java序列化

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package com.java.serializable;import java.io.File;import java.io.FileInputStream;import java.io.FileOutputStream;import java.io.IOException;import java.io.ObjectInputStream;import java.io.ObjectOutputStream;import java.io.Serializable;/** * JAVA序列化详解 * @author yfding * */public class SerializableTest {    public static void main(String[] args) {        /**         * 基本概念         * 1.把对象转换成字节序列的过程称为对象的序列化         * 2.把字节序列转换成对象的过程称为对象的反序列化         *          * 序列化的用途         * 1.把对象保存到硬盘上         * 2.网络传输中         *          * 注意点         * 1.如果Student对象为实现Serializable接口，出现异常【java.io.NotSerializableException: com.java.serializable.Student】         * 2.serialVersionUID是java编译器运行时根据java类自动生成的，建议在序列化类对象时生成serialVersionUID         * 3.如果不生成serialVersionUID，当我们在类中新增方法，或者属性时，在反序列化时，java会重新生成一个新的serialVersionUID，导致之前序列化的文件不能被反序列化         * */        // 序列化Student对象        SerializableTest.SerializeStudent();        // 反序列化Student对象        SerializableTest.DeserializeStudent();    }    /** 序列化Student */    private static void SerializeStudent(){        Student student = new Student("yfding",18);        try {            ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(new File("C:/admin-pc/Student.txt")));            oos.writeObject(student);            oos.close();        } catch (IOException e) {            e.printStackTrace();            System.out.println("序列化Student对象失败。");            return;        }        System.out.println("序列化Student对象成功。");    }    private static void DeserializeStudent(){        Student student = null;        try {            ObjectInputStream ois = new ObjectInputStream(new FileInputStream(new File("C:/admin-pc/Student.txt")));            student = (Student) ois.readObject();        } catch (IOException e) {            // TODO Auto-generated catch block            e.printStackTrace();            System.out.println("反序列化Student对象失败。");            return;        } catch (ClassNotFoundException e) {            // TODO Auto-generated catch block            e.printStackTrace();            System.out.println("反序列化Student对象失败。");            return;        }        System.out.println("反序列化Student对象成功。Student-toString()----"+student.toString());    }}class Student implements Serializable{    private static final long serialVersionUID = -231956256888721831L;    private String name;    private int age;    /*private int sex;    public int getSex() {        return sex;    }    public void setSex(int sex) {        this.sex = sex;    }*/    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) {        super();        this.name = name;        this.age = age;    }    @Override    public String toString() {        return "Student [name=" + name + ", age=" + age + "]";    }}
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