进阶day10-.序列化流保存对象(ObjectOutputStream)
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29
javaSE-day10/src/com/inmind/object_stream03/Demo11.java
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29
javaSE-day10/src/com/inmind/object_stream03/Demo11.java
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package com.inmind.object_stream03;
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import java.io.FileNotFoundException;
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import java.io.FileOutputStream;
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import java.io.IOException;
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import java.io.ObjectOutputStream;
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/*
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序列化流对象(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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注意:要进行序列化,被序列化的对象类必须实现一个接口Serializable,否则会报NotSerializableException
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*/
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public class Demo11 {
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public static void main(String[] args) throws IOException {
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Student s = new Student("张三", 20);
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//序列化:将java对象保存到文件中
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ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("student.txt"));
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oos.writeObject(s);
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oos.close();
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}
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}
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15
javaSE-day10/src/com/inmind/object_stream03/Student.java
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javaSE-day10/src/com/inmind/object_stream03/Student.java
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package com.inmind.object_stream03;
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import java.io.Serializable;
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/*
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Serializable接口的作用:起到一个标识的作用,确认当前类的对象可以序列化
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*/
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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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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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