Skip to main content
Game Development

Return to Question

Bumped by Community user
Code include
Source Link
Adixe
Adixe
  • 13
  • 3

EDIT:

Server setup:

        EventLoopGroup bossGroup = new NioEventLoopGroup(1);
        EventLoopGroup workerGroup = new NioEventLoopGroup();

        try {
            ServerBootstrap bootstrap = new ServerBootstrap();
            bootstrap.group(bossGroup, workerGroup)
                    .channel(NioServerSocketChannel.class)
                    .childHandler(new ChannelInitializer<SocketChannel>() {
                        @Override
                        public void initChannel(SocketChannel socketChannel) {
                            ChannelPipeline pipeline = socketChannel.pipeline();
                            pipeline.addLast(new ObjectDecoder(Integer.MAX_VALUE, ClassResolvers.cacheDisabled(null)));
                            pipeline.addLast(new ObjectEncoder());
                            pipeline.addLast(new ServerHandler());
                        }
                    });

            ChannelFuture channelFuture = bootstrap.bind(8080).sync();

            channelFuture.channel().closeFuture().sync();
        } finally {
            bossGroup.shutdownGracefully();
            workerGroup.shutdownGracefully();
        }

Client setup:

        EventLoopGroup group = new NioEventLoopGroup();

        try {
            Bootstrap bootstrap = new Bootstrap();
            bootstrap.group(group)
                    .channel(NioSocketChannel.class)
                    .handler(new ChannelInitializer<SocketChannel>() {
                        @Override
                        public void initChannel(SocketChannel socketChannel) {
                            ChannelPipeline pipeline = socketChannel.pipeline();
                            pipeline.addLast(new ObjectDecoder(Integer.MAX_VALUE, ClassResolvers.cacheDisabled(null)));
                            pipeline.addLast(new ObjectEncoder());
                            pipeline.addLast(new ClientHandler());
                        }
                    });

            ChannelFuture channelFuture = bootstrap.connect("<SERVER IPv4>", 8080).sync();

            channelFuture.channel().closeFuture().sync();
        } finally {
            group.shutdownGracefully();
        }
```

EDIT:

Server setup:

        EventLoopGroup bossGroup = new NioEventLoopGroup(1);
        EventLoopGroup workerGroup = new NioEventLoopGroup();

        try {
            ServerBootstrap bootstrap = new ServerBootstrap();
            bootstrap.group(bossGroup, workerGroup)
                    .channel(NioServerSocketChannel.class)
                    .childHandler(new ChannelInitializer<SocketChannel>() {
                        @Override
                        public void initChannel(SocketChannel socketChannel) {
                            ChannelPipeline pipeline = socketChannel.pipeline();
                            pipeline.addLast(new ObjectDecoder(Integer.MAX_VALUE, ClassResolvers.cacheDisabled(null)));
                            pipeline.addLast(new ObjectEncoder());
                            pipeline.addLast(new ServerHandler());
                        }
                    });

            ChannelFuture channelFuture = bootstrap.bind(8080).sync();

            channelFuture.channel().closeFuture().sync();
        } finally {
            bossGroup.shutdownGracefully();
            workerGroup.shutdownGracefully();
        }

Client setup:

        EventLoopGroup group = new NioEventLoopGroup();

        try {
            Bootstrap bootstrap = new Bootstrap();
            bootstrap.group(group)
                    .channel(NioSocketChannel.class)
                    .handler(new ChannelInitializer<SocketChannel>() {
                        @Override
                        public void initChannel(SocketChannel socketChannel) {
                            ChannelPipeline pipeline = socketChannel.pipeline();
                            pipeline.addLast(new ObjectDecoder(Integer.MAX_VALUE, ClassResolvers.cacheDisabled(null)));
                            pipeline.addLast(new ObjectEncoder());
                            pipeline.addLast(new ClientHandler());
                        }
                    });

            ChannelFuture channelFuture = bootstrap.connect("<SERVER IPv4>", 8080).sync();

            channelFuture.channel().closeFuture().sync();
        } finally {
            group.shutdownGracefully();
        }
```
Source Link
Adixe
Adixe
  • 13
  • 3

Java Netty cannot connect to the server

I am creating a simple 2d multiplayer game supported by the Netty library. The server is located on my local computer. I have a problem: why are some clients unable to connect? I tested on several computers from different places connected to different networks. Virtually always everything works fine. For some reason my friend is unable to connect. What could be the reason? Others connect without any problems. I would like to add that we have the same network operator. The problematic person is the only one who has a different operator. Could it have anything to do with it? I am new to the operation between the server and the client. Why does it work for some and not for others? What are the possible reasons? I would be very grateful for your help.