
         <!-- Eureka Service Discovery -->
         <dependency>
             <groupId>org.springframework.cloud</groupId>
@@ -151,8 +150,7 @@
         <!-- Spring Cloud Open Feign -->
         <dependency>
             <groupId>org.springframework.cloud</groupId>
-            <artifactId>spring-cloud-starter-openfeign</artifactId>
+            <artifactId>spring-cloud-openfeign-core</artifactId>
-            <optional>true</optional>
         </dependency>
 
         <!-- Dubbo -->

spring-cloud-alibaba-dubbo/src/main/java/org/springframework/cloud/alibaba/dubbo/autoconfigure/DubboMetadataEventHandlingAutoConfiguration.java

@@ -16,6 +16,7 @@
  */
 package org.springframework.cloud.alibaba.dubbo.autoconfigure;
 
+import org.apache.dubbo.common.URL;
 import org.apache.dubbo.config.ApplicationConfig;
 import org.apache.dubbo.config.ProtocolConfig;
 import org.apache.dubbo.config.ServiceConfig;
@@ -26,17 +27,29 @@ import org.slf4j.LoggerFactory;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Qualifier;
 import org.springframework.beans.factory.annotation.Value;
+import org.springframework.boot.ApplicationRunner;
 import org.springframework.boot.autoconfigure.AutoConfigureAfter;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnNotWebApplication;
 import org.springframework.boot.context.event.ApplicationFailedEvent;
 import org.springframework.boot.context.event.ApplicationReadyEvent;
 import org.springframework.cloud.alibaba.dubbo.metadata.resolver.MetadataResolver;
+import org.springframework.cloud.alibaba.dubbo.registry.RegistrationFactory;
 import org.springframework.cloud.alibaba.dubbo.service.DubboMetadataConfigService;
 import org.springframework.cloud.alibaba.dubbo.service.PublishingDubboMetadataConfigService;
+import org.springframework.cloud.client.DefaultServiceInstance;
+import org.springframework.cloud.client.ServiceInstance;
+import org.springframework.cloud.client.serviceregistry.Registration;
+import org.springframework.cloud.client.serviceregistry.ServiceRegistry;
+import org.springframework.context.ConfigurableApplicationContext;
+import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 import org.springframework.context.event.ContextClosedEvent;
 import org.springframework.context.event.EventListener;
 import org.springframework.util.StringUtils;
 
+import java.util.HashMap;
+import java.util.List;
+
 import static org.springframework.cloud.alibaba.dubbo.autoconfigure.DubboMetadataAutoConfiguration.METADATA_PROTOCOL_BEAN_NAME;
 
 /**
@@ -63,6 +76,9 @@ public class DubboMetadataEventHandlingAutoConfiguration {
     @Qualifier(METADATA_PROTOCOL_BEAN_NAME)
     private ProtocolConfig metadataProtocolConfig;
 
+    @Autowired
+    private ConfigurableApplicationContext context;
+
     @Value("${spring.application.name:application}")
     private String currentApplicationName;
 
@@ -71,10 +87,44 @@ public class DubboMetadataEventHandlingAutoConfiguration {
      */
     private ServiceConfig<DubboMetadataConfigService> serviceConfig;
 
+    private ServiceInstance restServiceInstance;
+
     @EventListener(ServiceBeanExportedEvent.class)
-    public void recordRestMetadata(ServiceBeanExportedEvent event) {
+    public void onServiceBeanExported(ServiceBeanExportedEvent event) {
         ServiceBean serviceBean = event.getServiceBean();
-        dubboMetadataConfigService.publishServiceRestMetadata(metadataResolver.resolveServiceRestMetadata(serviceBean));
+        publishServiceRestMetadata(serviceBean);
+        setRestServiceInstance(serviceBean);
+    }
+
+    private void setRestServiceInstance(ServiceBean serviceBean) {
+        List<URL> urls = serviceBean.getExportedUrls();
+        urls.stream()
+                .filter(url -> "rest".equalsIgnoreCase(url.getProtocol()))
+                .forEach(url -> {
+                    String host = url.getIp();
+                    int port = url.getPort();
+
+                    if (restServiceInstance == null) {
+                        String instanceId = currentApplicationName + "-" + host + ":" + port;
+                        this.restServiceInstance = new DefaultServiceInstance(instanceId, currentApplicationName,
+                                host, port, false, new HashMap<>());
+                    } else {
+
+                        if (!host.equals(restServiceInstance.getHost())) {
+                            if (logger.isWarnEnabled()) {
+                                logger.warn("Current application[{}] host is not consistent, expected: {}, actual: {}",
+                                        currentApplicationName, restServiceInstance.getHost(), host);
+                            }
+                        }
+
+                        if (port != restServiceInstance.getPort()) {
+                            if (logger.isWarnEnabled()) {
+                                logger.warn("Current application[{}] port is not consistent, expected: {}, actual: {}",
+                                        currentApplicationName, restServiceInstance.getPort(), port);
+                            }
+                        }
+                    }
+                });
     }
 
     @EventListener(ApplicationReadyEvent.class)
@@ -92,6 +142,32 @@ public class DubboMetadataEventHandlingAutoConfiguration {
         unexportDubboMetadataConfigService();
     }
 
+    @ConditionalOnNotWebApplication
+    @Bean
+    public ApplicationRunner applicationRunner() {
+        return args -> {
+
+            if (restServiceInstance == null) {
+                return;
+            }
+
+            // From RegistrationFactoryProvider
+            RegistrationFactory registrationFactory = context.getBean(RegistrationFactory.class);
+
+            ServiceRegistry<Registration> serviceRegistry = context.getBean(ServiceRegistry.class);
+
+            Registration registration = context.getBean(Registration.class);
+
+            restServiceInstance.getMetadata().putAll(registration.getMetadata());
+
+            serviceRegistry.register(registrationFactory.create(restServiceInstance, context));
+        };
+    }
+
+    private void publishServiceRestMetadata(ServiceBean serviceBean) {
+        dubboMetadataConfigService.publishServiceRestMetadata(metadataResolver.resolveServiceRestMetadata(serviceBean));
+    }
+
     private void exportDubboMetadataConfigService() {
 
         if (serviceConfig != null && serviceConfig.isExported()) {

spring-cloud-alibaba-dubbo/src/main/java/org/springframework/cloud/alibaba/dubbo/autoconfigure/DubboServiceAutoConfiguration.java

@@ -20,6 +20,7 @@ import org.apache.dubbo.common.utils.Assert;
 import org.apache.dubbo.config.spring.util.PropertySourcesUtils;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.context.properties.source.ConfigurationPropertySources;
+import org.springframework.cloud.alibaba.dubbo.registry.RegistrationFactoryProvider;
 import org.springframework.cloud.alibaba.dubbo.registry.handler.DubboRegistryServiceIdHandler;
 import org.springframework.cloud.alibaba.dubbo.registry.handler.StandardDubboRegistryServiceIdHandler;
 import org.springframework.cloud.alibaba.dubbo.service.DubboGenericServiceExecutionContextFactory;
@@ -76,6 +77,11 @@ public class DubboServiceAutoConfiguration {
         return new StandardDubboRegistryServiceIdHandler(context);
     }
 
+    @Bean
+    public RegistrationFactoryProvider registrationFactoryProvider() {
+        return new RegistrationFactoryProvider();
+    }
+
     /**
      * Bugfix code for an issue : https://github.com/apache/incubator-dubbo-spring-boot-project/issues/459
      *

spring-cloud-alibaba-dubbo/src/main/java/org/springframework/cloud/alibaba/dubbo/registry/AbstractRegistrationFactory.java

@@ -37,19 +37,9 @@ public abstract class AbstractRegistrationFactory<R extends Registration> implem
 
     public final R create(URL url, ConfigurableApplicationContext applicationContext) {
         ServiceInstance serviceInstance = createServiceInstance(url, applicationContext);
-        return create(url, applicationContext, serviceInstance);
+        return create(serviceInstance, applicationContext);
     }
 
-    /**
-     * Sub-class should override this method to create an instance of {@link R}
-     *
-     * @param url                The Dubbo's {@link URL}
-     * @param applicationContext {@link ConfigurableApplicationContext}
-     * @param serviceInstance    {@link ServiceInstance}
-     * @return nullable
-     */
-    protected abstract R create(URL url, ConfigurableApplicationContext applicationContext, ServiceInstance serviceInstance);
-
     /**
      * Create an instance {@link ServiceInstance}. This method maybe override by sub-class.
      *

spring-cloud-alibaba-dubbo/src/main/java/org/springframework/cloud/alibaba/dubbo/registry/DefaultRegistrationFactory.java

@@ -16,7 +16,6 @@
  */
 package org.springframework.cloud.alibaba.dubbo.registry;
 
-import org.apache.dubbo.common.URL;
 import org.springframework.cloud.client.ServiceInstance;
 import org.springframework.cloud.client.serviceregistry.Registration;
 import org.springframework.context.ConfigurableApplicationContext;
@@ -29,7 +28,7 @@ import org.springframework.context.ConfigurableApplicationContext;
 public class DefaultRegistrationFactory extends AbstractRegistrationFactory<Registration> {
 
     @Override
-    protected Registration create(URL url, ConfigurableApplicationContext applicationContext, ServiceInstance serviceInstance) {
+    public Registration create(ServiceInstance serviceInstance, ConfigurableApplicationContext applicationContext) {
         return new DelegatingRegistration(serviceInstance);
     }
 }

spring-cloud-alibaba-dubbo/src/main/java/org/springframework/cloud/alibaba/dubbo/registry/RegistrationFactory.java

@@ -17,6 +17,7 @@
 package org.springframework.cloud.alibaba.dubbo.registry;
 
 import org.apache.dubbo.common.URL;
+import org.springframework.cloud.client.ServiceInstance;
 import org.springframework.cloud.client.serviceregistry.Registration;
 import org.springframework.context.ConfigurableApplicationContext;
 
@@ -37,4 +38,13 @@ public interface RegistrationFactory<R extends Registration> {
      * @return a instance of {@link R}, if null, it indicates the registration will not be executed.
      */
     R create(URL url, ConfigurableApplicationContext applicationContext);
+
+    /**
+     * Create a instance of {@link R}
+     *
+     * @param serviceInstance    {@link ServiceInstance}
+     * @param applicationContext {@link ConfigurableApplicationContext}
+     * @return a instance of {@link R}, if null, it indicates the registration will not be executed.
+     */
+    R create(ServiceInstance serviceInstance, ConfigurableApplicationContext applicationContext);
 }

spring-cloud-alibaba-dubbo/src/main/java/org/springframework/cloud/alibaba/dubbo/registry/RegistrationFactoryProvider.java

@@ -0,0 +1,144 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.cloud.alibaba.dubbo.registry;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.BeansException;
+import org.springframework.beans.factory.FactoryBean;
+import org.springframework.cloud.client.serviceregistry.Registration;
+import org.springframework.cloud.client.serviceregistry.ServiceRegistry;
+import org.springframework.context.ApplicationContext;
+import org.springframework.context.ApplicationContextAware;
+import org.springframework.core.ResolvableType;
+
+import java.util.List;
+
+import static org.springframework.beans.BeanUtils.instantiateClass;
+import static org.springframework.core.ResolvableType.forInstance;
+import static org.springframework.core.ResolvableType.forType;
+import static org.springframework.core.io.support.SpringFactoriesLoader.loadFactoryNames;
+import static org.springframework.util.ClassUtils.isPresent;
+import static org.springframework.util.ClassUtils.resolveClassName;
+
+/**
+ * {@link RegistrationFactory} Provider
+ *
+ * @author <a href="mailto:mercyblitz@gmail.com">Mercy</a>
+ */
+public class RegistrationFactoryProvider implements FactoryBean<RegistrationFactory>, ApplicationContextAware {
+
+    private final Logger logger = LoggerFactory.getLogger(getClass());
+
+    private RegistrationFactory registrationFactory;
+
+    @Override
+    public RegistrationFactory getObject() throws BeansException {
+        return registrationFactory;
+    }
+
+    @Override
+    public Class<?> getObjectType() {
+        return RegistrationFactory.class;
+    }
+
+    public boolean isSingleton() {
+        return true;
+    }
+
+    @Override
+    public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
+        ServiceRegistry<Registration> serviceRegistry = applicationContext.getBean(ServiceRegistry.class);
+        ClassLoader classLoader = applicationContext.getClassLoader();
+        this.registrationFactory = buildRegistrationFactory(serviceRegistry, classLoader);
+    }
+
+    private RegistrationFactory buildRegistrationFactory(ServiceRegistry<Registration> serviceRegistry,
+                                                         ClassLoader classLoader) {
+        RegistrationFactory registrationFactory = null;
+        List<String> factoryClassNames = loadFactoryNames(RegistrationFactory.class, classLoader);
+
+        ResolvableType serviceRegistryType = forInstance(serviceRegistry);
+        // Get first generic Class
+        Class<?> registrationClass = resolveGenericClass(serviceRegistryType, ServiceRegistry.class, 0);
+
+        for (String factoryClassName : factoryClassNames) {
+            if (isPresent(factoryClassName, classLoader)) { // ignore compilation issue
+                Class<?> factoryClass = resolveClassName(factoryClassName, classLoader);
+                ResolvableType registrationFactoryType = forType(factoryClass);
+                Class<?> actualRegistrationClass = resolveGenericClass(registrationFactoryType, RegistrationFactory.class, 0);
+                if (registrationClass.equals(actualRegistrationClass)) {
+                    registrationFactory = (RegistrationFactory) instantiateClass(registrationFactoryType.getRawClass());
+                    break;
+                }
+            }
+        }
+
+        if (registrationFactory == null) {
+
+            if (logger.isWarnEnabled()) {
+                logger.warn("{} implementation can't be resolved by ServiceRegistry[{}]",
+                        registrationClass.getSimpleName(), serviceRegistry.getClass().getName());
+            }
+
+            registrationFactory = new DefaultRegistrationFactory();
+        } else {
+            if (logger.isInfoEnabled()) {
+                logger.info("{} has been resolved by ServiceRegistry[{}]",
+                        registrationFactory.getClass().getName(), serviceRegistry.getClass().getName());
+            }
+        }
+
+        return registrationFactory;
+    }
+
+    private Class<?> resolveGenericClass(ResolvableType implementedType, Class<?> interfaceClass, int index) {
+
+        ResolvableType resolvableType = implementedType;
+
+        try {
+            OUTER:
+            while (true) {
+
+                ResolvableType[] interfaceTypes = resolvableType.getInterfaces();
+
+                for (ResolvableType interfaceType : interfaceTypes) {
+                    if (interfaceType.resolve().equals(interfaceClass)) {
+                        resolvableType = interfaceType;
+                        break OUTER;
+                    }
+                }
+
+                ResolvableType superType = resolvableType.getSuperType();
+
+                Class<?> superClass = superType.resolve();
+
+                if (Object.class.equals(superClass)) {
+                    break;
+                }
+
+                resolvableType = superType;
+            }
+
+        } catch (Throwable e) {
+            resolvableType = ResolvableType.forType(void.class);
+        }
+
+        return resolvableType.resolveGeneric(index);
+    }
+
+}

spring-cloud-alibaba-dubbo/src/main/java/org/springframework/cloud/alibaba/dubbo/registry/SpringCloudRegistryFactory.java

@@ -26,19 +26,11 @@ import org.springframework.cloud.client.discovery.DiscoveryClient;
 import org.springframework.cloud.client.serviceregistry.Registration;
 import org.springframework.cloud.client.serviceregistry.ServiceRegistry;
 import org.springframework.context.ConfigurableApplicationContext;
-import org.springframework.core.ResolvableType;
 
-import java.util.List;
 import java.util.concurrent.ScheduledExecutorService;
 
 import static java.lang.System.getProperty;
 import static java.util.concurrent.Executors.newSingleThreadScheduledExecutor;
-import static org.springframework.beans.BeanUtils.instantiateClass;
-import static org.springframework.core.ResolvableType.forInstance;
-import static org.springframework.core.ResolvableType.forType;
-import static org.springframework.core.io.support.SpringFactoriesLoader.loadFactoryNames;
-import static org.springframework.util.ClassUtils.isPresent;
-import static org.springframework.util.ClassUtils.resolveClassName;
 
 /**
  * Dubbo {@link RegistryFactory} uses Spring Cloud Service Registration abstraction, whose protocol is "spring-cloud"
@@ -77,7 +69,7 @@ public class SpringCloudRegistryFactory implements RegistryFactory {
         }
 
         this.serviceRegistry = applicationContext.getBean(ServiceRegistry.class);
-        this.registrationFactory = buildRegistrationFactory(serviceRegistry, applicationContext.getClassLoader());
+        this.registrationFactory = applicationContext.getBean(RegistrationFactory.class);
         this.discoveryClient = applicationContext.getBean(DiscoveryClient.class);
     }
 
@@ -91,80 +83,4 @@ public class SpringCloudRegistryFactory implements RegistryFactory {
     public static void setApplicationContext(ConfigurableApplicationContext applicationContext) {
         SpringCloudRegistryFactory.applicationContext = applicationContext;
     }
-
-
-    private RegistrationFactory buildRegistrationFactory(ServiceRegistry<Registration> serviceRegistry,
-                                                         ClassLoader classLoader) {
-        RegistrationFactory registrationFactory = null;
-        List<String> factoryClassNames = loadFactoryNames(RegistrationFactory.class, classLoader);
-
-        ResolvableType serviceRegistryType = forInstance(serviceRegistry);
-        // Get first generic Class
-        Class<?> registrationClass = resolveGenericClass(serviceRegistryType, ServiceRegistry.class, 0);
-
-        for (String factoryClassName : factoryClassNames) {
-            if (isPresent(factoryClassName, classLoader)) { // ignore compilation issue
-                Class<?> factoryClass = resolveClassName(factoryClassName, classLoader);
-                ResolvableType registrationFactoryType = forType(factoryClass);
-                Class<?> actualRegistrationClass = resolveGenericClass(registrationFactoryType, RegistrationFactory.class, 0);
-                if (registrationClass.equals(actualRegistrationClass)) {
-                    registrationFactory = (RegistrationFactory) instantiateClass(registrationFactoryType.getRawClass());
-                    break;
-                }
-            }
-        }
-
-        if (registrationFactory == null) {
-
-            if (logger.isWarnEnabled()) {
-                logger.warn("{} implementation can't be resolved by ServiceRegistry[{}]",
-                        registrationClass.getSimpleName(), serviceRegistry.getClass().getName());
-            }
-
-            registrationFactory = new DefaultRegistrationFactory();
-        } else {
-            if (logger.isInfoEnabled()) {
-                logger.info("{} has been resolved by ServiceRegistry[{}]",
-                        registrationFactory.getClass().getName(), serviceRegistry.getClass().getName());
-            }
-        }
-
-        return registrationFactory;
-    }
-
-    private Class<?> resolveGenericClass(ResolvableType implementedType, Class<?> interfaceClass, int index) {
-
-        ResolvableType resolvableType = implementedType;
-
-        try {
-            OUTER:
-            while (true) {
-
-                ResolvableType[] interfaceTypes = resolvableType.getInterfaces();
-
-                for (ResolvableType interfaceType : interfaceTypes) {
-                    if (interfaceType.resolve().equals(interfaceClass)) {
-                        resolvableType = interfaceType;
-                        break OUTER;
-                    }
-                }
-
-                ResolvableType superType = resolvableType.getSuperType();
-
-                Class<?> superClass = superType.resolve();
-
-                if (Object.class.equals(superClass)) {
-                    break;
-                }
-
-                resolvableType = superType;
-            }
-
-        } catch (Throwable e) {
-            resolvableType = ResolvableType.forType(void.class);
-        }
-
-        return resolvableType.resolveGeneric(index);
-    }
-
 }

spring-cloud-alibaba-dubbo/src/main/java/org/springframework/cloud/alibaba/dubbo/registry/apache/zookeeper/ZookeeperRegistrationFactory.java

@@ -16,7 +16,6 @@
  */
 package org.springframework.cloud.alibaba.dubbo.registry.apache.zookeeper;
 
-import org.apache.dubbo.common.URL;
 import org.springframework.cloud.alibaba.dubbo.registry.AbstractRegistrationFactory;
 import org.springframework.cloud.alibaba.dubbo.registry.RegistrationFactory;
 import org.springframework.cloud.client.ServiceInstance;
@@ -33,7 +32,7 @@ import org.springframework.context.ConfigurableApplicationContext;
 public class ZookeeperRegistrationFactory extends AbstractRegistrationFactory<ZookeeperRegistration> {
 
     @Override
-    protected ZookeeperRegistration create(URL url, ConfigurableApplicationContext applicationContext, ServiceInstance serviceInstance) {
+    public ZookeeperRegistration create(ServiceInstance serviceInstance, ConfigurableApplicationContext applicationContext) {
         ZookeeperInstance zookeeperInstance = new ZookeeperInstance(serviceInstance.getInstanceId(),
                 serviceInstance.getServiceId(), serviceInstance.getMetadata());
 

spring-cloud-alibaba-dubbo/src/main/java/org/springframework/cloud/alibaba/dubbo/registry/hashicorp/consul/ConsulRegistrationFactory.java

@@ -17,7 +17,6 @@
 package org.springframework.cloud.alibaba.dubbo.registry.hashicorp.consul;
 
 import com.ecwid.consul.v1.agent.model.NewService;
-import org.apache.dubbo.common.URL;
 import org.springframework.cloud.alibaba.dubbo.registry.AbstractRegistrationFactory;
 import org.springframework.cloud.alibaba.dubbo.registry.RegistrationFactory;
 import org.springframework.cloud.client.ServiceInstance;
@@ -40,7 +39,7 @@ import java.util.Set;
 public class ConsulRegistrationFactory extends AbstractRegistrationFactory<ConsulRegistration> {
 
     @Override
-    protected ConsulRegistration create(URL url, ConfigurableApplicationContext applicationContext, ServiceInstance serviceInstance) {
+    public ConsulRegistration create(ServiceInstance serviceInstance, ConfigurableApplicationContext applicationContext) {
         Map<String, String> metadata = getMetadata(serviceInstance);
         List<String> tags = createTags(metadata);
 

spring-cloud-alibaba-dubbo/src/main/java/org/springframework/cloud/alibaba/dubbo/registry/netflix/eureka/EurekaRegistrationFactory.java

@@ -18,7 +18,6 @@ package org.springframework.cloud.alibaba.dubbo.registry.netflix.eureka;
 
 import com.netflix.appinfo.HealthCheckHandler;
 import com.netflix.discovery.EurekaClientConfig;
-import org.apache.dubbo.common.URL;
 import org.springframework.beans.BeanUtils;
 import org.springframework.beans.factory.ObjectProvider;
 import org.springframework.cloud.alibaba.dubbo.registry.AbstractRegistrationFactory;
@@ -37,7 +36,7 @@ import org.springframework.context.ConfigurableApplicationContext;
 public class EurekaRegistrationFactory extends AbstractRegistrationFactory<EurekaRegistration> {
 
     @Override
-    protected EurekaRegistration create(URL url, ConfigurableApplicationContext applicationContext, ServiceInstance serviceInstance) {
+    public EurekaRegistration create(ServiceInstance serviceInstance, ConfigurableApplicationContext applicationContext) {
         CloudEurekaInstanceConfig cloudEurekaInstanceConfig = applicationContext.getBean(CloudEurekaInstanceConfig.class);
         ObjectProvider<HealthCheckHandler> healthCheckHandler = applicationContext.getBeanProvider(HealthCheckHandler.class);
         EurekaClientConfig eurekaClientConfig = applicationContext.getBean(EurekaClientConfig.class);

spring-cloud-alibaba-examples/spring-cloud-alibaba-dubbo-examples/pom.xml

@@ -19,6 +19,7 @@
         <module>spring-cloud-dubbo-sample-api</module>
         <module>spring-cloud-dubbo-provider-sample</module>
         <module>spring-cloud-dubbo-consumer-sample</module>
+        <module>spring-cloud-dubbo-provider-web-sample</module>
     </modules>
 
     <properties>

spring-cloud-alibaba-examples/spring-cloud-alibaba-dubbo-examples/spring-cloud-dubbo-consumer-sample/src/main/java/org/springframework/cloud/alibaba/dubbo/bootstrap/DubboSpringCloudConsumerBootstrap.java

@@ -208,7 +208,7 @@ public class DubboSpringCloudConsumerBootstrap {
 
     public static void main(String[] args) {
         new SpringApplicationBuilder(DubboSpringCloudConsumerBootstrap.class)
-                .profiles("nacos")
+                .properties("spring.profiles.active=nacos")
                 .run(args);
     }
 }

spring-cloud-alibaba-examples/spring-cloud-alibaba-dubbo-examples/spring-cloud-dubbo-consumer-sample/src/main/resources/application.yaml

@@ -1,8 +1,12 @@
 dubbo:
   registry:
-#   The Spring Cloud Dubbo's registry extension
+    #   The Spring Cloud Dubbo's registry extension
     address: spring-cloud://localhost
 #   The traditional Dubbo's registry
 #   address: zookeeper://127.0.0.1:2181
 server:
-  port: 7070
+  port: 0
+
+provider:
+  application:
+    name: spring-cloud-alibaba-dubbo-web-provider

spring-cloud-alibaba-examples/spring-cloud-alibaba-dubbo-examples/spring-cloud-dubbo-consumer-sample/src/main/resources/bootstrap.yaml

@@ -24,10 +24,6 @@ ribbon:
   nacos:
     enabled: false
 
-provider:
-  application:
-    name: spring-cloud-alibaba-dubbo-provider
-
 ---
 spring:
   profiles: nacos
@@ -51,7 +47,7 @@ eureka:
   client:
     enabled: true
     service-url:
-      defaultZone: http://127.0.0.1:9090/eureka/
+      defaultZone: http://127.0.0.1:8761/eureka/
 
 
 ---

spring-cloud-alibaba-examples/spring-cloud-alibaba-dubbo-examples/spring-cloud-dubbo-provider-sample/pom.xml

@@ -17,9 +17,10 @@
 
     <dependencies>
 
+        <!-- Resolve the Spring Cloud registration issue -->
         <dependency>
-            <groupId>org.springframework.boot</groupId>
+            <groupId>org.springframework</groupId>
-            <artifactId>spring-boot-starter-web</artifactId>
+            <artifactId>spring-web</artifactId>
         </dependency>
 
         <!-- Sample API -->
@@ -30,6 +31,11 @@
         </dependency>
 
         <!-- REST support dependencies -->
+        <dependency>
+            <groupId>io.netty</groupId>
+            <artifactId>netty-all</artifactId>
+        </dependency>
+
         <dependency>
             <groupId>org.jboss.resteasy</groupId>
             <artifactId>resteasy-jaxrs</artifactId>
@@ -60,6 +66,11 @@
             <artifactId>resteasy-jaxb-provider</artifactId>
         </dependency>
 
+        <dependency>
+            <groupId>org.hibernate.validator</groupId>
+            <artifactId>hibernate-validator</artifactId>
+        </dependency>
+
     </dependencies>
 
 </project>

spring-cloud-alibaba-examples/spring-cloud-alibaba-dubbo-examples/spring-cloud-dubbo-provider-sample/src/main/java/org/springframework/cloud/alibaba/dubbo/bootstrap/DubboSpringCloudProviderBootstrap.java

@@ -29,7 +29,7 @@ public class DubboSpringCloudProviderBootstrap {
 
     public static void main(String[] args) {
         new SpringApplicationBuilder(DubboSpringCloudProviderBootstrap.class)
-                .profiles("nacos")
+                .properties("spring.profiles.active=nacos")
                 .run(args);
     }
 }

spring-cloud-alibaba-examples/spring-cloud-alibaba-dubbo-examples/spring-cloud-dubbo-provider-sample/src/main/java/org/springframework/cloud/alibaba/dubbo/service/StandardRestService.java

@@ -16,17 +16,9 @@
  */
 package org.springframework.cloud.alibaba.dubbo.service;
 
-import org.apache.dubbo.rpc.RpcContext;
+import org.apache.dubbo.config.annotation.Service;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.springframework.http.MediaType;
-import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.PathVariable;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RequestBody;
-import org.springframework.web.bind.annotation.RequestHeader;
-import org.springframework.web.bind.annotation.RequestParam;
-import org.springframework.web.bind.annotation.RestController;
 
 import javax.ws.rs.Consumes;
 import javax.ws.rs.FormParam;
@@ -37,9 +29,11 @@ import javax.ws.rs.Path;
 import javax.ws.rs.PathParam;
 import javax.ws.rs.Produces;
 import javax.ws.rs.QueryParam;
+import javax.ws.rs.core.MediaType;
 import java.util.HashMap;
 import java.util.Map;
 
+import static org.springframework.cloud.alibaba.dubbo.util.LoggerUtils.log;
 import static org.springframework.util.MimeTypeUtils.APPLICATION_JSON_VALUE;
 
 /**
@@ -47,50 +41,46 @@ import static org.springframework.util.MimeTypeUtils.APPLICATION_JSON_VALUE;
  *
  * @author <a href="mailto:mercyblitz@gmail.com">Mercy</a>
  */
-@org.apache.dubbo.config.annotation.Service(version = "1.0.0", protocol = {"dubbo", "rest"})
+@Service(version = "1.0.0", protocol = {"dubbo", "rest"})
-@RestController
 @Path("/")
 public class StandardRestService implements RestService {
 
     private Logger logger = LoggerFactory.getLogger(getClass());
 
     @Override
-    @GetMapping(value = "/param")
+    @Path("param")
-    @Path("/param")
     @GET
-    public String param(@RequestParam @QueryParam("param") String param) {
+    public String param(@QueryParam("param") String param) {
         log("/param", param);
         return param;
     }
 
     @Override
-    @PostMapping("/params")
+    @Path("params")
-    @Path("/params")
     @POST
-    public String params(@RequestParam @QueryParam("a") int a, @RequestParam @QueryParam("b") String b) {
+    public String params(@QueryParam("a") int a, @QueryParam("b") String b) {
         log("/params", a + b);
         return a + b;
     }
 
     @Override
-    @GetMapping("/headers")
+    @Path("headers")
-    @Path("/headers")
     @GET
-    public String headers(@RequestHeader("h") @HeaderParam("h") String header,
+    public String headers(@HeaderParam("h") String header,
-                          @RequestHeader("h2") @HeaderParam("h2") String header2,
+                          @HeaderParam("h2") String header2,
-                          @RequestParam("v") @QueryParam("v") Integer param) {
+                          @QueryParam("v")
+                                  Integer param) {
         String result = header + " , " + header2 + " , " + param;
         log("/headers", result);
         return result;
     }
 
     @Override
-    @GetMapping("/path-variables/{p1}/{p2}")
+    @Path("path-variables/{p1}/{p2}")
-    @Path("/path-variables/{p1}/{p2}")
     @GET
-    public String pathVariables(@PathVariable("p1") @PathParam("p1") String path1,
+    public String pathVariables(@PathParam("p1") String path1,
-                                @PathVariable("p2") @PathParam("p2") String path2,
+                                @PathParam("p2") String path2,
-                                @RequestParam("v") @QueryParam("v") String param) {
+                                @QueryParam("v") String param) {
         String result = path1 + " , " + path2 + " , " + param;
         log("/path-variables", result);
         return result;
@@ -100,19 +90,17 @@ public class StandardRestService implements RestService {
     // @CookieValue also does not support
 
     @Override
-    @PostMapping("/form")
+    @Path("form")
-    @Path("/form")
     @POST
-    public String form(@RequestParam("f") @FormParam("f") String form) {
+    public String form(@FormParam("f") String form) {
         return String.valueOf(form);
     }
 
     @Override
-    @PostMapping(value = "/request/body/map", produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
+    @Path("request/body/map")
-    @Path("/request/body/map")
     @POST
     @Produces(APPLICATION_JSON_VALUE)
-    public User requestBodyMap(@RequestBody Map<String, Object> data, @RequestParam("param") @QueryParam("param") String param) {
+    public User requestBodyMap(Map<String, Object> data, @QueryParam("param") String param) {
         User user = new User();
         user.setId(((Integer) data.get("id")).longValue());
         user.setName((String) data.get("name"));
@@ -121,28 +109,15 @@ public class StandardRestService implements RestService {
         return user;
     }
 
-    @PostMapping(value = "/request/body/user", consumes = MediaType.APPLICATION_JSON_UTF8_VALUE)
+    @Path("request/body/user")
-    @Path("/request/body/user")
     @POST
     @Override
-    @Consumes(MediaType.APPLICATION_JSON_UTF8_VALUE)
+    @Consumes(MediaType.APPLICATION_JSON)
-    public Map<String, Object> requestBodyUser(@RequestBody User user) {
+    public Map<String, Object> requestBodyUser(User user) {
         Map<String, Object> map = new HashMap<>();
         map.put("id", user.getId());
         map.put("name", user.getName());
         map.put("age", user.getAge());
         return map;
     }
-
-    private void log(String url, Object result) {
-        String message = String.format("The client[%s] uses '%s' protocol to call %s : %s",
-                RpcContext.getContext().getRemoteHostName(),
-                RpcContext.getContext().getUrl() == null ? "N/A" : RpcContext.getContext().getUrl().getProtocol(),
-                url,
-                result
-        );
-        if (logger.isInfoEnabled()) {
-            logger.info(message);
-        }
-    }
 }

spring-cloud-alibaba-examples/spring-cloud-alibaba-dubbo-examples/spring-cloud-dubbo-provider-sample/src/main/resources/application.yaml

@@ -4,20 +4,16 @@ dubbo:
   protocols:
     dubbo:
       name: dubbo
-      port: 12345
+      port: -1
     rest:
       name: rest
-      port: 8081
+      port: 9090
       server: netty
   registry:
 #   The Spring Cloud Dubbo's registry extension
     address: spring-cloud://localhost
 #   The traditional Dubbo's registry
 #   address: zookeeper://127.0.0.1:2181
-
 feign:
   hystrix:
-    enabled: true
+    enabled: true
-
-server:
-  port: 8080

spring-cloud-alibaba-examples/spring-cloud-alibaba-dubbo-examples/spring-cloud-dubbo-provider-sample/src/main/resources/bootstrap.yaml

@@ -41,7 +41,7 @@ eureka:
   client:
     enabled: true
     service-url:
-      defaultZone: http://127.0.0.1:9090/eureka/
+      defaultZone: http://127.0.0.1:8761/eureka/
 
 
 ---

spring-cloud-alibaba-examples/spring-cloud-alibaba-dubbo-examples/spring-cloud-dubbo-provider-web-sample/pom.xml

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <parent>
+        <artifactId>spring-cloud-alibaba-dubbo-examples</artifactId>
+        <groupId>org.springframework.cloud</groupId>
+        <version>0.2.2.BUILD-SNAPSHOT</version>
+        <relativePath>../pom.xml</relativePath>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>org.springframework.cloud</groupId>
+    <artifactId>spring-cloud-dubbo-provider-web-sample</artifactId>
+    <name>Spring Cloud Dubbo Provider Web Sample</name>
+
+    <dependencies>
+
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-web</artifactId>
+        </dependency>
+
+        <!-- Sample API -->
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-dubbo-sample-api</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+
+    </dependencies>
+
+</project>

spring-cloud-alibaba-examples/spring-cloud-alibaba-dubbo-examples/spring-cloud-dubbo-provider-web-sample/src/main/java/org/springframework/cloud/alibaba/dubbo/bootstrap/DubboSpringCloudWebProviderBootstrap.java

@@ -0,0 +1,35 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.cloud.alibaba.dubbo.bootstrap;
+
+import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
+import org.springframework.boot.builder.SpringApplicationBuilder;
+import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
+
+/**
+ * Dubbo Spring Cloud Provider Bootstrap
+ */
+@EnableDiscoveryClient
+@EnableAutoConfiguration
+public class DubboSpringCloudWebProviderBootstrap {
+
+    public static void main(String[] args) {
+        new SpringApplicationBuilder(DubboSpringCloudWebProviderBootstrap.class)
+                .properties("spring.profiles.active=nacos")
+                .run(args);
+    }
+}

spring-cloud-alibaba-examples/spring-cloud-alibaba-dubbo-examples/spring-cloud-dubbo-provider-web-sample/src/main/java/org/springframework/cloud/alibaba/dubbo/service/SpringRestService.java

@@ -0,0 +1,109 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.cloud.alibaba.dubbo.service;
+
+import org.apache.dubbo.config.annotation.Service;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.http.MediaType;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestHeader;
+import org.springframework.web.bind.annotation.RequestParam;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import static org.springframework.cloud.alibaba.dubbo.util.LoggerUtils.log;
+
+/**
+ * Spring MVC {@link RestService}
+ *
+ * @author <a href="mailto:mercyblitz@gmail.com">Mercy</a>
+ */
+@Service(version = "1.0.0")
+@RestController
+public class SpringRestService implements RestService {
+
+    private Logger logger = LoggerFactory.getLogger(getClass());
+
+    @Override
+    @GetMapping(value = "/param")
+    public String param(@RequestParam String param) {
+        log("/param", param);
+        return param;
+    }
+
+    @Override
+    @PostMapping("/params")
+    public String params(@RequestParam int a, @RequestParam String b) {
+        log("/params", a + b);
+        return a + b;
+    }
+
+    @Override
+    @GetMapping("/headers")
+    public String headers(@RequestHeader("h") String header,
+                          @RequestHeader("h2") String header2,
+                          @RequestParam("v") Integer param) {
+        String result = header + " , " + header2 + " , " + param;
+        log("/headers", result);
+        return result;
+    }
+
+    @Override
+    @GetMapping("/path-variables/{p1}/{p2}")
+    public String pathVariables(@PathVariable("p1") String path1,
+                                @PathVariable("p2") String path2,
+                                @RequestParam("v") String param) {
+        String result = path1 + " , " + path2 + " , " + param;
+        log("/path-variables", result);
+        return result;
+    }
+
+    @Override
+    @PostMapping("/form")
+    public String form(@RequestParam("f") String form) {
+        return String.valueOf(form);
+    }
+
+    @Override
+    @PostMapping(value = "/request/body/map", produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
+    public User requestBodyMap(@RequestBody Map<String, Object> data, @RequestParam("param") String param) {
+        User user = new User();
+        user.setId(((Integer) data.get("id")).longValue());
+        user.setName((String) data.get("name"));
+        user.setAge((Integer) data.get("age"));
+        log("/request/body/map", param);
+        return user;
+    }
+
+    @PostMapping(value = "/request/body/user", consumes = MediaType.APPLICATION_JSON_UTF8_VALUE)
+    @Override
+    public Map<String, Object> requestBodyUser(@RequestBody User user) {
+        Map<String, Object> map = new HashMap<>();
+        map.put("id", user.getId());
+        map.put("name", user.getName());
+        map.put("age", user.getAge());
+        return map;
+    }
+
+}
+

spring-cloud-alibaba-examples/spring-cloud-alibaba-dubbo-examples/spring-cloud-dubbo-provider-web-sample/src/main/resources/application.yaml

@@ -0,0 +1,19 @@
+dubbo:
+  scan:
+    base-packages: org.springframework.cloud.alibaba.dubbo.service
+  protocols:
+    dubbo:
+      name: dubbo
+      port: -1
+  registry:
+#   The Spring Cloud Dubbo's registry extension
+    address: spring-cloud://localhost
+#   The traditional Dubbo's registry
+#   address: zookeeper://127.0.0.1:2181
+
+feign:
+  hystrix:
+    enabled: true
+
+server:
+  port: 8080

spring-cloud-alibaba-examples/spring-cloud-alibaba-dubbo-examples/spring-cloud-dubbo-provider-web-sample/src/main/resources/bootstrap.yaml

@@ -0,0 +1,64 @@
+spring:
+  application:
+    name: spring-cloud-alibaba-dubbo-web-provider
+  main:
+    allow-bean-definition-overriding: true
+
+
+  # default disable all
+  cloud:
+    nacos:
+      discovery:
+        enabled: false
+        register-enabled: false
+    zookeeper:
+      enabled: false
+    consul:
+      enabled: false
+
+eureka:
+  client:
+    enabled: false
+
+
+---
+spring:
+  profiles: nacos
+
+  cloud:
+    nacos:
+      discovery:
+        enabled: true
+        register-enabled: true
+        server-addr: 127.0.0.1:8848
+
+
+---
+spring:
+  profiles: eureka
+
+eureka:
+  client:
+    enabled: true
+    service-url:
+      defaultZone: http://127.0.0.1:8761/eureka/
+
+
+---
+spring:
+  profiles: zookeeper
+  cloud:
+    zookeeper:
+      enabled: true
+      connect-string: 127.0.0.1:2181
+
+
+---
+spring:
+  profiles: consul
+
+  cloud:
+    consul:
+      enabled: true
+      host: 127.0.0.1
+      port: 8500

spring-cloud-alibaba-examples/spring-cloud-alibaba-dubbo-examples/spring-cloud-dubbo-sample-api/src/main/java/org/springframework/cloud/alibaba/dubbo/util/LoggerUtils.java

@@ -0,0 +1,41 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.springframework.cloud.alibaba.dubbo.util;
+
+import org.apache.dubbo.rpc.RpcContext;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Logger Utilities
+ */
+public abstract class LoggerUtils {
+
+    private static final Logger logger = LoggerFactory.getLogger(LoggerUtils.class);
+
+    public static void log(String url, Object result) {
+        String message = String.format("The client[%s] uses '%s' protocol to call %s : %s",
+                RpcContext.getContext().getRemoteHostName(),
+                RpcContext.getContext().getUrl() == null ? "N/A" : RpcContext.getContext().getUrl().getProtocol(),
+                url,
+                result
+        );
+        if (logger.isInfoEnabled()) {
+            logger.info(message);
+        }
+    }
+}