Java对象的序列化和反序列化

要序列化的了类需要实现Serializable接口

package com.mouday;

import java.io.Serializable;

public class Person implements Serializable {
    // 序列化前后的唯一标识符
    private static final long serialVersionUID = 1;

    private String name;
    private int age;
    private int score;

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

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

    @Override
    public String toString() {
        return "Person{" +
                "name='" + name + '\'' +
                ", age=" + age +
                ", score=" + score +
                '}';
    }
}

序列化和反序列化

import com.mouday.Person;
import org.junit.Test;

import java.io.*;

public class TestDemo {
    @Test
    public void serialize() throws IOException {
        Person person = new Person();
        person.setAge(23);
        person.setName("Tom");

        ObjectOutputStream objectOutputStream = new ObjectOutputStream(
                new FileOutputStream(
                        new File("person.txt")
                )
        );

        objectOutputStream.writeObject(person);
        objectOutputStream.close();
    }

    @Test
    public void deserialize() throws IOException, ClassNotFoundException {
        ObjectInputStream objectInputStream = new ObjectInputStream(
                new FileInputStream(
                        new File("person.txt")
                )
        );

        Person person = (Person)objectInputStream.readObject();
        objectInputStream.close();

        System.out.println(person);
    //    Person{name='Tom', age=23}
    }
}

参考 序列化/反序列化，我忍你很久了，淦！