diff --git a/app/build.gradle b/app/build.gradle
index 318468e..0a2766c 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -11,7 +11,7 @@ android {
         minSdk 28
         targetSdk 28
         versionCode 1
-        versionName "2.1"
+        versionName "2.2"
 
         // 1.0 IDATA广播模式处理
         // 1.1 霍尼韦尔的监听修改（扫描网站二维码跳出程序，监听失效，调整）、斑马PDA广播模式设置
@@ -34,6 +34,7 @@ android {
         // 1.18 瑞兴平板，读取扫描结果，使用同步加锁模式
         // 1.19 index页面接入初始化数据
         // 2.1 注册PDA的信息存储到文件内部，采取mac+固定加密串的MD5加密校验
+        // 2.2 安卓14以上，无法获取mac地址，修改成获取唯一id作为mac地址
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         ndk {
             abiFilters 'armeabi-v7a'
diff --git a/app/src/main/java/chaoran/business/utils/LocalAddressUtil.java b/app/src/main/java/chaoran/business/utils/LocalAddressUtil.java
index 2e19bfb..853f35b 100644
--- a/app/src/main/java/chaoran/business/utils/LocalAddressUtil.java
+++ b/app/src/main/java/chaoran/business/utils/LocalAddressUtil.java
@@ -1,11 +1,16 @@
 package chaoran.business.utils;
 
+import static androidx.core.content.ContextCompat.getSystemService;
+
 import android.annotation.SuppressLint;
 import android.app.Activity;
 import android.content.Context;
 import android.content.SharedPreferences;
 import android.content.pm.ActivityInfo;
+import android.net.wifi.WifiInfo;
+import android.net.wifi.WifiManager;
 import android.os.Build;
+import android.provider.Settings;
 import android.util.Log;
 import android.view.Surface;
 import android.view.View;
@@ -62,6 +67,14 @@ public class LocalAddressUtil {
     @SuppressLint("JavascriptInterface")
     @JavascriptInterface
     public String getMacAddress(){//可以兼容安卓7以下
+        if (Build.VERSION.SDK_INT >= 34) { // Android 14 is code-named Tiramisu
+            try {
+                return Settings.Secure.getString(context.getContentResolver(), Settings.Secure.ANDROID_ID);
+            }catch (Exception e) {
+                e.printStackTrace();
+                return "02:00:00:00:00:02";
+            }
+        }
         String macAddress = null;
         StringBuffer buf = new StringBuffer();
         NetworkInterface networkInterface = null;