}
}
上图为浅复制。
上图为深复制。
第二种：实现深复制的方法是通过串行化和反串行化
利用对象串行化的特性：一个对象如果进行串行化则会将它所引用的对象都进行串行化。所以它的这个特性正好符合深度复制的要求。
例如以下示例：
package com.lcq.clone;
/**
*
* 类名：CloneTest2
* 功能：利用对象的序列化和反序列化实现对象的深复制
* 时间：
*
* @version 1.0
* @author lcq
*
*/
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
public class CloneTest2 {
public static void main(String[] args) throws Exception {
Teacher2 teacher2 = new Teacher2();
teacher2.setAge(40);
teacher2.setName("teacher zhang");
Student2 stu2 = new Student2();
stu2.setAge(20);
stu2.setName("student zhangsan");
stu2.setTeacher2(teacher2);
System.out.println("------------最初的学生对象信息-----------------");
System.out.println(stu2.getAge());
System.out.println(stu2.getName());
System.out.println(stu2.getTeacher2().getAge());
System.out.println(stu2.getTeacher2().getName());
System.out.println("------------复制的学生对象信息-----------------");
Student2 stu3 = (Student2)stu2.deepClone();
System.out.println(stu3.getAge());
System.out.println(stu3.getName());
System.out.println(stu3.getTeacher2().getAge());
System.out.println(stu3.getTeacher2().getName());
System.out.println("------------修改复制对象后原学生对象信息-----------------");
stu3.getTeacher2().setAge(30);
stu3.getTeacher2().setName("teacher change");
System.out.println(stu2.getTeacher2().getAge());
System.out.println(stu2.getTeacher2().getName());
}
}
class Teacher2 implements Serializable{
/**
*
*/
private static final long serialVersionUID = 502125658040435679L;
private int age;
private String name;
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
class Student2 implements Serializable{
/**
*
*/
private static final long serialVersionUID = -3893457198772401952L;
private int age;
private String name;
private Teacher2 teacher2;
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Teacher2 getTeacher2() {
return teacher2;
}
public void setTeacher2(Teacher2 teacher2) {
this.teacher2 = teacher2;
}
//定义深复制方法
public Object deepClone() throws Exception{
//将当前对象序列化
ByteArrayOutputStream bao = new ByteArrayOutputStream();
ObjectOutputStream oos = new ObjectOutputStream(bao);
oos.writeObject(this);