基于netty的Marshalling序列化框架简单实现

Marshalling序列化框架简单实现

1.导入相关jar包

maven项目直接添加依赖即可。

        <!-- MarshAlling dependency -->
        <dependency>
            <groupId>org.jboss.marshalling</groupId>
            <artifactId>jboss-marshalling-osgi</artifactId>
            <version>2.0.0.Beta5</version>
        </dependency>

2.创建序列化传输的类

//记得要实现Serializable接口
public class UserInfo implements Serializable {
    private String username;
    private String age;
    public String getUsername() {
        return username;
    }
    public String getAge() {
        return age;
    }
    public void setUsername(String username) {
        this.username = username;
    }
    public void setAge(String age) {
        this.age = age;
    }
    public UserInfo(String username, String age) {
        super();
        this.username = username;
        this.age = age;
    }
    
    public UserInfo(){
        
    }
    @Override
    public String toString() {
        return "UserInfo [username=" + username + ", age=" + age + "]";
    }
    
    
    
    
}

3.编写创建MarshallingEncoder和MarshallingDecoder的工厂类

public class MarshallingCodeFactory {
    public static MarshallingEncoder getEncoder(){
    //这里表示的是支持java serial对象的序列化。所以我们传输的对象要实现Serializable接口
        MarshallerFactory factory = Marshalling.getProvidedMarshallerFactory("serial");
        MarshallingConfiguration configuration = new MarshallingConfiguration();
        configuration.setVersion(5);
        MarshallerProvider provider = new DefaultMarshallerProvider(factory, configuration);
        MarshallingEncoder encoder = new MarshallingEncoder(provider);
        return encoder;
    }
    
    public static MarshallingDecoder getDecoder(){
        MarshallerFactory factory = Marshalling.getProvidedMarshallerFactory("serial");
        MarshallingConfiguration configuration = new MarshallingConfiguration();
        configuration.setVersion(5);
        UnmarshallerProvider provider = new DefaultUnmarshallerProvider(factory, configuration);
        MarshallingDecoder decoder = new MarshallingDecoder(provider);
        return decoder;
    }

4.Server端

package cn.senninha.concurrent.server;

import cn.senninha.concurrent.code.MarshallingCodeFactory;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.handler.codec.marshalling.MarshallingDecoder;
import io.netty.handler.codec.marshalling.MarshallingEncoder;

public class TimeServerMarshalling {
    public void bind(int port) throws Exception {
        EventLoopGroup bossGruop = new NioEventLoopGroup();
        EventLoopGroup workGroup = new NioEventLoopGroup();
        ServerBootstrap bootstrap = new ServerBootstrap();
        bootstrap.group(bossGruop, workGroup).channel(NioServerSocketChannel.class)
                .option(ChannelOption.SO_BACKLOG, 1024).childHandler(new ChildChannelHandler());

        try {
            ChannelFuture future = bootstrap.bind(port).sync();
            future.channel().closeFuture().sync();
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally {
            bossGruop.shutdownGracefully();
            workGroup.shutdownGracefully();
        }
    }

    private class ChildChannelHandler extends ChannelInitializer<SocketChannel> {

        @Override
        protected void initChannel(SocketChannel ch) throws Exception {
            // TODO Auto-generated method stub
            //这里添加marshalling的序列化支持
            MarshallingEncoder encoder = MarshallingCodeFactory.getEncoder();
            MarshallingDecoder decoder = MarshallingCodeFactory.getDecoder();
            ch.pipeline().addLast(encoder);
            ch.pipeline().addLast(decoder);
            ch.pipeline().addLast(new TimeServerHandler());
        }
    }

    public static void main(String[] args) {
        int port = 12580;
        try {
            new TimeServerMarshalling().bind(port);
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}

对应的serverhanlder：

package cn.senninha.concurrent.server;

import java.nio.ByteBuffer;

import org.msgpack.MessagePack;
import org.omg.Messaging.SyncScopeHelper;

import io.netty.buffer.ByteBuf;
import io.netty.buffer.ByteBufUtil;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelHandlerAdapter;
import io.netty.channel.ChannelHandlerContext;

public class TimeServerHandler extends ChannelHandlerAdapter {

    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
        // TODO Auto-generated method stub
//      ByteBuf in = (ByteBuf) msg;
        try {
            System.out.println(msg);
            String remsg = new String("has receive");
            ctx.write(remsg);
            ctx.flush();
        } catch (Exception e) {
            e.printStackTrace();
        }finally {
        }
    }

    @Override
    public void channelReadComplete(ChannelHandlerContext ctx) throws Exception {
        // TODO Auto-generated method stub
        ctx.flush();
    }
}

5.Client端

package cn.senninha.concurrent.client;

import java.net.UnknownHostException;

import cn.senninha.concurrent.code.MarshallingCodeFactory;
import io.netty.bootstrap.Bootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.handler.codec.marshalling.MarshallingDecoder;
import io.netty.handler.codec.marshalling.MarshallingEncoder;

public class NettyClientMarshalling {

    
    private void bind(int port,String host){
        EventLoopGroup group = new NioEventLoopGroup();
        Bootstrap b = new Bootstrap();
        b.group(group).channel(NioSocketChannel.class)
        .option(ChannelOption.TCP_NODELAY, true).handler(new ClientHandlerInit());
        
        try {
            ChannelFuture f = b.connect(host, port).sync();
            f.channel().closeFuture().sync();
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        } finally{
            group.shutdownGracefully();
        }
        
        
        
    }
    
    private class ClientHandlerInit extends ChannelInitializer<SocketChannel>{

        @Override
        protected void initChannel(SocketChannel ch) throws Exception {
            // TODO Auto-generated method stub
            //添加对marshalling框架的支持
            MarshallingEncoder encoder = MarshallingCodeFactory.getEncoder();
            MarshallingDecoder decoder = MarshallingCodeFactory.getDecoder();
            ch.pipeline().addLast(encoder);
            ch.pipeline().addLast(decoder);
            ch.pipeline().addLast(new ClientHandler());
        }
        
    }

    public static void main(String[] args) throws UnknownHostException {
        // TODO Auto-generated method stub
        NettyClientMarshalling client = new NettyClientMarshalling();
        client.bind(12580,"localhost");
    }

}

对应的clienthandler代码：

package cn.senninha.concurrent.client;

import cn.senninha.concurrent.code.model.UserInfo;
import io.netty.channel.ChannelHandlerAdapter;
import io.netty.channel.ChannelHandlerContext;
import javassist.bytecode.ByteArray;

public class ClientHandler extends ChannelHandlerAdapter {
    private byte[] request = ("senninha" + System.getProperty("line.separator")).getBytes();

    @Override
    public void channelRead(ChannelHandlerContext ctx, Object msg) throws Exception {
        // TODO Auto-generated method stub
        System.out.println(msg);
    }

    @Override
    public void channelActive(ChannelHandlerContext ctx) throws Exception {
        // TODO Auto-generated method stub
        for (int i = 0; i < 500; i++) {
            UserInfo userInfo = new UserInfo();
            userInfo.setAge(i + "year");
            userInfo.setUsername("senninha");
            ctx.write(userInfo);
            ctx.flush();
        }
        System.out.println("-----------------send over-----------------");
    }

    @Override
    public void exceptionCaught(ChannelHandlerContext ctx, Throwable cause) throws Exception {
        // TODO Auto-generated method stub
        System.out.println("error");
    }
}

6.运行

UserInfo [username=senninha, age=0year]
UserInfo [username=senninha, age=1year]
UserInfo [username=senninha, age=2year]
UserInfo [username=senninha, age=3year]
UserInfo [username=senninha, age=4year]

参考《netty权威指南》

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