19. 基础IO(3)——序列化与反序列化

序列化：把一个结构化数据（对象）编程一个二进制的bit流（就比如游戏中的存档，保存游戏场景） 反序列化：把二进制的bit流还原回原来的对象（就比如游戏中的读档）

序列化

代码语言：javascript复制

import java.io.*;

class Student implements Serializable {
    public String name;
    public int age;
    public int score;
}
public class IODemo6 {
    public static void main(String[] args) throws IOException {
        Student student = new Student();
        student.name = "ss";
        student.age = 12;
        student.score = 34;
        serialzeStudent(student);
    }

    private static void serialzeStudent(Student student) throws IOException {
        ObjectOutputStream objectOutputStream = new ObjectOutputStream(new FileOutputStream("d:/student.txt"));
        objectOutputStream.writeObject(student);//序列化和写文件同时搞定
        objectOutputStream.close();
    }

执行后会在指定位置生成一个student文件

反序列化

代码语言：javascript复制

import java.io.FileInputStream;
import java.io.IOException;
import java.io.ObjectInputStream;

public class IODemo7 {
    public static void main(String[] args) throws IOException, ClassNotFoundException {
        Student ret = deserializeStudent();
        System.out.println(ret.name);
        System.out.println(ret.age);
        System.out.println(ret.score);
    }

    public static Student deserializeStudent() throws IOException, ClassNotFoundException {
        ObjectInputStream objectInputStream = new ObjectInputStream(new FileInputStream("d:/student.txt"));
        Student s = (Student) objectInputStream.readObject();
        return s;
    }
}

就读取出了当前文件中的内容

游戏 bit 编程 二进制 序列化

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