diff --git a/Service/Car/Codec/Encoder.cs b/Service/Car/Codec/Encoder.cs
index f64cf63..ea80435 100644
--- a/Service/Car/Codec/Encoder.cs
+++ b/Service/Car/Codec/Encoder.cs
@@ -23,7 +23,8 @@ public class Encoder : MessageToByteEncoder<BaseMsg>
     protected override void Encode(IChannelHandlerContext context, BaseMsg obj, IByteBuffer output)
     {
         byte[] bytes = obj.ToBytes();
-        output.WriteBytes(bytes);
-        output.WriteBytes(CarConst.EndChar);
+        List<byte> list = new List<byte>(bytes);
+        list.AddRange(CarConst.EndChar);
+        output.WriteBytes(list.ToArray());
     }
 }
\ No newline at end of file
diff --git a/Service/Car/Server/CarServer.cs b/Service/Car/Server/CarServer.cs
index 15ac747..78956c4 100644
--- a/Service/Car/Server/CarServer.cs
+++ b/Service/Car/Server/CarServer.cs
@@ -37,6 +37,7 @@ public class CarServer : TcpServer<IBaseHandler, Decoder, Encoder>
     public CarServer() : base()
     {
         this.ChannelInActiveAction = Clean;
+        this.LogLevel = DotNetty.Handlers.Logging.LogLevel.TRACE;
     }
 
     /// <summary>