用dw制作个介绍家乡网站,学生个人简历,营销型企业网站建设方案,上海黑马程序员培训机构地址《重学Java设计模式》之 建造者模式
《重学Java设计模式》之 原型模式
《重学Java设计模式》之 单例模式 模拟发奖多种商品 工程结构 奖品发放接口
package com.yys.mes.design.factory.store;public interface ICommodity {/*** Author Sherry* Date 14:20 2024/11/6**/voi…《重学Java设计模式》之 建造者模式
《重学Java设计模式》之 原型模式
《重学Java设计模式》之 单例模式 模拟发奖多种商品 工程结构 奖品发放接口
package com.yys.mes.design.factory.store;public interface ICommodity {/*** Author Sherry* Date 14:20 2024/11/6**/void sendCommodity(String uId, String commodityId, String bizId);
}购物卡发放实现类
package com.yys.mes.design.factory.store.impl;import com.yys.mes.design.factory.store.ICommodity;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;Service
Slf4j
public class CardCommodityService implements ICommodity {Overridepublic void sendCommodity(String uId, String commodityId, String bizId) {//购物卡log.info(购物卡发放成功);}
}优惠券发放实现类
package com.yys.mes.design.factory.store.impl;import com.yys.mes.design.factory.store.ICommodity;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;import java.util.Map;Service
Slf4j
public class CouponCommodityService implements ICommodity {Overridepublic void sendCommodity(String uId, String commodityId, String bizId) {//优惠券发放log.info(优惠券发放成功);}
}实物发放实现类
package com.yys.mes.design.factory.store.impl;import com.yys.mes.design.factory.store.ICommodity;
import lombok.extern.slf4j.Slf4j;
import org.springframework.stereotype.Service;Service
Slf4j
public class GoodsCommodityService implements ICommodity {Overridepublic void sendCommodity(String uId, String commodityId, String bizId) {//实物商品log.info(实物商品发放成功);}
}奖品类型工厂
通过 MapString, ICommodity 来存储所有的实现类。Spring 会自动将所有实现了 ICommodity 接口的 Bean 注入到这个 Map 中。我们可以通过传入类型例如 card来获取对应的实现类。
package com.yys.mes.design.factory.config;import com.yys.mes.design.factory.store.ICommodity;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;import java.util.Map;Component
public class CommodityFactory {private final MapString, ICommodity commodityServices;Autowiredpublic CommodityFactory(MapString, ICommodity commodityServices) {this.commodityServices commodityServices;}// 根据类型返回对应的ICommodity实现public ICommodity getCommodityService(String type) {ICommodity commodityService commodityServices.get(type CommodityService);if (commodityService null) {throw new IllegalArgumentException(未知的奖品类型: type);}return commodityService;}
}调用工厂
package com.yys.mes.design.factory.config;import com.yys.mes.design.factory.store.ICommodity;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;Component
public class StoreFactory {private final CommodityFactory commodityFactory;Autowiredpublic StoreFactory(CommodityFactory commodityFactory) {this.commodityFactory commodityFactory;}public void distributeCommodity(String type, String uId, String commodityId, String bizId) {// 通过工厂获取对应的ICommodity实现ICommodity commodityService commodityFactory.getCommodityService(type);commodityService.sendCommodity(uId, commodityId, bizId);}
}测试验证
package com.yys.mes.design.factory.Controller;import com.yys.mes.design.factory.config.StoreFactory;
import jakarta.annotation.Resource;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;RestController
RequestMapping(/send)
public class ExampleController {Resourceprivate StoreFactory storeFactory;GetMapping(/distribute)public String distributeCommodity(RequestParam String type, RequestParam String uId,RequestParam String commodityId, RequestParam String bizId) {storeFactory.distributeCommodity(type, uId, commodityId, bizId);return 奖品发放成功!;}
}
