设计模式——抽象工厂模式（Abstract Factory Pattern）

抽象工厂模式提供了一个接口，用于创建相关或依赖对象的家族，而不需要明确指定具体类。

类图

（图片源于网络）

代码实现（Java）

由于代码较多，不在此展示，而存于附件。

测试代码

// PizzaTestDrive.java
public class PizzaTestDrive {
           
    public static void main(String[] args) {
        PizzaStore nyStore = new NYPizzaStore();
        PizzaStore chicagoStore = new ChicagoPizzaStore();
           
        Pizza pizza = nyStore.orderPizza("cheese");
        System.out.println("Ethan ordered a " + pizza + "\n");
           
        pizza = chicagoStore.orderPizza("cheese");
        System.out.println("Joel ordered a " + pizza + "\n");
        pizza = nyStore.orderPizza("clam");
        System.out.println("Ethan ordered a " + pizza + "\n");
           
        pizza = chicagoStore.orderPizza("clam");
        System.out.println("Joel ordered a " + pizza + "\n");
        pizza = nyStore.orderPizza("pepperoni");
        System.out.println("Ethan ordered a " + pizza + "\n");
           
        pizza = chicagoStore.orderPizza("pepperoni");
        System.out.println("Joel ordered a " + pizza + "\n");
        pizza = nyStore.orderPizza("veggie");
        System.out.println("Ethan ordered a " + pizza + "\n");
           
        pizza = chicagoStore.orderPizza("veggie");
        System.out.println("Joel ordered a " + pizza + "\n");
    }
}

运行效果

--- Making a New York Style Cheese Pizza --- Preparing New York Style Cheese Pizza Bake for 25 minutes at 350 Cutting the pizza into diagonal slices Place pizza in official PizzaStore box Ethan ordered a ---- New York Style Cheese Pizza ---- Thin Crust Dough Marinara Sauce Reggiano Cheese --- Making a Chicago Style Cheese Pizza --- Preparing Chicago Style Cheese Pizza Bake for 25 minutes at 350 Cutting the pizza into diagonal slices Place pizza in official PizzaStore box Joel ordered a ---- Chicago Style Cheese Pizza ---- ThickCrust style extra thick crust dough Tomato sauce with plum tomatoes Shredded Mozzarella --- Making a New York Style Clam Pizza --- Preparing New York Style Clam Pizza Bake for 25 minutes at 350 Cutting the pizza into diagonal slices Place pizza in official PizzaStore box Ethan ordered a ---- New York Style Clam Pizza ---- Thin Crust Dough Marinara Sauce Reggiano Cheese Fresh Clams from Long Island Sound --- Making a Chicago Style Clam Pizza --- Preparing Chicago Style Clam Pizza Bake for 25 minutes at 350 Cutting the pizza into diagonal slices Place pizza in official PizzaStore box Joel ordered a ---- Chicago Style Clam Pizza ---- ThickCrust style extra thick crust dough Tomato sauce with plum tomatoes Shredded Mozzarella Frozen Clams from Chesapeake Bay --- Making a New York Style Pepperoni Pizza --- Preparing New York Style Pepperoni Pizza Bake for 25 minutes at 350 Cutting the pizza into diagonal slices Place pizza in official PizzaStore box Ethan ordered a ---- New York Style Pepperoni Pizza ---- Thin Crust Dough Marinara Sauce Reggiano Cheese Garlic, Onion, Mushrooms, Red Pepper Sliced Pepperoni --- Making a Chicago Style Pepperoni Pizza --- Preparing Chicago Style Pepperoni Pizza Bake for 25 minutes at 350 Cutting the pizza into diagonal slices Place pizza in official PizzaStore box Joel ordered a ---- Chicago Style Pepperoni Pizza ---- ThickCrust style extra thick crust dough Tomato sauce with plum tomatoes Shredded Mozzarella Black Olives, Spinach, Eggplant Sliced Pepperoni --- Making a New York Style Veggie Pizza --- Preparing New York Style Veggie Pizza Bake for 25 minutes at 350 Cutting the pizza into diagonal slices Place pizza in official PizzaStore box Ethan ordered a ---- New York Style Veggie Pizza ---- Thin Crust Dough Marinara Sauce Reggiano Cheese Garlic, Onion, Mushrooms, Red Pepper --- Making a Chicago Style Veggie Pizza --- Preparing Chicago Style Veggie Pizza Bake for 25 minutes at 350 Cutting the pizza into diagonal slices Place pizza in official PizzaStore box Joel ordered a ---- Chicago Style Veggie Pizza ---- ThickCrust style extra thick crust dough Tomato sauce with plum tomatoes Shredded Mozzarella Black Olives, Spinach, Eggplant