java中讲讲ObjectInputStream的用法，举例？

2.5 ObjectInputStream的用法 

马克-to-win：ObjectInputStream顾名思义就是可以从流中读入一个用户自定义的对象。一定要注意ObjectOutputStream与ObjectInputStream必须配合使用，且按同样的顺序。

例：2.5.1

import java.io.Serializable;

//类必须实现Serializable接口才可以被序列化, otherwise report error of java.io.NotSerializableException: J10.Employee

public class Employee implements Serializable {

    private String name; 

    private int id;

    public Employee(String name,int id){

        this.name = name;

        this.id = id;

    }

    public void showInfo(){

        System.out.println("name:" + name + "\tid:" + id );

    }

}

例：2.5.2

import java.io.*;

public class TestMark_to_win {

    public static void main(String[] args) throws IOException{

            FileOutputStream fos = new FileOutputStream("c://data.txt");

            ObjectOutputStream oos = new ObjectOutputStream(fos);

            oos.writeObject(new Employee("张三",1));

            oos.writeObject(new Employee("李四",2));

            oos.close();

    }

}

例：2.5.3

import java.io.*;

public class TestMark_to_win {

    public static void main(String[] args) throws IOException, ClassNotFoundException{

            FileInputStream fis = new FileInputStream("c://data.txt");

            ObjectInputStream ois = new ObjectInputStream(fis);

            Employee e1 = (Employee)ois.readObject();

            Employee e2 = (Employee)ois.readObject();

            e1.showInfo();

            e2.showInfo();

            ois.close();

    }

}

更多请见： https://blog.csdn.net/qq_44639795/article/details/102552138