Netty 4 整合到 Springboot

Netty 4 整合到 Springboot

项目搭建

添加依赖包

    
    
        io.netty
        netty-all
        4.0.36.Final
    
    

修改配置文件

1. application.properties重命名为application.yml

2. 添加以下配置:

   n:
     port: 7000
     url: 127.0.0.1
   

编写服务端

NettyServer.java

package club.maoyupeng.demo.sslnetty.web.socket.server;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.Channel;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import org.apache.log4j.Logger;
import org.springframework.stereotype.Component;

import java.net.InetSocketAddress;

/**
 * 标题:  Netty 服务  

 * 
 * 
 *
 * @author 毛宇鹏
 * @date 创建于 上午9:02 2018/4/25
 */
@Component
public class NettyServer {

    private static final Logger log = Logger.getLogger(NettyServer.class);

    private final EventLoopGroup bossGroup = new NioEventLoopGroup();
    private final EventLoopGroup workerGroup = new NioEventLoopGroup();

    private Channel channel;

    /**
     * 启动服务
     */
    public ChannelFuture run (InetSocketAddress address) {

        ChannelFuture f = null;
        try {
            ServerBootstrap b = new ServerBootstrap();
            b.group(bossGroup, workerGroup)
                    .channel(NioServerSocketChannel.class)
                    .childHandler(new ServerChannelInitializer())
                    .option(ChannelOption.SO_BACKLOG, 128)
                    .childOption(ChannelOption.SO_KEEPALIVE, true);

            f = b.bind(address).syncUninterruptibly();
            channel = f.channel();
        } catch (Exception e) {
            log.error("Netty start error:", e);
        } finally {
            if (f != null && f.isSuccess()) {
                log.info("Netty server listening " + address.getHostName() + " on port " + address.getPort() + " and ready for connections...");
            } else {
                log.error("Netty server start up Error!");
            }
        }

        return f;
    }

    public void destroy() {
        log.info("Shutdown Netty Server...");
        if(channel != null) { channel.close();}
        workerGroup.shutdownGracefully();
        bossGroup.shutdownGracefully();
        log.info("Shutdown Netty Server Success!");
    }
}

ServerChannelInitializer.java

package club.maoyupeng.demo.sslnetty.web.socket.server;

import io.netty.channel.ChannelInitializer;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.codec.string.StringDecoder;
import io.netty.handler.codec.string.StringEncoder;
import io.netty.util.CharsetUtil;

/**
 * 标题:    

 * 
 * 
 *
 * @author 毛宇鹏
 * @date 创建于 上午9:13 2018/4/25
 */
public class ServerChannelInitializer extends ChannelInitializer {
    @Override
    protected void initChannel(SocketChannel socketChannel) {
        // 解码编码
        socketChannel.pipeline().addLast(new StringDecoder(CharsetUtil.UTF_8));
        socketChannel.pipeline().addLast(new StringEncoder(CharsetUtil.UTF_8));

        socketChannel.pipeline().addLast(new ServerHandler());
    }
}

ServerHandler.java

package club.maoyupeng.demo.sslnetty.web.socket.server;

import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;

/**
 * 标题:    

 * 
 * 
 *
 * @author 毛宇鹏
 * @date 创建于 上午9:14 2018/4/25
 */
public class ServerHandler extends SimpleChannelInboundHandler