/*打印下行报文16进制字符串*/

src/main/java/com/inspect/tcpserver/tcp/NettyServerHandler.java

@@ -2,6 +2,7 @@ package com.inspect.tcpserver.tcp;
 
 import com.inspect.tcpserver.util.Color;
 import io.netty.buffer.ByteBuf;
+import io.netty.buffer.ByteBufUtil;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.ChannelFuture;
 import io.netty.channel.ChannelHandlerContext;
@@ -22,6 +23,11 @@ public class NettyServerHandler extends ChannelInboundHandlerAdapter {
     public void sendMsg(String uuid, String clientKey, ByteBuf byteBuf, String xml, boolean request) {
         ChannelHandlerContext ctx = ChannelCache.getInstance().get(clientKey);
         if(ctx != null) {
+            // 打印下行报文
+            ByteBuf forPrint = byteBuf.copy();
+            log.info("WRITE_AND_FLUSH SESSION :{}, CLIENT: {}, HEX: {}", uuid, ctx.channel().id().asShortText(), ByteBufUtil.hexDump(forPrint));
+            forPrint.release();
+
             ctx.writeAndFlush(Unpooled.wrappedBuffer(byteBuf)).addListener(
                     (ChannelFuture future) -> {
                         if (future.isSuccess()) {