diff --git a/util/src/main/java/com/zfoo/util/net/NetUtils.java b/util/src/main/java/com/zfoo/util/net/NetUtils.java
index 52bb3943..273fc7fd 100644
--- a/util/src/main/java/com/zfoo/util/net/NetUtils.java
+++ b/util/src/main/java/com/zfoo/util/net/NetUtils.java
@@ -114,10 +114,9 @@ public class NetUtils {
             // 给定的IP未在指定端口范围中
             return false;
         }
-        try {
-            InetAddress localHost = InetAddress.getLocalHost();
-            ServerSocket ss = new ServerSocket(port, 50, localHost);
-            ss.close();
+
+        // try-with-resources会自动调用close方法
+        try (ServerSocket ss = new ServerSocket(port)) {
             return true;
         } catch (Exception e) {
             return false;