设计模式-简单工厂模式（Simple Factory）-白红宇

设计模式-简单工厂模式（Simple Factory）

阅读量：7229 次

发布时间：2019-06-29

本文共 1220 字，大约阅读时间需要 4 分钟。

分为：一个抽象类（或接口）、实现抽象类、工厂类

Product.java

 1 package  cn.foxeye.design.simple.factory;  2   3  public   interface  Product {  4   5   void  operation();  6   7 }  8

Product1.java

  1 package  cn.foxeye.design.simple.factory;   2    3  public   class  Product1  implements  Product {   4    5  @Override   6   public   void  operation() {   7  System.out.println( " 产品1执行操作 " );   8  }   9   10 }  11

Product2.java

  1 package  cn.foxeye.design.simple.factory;   2    3  public   class  Product2  implements  Product {   4    5  @Override   6   public   void  operation() {   7  System.out.println( " 产品2执行操作 " );   8  }   9   10 }  11

ProductFactory.java

  1 package  cn.foxeye.design.simple.factory;   2    3  public   class  ProductFactory {   4    5   public   static  Product createProduct(String productName) {   6   if ( " 1 " .equals(productName)) {   7   return   new  Product1();   8  }  else   if ( " 2 " .equals(productName)) {   9   return   new  Product2();  10  }  11   12   return   null ;  13   14  }  15   16 }  17

Main.java

  1 package  cn.foxeye.design.simple.factory;   2    3  public   class  Main {   4    5   public   static   void  main(String[] args) {   6  Product product1  =  ProductFactory.createProduct( " 1 " );   7  product1.operation();   8  Product product2  =  ProductFactory.createProduct( " 2 " );   9  product2.operation();  10  }  11   12 }  13