小菜成长记(四)--代理模式_代理模式小菜送花-优快云博客

本文链接：https://blog.youkuaiyun.com/ssqfzc/article/details/79483523

本文介绍了一个简单的送花程序设计案例，通过定义SchoolGirl和Pursuit类实现送礼物功能，并进一步采用代理设计模式优化程序结构。

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写一个简单的送花程序

public class Program {
    public static void main(String[] args) {
        SchoolGirl girl = new SchoolGirl();
        girl.setName("jiaojiao");
        Pursuit xiaozhu = new Pursuit(girl);
        xiaozhu.giveDolls();
        xiaozhu.giveFlowers();
    }
}

class SchoolGirl {
    private String name;
    public String getName() {
        return name;
    }

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

class Pursuit {
    private SchoolGirl mm;
    public Pursuit(SchoolGirl mm) {
        this.mm = mm;
    }

    public void giveDolls(){
        System.out.println(mm.getName() + "送你洋娃娃");
    }

    public void giveFlowers() {
        System.out.println(mm.getName() + "送你鲜花");
    }
}

使用代理设计模式

public class Program {
    public static void main(String[] args) {
        SchoolGirl girl = new SchoolGirl();
        girl.setName("jiaojiao");
        Proxy proxy = new Proxy(girl);
        proxy.giveDolls();
        proxy.giveFlowers();
    }
}

interface GiveGift{
    void giveDolls();
    void giveFlowers();
}

class SchoolGirl {
    private String name;
    public String getName() {
        return name;
    }

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

class Pursuit implements GiveGift{
    private SchoolGirl mm;
    public Pursuit(SchoolGirl mm) {
        this.mm = mm;
    }

    public void giveDolls(){
        System.out.println(mm.getName() + "送你洋娃娃");
    }

    public void giveFlowers() {
        System.out.println(mm.getName() + "送你鲜花");
    }
}

class Proxy implements GiveGift{
    private Pursuit gg;

    public Proxy(SchoolGirl mm) {
        gg = new Pursuit(mm);
    }

    @Override
    public void giveDolls() {
        gg.giveDolls();
    }

    @Override
    public void giveFlowers() {
        gg.giveFlowers();
    }
}