java串行序列化进行深拷贝

import java.io.*;
//Serialization is time-consuming
class Professor2 implements Serializable {
    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    String name;
    int age;
 
    Professor2(String name, int age) {
        this.name = name;
        this.age = age;
    }
}
 
class Student2 implements Serializable {
    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    String name;// 常量对象。
    int age;
    Professor2 p;// 学生1和学生2的引用值都是一样的。
 
    Student2(String name, int age, Professor2 p) {
        this.name = name;
        this.age = age;
        this.p = p;
    }
 
    public Object deepClone() throws IOException, OptionalDataException,
            ClassNotFoundException {
        // 将对象写到流里
        ByteArrayOutputStream bo = new ByteArrayOutputStream();
        ObjectOutputStream oo = new ObjectOutputStream(bo);
        oo.writeObject(this);
        // 从流里读出来
        ByteArrayInputStream bi = new ByteArrayInputStream(bo.toByteArray());
        ObjectInputStream oi = new ObjectInputStream(bi);
        return (oi.readObject());
    }
 
}
 
public class DeepCopy2 {
 
    /**
     * @param args
     */
    public static void main(String[] args) throws OptionalDataException,
            IOException, ClassNotFoundException {
        long t1 = System.currentTimeMillis();
        Professor2 p = new Professor2("wangwu", 50);
        Student2 s1 = new Student2("zhangsan", 18, p);
        Student2 s2 = (Student2) s1.deepClone();
        s2.p.name = "lisi";
        s2.p.age = 30;
        System.out.println("name=" + s1.p.name + "," + "age=" + s1.p.age); // 学生1的教授不改变。
        long t2 = System.currentTimeMillis();
        System.out.println(t2-t1);
    }
 
}
但是串行化却很耗时，在一些框架中，我们便可以感受到，它们往往将对象进行串行化后进行传递，耗时较多。