diff --git a/spring-cloud-starter-tencent-polaris-router/src/main/java/com/tencent/cloud/polaris/router/feign/PolarisFeignLoadBalancer.java b/spring-cloud-starter-tencent-polaris-router/src/main/java/com/tencent/cloud/polaris/router/feign/PolarisFeignLoadBalancer.java
index 102ea72f8..273be0fd5 100644
--- a/spring-cloud-starter-tencent-polaris-router/src/main/java/com/tencent/cloud/polaris/router/feign/PolarisFeignLoadBalancer.java
+++ b/spring-cloud-starter-tencent-polaris-router/src/main/java/com/tencent/cloud/polaris/router/feign/PolarisFeignLoadBalancer.java
@@ -30,12 +30,12 @@ import org.springframework.cloud.netflix.ribbon.ServerIntrospector;
 import org.springframework.cloud.openfeign.ribbon.FeignLoadBalancer;
 import org.springframework.util.CollectionUtils;
 
-import java.io.UnsupportedEncodingException;
 import java.net.URLDecoder;
 import java.nio.charset.StandardCharsets;
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.Map;
+import java.io.UnsupportedEncodingException;
 
 /**
  * In order to pass router context for {@link com.tencent.cloud.polaris.router.PolarisLoadBalancerCompositeRule}.
diff --git a/spring-cloud-starter-tencent-polaris-router/src/main/java/com/tencent/cloud/polaris/router/feign/RouterLabelFeignInterceptor.java b/spring-cloud-starter-tencent-polaris-router/src/main/java/com/tencent/cloud/polaris/router/feign/RouterLabelFeignInterceptor.java
index b9ea01492..e39c99b55 100644
--- a/spring-cloud-starter-tencent-polaris-router/src/main/java/com/tencent/cloud/polaris/router/feign/RouterLabelFeignInterceptor.java
+++ b/spring-cloud-starter-tencent-polaris-router/src/main/java/com/tencent/cloud/polaris/router/feign/RouterLabelFeignInterceptor.java
@@ -33,7 +33,6 @@ import org.slf4j.LoggerFactory;
 import org.springframework.core.Ordered;
 import org.springframework.util.CollectionUtils;
 
-import java.io.UnsupportedEncodingException;
 import java.net.URLEncoder;
 import java.nio.charset.StandardCharsets;
 import java.util.Collections;
@@ -42,6 +41,7 @@ import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Set;
+import java.io.UnsupportedEncodingException;
 
 /**
  * Resolver labels from request.