Simple Factory Pattern
很简单的工厂模式
简单工厂模式 : 封装创建对象的逻辑
看代码
定义对象:
public class Product { private String name; private String price; private String type; public Product(String name, String price, String type) { this.name = name; this.price = price; this.type = type; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getPrice() { return price; } public void setPrice(String price) { this.price = price; } public String getType() { return type; } public void setType(String type) { this.type = type; } @Override public String toString() { return "Product{" + "name='" + name + ''' + ", price='" + price + ''' + ", type='" + type + ''' + '}'; } }
定义工厂,用静态方法封装创建对象的逻辑:
public class SimpleFactory { public static Product createProduct(String type) { if ("food".equals(type)) { return new Product("Oreo", "10元", "food"); } else if ("drink".equals(type)) { return new Product("Cola", "3元", "drink"); } else { return null; } } }
调用工厂:
public class Main { public static void main(String[] args) { System.out.println("---生产食物---"); System.out.println(SimpleFactory.createProduct("food")); System.out.println("---生产饮料---"); System.out.println(SimpleFactory.createProduct("drink")); } }
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