diff --git a/spring-cloud-tencent-examples/polaris-config-data-example/src/main/java/com/tencent/cloud/polaris/config/example/ConfigController.java b/spring-cloud-tencent-examples/polaris-config-data-example/src/main/java/com/tencent/cloud/polaris/config/example/ConfigController.java
index 388ce2d13..d06a732e3 100644
--- a/spring-cloud-tencent-examples/polaris-config-data-example/src/main/java/com/tencent/cloud/polaris/config/example/ConfigController.java
+++ b/spring-cloud-tencent-examples/polaris-config-data-example/src/main/java/com/tencent/cloud/polaris/config/example/ConfigController.java
@@ -21,7 +21,6 @@ import org.springframework.beans.factory.annotation.Value;
 import org.springframework.cloud.context.config.annotation.RefreshScope;
 import org.springframework.core.env.Environment;
 import org.springframework.web.bind.annotation.GetMapping;
-import org.springframework.web.bind.annotation.RequestMapping;
 import org.springframework.web.bind.annotation.RestController;
 
 /**
diff --git a/spring-cloud-tencent-examples/polaris-config-data-example/src/main/java/com/tencent/cloud/polaris/config/example/PersonConfigChangeListener.java b/spring-cloud-tencent-examples/polaris-config-data-example/src/main/java/com/tencent/cloud/polaris/config/example/PersonConfigChangeListener.java
index 8c97850ae..b0efd8b36 100644
--- a/spring-cloud-tencent-examples/polaris-config-data-example/src/main/java/com/tencent/cloud/polaris/config/example/PersonConfigChangeListener.java
+++ b/spring-cloud-tencent-examples/polaris-config-data-example/src/main/java/com/tencent/cloud/polaris/config/example/PersonConfigChangeListener.java
@@ -18,11 +18,12 @@
 
 package com.tencent.cloud.polaris.config.example;
 
+import java.util.Set;
+
 import com.tencent.cloud.polaris.config.annotation.PolarisConfigKVFileChangeListener;
 import com.tencent.cloud.polaris.config.listener.ConfigChangeEvent;
-import org.springframework.stereotype.Component;
 
-import java.util.Set;
+import org.springframework.stereotype.Component;
 
 /**
  * Custom Config Listener Example .