import java.io.Serializable;
/** Serializable:用于给被序列化的类加入ID号。* 用于判断类和对象是否是同一个版本。 */
//Person诶实现Serializable接口，代表这个类可被序列化
public class Person implements Serializable/*标记接口*/ {/*** transient:非静态数据不想被序列化可以使用这个关键字修饰。 */private static final long serialVersionUID = 9527l;private transient String name;private static int age;public Person(String name, int age) {super();this.name = name;this.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;}}

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import cn.itcast.io.p2.bean.Person;public class ObjectStreamDemo {/*** @param args* @throws IOException * @throws ClassNotFoundException */public static void main(String[] args) throws IOException, ClassNotFoundException {//        writeObj();
        readObj();}public static void readObj() throws IOException, ClassNotFoundException {//ObjectInputStream 对象输入流ObjectInputStream ois = new ObjectInputStream(new FileInputStream("obj.object"));//对象的反序列化。需要类型转换。 Person p = (Person)ois.readObject();System.out.println(p.getName()+":"+p.getAge());ois.close();}public static void writeObj() throws IOException, IOException {//ObjectInputStream 对象输出流ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream("obj.object"));//对象序列化。  被序列化的对象必须实现Serializable接口。 oos.writeObject(new Person("小强",30));oos.close();}}