java序列化和反序列化

1.首先要建一个类，该类要实现Serializable接口
import java.io.Serializable;

public class Student implements Serializable{
String name;
int age;
public Student(String name, int age) {
super();
this.name = name;
this.age = age;
}
}
2.测试使用
//序列化

//实例化对象
Student s1 = new Student(“tom”,22);
//把对象保存到本地，用字节输出流
ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(“D:\ad\mmm.aaa”));
oos.writeObject(s1);
oos.close();

//反序列化
FileInputStream fi=new FileInputStream(“D:\ad\mmm.aaa”);
ObjectInputStream ob=new ObjectInputStream(fi);

    Object obj=ob.readObject();    fi.close();    ob.close();    Student stu=(Student)obj;    System.out.println(stu.name);    System.out.println(stu.age);

//如果报异常，检查一下你是否实现了Serializable接口