.神
  1. @Mod.EventHandler
  2.     public void onPreInit(final FMLPreInitializationEvent evt) {
  3.         MinecraftForge.EVENT_BUS.register(this);
  4.         FMLCommonHandler.instance().bus().register(this);
  5.         (channel = NetworkRegistry.INSTANCE.newEventDrivenChannel("MythicScore")).register(this);
  6.     }

  8.     @SubscribeEvent
  9.     public void onClientPacket(final FMLNetworkEvent.ClientCustomPacketEvent evt) {
  10.         System.out.println(1);
  11.         FMLLog.getLogger().info(new String(evt.getPacket().payload().array()));
  12.         Minecraft.getMinecraft().player.sendMessage(new TextComponentString(new String(evt.getPacket().payload().array())));
  13. //        if (!e.getPacket().channel().equals("MythicScore")) return;
  14.     }
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插件:
  1. public static void send(Player p, Integer rank) {
  2.         String s = String.valueOf(rank);
  3.         p.sendPluginMessage(MythicScore.getInstance(), "MythicScore", s.getBytes());
  4.     }
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耗子
你需要在服务端注册一下插件消息频道

Bukkit.getMessenger().registerOutgoingPluginChannel(this, "MythicScore");