s-day10-序列化流保存对象(ObjectOutputStream)
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package com.inmind.object_stream03;
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import java.io.FileOutputStream;
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import java.io.ObjectOutputStream;
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/*
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序列化流保存对象(ObjectOutputStream)
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构造方法:
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ObjectOutputStream(OutputStream out) 创建一个写入指定的OutputStream的ObjectOutputStream。
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常用方法:
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void writeObject(Object obj) 将指定的对象写入ObjectOutputStream。
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*/
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public class Demo09 {
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public static void main(String[] args) throws Exception {
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Student student = new Student("张三", 18);
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//获取序列化流对象,写出对象(将对象保存到文件中)
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FileOutputStream fos = new FileOutputStream("student.txt");
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ObjectOutputStream oos = new ObjectOutputStream(fos);
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//注意:如果要序列化对象,对应的类,必须支持序列化操作,也就是实现Serializable,类似一个标记的功能,表示可以序列化
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oos.writeObject(student);
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oos.close();
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}
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}
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package com.inmind.object_stream03;
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import java.io.Serializable;
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public class Student implements Serializable {
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String name;
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int age;
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@Override
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public String toString() {
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return "Student{" +
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"name='" + name + '\'' +
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", age=" + age +
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'}';
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}
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public Student(String name, int age) {
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this.name = name;
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this.age = age;
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}
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}
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