// ?對象序列化后,保存到文件中去

String file = "demo/obj.dat";

//實例化一個ObjectOutputStream,參數(shù)是一個文件字節(jié)流FileOutputStream

ObjectOutputStream oos = new ObjectOutputStream(

new FileOutputStream(file));

//實例化一個對象

Student stu = new Student("10001", "小明", 20);

//寫入文件

oos.writeObject(stu);

oos.flush();

oos.close();

//反序列化

String file = "demo/obj.dat";

ObjectInputStream ois = new ObjectInputStream(

new FileInputStream(file));

Student stu = (Student)ois.readObject();

System.out.println(stu);

ois.close();