详解Java 序列化与反序列化（Serialization）

import java.io.Serializable;

/**
 * @Author: pf_xu
 * @Date: 2019/3/5 12:37
 * @Version 1.0
 */
public class Person implements Serializable {

 private int age;
 private String name;

 public Person(int age, String name) {
 this.age = age;
 this.name = name;
 }

 public void setAge(int age) {
 this.age = age;
 }

 public void setName(String name) {
 this.name = name;
 }

 public int getAge() {
 return age;
 }

 public String getName() {
 return name;
 }

}

import java.io.Externalizable;
import java.io.IOException;
import java.io.ObjectInput;
import java.io.ObjectOutput;

/**
 * @Author: pf_xu
 * @Date: 2019/3/5 13:01
 * @Version 1.0
 */
public class SpecialPerson implements Externalizable {

 private int age;
 private String name;

 public SpecialPerson(){}

 public SpecialPerson(int age, String name) {
 this.age = age;
 this.name = name;
 }

 public void setAge(int age) {
 this.age = age;
 }

 public void setName(String name) {
 this.name = name;
 }

 public int getAge() {
 return age;
 }

 public String getName() {
 return name;
 }

 @Override
 public void writeExternal(ObjectOutput out) throws IOException {
 out.writeObject(age);
 out.writeObject(name);
 }

 @Override
 public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException {
 this.age = (Integer) in.readObject();
 this.name = (String)in.readObject();
 }
}

import java.io.*;

/**
 * @Author: pf_xu
 * @Date: 2019/3/5 12:40
 * @Version 1.0
 */
public class SerializableDemo {
 public static void main(String[] args) throws IOException, ClassNotFoundException {

 Person person = new Person(10,"Simon");
 ObjectOutputStream oos1 = new ObjectOutputStream(new FileOutputStream("object1.out"));
 oos1.writeObject(person);
 ObjectInputStream ois1= new ObjectInputStream(new FileInputStream("object1.out"));
 Person re_person = (Person) ois1.readObject();
 System.out.println(re_person.getName()+"---"+re_person.getAge());

 SpecialPerson specialPerson = new SpecialPerson(30,"Daniel");
 ObjectOutputStream oos2 = new ObjectOutputStream(new FileOutputStream("object2.out"));
 oos2.writeObject(specialPerson);
 ObjectInputStream ois2= new ObjectInputStream(new FileInputStream("object2.out"));
 SpecialPerson re_specialPerson = (SpecialPerson)ois2.readObject();
 System.out.println(re_specialPerson.getName()+"---"+re_specialPerson.getAge());

 }
}