Merge branch 'activity' of http://120.27.238.55:7000/r/exchange into activity

xiaoyong931011

2021-04-06 bf68aa759bc3c0a858d80cb3d1ae1f1682cd6c94

 src/main/java/com/xcong/excoin/common/system/service/CommonService.java

@@ -8,4 +8,5 @@

    public boolean verifyCode(String account, String code);

    public String generateOrderNo(Long mid);
}