IO流，对象操作流ObjectOutputStream

该流可以将一个对象写出，或者读取一个对象到程序中，也就是执行了序列化和反序列化的操作。

1.创建一个PERSON对象实现Serializable接口。

public class Person implements Serializable {
private String name;
private int age;

public Person() {
super();
// TODO Auto-generated constructor stub
}

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;
}

@Override
public String toString() {
return "Person [name=" + name + ", age=" + age + "]";
}

2.进行对象序列化和反序列化。（就是将这两个对象存储到e.txt中，在从e.txt 中读取出来）

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class ObjectOutputStream {
public static void main(String[] args) throws IOException, ClassNotFoundException{
test1();
java.io.ObjectInputStream ois = new java.io.ObjectInputStream(new FileInputStream("e.txt"));
Person p1 = (Person) ois.readObject();
Person p2 = (Person) ois.readObject();
System.out.println(p1);
System.out.println(p2);
ois.close();
}

private static void test1() throws IOException, FileNotFoundException {
Person p1= new Person("张三",23);
Person p2= new Person("李三",23);
java.io.ObjectOutputStream oos = new java.io.ObjectOutputStream(new FileOutputStream("e.txt"));
oos.writeObject(p1);
oos.writeObject(p2);
oos.close();
}

}