Java NioEventLoopGroup类代码示例

import io.netty.channel.nio.NioEventLoopGroup; //导入依赖的package包/类
private NettyServer(){
	pGroup = new NioEventLoopGroup();
	cGroup = new NioEventLoopGroup();
	serverBootstrap = new ServerBootstrap();
	serverBootstrap.group(pGroup, cGroup)
	 .channel(NioServerSocketChannel.class)
	 .option(ChannelOption.SO_BACKLOG, 1024)
	 //设置日志
	 .handler(new LoggingHandler(LogLevel.INFO))
	 .childHandler(new ChannelInitializer<SocketChannel>() {
		protected void initChannel(SocketChannel sc) throws Exception {
			sc.pipeline().addLast(MarshallingCodeCFactory.buildMarshallingDecoder());
			sc.pipeline().addLast(MarshallingCodeCFactory.buildMarshallingEncoder());
			sc.pipeline().addLast(new ReadTimeoutHandler(60));
			sc.pipeline().addLast(new NettyServerHandler());
		}
	});		
}
 

import io.netty.channel.nio.NioEventLoopGroup; //导入依赖的package包/类
public void start(){
	logger.debug( "--Socket Server will start------------" ) ;
	boss = new NioEventLoopGroup() ;
	work = new NioEventLoopGroup() ;
	int port = CommonConfig.getInteger( SOCKET_PORT1 );
	try {
		
		logger.info( "Netty Server[" + port + "] started..." ) ;
		ServerBootstrap b = new ServerBootstrap() ;

		b.group( boss , work ) ;
		b.channel( NioServerSocketChannel.class ) ;
		b.childHandler( nettyInitializer ) ;
		b.bind( port ).sync().channel().closeFuture().sync() ;
	} catch ( Exception e ) {
		String err_string = e.toString();
		if( err_string.indexOf( "childHandler" ) != -1 ){
			logger.error( "Netty Server[" + port + "] NettyInitializer can't find." ) ;
		}else{
			logger.error( "Netty Server[" + port + "] onload err:" + e.toString() , e  ) ;
		}
	} finally {
		logger.error( "Netty Server[" + port + "] will be unload..."  ) ;
		unload();
	}
}
 

import io.netty.channel.nio.NioEventLoopGroup; //导入依赖的package包/类
public void start() throws Exception {
	EventLoopGroup group = new NioEventLoopGroup();
	try {
		Bootstrap b = new Bootstrap();
		b.group(group)
				.channel(NioSocketChannel.class)
				.remoteAddress(new InetSocketAddress(this.host, this.port))
				.handler(new ChannelInitializer<SocketChannel>() {
					@Override
					protected void initChannel(SocketChannel ch) throws Exception {
						System.out.println("connected server...");
						ch.pipeline().addLast(new ByteArrayEncoder());
						ch.pipeline().addLast(new ByteArrayDecoder());
						ch.pipeline().addLast(new EchoClientHandler());
					}
				});

		ChannelFuture cf = b.connect().sync();

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

import io.netty.channel.nio.NioEventLoopGroup; //导入依赖的package包/类
public void start(SlaveNode slaveNode) {
    if(slaveNode==null){
        throw new IllegalArgumentException("slaveNode is null");
    }
    EventLoopGroup bossGroup = new NioEventLoopGroup(CommonConstants.BOSS_GROUP_SIZE, new DefaultThreadFactory("boss", true));
    EventLoopGroup workerGroup = new NioEventLoopGroup(CommonConstants.WORKER_GROUP_SIZE, new DefaultThreadFactory("worker", true));
    try {
        ServerBootstrap b = new ServerBootstrap();
        b.option(ChannelOption.SO_BACKLOG, 1024);
        b.group(bossGroup, workerGroup)
         .channel(NioServerSocketChannel.class)
         .handler(new LoggingHandler(LogLevel.INFO))
         .childHandler(new SlaveServerInitializer());

        ChannelFuture future = b.bind(slaveNode.getPort()).sync();
        LOGGER.info("SlaveServer Startup at port:{}",slaveNode.getPort());

        // 等待服务端Socket关闭
        future.channel().closeFuture().sync();
    } catch (InterruptedException e) {
        LOGGER.error("InterruptedException:",e);
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}
 

import io.netty.channel.nio.NioEventLoopGroup; //导入依赖的package包/类
public void start() {
    EventLoopGroup bossGroup = new NioEventLoopGroup(CommonConstants.BOSS_GROUP_SIZE, new DefaultThreadFactory("boss", true));
    EventLoopGroup workerGroup = new NioEventLoopGroup(CommonConstants.WORKER_GROUP_SIZE, new DefaultThreadFactory("worker", true));
    try {
        ServerBootstrap b = new ServerBootstrap();
        b.option(ChannelOption.SO_BACKLOG, 1024);
        b.group(bossGroup, workerGroup)
         .channel(NioServerSocketChannel.class)
         .handler(new LoggingHandler(LogLevel.INFO))
         .childHandler(new MasterServerInitializer());

        ChannelFuture future = b.bind(CommonConstants.SERVER_PORT).sync();
        LOGGER.info("MasterServer Startup at port:{}",CommonConstants.SERVER_PORT);

        // 等待服务端Socket关闭
        future.channel().closeFuture().sync();
    } catch (InterruptedException e) {
        LOGGER.error("InterruptedException:",e);
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}
 

import io.netty.channel.nio.NioEventLoopGroup; //导入依赖的package包/类
public void start() {
    EventLoopGroup bossGroup = new NioEventLoopGroup(CommonConstants.BOSS_GROUP_SIZE, new DefaultThreadFactory("boss", true));
    EventLoopGroup workerGroup = new NioEventLoopGroup(CommonConstants.WORKER_GROUP_SIZE, new DefaultThreadFactory("worker", true));
    try {
        ServerBootstrap b = new ServerBootstrap();
        b.option(ChannelOption.SO_BACKLOG, 1024);
        b.group(bossGroup, workerGroup)
         .channel(NioServerSocketChannel.class)
         .handler(new LoggingHandler(LogLevel.INFO))
         .childHandler(new ServerInitializer());

        ChannelFuture future = b.bind(CommonConstants.SERVER_PORT).sync();
        logger.info("NettyServer Startup at port:{}",CommonConstants.SERVER_PORT);

        // 等待服务端Socket关闭
        future.channel().closeFuture().sync();
    } catch (InterruptedException e) {
        logger.error("InterruptedException:",e);
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}
 

import io.netty.channel.nio.NioEventLoopGroup; //导入依赖的package包/类
public void init() throws SyncException {
    cg = new DefaultChannelGroup("Cluster Bootstrap", GlobalEventExecutor.INSTANCE);

    workerExecutor = new NioEventLoopGroup();
    timer = new HashedWheelTimer();
    
    bootstrap = new Bootstrap()
    .group(workerExecutor)
    .channel(NioSocketChannel.class)
    .option(ChannelOption.SO_REUSEADDR, true)
    .option(ChannelOption.SO_KEEPALIVE, true)
    .option(ChannelOption.TCP_NODELAY, true)
    .option(ChannelOption.SO_SNDBUF, RPCService.SEND_BUFFER_SIZE)
    .option(ChannelOption.SO_RCVBUF, RPCService.SEND_BUFFER_SIZE)
    .option(ChannelOption.CONNECT_TIMEOUT_MILLIS, RPCService.CONNECT_TIMEOUT);
    
    pipelineFactory = new BootstrapChannelInitializer(timer, this);
    bootstrap.handler(pipelineFactory);
}
 

import io.netty.channel.nio.NioEventLoopGroup; //导入依赖的package包/类
public static void main(String[] args) throws Exception {
	EventLoopGroup bossGroup = new NioEventLoopGroup();
       EventLoopGroup workerGroup = new NioEventLoopGroup();
       
       try{
           ServerBootstrap serverBootstrap = new ServerBootstrap();
           serverBootstrap.group(bossGroup,workerGroup)
           		.channel(NioServerSocketChannel.class)
           		.childHandler(new HttpServer());
           ChannelFuture channelFuture = serverBootstrap
           		.bind(new InetSocketAddress("0.0.0.0", PORT))
           		.sync();
           channelFuture.channel().closeFuture().sync();
       } finally {
           bossGroup.shutdownGracefully();
           workerGroup.shutdownGracefully();
       }
}
 

import io.netty.channel.nio.NioEventLoopGroup; //导入依赖的package包/类
public void start(String ip, int port) throws Exception {
	// Configure SSL.
	final SslContext sslCtx;
	if (SSL) {
		sslCtx = SslContextBuilder.forClient().trustManager(InsecureTrustManagerFactory.INSTANCE).build();
	} else {
		sslCtx = null;
	}
	EventLoopGroup group = new NioEventLoopGroup();
	try {
		Bootstrap b = new Bootstrap();
		b.group(group).channel(NioSocketChannel.class).handler(new FileClientInitializer(sslCtx));
		Channel ch = b.connect(ip, port).sync().channel();
		ConfigurationContext.propMap.putIfAbsent(SOCKET_CHANNEL, ch);			
	}catch(Exception e){
		e.printStackTrace();
	}
}
 

import io.netty.channel.nio.NioEventLoopGroup; //导入依赖的package包/类
public Future startAsync() {
    bossGroup = new NioEventLoopGroup(1);
    workerGroup = new NioEventLoopGroup();
    bootstrap = new ServerBootstrap();
    bootstrap.group(bossGroup, workerGroup)
             .channel(NioServerSocketChannel.class)
             .childHandler(new SocksServerInitializer())
             .childAttr(OPTION_ATTRIBUTE_KEY, option);

    return bootstrap.bind(option.getLocalHost(), option.getLocalPort()).addListener(
            new ChannelFutureListener() {
                @Override
                public void operationComplete(ChannelFuture future) throws Exception {
                    if (infoEnable) {
                        if (future.isSuccess()) {
                            logger.info("Listening on local port {}", option.getLocalPort());
                        } else {
                            logger.info("Shadowsocks client startup failed", future.cause());
                        }
                    }
                }
            });
}
 

import io.netty.channel.nio.NioEventLoopGroup; //导入依赖的package包/类
private RemotingNettyClient(final NettyClientConfig nettyClientConfig) {
    super(nettyClientConfig.getOnewaySemaphoreValue(), nettyClientConfig.getAsyncSemaphoreValue());
    int publicThreadNums = nettyClientConfig.getCallbackExecutorThreads();
    if (publicThreadNums <= 0) {
        publicThreadNums = 4;
    }
    this.publicExecutor = Executors.newFixedThreadPool(publicThreadNums, new ThreadFactory() {
        private AtomicInteger threadIndex = new AtomicInteger(0);

        @Override
        public Thread newThread(Runnable r) {
            return new Thread(r, "NettyClientPublicExecutor_" + this.threadIndex.incrementAndGet());
        }
    });

    group = new NioEventLoopGroup(nettyClientConfig.getWorkerThreads(), new CustomThreadFactory("client"));

    start();
}
 

import io.netty.channel.nio.NioEventLoopGroup; //导入依赖的package包/类
public UDPServerSocket(ThreadedLogger logger, int port, String interfaz) {
    this.logger = logger;
    try {
        bootstrap = new Bootstrap();
        group = new NioEventLoopGroup();
        bootstrap
                .group(group)
                .channel(NioDatagramChannel.class)
                .handler(this);
        channel = bootstrap.bind(interfaz, port).sync().channel();
    } catch (Exception e) {
        this.logger.critical("**** FAILED TO BIND TO " + interfaz + ":" + port + "!");
        this.logger.critical("Perhaps a server is already running on that port?");
        System.exit(1);
    }
}
 

import io.netty.channel.nio.NioEventLoopGroup; //导入依赖的package包/类
/**
 * Start the server
 *
 * @param port The port on which the server listen to
 */
public void run(final int port) {
    final EventLoopGroup bossGroup = new NioEventLoopGroup();
    final EventLoopGroup workerGroup = new NioEventLoopGroup();

    try {
        final ServerBootstrap bootstrap = new ServerBootstrap()
                .group(bossGroup, workerGroup)
                .channel(NioServerSocketChannel.class)
                .childHandler(new ServerInitializer())
                .childOption(ChannelOption.SO_KEEPALIVE, true)
                .childOption(ChannelOption.TCP_NODELAY, true);

        final ChannelFuture f = bootstrap.bind(port).sync();
        LOGGER.info("NettyServer: running on port {}", port);

        f.channel().closeFuture().sync();
    } catch (final InterruptedException e) {
        LOGGER.error("NettyServer: an error occurred while running: {}", e.getMessage());
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}
 

import io.netty.channel.nio.NioEventLoopGroup; //导入依赖的package包/类
public void run() {
	workerGroup = new NioEventLoopGroup();
	try {
		Bootstrap b = new Bootstrap();
		b.group(workerGroup);
		b.channel(NioSocketChannel.class);
		// b.option(ChannelOption.SO_KEEPALIVE, true);
		b.handler(new ChannelInitializer<SocketChannel>() {
			@Override
			public void initChannel(SocketChannel ch) throws Exception {
				ChannelPipeline pipeline = ch.pipeline();
				pipeline.addLast("frameDecoder", new LengthFieldBasedFrameDecoder(65536, 0, 4, 0, 4));
				pipeline.addLast("frameEncoder", new LengthFieldPrepender(4));
				pipeline.addLast("decoder", new MsgPackDecode());
				pipeline.addLast("encoder", new MsgPackEncode());
				pipeline.addLast(new ClientHandler());
			}
		});
		channel = b.connect(clientProperties.getServerHost(), clientProperties.getServerPort()).sync().channel();
		status = Status.START;
		channel.closeFuture().sync();
	} catch (Exception e) {
		e.printStackTrace();
	}
	status = Status.STOP;
}
 

import io.netty.channel.nio.NioEventLoopGroup; //导入依赖的package包/类
public void start(String hostName, int port) {
    Executors.newSingleThreadExecutor().submit(() -> {
        group = new NioEventLoopGroup();
        Bootstrap bootstrap = new Bootstrap();
        bootstrap.group(group)
                .channel(NioSocketChannel.class)
                .handler(new KyChannelInitializer());
        if (hostName != null && !hostName.equals(""))
            bootstrap.remoteAddress(new InetSocketAddress(hostName, port));
        else
            bootstrap.remoteAddress(new InetSocketAddress(port));
        ChannelFuture channelFuture = null;

        try {
            channelFuture = bootstrap.connect().sync();
        } catch (InterruptedException e) {
            e.printStackTrace();
        }

        startListenerHandle(channelFuture, launchListener);
    });
}