46 lines
1.5 KiB
Java
46 lines
1.5 KiB
Java
/*
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* Copyright 2022 learn-netty4 Project
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*
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* The learn-netty4 Project licenses this file to you under the Apache License,
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* version 2.0 (the "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at:
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*
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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package com.flydean11.udp;
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import io.netty.bootstrap.Bootstrap;
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import io.netty.channel.ChannelOption;
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import io.netty.channel.EventLoopGroup;
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import io.netty.channel.nio.NioEventLoopGroup;
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import io.netty.channel.socket.nio.NioDatagramChannel;
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/**
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* UDP 服务器
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*/
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public final class UDPServer {
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private static final int PORT = Integer.parseInt(System.getProperty("port", "8000"));
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public static void main(String[] args) throws Exception {
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EventLoopGroup group = new NioEventLoopGroup();
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try {
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Bootstrap b = new Bootstrap();
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b.group(group)
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.channel(NioDatagramChannel.class)
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.option(ChannelOption.SO_BROADCAST, true)
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.handler(new UDPServerHandler());
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b.bind(PORT).sync().channel().closeFuture().await();
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} finally {
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group.shutdownGracefully();
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}
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}
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}
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