try
{
os.writeObject(stu);//过滤流类实例对象 os调用writeObject()方法写入stu数据。
os.close();//关闭流。释放资源。
}
catch (IOException e)
{
System.out.println(e.getMessage());
}
stu=null;
FileInputStream fi=new FileInputStream("mytext.txt");
ObjectInputStream si=new ObjectInputStream(fi);
try
{
stu=(Student)si.readObject();//利用类中的readObject()和 writeObject()方法可以读/写对象流。
si.close();
}
catch (IOException e)
{
System.out.println(e.getMessage());
}
System.out.println("ID IS "+stu.id);
System.out.println("name is "+stu.name);
System.out.println("age is "+stu.age);
System.out.println("department is "+stu.department);
}
}
class Student implements Serializable
{
transient int id;//transient 修饰的不能保存和读取,输出结果为0.
transient String name;
static int age;//奇怪,static修饰的可以存储读取,有待解决。
static String department;
public Student(int id,String name,int age,String department)
{
this.id=id;
this.name=name;
this.age=age;
this.department=department;
}
}
百度到的一个例子:
import java.io.*;
class Person implements Serializable
{
private String name ;
/* transient*/ private int age ;
public static String address;/**/
public Person(String name, int age)
{
this.name = name ;
this.age = age ;
}
//覆写toString()方法
public String toString()
{
return "姓名 =" + this.name +", 年龄 =" + this.age +",住址="+address;
}
}
public class serializableDemo
{
public static void main(String[] args) throws FileNotFoundException, IOException, ClassNotFoundException
{
//1.先序列化
Person per = new Person("gzg",26);
per.address = "西门";
ser(per);
//2.反序列化
System.out.println(dser());
}
//建立一个对象序列化的方法
public static void ser(Person per) throws FileNotFoundException, IOException
{
ObjectOutputStream oos = null;
//序列化时,保存的文件的后缀名随便取,不是关键
oos = new ObjectOutputStream(new FileOutputStream(new File("d://gzg4.jpg")));
oos.writeObject(per);
oos.close();
}
//建立一个反序列化的方法
public static Person dser() throws FileNotFoundException, IOException, ClassNotFoundException
{
ObjectInputStream ois = null;
ois = new ObjectInputStream(new FileInputStream(new File("d://gzg4.jpg")));
Object obj = null;
obj = ois.readObject();
return (Person)obj;
}
}