2018-11-28 13:33:46 359浏览
今天扣丁学堂Java培训老师给大家介绍一下关于JAVA工作流优雅实现的方式详解。首先大家肯定用过责任链模式,也用过模板模式实现类工作流的方式,但是对比这个工具,逊色不少,不卖关子了,就是ApacheCommonsChain,它是Command模式与责任链模式的综合体。1、ApacheCommonsChain中的角色有:chain、context、command。
<dependency> <groupId>commons-chain</groupId> <artifactId>commons-chain</artifactId> <version>1.2</version> </dependency>
/** * 退商旅卡Cash * Created by 一代天骄 on 2018/7/1. */ @Slf4j public class RefundBusinessCardCommand implements Command{ public boolean execute(Context context) throws Exception { RefundContext refundContext = (RefundContext) context; log.info("orderId:{} 退款开始,第一步:退商旅卡,金额:{}",refundContext.getOrderId(),"10"); return false; } }
/** * 退现金 * Created by 一代天骄 on 2018/7/1. */ @Slf4j public class RefundCashCommand implements Command { public boolean execute(Context context) throws Exception { RefundContext refundContext = (RefundContext) context; log.info("orderId:{}退款开始,第二步:退现金,金额:{}",refundContext.getOrderId(),"5"); return false; } }
/** * 退优惠券 * Created by 一代天骄 on 2018/7/1. */ @Slf4j public class RefundPromotionCommand implements Command{ public boolean execute(Context context) throws Exception { RefundContext refundContext = (RefundContext) context; log.info("orderId:{} 退款开始,第二步:退优惠券,金额:{}",refundContext.getOrderId(),"20"); return false; } }
/** * Created by 一代天骄 on 2018/7/1. */ @Data public class RefundContext extends ContextBase { /** * 订单号 */ private Integer orderId; }
/** * * 退票的工作流实现 * Created by 一代天骄 on 2018/7/1. */ public class RefundTicketChain extends ChainBase { public void init() { //退商旅卡 this.addCommand(new RefundBusinessCardCommand()); //退现金 this.addCommand(new RefundCashCommand()); //退优惠券 this.addCommand(new RefundPromotionCommand()); } public static void main(String[] args) throws Exception { RefundTicketChain refundTicketChain = new RefundTicketChain(); refundTicketChain.init(); RefundContext context = new RefundContext(); context.setOrderId(1621940242); refundTicketChain.execute(context); } }
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