Object流 序列化

import java.io.*;

public class TestObjectIO {
 public static void main(String args[]) throws Exception {
  T t = new T();
  t.k = 8;
  FileOutputStream fos = new FileOutputStream("d:/java/io/testobjectio.dat");
  ObjectOutputStream oos = new ObjectOutputStream(fos);
  oos.writeObject(t);
  oos.flush();
  oos.close();
  
  FileInputStream fis = new FileInputStream("d:/java/io/testobjectio.dat");
  ObjectInputStream ois = new ObjectInputStream(fis);
  T tReaded = (T)ois.readObject();
  System.out.println(tReaded.i + " " + tReaded.j + " " + tReaded.d + " " + tReaded.k);
  
 }
}

class T
 implements Serializable
{
 int i = 10;
 int j = 9;
 double d = 2.3;
 transient int k = 15;
}

 

另外externalizable接口，用于自定义序列化方式