摘要: 实例 基本应用 引入依赖 <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> Controller 中需要校验的 阅读全文
posted @ 2022-04-24 11:16 散落人间 阅读(39) 评论(0) 推荐(0) 编辑
interface food{} class A implements food{} class B implements food{} class C implements food{} public class StaticFactory { private StaticFactory(){} public static food getA(){ return new A(); } public static food getB(){ return new B(); } public static food getC(){ return new C(); } } class Client{ //客户端代码只需要将相应的参数传入即可得到对象 //用户不需要了解工厂类内部的逻辑。 public void get(String name){ food x = null ; if ( name.equals("A")) { x = StaticFactory.getA(); }else if ( name.equals("B")){ x = StaticFactory.getB(); }else { x = StaticFactory.getC(); } } }