[update] channel缓存

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

@@ -45,6 +45,9 @@ public class NettyServer {
                     protected void initChannel(NioDatagramChannel datagramChannel) {
                         datagramChannel.pipeline()
                                 .addLast(new NettyServerHandler(threadPoolExecutor));
+                        String key = StringUtils.join(datagramChannel.remoteAddress().getHostString(), ":".intern(), datagramChannel.remoteAddress().getPort());
+                        log.info("client {} is connect success", key);
+                        IP_PORT_CHANNEL_ID_MAP.put(key, datagramChannel.id());
                     }
                 });
         ChannelFuture channelFuture = bootstrap.bind(port).sync();