package com.example.erp.tools.netty;
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import io.netty.bootstrap.ServerBootstrap;
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import io.netty.channel.ChannelFuture;
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import io.netty.channel.ChannelInitializer;
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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.SocketChannel;
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import io.netty.channel.socket.nio.NioServerSocketChannel;
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import io.netty.handler.codec.http.HttpObjectAggregator;
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import io.netty.handler.codec.http.HttpServerCodec;
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import io.netty.handler.codec.http.websocketx.WebSocketServerProtocolHandler;
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import io.netty.handler.stream.ChunkedWriteHandler;
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/**
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* NettyServer Netty服务器配置
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* @author zhengkai.blog.csdn.net
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* @date 2019-06-12
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*/
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public class NettyServer {
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private final int port;
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public NettyServer(int port) {
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this.port = port;
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}
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public void start() throws Exception {
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EventLoopGroup bossGroup = new NioEventLoopGroup();
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EventLoopGroup group = new NioEventLoopGroup();
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try {
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ServerBootstrap sb = new ServerBootstrap();
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sb.option(ChannelOption.SO_BACKLOG, 1024);
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sb.group(group, bossGroup) // 绑定线程池
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.channel(NioServerSocketChannel.class) // 指定使用的channel
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.localAddress(this.port)// 绑定监听端口
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.childHandler(new ChannelInitializer<SocketChannel>() { // 绑定客户端连接时候触发操作
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@Override
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protected void initChannel(SocketChannel ch) throws Exception {
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// System.out.println("收到新连接");
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//websocket协议本身是基于http协议的,所以这边也要使用http解编码器
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ch.pipeline().addLast(new HttpServerCodec());
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//以块的方式来写的处理器
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ch.pipeline().addLast(new ChunkedWriteHandler());
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ch.pipeline().addLast(new HttpObjectAggregator(8192));
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ch.pipeline().addLast(new MyWebSocketHandler());
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ch.pipeline().addLast(new WebSocketServerProtocolHandler("/ws", null, true, 65536 * 10));
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}
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});
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ChannelFuture cf = sb.bind().sync(); // 服务器异步创建绑定
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System.out.println(NettyServer.class + " 启动正在监听: " + cf.channel().localAddress());
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cf.channel().closeFuture().sync(); // 关闭服务器通道
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} finally {
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group.shutdownGracefully().sync(); // 释放线程池资源
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bossGroup.shutdownGracefully().sync();
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}
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}
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}
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