背景

我们之前在开发minicloud时遇见魔法数或者常量字符创都写死了，这样在开发场景是不允许的，所以本篇我们将散乱在各处的常量都抽取出来放入常量模块中，本篇主要是介绍篇，主要是为了后续源码开放后，方便大家了解

主要重构模块

feign 模块remote类

这里主要是因为需要写固定的服务名，比如：auth,upms,goods,order等全量服务名分别为：
mini-cloud-authentication-center
mini-cloud-upms-center-biz
mini-cloud-simulate-goods-biz
mini-cloud-simulate-order-biz

interceptor 拦截器类

拦截器经常会需要一些header 的key,和value,所以也是常量的重点，比如:

configration 配置文件中

配置文件经常需要注入一些常量数据，比如：

常量模块与源码如下：

添加constant模块

加入到mini-cloud-common-dependencies中

多租户模块中也可以直接使用

common-dependencies 和common-constant模块都需要install

源码

将常量区分成几个模块，便于维护，目前区分为如下几个模块，大家可以根据自己项目需求自行扩展：
用户模块
licence模块
服务模块
共通模块
header模块
操作模块
rocketmq等

/*** @Author：alan.wang* @Package：com.minicloud.common.data.constant* @Project：mini-cloud* @name：MiniCloudCommonConstant* @Filename：MiniCloudCommonConstant*/
public final class MiniCloudCommonConstant {public static final class UserConstant {public static final String DETAILS_USER = "user_info";public static final String CLIENT_CREDENTIALS  ="client_credentials";public static final String ACTIVE = "active";}public static final class LicenceConstant {public static final String AUTHOR = "author";public static final String ALAN_WANG = "alan.wang";public static final String CONTACT = "contact";public static final String DOMAIN = "minicloud.blog.csdn.net";public static final String CONTACT_WECHAT = "unix-blacker";public static final String LICENSE = "license";}public static final class ServerConstant {public static final String MINI_CLOUD_SERVER_AUTH = "mini-cloud-authentication-center";public static final String MINI_CLOUD_SERVER_UPMS = "mini-cloud-upms-center-biz";public static final String MINI_CLOUD_SERVER_GOODS = "mini-cloud-simulate-goods-biz";public static final String MINI_CLOUD_SERVER_ORDER = "mini-cloud-simulate-order-biz";}public static final class CommonConstant {public static final String TENANT_ID = "tenantId";public static final String FEIGN = "feign";}public static final class RequestHeaderConstant {public static final String FEIGN_REQUEST = "feign-request";public static final String VERSION = "version";public static final String AUTHORIZATION = "Authorization";public static final String CONTENT_TYPE  = "content-type";}public static final class OptionConstant {public static final Integer SUCCESS = 0;public static final  Integer FAIL = 1;}public static final class RocketMQConstant {public static final String IO_lOG = "iolog";}
}