diff --git a/net/src/main/java/com/zfoo/net/handler/codec/json/JsonPacket.java b/net/src/main/java/com/zfoo/net/handler/codec/json/JsonPacket.java
index 122659a1..202ed623 100644
--- a/net/src/main/java/com/zfoo/net/handler/codec/json/JsonPacket.java
+++ b/net/src/main/java/com/zfoo/net/handler/codec/json/JsonPacket.java
@@ -13,6 +13,7 @@
 
 package com.zfoo.net.handler.codec.json;
 
+import com.zfoo.net.router.attachment.IAttachment;
 import com.zfoo.protocol.IPacket;
 
 /**
@@ -23,12 +24,18 @@ public class JsonPacket {
 
     private short protocolId;
 
-    private IPacket packet;
+    private short attachmentId;
 
-    public static JsonPacket valueOf(short protocolId, IPacket packet) {
+    private IPacket packet;
+    private IAttachment attachment;
+
+
+    public static JsonPacket valueOf(short protocolId, IPacket packet, short attachmentId, IAttachment attachment) {
         var jsonPacket = new JsonPacket();
         jsonPacket.protocolId = protocolId;
+        jsonPacket.attachmentId = attachmentId;
         jsonPacket.packet = packet;
+        jsonPacket.attachment = attachment;
         return jsonPacket;
     }
 
@@ -47,4 +54,20 @@ public class JsonPacket {
     public void setPacket(IPacket packet) {
         this.packet = packet;
     }
+
+    public short getAttachmentId() {
+        return attachmentId;
+    }
+
+    public void setAttachmentId(short attachmentId) {
+        this.attachmentId = attachmentId;
+    }
+
+    public IAttachment getAttachment() {
+        return attachment;
+    }
+
+    public void setAttachment(IAttachment attachment) {
+        this.attachment = attachment;
+    }
 }
diff --git a/net/src/main/java/com/zfoo/net/handler/codec/json/JsonWebSocketCodecHandler.java b/net/src/main/java/com/zfoo/net/handler/codec/json/JsonWebSocketCodecHandler.java
index 97da57a4..d5120e11 100644
--- a/net/src/main/java/com/zfoo/net/handler/codec/json/JsonWebSocketCodecHandler.java
+++ b/net/src/main/java/com/zfoo/net/handler/codec/json/JsonWebSocketCodecHandler.java
@@ -15,6 +15,7 @@ package com.zfoo.net.handler.codec.json;
 
 import com.zfoo.net.packet.DecodedPacketInfo;
 import com.zfoo.net.packet.EncodedPacketInfo;
+import com.zfoo.net.router.attachment.IAttachment;
 import com.zfoo.protocol.IPacket;
 import com.zfoo.protocol.ProtocolManager;
 import com.zfoo.protocol.buffer.ByteBufUtils;
@@ -41,9 +42,15 @@ public class JsonWebSocketCodecHandler extends MessageToMessageCodec<WebSocketFr
         var jsonMap = JsonUtils.getJsonMap(jsonStr);
         var protocolId = Short.parseShort(jsonMap.get("protocolId"));
         var packetStr = jsonMap.get("packet");
+        var attachmentId = Short.parseShort(jsonMap.get("attachmentId"));
+        IAttachment attachment = null;
+        if (attachmentId >= 0) {
+            var attachmentClass = ProtocolManager.getProtocol(attachmentId).protocolConstructor().getDeclaringClass();
+            attachment = (IAttachment) JsonUtils.string2Object(jsonMap.get("attachment"), attachmentClass);
+        }
         var protocolClass = ProtocolManager.getProtocol(protocolId).protocolConstructor().getDeclaringClass();
         var packet = JsonUtils.string2Object(packetStr, protocolClass);
-        list.add(DecodedPacketInfo.valueOf((IPacket) packet, null));
+        list.add(DecodedPacketInfo.valueOf((IPacket) packet, attachment));
     }
 
     @Override
@@ -51,7 +58,8 @@ public class JsonWebSocketCodecHandler extends MessageToMessageCodec<WebSocketFr
         var byteBuf = channelHandlerContext.alloc().ioBuffer();
 
         var packet = out.getPacket();
-        var jsonPacket = JsonPacket.valueOf(packet.protocolId(), packet);
+        var attachmentId = out.getAttachment() == null ? -1 : out.getAttachment().protocolId();
+        var jsonPacket = JsonPacket.valueOf(packet.protocolId(), packet, attachmentId, out.getAttachment());
         var bytes = StringUtils.bytes(JsonUtils.object2String(jsonPacket));
         byteBuf.writeBytes(bytes);
 
diff --git a/net/src/main/java/com/zfoo/net/router/attachment/SignalAttachment.java b/net/src/main/java/com/zfoo/net/router/attachment/SignalAttachment.java
index d4c9e457..783ae964 100644
--- a/net/src/main/java/com/zfoo/net/router/attachment/SignalAttachment.java
+++ b/net/src/main/java/com/zfoo/net/router/attachment/SignalAttachment.java
@@ -12,6 +12,7 @@
 
 package com.zfoo.net.router.attachment;
 
+import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.zfoo.protocol.IPacket;
 import com.zfoo.scheduler.util.TimeUtils;
 
@@ -58,6 +59,7 @@ public class SignalAttachment implements IAttachment {
      * EN:The method of callback when the client receives a reply from the server
      * CN:客户端收到服务器回复的时候回调的方法
      */
+    @JsonIgnore
     private transient CompletableFuture<IPacket> responseFuture = new CompletableFuture<>();
 
     public SignalAttachment() {