EchoClient.java 文件源码

public void run() throws Exception {
    NioEventLoopGroup group = new NioEventLoopGroup();
    try {
        Bootstrap b = new Bootstrap();
        b.group(group)
                .channel(NioSocketChannel.class)
                .remoteAddress(new InetSocketAddress(host, port))
                .handler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    protected void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new EchoClientHandler());
                    }
                });
        ChannelFuture f = b.connect().sync();
        f.channel().closeFuture().sync();

    } finally {
        group.shutdownGracefully().sync();
    }
}