update nacos version to 0.2.1-RC and format code

spring-cloud-alibaba-dependencies/pom.xml

@@ -18,7 +18,7 @@
     <properties>
         <sentinel.version>0.1.1</sentinel.version>
         <oss.version>3.1.0</oss.version>
-        <nacos.version>0.2.0</nacos.version>
+        <nacos.version>0.2.1-RC1</nacos.version>
     </properties>
 
     <dependencyManagement>

spring-cloud-alibaba-examples/nacos-example/nacos-config-example/src/main/resources/bootstrap.properties

@@ -1 +1 @@
-spring.cloud.nacos.config.server-addr=127.0.0.1:8080
+spring.cloud.nacos.config.server-addr=127.0.0.1:8848

spring-cloud-alibaba-examples/nacos-example/nacos-discovery-example/nacos-discovery-consumer-example/src/main/resources/application.properties

@@ -1,4 +1,4 @@
 spring.application.name=service-consumer
 server.port=18083
 management.endpoints.web.exposure.include=*
-spring.cloud.nacos.discovery.server-addr=127.0.0.1:8080
+spring.cloud.nacos.discovery.server-addr=127.0.0.1:8848

spring-cloud-alibaba-examples/nacos-example/nacos-discovery-example/nacos-discovery-provider-example/src/main/resources/application.properties

@@ -1,4 +1,4 @@
 server.port=18082
 spring.application.name=service-provider
-spring.cloud.nacos.discovery.server-addr=127.0.0.1:8080
+spring.cloud.nacos.discovery.server-addr=127.0.0.1:8848
 management.endpoints.web.exposure.include=*

spring-cloud-alibaba-nacos-config/src/main/java/org/springframework/cloud/alibaba/nacos/client/NacosPropertySourceLocator.java

@@ -16,7 +16,6 @@
 
 package org.springframework.cloud.alibaba.nacos.client;
 
-
 import java.util.Properties;
 
 import org.slf4j.Logger;
@@ -81,13 +80,14 @@ public class NacosPropertySourceLocator implements PropertySourceLocator {
 		Properties properties = getPropertiesFromEnv(env);
 
 		try {
-			configService =  NacosFactory.createConfigService(properties);
+			configService = NacosFactory.createConfigService(properties);
 		}
 		catch (NacosException e) {
-			logger.error("create config service error, nacosConfigProperties:{}, ", properties, e);
+			logger.error("create config service error, nacosConfigProperties:{}, ",
+					properties, e);
 			return null;
 		}
-		
+
 		beanFactory.registerSingleton("configService", configService);
 
 		if (null == configService) {
@@ -96,7 +96,8 @@ public class NacosPropertySourceLocator implements PropertySourceLocator {
 			return null;
 		}
 		long timeout = nacosConfigProperties.getTimeout();
-		nacosPropertySourceBuilder = new NacosPropertySourceBuilder(configService, timeout);
+		nacosPropertySourceBuilder = new NacosPropertySourceBuilder(configService,
+				timeout);
 
 		String applicationName = env.getProperty("spring.application.name");
 		logger.info("Initialize spring.application.name '" + applicationName + "'.");
@@ -112,7 +113,8 @@ public class NacosPropertySourceLocator implements PropertySourceLocator {
 		CompositePropertySource composite = new CompositePropertySource(
 				NACOS_PROPERTY_SOURCE_NAME);
 
-		loadApplicationConfiguration(composite, env, nacosGroup, dataIdPrefix, contentType);
+		loadApplicationConfiguration(composite, env, nacosGroup, dataIdPrefix,
+				contentType);
 
 		return composite;
 	}
@@ -131,8 +133,9 @@ public class NacosPropertySourceLocator implements PropertySourceLocator {
 	}
 
 	private void loadNacosDataIfPresent(final CompositePropertySource composite,
-			final String dataId, final String group,String contentType) {
-		NacosPropertySource ps = nacosPropertySourceBuilder.build(dataId, group, contentType);
+			final String dataId, final String group, String contentType) {
+		NacosPropertySource ps = nacosPropertySourceBuilder.build(dataId, group,
+				contentType);
 		if (ps != null) {
 			composite.addFirstPropertySource(ps);
 		}

spring-cloud-alibaba-nacos-config/src/main/resources/META-INF/spring.factories

@@ -4,4 +4,4 @@ org.springframework.boot.autoconfigure.EnableAutoConfiguration=\
 org.springframework.cloud.alibaba.nacos.NacosConfigAutoConfiguration,\
 org.springframework.cloud.alibaba.nacos.endpoint.NacosConfigEndpointAutoConfiguration
 org.springframework.boot.diagnostics.FailureAnalyzer=\
-org.springframework.cloud.alibaba.nacos..analyzer.NacosConnectionFailureAnalyzerdiagnostics
+org.springframework.cloud.alibaba.nacos.diagnostics.analyzer.NacosConnectionFailureAnalyzer

spring-cloud-alibaba-nacos-discovery/src/main/java/org/springframework/cloud/alibaba/nacos/ribbon/NacosServer.java

@@ -37,7 +37,7 @@ public class NacosServer extends Server {
 		this.metaInfo = new MetaInfo() {
 			@Override
 			public String getAppName() {
-				return instance.getService().getName();
+				return instance.serviceName();
 			}
 
 			@Override

spring-cloud-alibaba-nacos-discovery/src/main/java/org/springframework/cloud/alibaba/nacos/ribbon/NacosServerList.java

@@ -56,7 +56,7 @@ public class NacosServerList extends AbstractServerList<NacosServer> {
 	private List<NacosServer> getServers() {
 		try {
 			List<Instance> instances = registration.getNacosNamingService()
-					.selectInstances(serviceId, true);
+					.getAllInstances(serviceId);
 			return instancesToServerList(instances);
 		}
 		catch (Exception e) {