diff --git a/xxl-job-core/src/main/java/com/xxl/job/core/util/NetUtil.java b/xxl-job-core/src/main/java/com/xxl/job/core/util/NetUtil.java
index 118a0fa5..a10b17be 100644
--- a/xxl-job-core/src/main/java/com/xxl/job/core/util/NetUtil.java
+++ b/xxl-job-core/src/main/java/com/xxl/job/core/util/NetUtil.java
@@ -53,7 +53,7 @@ public class NetUtil {
             serverSocket = new ServerSocket(port);
             used = false;
         } catch (IOException e) {
-            logger.info(">>>>>>>>>>> xxl-job, port[{}] is in use.", port);
+            logger.debug(">>>>>>>>>>> xxl-job, port[{}] is in use.", port);
             used = true;
         } finally {
             if (serverSocket != null) {
diff --git a/xxl-job-executor-samples/xxl-job-executor-sample-springboot/src/main/resources/application.properties b/xxl-job-executor-samples/xxl-job-executor-sample-springboot/src/main/resources/application.properties
index 497c4299..a12408ac 100644
--- a/xxl-job-executor-samples/xxl-job-executor-sample-springboot/src/main/resources/application.properties
+++ b/xxl-job-executor-samples/xxl-job-executor-sample-springboot/src/main/resources/application.properties
@@ -11,7 +11,7 @@ xxl.job.admin.addresses=http://127.0.0.1:8080/xxl-job-admin
 ### xxl-job executor address
 xxl.job.executor.appname=xxl-job-executor-sample
 xxl.job.executor.ip=
-xxl.job.executor.port=9998
+xxl.job.executor.port=-1
 
 ### xxl-job log path
 xxl.job.executor.logpath=/data/applogs/xxl-job/jobhandler/