设计模式：创建型 - 原型模式-优快云博客

本文深入探讨了Java中对象的深复制与浅复制概念。通过具体示例对比了两种复制方式下对象属性的变化，展示了Work类在实现Cloneable接口后的不同行为。浅复制仅复制对象本身，而深复制会递归地复制所有成员变量，包括对象引用。

JAVA：

浅复制：Work 类中数据不会被克隆

class ProtoType implements Cloneable{
    private String id;
    private Work work;

    public String getId() {return id;}
    public void setId(String id) {this.id = id;}
    public Work getWork() {return work;}
    public void setWork(Work work) {this.work = work;}

    @Override
    protected Object clone() throws CloneNotSupportedException {
        return super.clone();
    }
}

class Work{
    private String name;

    public String getName() {return name;}
    public void setName(String name) {this.name = name;}
}

深复制：

class Work implements Cloneable{
    private String name;

    public String getName() {return name;}
    public void setName(String name) {this.name = name;}

    // Work 也实现 Cloneable 类
    @Override
    protected Object clone() throws CloneNotSupportedException {return super.clone();}
}
class ProtoType implements Cloneable{
    private String id;
    private Work work;

    public String getId() {return id;}
    public void setId(String id) {this.id = id;}
    public Work getWork() {return work;}
    public void setWork(Work work) {this.work = work;}

    @Override
    protected Object clone() throws CloneNotSupportedException {
        // work利用引用地址克隆
        ProtoType protoType = (ProtoType)super.clone();
        protoType.setWork((Work)protoType.getWork().clone());
        return protoType;
    }
}