diff --git a/jsowell-netty/src/main/java/com/jsowell/netty/server/yunkuaichong/NettyServerHandler.java b/jsowell-netty/src/main/java/com/jsowell/netty/server/yunkuaichong/NettyServerHandler.java
index 72f0339bf..e74a2d7d0 100644
--- a/jsowell-netty/src/main/java/com/jsowell/netty/server/yunkuaichong/NettyServerHandler.java
+++ b/jsowell-netty/src/main/java/com/jsowell/netty/server/yunkuaichong/NettyServerHandler.java
@@ -20,7 +20,6 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
 import java.net.InetSocketAddress;
-import java.util.Collection;
 import java.util.List;
 import java.util.Objects;
 import java.util.concurrent.ConcurrentHashMap;
@@ -41,7 +40,7 @@ public class NettyServerHandler extends ChannelInboundHandlerAdapter {
 	 */
 	private static final ConcurrentHashMap<ChannelId, ChannelHandlerContext> CHANNEL_MAP = new ConcurrentHashMap<>();
 
-	private final List<String> notPrintFrameTypeList = Lists.newArrayList(""); // "0x03"
+	private final List<String> notPrintFrameTypeList = Lists.newArrayList("0x03"); // "0x03"
 
 	/**
 	 * 有客户端连接服务器会触发此函数
@@ -333,4 +332,4 @@ public class NettyServerHandler extends ChannelInboundHandlerAdapter {
 			PileChannelEntity.removeByPileSn(pileSn);
 		}
 	}
-}
\ No newline at end of file
+}