diff --git a/quickjs/src/main/java/com/fongmi/quickjs/method/Global.java b/quickjs/src/main/java/com/fongmi/quickjs/method/Global.java
index 3442f1622..75ef88526 100644
--- a/quickjs/src/main/java/com/fongmi/quickjs/method/Global.java
+++ b/quickjs/src/main/java/com/fongmi/quickjs/method/Global.java
@@ -21,7 +21,9 @@ import com.whl.quickjs.wrapper.QuickJSContext;
 import java.io.IOException;
 import java.lang.reflect.Method;
 import java.net.URLEncoder;
+import java.nio.ByteBuffer;
 import java.nio.charset.CharacterCodingException;
+import java.nio.charset.Charset;
 import java.util.Timer;
 import java.util.TimerTask;
 import java.util.concurrent.ExecutorService;
@@ -151,8 +153,8 @@ public class Global {
 
     @Keep
     @JSMethod
-    public String gbkDecode(JSArray buffer) throws CharacterCodingException {
-        String result = JSUtil.decodeTo("GB2312", buffer);
+    public String gbkDecode(byte[] buffer) throws CharacterCodingException {
+        String result = Charset.forName("GB2312").newDecoder().decode(ByteBuffer.wrap(buffer)).toString();
         Logger.t("gbkDecode").d("text:%s\nresult:\n%s", buffer, result);
         return result;
     }
diff --git a/quickjs/src/main/java/com/fongmi/quickjs/utils/JSUtil.java b/quickjs/src/main/java/com/fongmi/quickjs/utils/JSUtil.java
index 033b858cc..545174aa7 100644
--- a/quickjs/src/main/java/com/fongmi/quickjs/utils/JSUtil.java
+++ b/quickjs/src/main/java/com/fongmi/quickjs/utils/JSUtil.java
@@ -4,9 +4,6 @@ import com.whl.quickjs.wrapper.JSArray;
 import com.whl.quickjs.wrapper.JSObject;
 import com.whl.quickjs.wrapper.QuickJSContext;
 
-import java.nio.ByteBuffer;
-import java.nio.charset.CharacterCodingException;
-import java.nio.charset.Charset;
 import java.util.List;
 import java.util.Map;
 
@@ -25,10 +22,4 @@ public class JSUtil {
         for (String s : map.keySet()) obj.setProperty(s, map.get(s));
         return obj;
     }
-
-    public static String decodeTo(String charset, JSArray buffer) throws CharacterCodingException {
-        byte[] bytes = new byte[buffer.length()];
-        for (int i = 0; i < buffer.length(); i++) bytes[i] = (byte) (int) buffer.get(i);
-        return Charset.forName(charset).newDecoder().decode(ByteBuffer.wrap(bytes)).toString();
-    }
 }