一、对象反序列化流：ObjectInputStream

ObjectInputStream反序列化先前使用ObjectOutputStream编写的原始数据和对象

二、构造方法

ObjectInputStream(InputStream in)：创建从指定的InputStream读取的ObjectInputStream

三、反序列化对象的方法

Object readObject()：从ObjectInputStream读取一个对象

四、实例

public class Test1 {
    public static void main(String[] args) throws IOException, ClassNotFoundException {
        ObjectInputStream ois = new ObjectInputStream(new FileInputStream("oos.txt"));
        Object obj = ois.readObject();
        Student s = (Student) obj;
        System.out.println(s.getName()+","+s.getAge());
        ois.close();
    }
}