pakacge demo;
import java.io.Serializable;
/**
 * 实现了Serializable 接口的demo类
 */
public class Demo1 implements Serializable
{
    private String name;
    private String sex;
    private int age;
    public Demo1()
    {
    }
    public Demo1(String name,String sex,int age)
    {
        this.setName(name);
        this.setSex(sex);
        this.setAge(age);
    }
    public void setName(String name)
    {
        this.name = name;
    }
    public String getName()
    {
        return this.name;
    }
    public void setSex(String sex)
    {
        this.sex = sex;
    }
    public String getSex()
    {
        return this.sex;
    }
    public void setAge(int age)
    {
        this.age = age;
    }
    public int getAge()
    {
        return this.age;
    }
}

import demo.Demo1;
import java.io.*;
public class Index
{
    public static void main(String[] agrs)
    {
        test1();
    }
    public static void test1()
    {
        Demo1 demo1 = new Demo1("谭勇","男",23);
        try{
            //实例化一个ByteArray 对象
            ByteArrayOutputStream byteOut = new ByteArrayOutputStream();
            //实例化对象序列化输入流，并设置序列化后的对象输出到byteOut对象
            ObjectOutputStream objOutputStream = new ObjectOutputStream(byteOut);
            //将对象写入到byteOut 对象中
            objOutputStream.writeObject(demo1);
            //序列化后的对象转String 存储
            String strObj = byteOut.toString("ISO-8859-1");
            //关闭流
            objOutputStream.close();
            byteOut.close();
            /***************将序列化字符串转对象******************/
            //实例一个序列化对象输入流
            ByteArrayInputStream byteInputStream = new ByteArrayInputStream(strObj.getBytes("ISO-8859-1"));
            //序列化对象输入流
            ObjectInputStream objInput = new ObjectInputStream(byteInputStream);
            //将序列化对象转对象
            Demo1 demo1_ser = (Demo1)objInput.readObject();
            //关闭流
            objInput.close();
            byteInputStream.close();
            System.out.println(demo1_ser.getName());
            System.out.println(strObj);
        }catch(IOException e){
            System.out.println(e.getMessage());
        }catch(ClassNotFoundException e){
            System.out.println(e.getMessage());
        }
    }
}