fix: TCP脚本响应内容为空引起的异常修复

@@ -297,7 +297,7 @@ public class TcpTransportHandler extends ChannelInboundHandlerAdapter implements
 
         if (DataConstants.PROVISION.equals(accessToken) || DataConstants.PROVISION.equals(accessToken)) {
             deviceSessionCtx.setProvisionOnly(true);
-            ctx.writeAndFlush(createTcpConnAckMsg(CONNECTION_ACCEPTED.name()));
+            pushDeviceMsg(ctx,CONNECTION_ACCEPTED.name());
         } else {
             TkScriptInvokeService.authScripts.forEach(id -> {
                 ListenableFuture item = context.getJsEngine().invokeFunction(id, accessToken);
@@ -347,9 +347,7 @@ public class TcpTransportHandler extends ChannelInboundHandlerAdapter implements
     }
 
 
-    private ByteBuf createTcpConnAckMsg(String msg) {
-        return Unpooled.copiedBuffer(ByteUtils.getBytes(msg, ByteUtils.UTF_8));
-    }
+
 
     @Override
     public void channelReadComplete(ChannelHandlerContext ctx) {
@@ -450,7 +448,7 @@ public class TcpTransportHandler extends ChannelInboundHandlerAdapter implements
                 public void onSuccess(Void msg) {
                     SessionMetaData sessionMetaData = transportService.registerAsyncSession(deviceSessionCtx.getSessionInfo(), TcpTransportHandler.this);
                     checkGatewaySession(sessionMetaData);
-                    ctx.writeAndFlush(createTcpConnAckMsg(authEntry.getSuccess()));
+                    pushDeviceMsg(ctx,authEntry.getSuccess());
                     deviceSessionCtx.setConnected(true);
                     log.debug("[{}] Client connected!", sessionId);
 
@@ -474,7 +472,8 @@ public class TcpTransportHandler extends ChannelInboundHandlerAdapter implements
     private void onValidateFailed(ChannelHandlerContext ctx, MqttConnectReturnCode msg) {
         authedCounter.incrementAndGet();
         if (TkScriptInvokeService.authScripts.size() == authedCounter.intValue()) {
-            ctx.writeAndFlush(createTcpConnAckMsg(msg.name()));
+            pushDeviceMsg(ctx,msg.name());
+
             ctx.close();
         }
     }