[update] 方法权限

signal-utc-dt-service/src/main/java/net/wanji/com/netty/NettyClient.java

@@ -5,12 +5,9 @@ import cn.hutool.core.util.HexUtil;
 import io.netty.bootstrap.Bootstrap;
 import io.netty.buffer.Unpooled;
 import io.netty.channel.*;
-import io.netty.channel.group.ChannelGroup;
-import io.netty.channel.group.DefaultChannelGroup;
 import io.netty.channel.nio.NioEventLoopGroup;
 import io.netty.channel.socket.DatagramPacket;
 import io.netty.channel.socket.nio.NioDatagramChannel;
-import io.netty.util.concurrent.GlobalEventExecutor;
 import lombok.extern.slf4j.Slf4j;
 import net.wanji.com.cache.netty.NettyMessageCache;
 import net.wanji.com.netty.handler.NettyServerHandler;
@@ -33,7 +30,6 @@ import java.util.concurrent.TimeUnit;
 public class NettyClient {
 
     private static final Map<String, ChannelId> IP_PORT_CHANNEL_ID_MAP = new HashMap<>();
-    private static ChannelGroup channelGroup = new DefaultChannelGroup(GlobalEventExecutor.INSTANCE);
     private static ChannelFuture udpChannelFuture = null;
 
     /**

signal-utc-dt-service/src/main/java/net/wanji/com/netty/handler/NettyServerHandler.java

@@ -41,7 +41,7 @@ public class NettyServerHandler extends SimpleChannelInboundHandler<DatagramPack
      * @throws Exception
      */
     @Override
-    public void channelRead0(ChannelHandlerContext ctx, DatagramPacket packet) throws Exception {
+    protected void channelRead0(ChannelHandlerContext ctx, DatagramPacket packet) throws Exception {
         log.info("收到服务端包数据： {}", packet);
         ByteBuf content = packet.content();
         InetSocketAddress sender = packet.sender();