Java中对象的序列化需要什么 [关闭]

Java中对象的序列化需要什么？

java
import java.io.Serializable;
public class Person implements Serializable {
    private String name;
    private int age;
    public Person(String name, int age) {
        this.name = name;
        this.age = age;
    }
    public String getName() {
        return name;
    }
    public int getAge() {
        return age;
    }
}

java
import java.io.*;
public class SerializationDemo {
    public static void main(String[] args) {
        // 对象序列化
        Person person = new Person("Alice", 25);
        try {
            FileOutputStream fileOut = new FileOutputStream("person.ser");
            ObjectOutputStream out = new ObjectOutputStream(fileOut);
            out.writeObject(person);
            out.close();
            fileOut.close();
            System.out.println("对象已序列化到文件person.ser");
        } catch (IOException e) {
            e.printStackTrace();
        }
        // 对象反序列化
        Person deserializedPerson = null;
        try {
            FileInputStream fileIn = new FileInputStream("person.ser");
            ObjectInputStream in = new ObjectInputStream(fileIn);
            deserializedPerson = (Person) in.readObject();
            in.close();
            fileIn.close();
        } catch (IOException | ClassNotFoundException e) {
            e.printStackTrace();
        }
        if (deserializedPerson != null) {
            System.out.println("反序列化得到的对象：");
            System.out.println("姓名：" + deserializedPerson.getName());
            System.out.println("年龄：" + deserializedPerson.getAge());
        }
    }
}