/*
* Copyright 2013-2018 Lilinfeng.
*
* 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.phei.netty.protocol.udp;
import io.netty.bootstrap.Bootstrap;
import io.netty.buffer.Unpooled;
import io.netty.channel.Channel;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.DatagramPacket;
import io.netty.channel.socket.nio.NioDatagramChannel;
import io.netty.util.CharsetUtil;
import java.net.InetSocketAddress;
/**
* @author lilinfeng
* @date 2014年2月14日
* @version 1.0
*/
public class ChineseProverbClient {
public void run(int port) throws Exception {
EventLoopGroup group = new NioEventLoopGroup();
try {
Bootstrap b = new Bootstrap();
b.group(group).channel(NioDatagramChannel.class)
.option(ChannelOption.SO_BROADCAST, true)
.handler(new ChineseProverbClientHandler());
Channel ch = b.bind(0).sync().channel();
// 向网段内的所有机器广播UDP消息
ch.writeAndFlush(
new DatagramPacket(Unpooled.copiedBuffer("谚语字典查询?",
CharsetUtil.UTF_8), new InetSocketAddress(
"255.255.255.255", port))).sync();
if (!ch.closeFuture().await(15000)) {
System.out.println("查询超时!");
}
} finally {
group.shutdownGracefully();
}
}
public static void main(String[] args) throws Exception {
int port = 8080;
if (args.length > 0) {
try {
port = Integer.parseInt(args[0]);
} catch (NumberFormatException e) {
e.printStackTrace();
}
}
new ChineseProverbClient().run(port);
}
}