diff --git a/spring-cloud-alibaba-nacos-discovery/src/main/java/org/springframework/cloud/alibaba/nacos/NacosDiscoveryAutoConfiguration.java b/spring-cloud-alibaba-nacos-discovery/src/main/java/org/springframework/cloud/alibaba/nacos/NacosDiscoveryAutoConfiguration.java
index c092f62a1..3ea869524 100644
--- a/spring-cloud-alibaba-nacos-discovery/src/main/java/org/springframework/cloud/alibaba/nacos/NacosDiscoveryAutoConfiguration.java
+++ b/spring-cloud-alibaba-nacos-discovery/src/main/java/org/springframework/cloud/alibaba/nacos/NacosDiscoveryAutoConfiguration.java
@@ -17,12 +17,9 @@
 package org.springframework.cloud.alibaba.nacos;
 
 import org.springframework.boot.autoconfigure.AutoConfigureAfter;
-import org.springframework.boot.autoconfigure.AutoConfigureBefore;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnBean;
-import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
 import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
 import org.springframework.boot.context.properties.EnableConfigurationProperties;
-import org.springframework.cloud.alibaba.nacos.discovery.NacosDiscoveryClientAutoConfiguration;
 import org.springframework.cloud.alibaba.nacos.registry.NacosAutoServiceRegistration;
 import org.springframework.cloud.alibaba.nacos.registry.NacosRegistration;
 import org.springframework.cloud.alibaba.nacos.registry.NacosServiceRegistry;
@@ -41,31 +38,31 @@ import org.springframework.context.annotation.Configuration;
 @EnableConfigurationProperties
 @ConditionalOnNacosDiscoveryEnabled
 @ConditionalOnProperty(value = "spring.cloud.service-registry.auto-registration.enabled", matchIfMissing = true)
-@AutoConfigureAfter({ AutoServiceRegistrationConfiguration.class,
-		AutoServiceRegistrationAutoConfiguration.class })
+@AutoConfigureAfter({AutoServiceRegistrationConfiguration.class,
+        AutoServiceRegistrationAutoConfiguration.class})
 public class NacosDiscoveryAutoConfiguration {
 
-	@Bean
-	public NacosServiceRegistry nacosServiceRegistry(
-			NacosDiscoveryProperties nacosDiscoveryProperties) {
-		return new NacosServiceRegistry(nacosDiscoveryProperties);
-	}
+    @Bean
+    public NacosServiceRegistry nacosServiceRegistry(
+            NacosDiscoveryProperties nacosDiscoveryProperties) {
+        return new NacosServiceRegistry(nacosDiscoveryProperties);
+    }
 
-	@Bean
-	@ConditionalOnBean(AutoServiceRegistrationProperties.class)
-	public NacosRegistration nacosRegistration(
-			NacosDiscoveryProperties nacosDiscoveryProperties,
-			ApplicationContext context) {
-		return new NacosRegistration(nacosDiscoveryProperties, context);
-	}
+    @Bean
+    @ConditionalOnBean(AutoServiceRegistrationProperties.class)
+    public NacosRegistration nacosRegistration(
+            NacosDiscoveryProperties nacosDiscoveryProperties,
+            ApplicationContext context) {
+        return new NacosRegistration(nacosDiscoveryProperties, context);
+    }
 
-	@Bean
-	@ConditionalOnBean(AutoServiceRegistrationProperties.class)
-	public NacosAutoServiceRegistration nacosAutoServiceRegistration(
-			NacosServiceRegistry registry,
-			AutoServiceRegistrationProperties autoServiceRegistrationProperties,
-			NacosRegistration registration) {
-		return new NacosAutoServiceRegistration(registry,
-				autoServiceRegistrationProperties, registration);
-	}
+    @Bean
+    @ConditionalOnBean(AutoServiceRegistrationProperties.class)
+    public NacosAutoServiceRegistration nacosAutoServiceRegistration(
+            NacosServiceRegistry registry,
+            AutoServiceRegistrationProperties autoServiceRegistrationProperties,
+            NacosRegistration registration) {
+        return new NacosAutoServiceRegistration(registry,
+                autoServiceRegistrationProperties, registration);
+    }
 }
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