app/src/main/java/com/example/agvcontroller/socket/NettyServerHandler.java
@@ -77,9 +77,8 @@ return data; } public static void sendMessageToClient(String clientId, Object message) { public static void sendMessageToClient(String clientId, byte[] message) { Channel channel = channelMap.get(clientId); if (channel != null && channel.isActive()) { ByteBuf buf = Unpooled.wrappedBuffer(message); String upperCase = ByteBufUtil.hexDump(buf).toUpperCase();