Java基础-ObjectOutputStream和ObjectInputStream细节

package com.hspedu.io_;

import org.junit.Test;

import java.io.*;

public class SerializableObject_ {

    @Test
    public void serializableObjectDetails() throws IOException {

        String path = "e:\\JavaIO\\SerializableTest\\test.txt";
        ObjectOutputStream objectOutputStream = new ObjectOutputStream(new FileOutputStream(path));
        Human zh = new Human("张三", 10, "中国", "黄皮肤");
        objectOutputStream.writeObject(zh);
        objectOutputStream.close();
    }

    @Test
    public void deserializableDetails() throws IOException, ClassNotFoundException {
        String path = "e:\\JavaIO\\SerializableTest\\test.txt";
        ObjectInputStream objectInputStream = new ObjectInputStream(new FileInputStream(path));
        Object zh = objectInputStream.readObject();
        System.out.println(zh);
    }
}

class Human implements Serializable {
    private String name;
    private int age;
    private static String nation;   // static不具备序列化
    private transient String skipColor; // transient不具备序列化

    private Chinese chinese = new Chinese();

    private static final long serialVersionUID = 1L;    // serialVersionUID判断序列化版本一致性，序列化和反序列化必须一致

    public Human(String name, int age, String nation, String skipColor) {
        this.name = name;
        this.age = age;
        this.nation = nation;
        this.skipColor = skipColor;
    }

    @Override
    public String toString() {
        return name + ", " + age + ", " + nation + ", " + skipColor + ", " + chinese;
    }
}

class Chinese implements Serializable {
    @Override
    public String toString() {
        return "Chinese{}";
    }
}

注意：1、序列化和反序列化的类必须实现(implements) Serializable接口；

2、序列化和反序列化的顺序必须一致；

3、兼容性：一般添加 private static final long serialVersionUID = xxxL; 属性

序列化和反序列化serialVersionUID的值前后必须一致

参考博客：https://blog.csdn.net/u014750606/article/details/80040130