support spring cloud nacos config enabled , Polish #411

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

@@ -17,6 +17,7 @@
 package org.springframework.cloud.alibaba.nacos;
 
 import org.springframework.beans.factory.BeanFactoryUtils;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.cloud.alibaba.nacos.refresh.NacosContextRefresher;
 import org.springframework.cloud.alibaba.nacos.refresh.NacosRefreshHistory;
 import org.springframework.cloud.alibaba.nacos.refresh.NacosRefreshProperties;
@@ -28,6 +29,7 @@ import org.springframework.context.annotation.Configuration;
  * @author juven.xuxb
  */
 @Configuration
+@ConditionalOnProperty(name = "spring.cloud.nacos.config.enabled", matchIfMissing = true)
 public class NacosConfigAutoConfiguration {
 
 	@Bean

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

@@ -26,6 +26,7 @@ import org.springframework.context.annotation.Configuration;
  * @author xiaojing
  */
 @Configuration
+@ConditionalOnProperty(name = "spring.cloud.nacos.config.enabled", matchIfMissing = true)
 public class NacosConfigBootstrapConfiguration {
 
 	@Bean
@@ -35,7 +36,6 @@ public class NacosConfigBootstrapConfiguration {
 	}
 
 	@Bean
-	@ConditionalOnProperty(name = "spring.cloud.nacos.config.enabled", matchIfMissing = true)
 	public NacosPropertySourceLocator nacosPropertySourceLocator(
 			NacosConfigProperties nacosConfigProperties) {
 		return new NacosPropertySourceLocator(nacosConfigProperties);

spring-cloud-alibaba-nacos-config/src/main/java/org/springframework/cloud/alibaba/nacos/endpoint/NacosConfigEndpointAutoConfiguration.java

@@ -21,6 +21,7 @@ import org.springframework.boot.actuate.autoconfigure.endpoint.condition.Conditi
 import org.springframework.boot.actuate.endpoint.annotation.Endpoint;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
+import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnWebApplication;
 import org.springframework.cloud.alibaba.nacos.NacosConfigProperties;
 import org.springframework.cloud.alibaba.nacos.refresh.NacosRefreshHistory;
@@ -31,6 +32,7 @@ import org.springframework.context.annotation.Bean;
  */
 @ConditionalOnWebApplication
 @ConditionalOnClass(value = Endpoint.class)
+@ConditionalOnProperty(name = "spring.cloud.nacos.config.enabled", matchIfMissing = true)
 public class NacosConfigEndpointAutoConfiguration {
 
 	@Autowired