messagePack编解码

首先引入javassist-3.20.0-GA.jar与msgpack-0.6.12.jar两个包，然后就可以使用.

package com.ming.netty.code;

import java.io.Serializable;
import java.nio.ByteBuffer;


/**
 * 一个普通学生类
 * @author mingge
 *
 */
public class Student implements Serializable{
    private static final long serialVersionUID = 1L;

    private String stuName;


    public String getStuName() {
        return stuName;
    }

    public void setStuName(String stuName) {
        this.stuName = stuName;
    }
    
    public byte[] codeC(){
        ByteBuffer buffer=ByteBuffer.allocate(1024);
        byte[] value=this.getStuName().getBytes();
        buffer.putInt(value.length);
        buffer.put(value);
        buffer.flip();
        value=null;
        byte[] result=new byte[buffer.remaining()];
        buffer.get(result);
        return result;
    }
    
}

package com.ming.netty.code;

import java.io.ByteArrayOutputStream;
import java.io.ObjectOutputStream;
import java.util.ArrayList;
import java.util.List;

import org.msgpack.MessagePack;
import org.msgpack.template.Templates;

public class TestMsgPack {

    public static void main(String[] args) throws Exception{
        List<String> list=new ArrayList<>();
        list.add("a");
        list.add("b");
        list.add("c");
        
        ByteArrayOutputStream bos=new ByteArrayOutputStream();
        ObjectOutputStream os=new ObjectOutputStream(bos);
        os.writeObject(list);
        os.flush();
        os.close();
        byte[] b=bos.toByteArray();
        System.out.println("list的jdk序列化长度:"+b.length);
        
        MessagePack msgpack=new MessagePack();
        byte[] bytes=msgpack.write(list);//序列化编码
        System.out.println("list的msgpack序列化长度:"+bytes.length);
        
        List<String> dst=msgpack.read(bytes,Templates.tList(Templates.TString));//反序列化
        System.out.println("反序列化获取的值:"+dst.get(0));
        
        Teacher t=new Teacher();
        t.setNo(1);
        t.setName("张三");
        t.setSex("男");
        MessagePack msgpack1=new MessagePack();
        byte[] bytes1=MessagePack.pack(t);//序列化编码
        System.out.println("teacher序列化长度:"+bytes1.length);
        
        
        
        Teacher t1=msgpack1.read(bytes1, Teacher.class);
        System.out.println("t1的值:"+t1.getName());
    }
}

运行结果集:

list的jdk序列化长度:70
list的msgpack序列化长度:7
反序列化获取的值:a
teacher序列化长度:13
t1的值:张三

显然msgpack的序列化比jdk序列化要好一点.