Client.java

/*
 * Copyright (C) 2012~2014 dinstone<dinstone@163.com>
 *
 * Licensed 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.dinstone.netty;

import io.netty.bootstrap.Bootstrap;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelHandlerAdapter;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioSocketChannel;

import java.io.IOException;

/**
 * @author guojinfei
 * @version 1.0.0.2014-9-29
 */
public class Client {

    public static void main(String[] args) throws IOException, InterruptedException {
        Bootstrap b = new Bootstrap();
        b.group(new NioEventLoopGroup()).channel(NioSocketChannel.class)
            .handler(new ChannelInitializer<NioSocketChannel>() {

                @Override
                protected void initChannel(NioSocketChannel ch) throws Exception {
                    ch.pipeline().addLast("dd", new ChannelHandlerAdapter() {

                        /**
                         * {@inheritDoc}
                         * 
                         * @see io.netty.channel.ChannelHandlerAdapter#exceptionCaught(io.netty.channel.ChannelHandlerContext,
                         *      java.lang.Throwable)
                         */
                        @Override
                        public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
                            System.out.println("error: ");
                            cause.printStackTrace();
                        }
                    });
                }
            });
        b.connect("localhost", 8090).addListener(new ChannelFutureListener() {

            public void operationComplete(ChannelFuture future) throws Exception {
                if (future.isSuccess()) {
                    future.channel().write(Unpooled.buffer().writeBytes("123".getBytes()));
                    future.channel().flush();
                }
            }
        });
    }
}