IO流丶序列化与反序列化

序列化就是利用ObjectOutputStream与FileOutputStream之间的联系将数据写入文本中；

反序列化是利用ObjectInputStream与FileInputStream之间的联系将数据读出来，已实体类的方式接受。

一个Student对象的序列化：

package liu;import java.io.Serializable;/** * 实体类pojo * Created by Administrator on 2017/9/1. */public class Student implements Serializable {    private static final long serializUID= -1888888888L;    String name ;    int id;    transient int age;    String department;    public Student() {    }    public Student(String name, int id, int age, String department) {        this.name = name;        this.id = id;        this.age = age;        this.department = department;    }    @Override    public String toString() {        return "Student{" +                "name='" + name + '\'' +                ", id=" + id +                ", age=" + age +                ", department='" + department + '\'' +                '}';    }}

package liu;import java.io.*;/** * 序列化 * Created by Administrator on 2017/9/1. */public class StudentXLH {    //对实体类进行序列化    private static void SerializeStudent() throws Exception{        Student s = new Student();        s.name="马云";        s.age=21;        s.id=138;        ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(new File("aaa.txt")));//序列化信息放在文本中        oos.writeObject(s);        System.out.println("序列化成功！");    }    //反序列化为实体类    private static void FanSerializeStudent() throws Exception{        ObjectInputStream ois = new ObjectInputStream(new FileInputStream("aaa.txt"));        Student student = (Student) ois.readObject();        System.out.println("姓名："+student.name+",年龄："+student.age);    }    public static void main(String[] args) throws  Exception{        SerializeStudent();        FanSerializeStudent();    }}