import java.io.ByteArrayInputStream; import java.io.ByteArrayOutputStream; import java.io.IOException; import java.io.ObjectInputStream; import java.io.ObjectOutputStream; public class DepthClone {     public  final static Object objectCopy(Object oldObj) {         Object newObj = null;         try {             ByteArrayOutputStream bo = new ByteArrayOutputStream();             ObjectOutputStream oo = new ObjectOutputStream(bo);             oo.writeObject(oldObj);//源对象             ByteArrayInputStream bi = new ByteArrayInputStream(bo.toByteArray());             ObjectInputStream oi= new ObjectInputStream(bi);             newObj = oi.readObject();//目标对象         } catch (IOException e) {             e.printStackTrace();         }catch (ClassNotFoundException e) {             e.printStackTrace();         }         return newObj;     } }

import java.io.Serializable; public class SimpleClone implements Cloneable ,Serializable {     private static final long serialVersionUID = -7552721152118950502L;     public    String s = null;     public Object o = null;     public CloneObject cloneObject = null;          public SimpleClone(CloneObject cloneObject) {         this.cloneObject = cloneObject;     }     public Object clone() {         SimpleClone newSimpleClone =  null;         try {             /* 浅克隆 */             newSimpleClone = (SimpleClone)super.clone();         } catch (CloneNotSupportedException e) {             e.printStackTrace();         }         return newSimpleClone;     } }

import java.io.Serializable; public class CloneObject implements Serializable{     private static final long serialVersionUID = 4332788486669750696L;     private String name ;     public String getName() {         return name;     }     public void setName(String name) {         this.name = name;     } }

public class TestClone {     public static void main(String[] arg) {         CloneObject obj1 = new CloneObject();         obj1.setName("cloneOne");         CloneObject obj2 = new CloneObject();         obj2.setName("cloneTwo");         SimpleClone simpleClone1 = new SimpleClone(obj1);         SimpleClone simpleClone2 = new SimpleClone(obj2);         simpleClone1.s = "simpleClone1";         simpleClone1.o = "simpleClone1Object";         //simpleClone2 = (SimpleClone)simpleClone1.clone();         simpleClone2 = (SimpleClone)DepthClone.objectCopy(simpleClone1);         /* 如果是浅克隆， simpleClone1中的cloneObject会随着simpleClone2的cloneObject改变面改变*/         simpleClone2.cloneObject.setName("cloneThree");         System.out.println(simpleClone1.cloneObject.getName());         System.out.println(simpleClone2.cloneObject.getName());     } }