对象序列化流

package com.czie.iot1913.lps.IO.ObjectStream;

import java.io.FileOutputStream;
import java.io.ObjectOutputStream;

/**
 * FileName: ObjectOutPutStream
 * Author:   lps
 * Date:     2022/3/28 15:07
 * Sign:刘品水 Q：1944900433
 */
public class ObjectOutPutStreamDemo {
    public static void main(String[] args) throws Exception{
        //ObjectOutputStream(OutputStream out)
        //创建一个对象写入到指定的输出流。
        ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("F:\\JavaCode\\oos.txt"));
        Student s1 = new Student("刘品水",21);
        Student s2 = new Student();
        //void writeObject(Object obj)
        //写入指定的对象的对象。
        oos.writeObject(s1);
        //NotSerializableException
        // 当一个实例需要实现Serializable接口。序列化运行时或实例类可以抛出此异常。参数应该是类的名称。
        //一个类的串行化是由类实现java.io.serializable接口启用。类没有实现这个接口不会有任何序列化或反序列化其状态

        oos.close();

    }
}

package com.czie.iot1913.lps.IO.ObjectStream;

import java.io.Serializable;

/**
 * FileName: Student
 * Author:   lps
 * Date:     2022/3/28 15:12
 * Sign:刘品水 Q：1944900433
 */
public class Student implements Serializable {
 private String name;
 private int age;

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

 public String getName() {
  return name;
 }

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

 public int getAge() {
  return age;
 }

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

 public Student(String name, int age) {
  this.name = name;
  this.age = age;
 }

 public Student() {
 }
}