Mybatis引用静态常量或者枚举类型

引用枚举
https://blog.csdn.net/u010714901/article/details/79541861

${@com.xxx.pojo.enumerate.DataStatusEnum@DATA_STATUS_ENABLE.getStatusCode()}

引用静态常量和静态方法：

https://blog.csdn.net/chenliang2623/article/details/100840838

设置全局变量
https://blog.csdn.net/ardo_pass/article/details/86737147