netty4 + protobuf 客户端和服务端

pom.xml包引入

        
        
            com.google.protobuf
            protobuf-java
            3.5.1
        
       
        
        
            com.googlecode.protobuf-java-format
            protobuf-java-format
            1.2
        

        
        
            io.netty
            netty-codec
            4.1.24.Final
        

Service端代码 

​package cn.shuzilm.interf.rtb;

import cn.shuzilm.backend.rtb.RuleMatching;
import cn.shuzilm.bean.youyi.BidserverSsp;
import cn.shuzilm.common.AppConfigs;
import cn.shuzilm.common.jedis.JedisManager;
import io.netty.bootstrap.*;
import io.netty.channel.*;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.codec.protobuf.ProtobufDecoder;
import io.netty.handler.codec.protobuf.ProtobufEncoder;
import io.netty.handler.codec.protobuf.ProtobufVarint32FrameDecoder;
import io.netty.handler.codec.protobuf.ProtobufVarint32LengthFieldPrepender;
import io.netty.handler.timeout.IdleStateHandler;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.sql.Connection;


/**
 * @Description: netty4 + protobuf
 * @Author: houkp
 * @CreateDate: 2018/11/20 19:35
 * @UpdateUser: houkp
 * @UpdateDate: 2018/11/20 19:35
 * @UpdateRemark: 修改内容
 * @Version: 1.0
 */
public class RtbServer {


    private static RuleMatching ruleMatching;

    private static JedisManager jedisManager;

    private static AppConfigs configs = null;

    private static final String FILTER_CONFIG = "filter.properties";

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

    public static void main(String[] args) {
        try {
            //configs = AppConfigs.getInstance(FILTER_CONFIG);
            //初始化redis
            //jedisManager = JedisManager.getInstance();
            //初始化广告
            //ruleMatching = RuleMatching.getInstance();
            RtbServer server = new RtbServer();
            //server.start(configs.getInt("RTB_PORT"));
            server.start(8710);

        } catch (Exception e) {
            log.error("创建服务异常", e);
        }

    }

    public void start(int port) {
        // boss线程池
        EventLoopGroup bossGroup = new NioEventLoopGroup();
        // worker线程池
        EventLoopGroup workerGroup = new NioEventLoopGroup();
        ServerBootstrap bootstrap = new ServerBootstrap();
        bootstrap.group(bossGroup, workerGroup);
        // 使用TCP
        bootstrap.channel(NioServerSocketChannel.class);
        // BACKLOG用于构造服务端套接字ServerSocket对象，标识当服务器请求处理线程全满时，用于临时存放已完成三次握手的请求的队列的最大长度。如果未设置或所设置的值小于1，Java将使用默认值50。
        bootstrap.option(ChannelOption.SO_BACKLOG, 128);
        // 是否启用心跳保活机制。在双方TCP套接字建立连接后（即都进入ESTABLISHED状态）并且在两个小时左右上层没有任何数据传输的情况下，这套机制才会被激活。
        bootstrap.childOption(ChannelOption.SO_KEEPALIVE, true);
        // 初始化配置的处理器
        bootstrap.childHandler(new ServerPipelineFactory());
        try {
            ChannelFuture f = bootstrap.bind(port).sync();
            f.channel().closeFuture().sync();
        } catch (InterruptedException e) {
            log.error("服务启动异常", e);
            e.printStackTrace();
        } finally {
            workerGroup.shutdownGracefully();
            bossGroup.shutdownGracefully();
        }
    }

    private class ServerPipelineFactory extends ChannelInitializer {

        @Override
        protected void initChannel(SocketChannel socketChannel) throws Exception {

            ChannelPipeline pipeline = socketChannel.pipeline();

            // ----Protobuf处理器，这里的配置是关键----
            pipeline.addLast("frameDecoder", new ProtobufVarint32FrameDecoder());// 用于decode前解决半包和粘包问题（利用包头中的包含数组长度来识别半包粘包）
            //配置Protobuf解码处理器，消息接收到了就会自动解码，ProtobufDecoder是netty自带的，Message是自己定义的Protobuf类
            pipeline.addLast("protobufDecoder", new ProtobufDecoder(BidserverSsp.BidRequest.getDefaultInstance()));
            // 用于在序列化的字节数组前加上一个简单的包头，只包含序列化的字节长度。
            pipeline.addLast("frameEncoder", new ProtobufVarint32LengthFieldPrepender());
            //配置Protobuf编码器，发送的消息会先经过编码
            pipeline.addLast("protobufEncoder", new ProtobufEncoder());
            // ----Protobuf处理器END----
            pipeline.addLast("handler", new RtbHandler());//自己定义的消息处理器，接收消息会在这个类处理


        }
    }

}

package cn.shuzilm.interf.rtb;

import cn.shuzilm.bean.youyi.BidserverSsp;
import cn.shuzilm.interf.rtb.parser.RtbRequestParser;

import com.google.protobuf.Message;
import com.googlecode.protobuf.format.JsonFormat;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.UnsupportedEncodingException;
import java.util.List;


/**
 * 对应不同版本的SDK，netty需要做相应的修改： 1、队列名 2、日志路径 3、maven包名，用端口号做区分
 *
 * @author
 */
public class RtbHandler extends SimpleChannelInboundHandler {

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

    private static  BidserverSsp.BidRequest bidRequest = BidserverSsp.BidRequest.newBuilder().buildPartial();

    RtbRequestParser parser = null;

    public RtbHandler() {
        parser = new RtbRequestParser();
        System.out.println(Thread.currentThread().getName() + " rtb parser 初始化成功。。。");
    }

    @Override
    protected void channelRead0(ChannelHandlerContext channelHandlerContext, Message message) throws Exception {
        System.out.println(message.getClass());
        bidRequest = (BidserverSsp.BidRequest) message;
        String sessionId = bidRequest.getSessionId();
        List adzoneList = bidRequest.getAdzoneList();
        BidserverSsp.BidRequest.Exchange exchange = bidRequest.getExchange();
//        System.out.println(adzoneList);
//        System.out.println(exchange.toBuilder());
//        String jsonString =JsonFormat.printToString(bidRequest);
//        log.debug("jsonString",jsonString);
        log.debug("sessionId:{}",sessionId);
        log.debug("channelHandlerContext:{}", channelHandlerContext);
        log.debug("channelHandlerContext:{}", channelHandlerContext.channel().remoteAddress());
        BidserverSsp.BidResponse bidResponse = BidserverSsp.BidResponse.newBuilder().setSessionId(sessionId).build();
        // 返回客户端消息 - 我已经接收到了你的消息
        channelHandlerContext.writeAndFlush(bidResponse);
    }

    /*
     * 覆盖 channelActive 方法 在channel被启用的时候触发 (在建立连接的时候)
     */
    @Override
    public void channelActive(ChannelHandlerContext ctx) throws Exception {
        System.out.println("RamoteAddress : " + ctx.channel().remoteAddress() + " active !");
        String welcome = "Welcome to " + InetAddress.getLocalHost().getHostName() + " service!";
        BidserverSsp.BidResponse bidResponse = BidserverSsp.BidResponse.newBuilder().setSessionId(welcome).build();
        ctx.writeAndFlush(bidResponse);
        super.channelActive(ctx);
    }


    /**
     * 解析进来的请求数据
     *
     * @throws UnsupportedEncodingException
     */
    public String parseRequest(String url, String dataStr, String remoteIp) throws Exception {
        /**********		POST主业务逻辑		***************/
        String resultData = parser.parseData(url, dataStr, remoteIp);//SDK 2.0.1

//		byte[] content = null;
//		content = resultData.getBytes("utf-8");
        return resultData;
    }


}

 Client端代码

package cn.shuzilm.interf.rtb.parser.client;

import io.netty.bootstrap.Bootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioSocketChannel;

public class Client {
    public static String host = "172.17.129.124";
    public static int port = 9710;

    public static void main(String[] args) {
        EventLoopGroup worker = new NioEventLoopGroup();
        Bootstrap b = new Bootstrap();
        b.group(worker);
        b.channel(NioSocketChannel.class);
        b.handler(new ClientInitializer());
        try {
            ChannelFuture f = b.connect(host, port).sync();
            f.channel().closeFuture().sync();
        } catch (InterruptedException e) {

            e.printStackTrace();
        } finally {
            worker.shutdownGracefully();
        }

    }
}

package cn.shuzilm.interf.rtb.parser.client;

import cn.shuzilm.bean.youyi.BidserverSsp;
import com.google.protobuf.Message;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.SimpleChannelInboundHandler;

import java.util.UUID;

public class ClientHandler extends SimpleChannelInboundHandler {

    /**
     *
     */
    protected void channelRead0(ChannelHandlerContext ctx, Message msg) throws Exception {

        System.out.println("Server say : " + msg.getClass());
        BidserverSsp.BidResponse bidRequest = (BidserverSsp.BidResponse) msg;
        System.out.println(bidRequest.getSessionId());
    }

    /**
     *
     */
    public void channelActive(ChannelHandlerContext ctx) throws Exception {
        System.out.println("Client active ");
        String id = UUID.randomUUID().toString().replaceAll("-", "");
        BidserverSsp.BidRequest bidRequest = BidserverSsp.BidRequest.newBuilder().setSessionId(id).build();
        ctx.writeAndFlush(bidRequest);
        super.channelActive(ctx);
    }

    @Override
    public void channelInactive(ChannelHandlerContext ctx) throws Exception {
        System.out.println("Client close ");
        super.channelInactive(ctx);
    }


}

package cn.shuzilm.interf.rtb.parser.client;

import cn.shuzilm.bean.youyi.BidserverSsp;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.socket.SocketChannel;
import io.netty.handler.codec.LengthFieldBasedFrameDecoder;
import io.netty.handler.codec.LengthFieldPrepender;
import io.netty.handler.codec.protobuf.ProtobufDecoder;
import io.netty.handler.codec.protobuf.ProtobufEncoder;

public class ClientInitializer extends ChannelInitializer {

    protected void initChannel(SocketChannel ch) throws Exception {
        // decoded
//        ch.pipeline().addLast(new LengthFieldBasedFrameDecoder(1024, 0, 4, 0, 4));
        //这里是收到服务端发过来的消息,所以是对服务端的response解码
        ch.pipeline().addLast(new ProtobufDecoder(BidserverSsp.BidResponse.getDefaultInstance()));
        // encoded
//        ch.pipeline().addLast(new LengthFieldPrepender(4));
        ch.pipeline().addLast(new ProtobufEncoder());
        // 注册handler
        ch.pipeline().addLast(new ClientHandler());
    }

}