Java tutorial
/* * Copyright 2012 The Netty Project * * The Netty Project licenses this file to you under the Apache License, * version 2.0 (the "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. */ package com.witjit.game.client; import io.netty.bootstrap.Bootstrap; import io.netty.buffer.ByteBuf; import io.netty.buffer.Unpooled; import io.netty.channel.Channel; import io.netty.channel.ChannelFuture; import io.netty.channel.EventLoopGroup; import io.netty.channel.nio.NioEventLoopGroup; import io.netty.channel.socket.nio.NioSocketChannel; /** * Simplistic telnet client. */ public final class Client { static final boolean SSL = System.getProperty("ssl") != null; static final String HOST = System.getProperty("host", "127.0.0.1"); static final int PORT = Integer.parseInt(System.getProperty("port", SSL ? "8992" : "8001")); public static void main(String[] args) throws Exception { EventLoopGroup group = new NioEventLoopGroup(); try { Bootstrap b = new Bootstrap(); b.group(group).channel(NioSocketChannel.class).handler(new ClientInitializer()); // Start the connection attempt. Channel ch = b.connect(HOST, PORT).sync().channel(); // Read commands from the stdin. ChannelFuture lastWriteFuture = null; // BufferedReader in = new BufferedReader(new InputStreamReader(System.in)); // for (;;) { // String line = in.readLine(); // if (line == null) { // break; // } // // // Sends the received line to the server. // lastWriteFuture = ch.writeAndFlush(line + "\r\n"); // // // If user typed the 'bye' command, wait until the server closes // // the connection. // if ("bye".equals(line.toLowerCase())) { // ch.closeFuture().sync(); // break; // } // } ByteBuf outb = Unpooled.buffer(200); outb.writeShort(127); outb.writeShort(10); outb.writeInt(10001); outb.writeByte(40); outb.writeByte(50); // Sends the received line to the server. lastWriteFuture = ch.writeAndFlush(outb); // Wait until all messages are flushed before closing the channel. if (lastWriteFuture != null) { lastWriteFuture.sync(); } // Wait until the connection is closed. ch.closeFuture().sync(); } finally { group.shutdownGracefully(); } } }