JAVA序列化 Serializable 将对象转为数组，再反过来将数组转为对象

序列化过程中，其对象想要被序列化，那么它的类就要实现 此接口，这个对象的所有属性（包括private属性、包括其引用的对象）都可以被序列化和反序列化来保存、传递。
比如：在本实例中，DivSort必须实现Serializable接口，不实现的话，会在序列化过程中报错，一般会在o.writeObject(obj)的这一步骤报错。

import java.io.Serializable;

public class DivSort implements Serializable{
 public int age;
 public String name;
 public int score;
 
 
 
	public DivSort(int age, String name, int score) {
	super();
	this.age = age;
	this.name = name;
	this.score = score;
}
	public int getAge() {
	return age;
}
public void setAge(int age) {
	this.age = age;
}
public String getName() {
	return name;
}
public void setName(String name) {
	this.name = name;
}
public int getScore() {
	return score;
}
public void setScore(int score) {
	this.score = score;
}

}

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.util.ArrayList;


public class ArrayToByte{

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	public static void main(String[] args) throws IOException, ClassNotFoundException {
		// TODO Auto-generated method stub
		ArrayList<DivSort>  list1=new ArrayList<DivSort>();
		byte[] b=null;
		list1.add(new DivSort(12,"zhansan",234));
		list1.add(new DivSort(13,"zhansan",234));
		list1.add(new DivSort(14,"zhansan",234));
		for(DivSort l:list1) {
			System.out.println(l.age);
		}
		System.out.println("start");
		b=ArrayToByte.serialize(list1);
		System.out.println(b);
		System.out.println(ArrayToByte.deserialize(b));
		list1=(ArrayList<DivSort>) ArrayToByte.deserialize(b);
		for(DivSort d:list1) {
			System.out.println(d.getAge());
		}
		
	
		
	}
	
	 public static byte[] serialize(Object obj) throws IOException {
	        try(ByteArrayOutputStream b = new ByteArrayOutputStream()){
	            try(ObjectOutputStream o = new ObjectOutputStream(b)){
	                o.writeObject(obj);
	            }
	            return b.toByteArray();
	        }
	    }

	    public static Object deserialize(byte[] bytes) throws IOException, ClassNotFoundException {
	        try(ByteArrayInputStream b = new ByteArrayInputStream(bytes)){
	            try(ObjectInputStream o = new ObjectInputStream(b)){
	                return o.readObject();
	            }
	        }
	    }

	
	
	


}