对象序列化 ObjectInputStream ObjectOutputStream

//Person类
public class Person implements Serializable{
//声明类的标识，也可以不写，系统会自动生成
static final long serialVersionUID = 42L;
private String name;
private int age;

public Person(String name,int age) {
this.name = name;
this.age = age;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}

//先写再读
public class ObjectStreamDemo {

public static void main(String[] args) throws Exception{
//      writeObj();
readObj();
}

public static void writeObj() throws IOException
{
ObjectOutputStream oos =
new ObjectOutputStream(new FileOutputStream("d:\\obj.txt"));
oos.writeObject(new Person("lisi",39));
oos.close();
}

public static void readObj() throws IOException, ClassNotFoundException
{
ObjectInputStream ois =
new ObjectInputStream(new FileInputStream("d:\\obj.txt"));
Person p = (Person) ois.readObject();
System.out.println("====person====");
System.out.println(p.getName());
System.out.println(p.getAge());
ois.close();
}

}

transient private int age;