Java tutorial
/* * 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(); } } }); } }