来吧，用设计模式来干掉 if-else 啊~

<div id="js_content">
点击上方“芋道源码”，选择“<a href="http://mp.weixin.qq.com/s?__biz=MzUzMTA2NTU2Ng%3D%3D&chksm=fa49755dcd3efc4bf4f566fbbbf74c191d0b79f2d3222fd211bc52d80b5ef127f52b1158ed71&idx=3&mid=2247486188&scene=21&sn=f160d91ea23e5113e6077c500a2e30c4#wechat_redirect">设为星标</a>”
管她前浪，还是后浪？
能浪的浪，才是好浪！ 
每天 8:55 更新文章，每天掉亿点点头发...
源码精品专栏
<ul><li><a href="http://mp.weixin.qq.com/s?__biz=MzUzMTA2NTU2Ng%3D%3D&chksm=fa496f8ecd3ee698f4954c00efb80fe955ec9198fff3ef4011e331aa37f55a6a17bc8c0335a8&idx=1&mid=2247487551&scene=21&sn=18f64ba49f3f0f9d8be9d1fdef8857d9#wechat_redirect">原创 | Java 2020 超神之路，很肝~</a> </li><li><a href="http://mp.weixin.qq.com/s?__biz=MzUzMTA2NTU2Ng%3D%3D&chksm=fa497489cd3efd9f7298f5da6aad0c443ae15f398436aff57cb2b734d6689e62ab43ae7857ac&idx=1&mid=2247486264&scene=21&sn=475ac3f1ef253a33daacf50477203c80#wechat_redirect">中文详细注释的开源项目</a> </li><li><a href="https://mp.weixin.qq.com/s?__biz=MzUzMTA2NTU2Ng%3D%3D&chksm=fa497b56cd3ef2408f807e66e0903a5d16fbed149ef7374021302901d6e0260ad717d903e8d4&idx=1&mid=2247484647&scene=21&sn=9eb7e47d06faca20d530c70eec3b8d5c#wechat_redirect">RPC 框架 Dubbo 源码解析</a></li><li><a href="https://mp.weixin.qq.com/s?__biz=MzUzMTA2NTU2Ng%3D%3D&chksm=fa4979cfcd3ef0d9d2dd92d8d1bd8f1553abc6e2095a5d743e0b2c2afe4955ea2bbbd7a4b79d&idx=2&lang=zh_CN&mid=2247485054&scene=21&sn=9f3b85f7b8454634da6c5c2ded9b4dba&token=55862109#wechat_redirect">网络应用框架 Netty 源码解析</a> </li><li><a href="http://mp.weixin.qq.com/s?__biz=MzUzMTA2NTU2Ng%3D%3D&chksm=fa497481cd3efd97d9239f5eab060e49dea9876a6046eadba0effb878d2fb51f3ba5733e4c0b&idx=1&mid=2247486256&scene=21&sn=81daccd3fcd2953456c917630636fb26#wechat_redirect">消息中间件 RocketMQ 源码解析</a> </li><li><a href="http://mp.weixin.qq.com/s?__biz=MzUzMTA2NTU2Ng%3D%3D&chksm=fa497480cd3efd96fe17975b0b8b141e87fd0a62673e6a30b501460de80b3eb997056f09de08&idx=1&mid=2247486257&scene=21&sn=4d3c9c675f8833157641a2e0b48e498c#wechat_redirect">数据库中间件 Sharding-JDBC 和 MyCAT 源码解析</a></li><li><a href="http://mp.weixin.qq.com/s?__biz=MzUzMTA2NTU2Ng%3D%3D&chksm=fa497483cd3efd950514da5a37160e7fd07f0a96f39265cf7ba3721985e5aadbdcbe7aafc34a&idx=1&mid=2247486258&scene=21&sn=ae5665ae9c3002b53f87cab44948a096#wechat_redirect">作业调度中间件 Elastic-Job 源码解析</a></li><li><a href="http://mp.weixin.qq.com/s?__biz=MzUzMTA2NTU2Ng%3D%3D&chksm=fa497482cd3efd9402d71469f71863f71a6998b27e12ca2e00446b8178d79dcef0721d8e570a&idx=1&mid=2247486259&scene=21&sn=b023cf3dbf97e5da59db2f4ee632f5a6#wechat_redirect">分布式事务中间件 TCC-Transaction 源码解析</a></li><li><a href="http://mp.weixin.qq.com/s?__biz=MzUzMTA2NTU2Ng%3D%3D&chksm=fa497485cd3efd93937143a648bc1b530bc7d1f6f8ad4bf2ec112ffe34dee80b474605c22db0&idx=1&mid=2247486260&scene=21&sn=8f14c0c191d6f8df6eb34202f4ad9708#wechat_redirect">Eureka 和 Hystrix 源码解析</a></li><li><a href="http://mp.weixin.qq.com/s?__biz=MzUzMTA2NTU2Ng%3D%3D&chksm=fa497484cd3efd92352d6fb3d05ccbaebca2fafed6f18edbe5be70c99ba088db5c8a7a8080c1&idx=1&mid=2247486261&scene=21&sn=bd69f26aadfc826f6313ffbb95e44ee5#wechat_redirect">Java 并发源码</a></li></ul>
来源：cnblogs.com/DiDi516/p/11787257.html
<ul><li>前言</li><li>传统做法-if-else分支</li><li>策略模式+Map字典</li><li>责任链模式</li><li>策略模式+注解</li><li>小结</li></ul>
<hr>
<h1></h1>
<a href="https://mp.weixin.qq.com/s?__biz=MzUzMTA2NTU2Ng%3D%3D&chksm=fa496f8ecd3ee698f4954c00efb80fe955ec9198fff3ef4011e331aa37f55a6a17bc8c0335a8&idx=1&mid=2247487551&scene=21&sn=18f64ba49f3f0f9d8be9d1fdef8857d9#wechat_redirect"><img src="https://beijingoptbbs.oss-cn-beijing.aliyuncs.com/cs/5606289-de4414bde76020b2fecb4a5289bb4258"></a>
<h1>前言 </h1>
物流行业中，通常会涉及到EDI报文(XML格式文件)传输和回执接收，每发送一份EDI报文，后续都会收到与之关联的回执（标识该数据在第三方系统中的流转状态）。
这里枚举几种回执类型：MT1101、MT2101、MT4101、MT8104、MT8105、MT9999，系统在收到不同的回执报文后，会执行对应的业务逻辑处理。当然，实际业务场景并没有那么笼统，这里以回执处理为演示案例
模拟一个回执类
<pre class="blockcode"><code class="language-go">@Data
public class Receipt {

/**
* 回执信息
*/