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

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();
              }
          }
      }
}