Mapper.xml 文件如何读取 静态变量 静态方法

包名:com.bianmirj.util
类名:DateUtil
静态变量:CURRENT_YEAR
静态方法:sLeapYear

<select id="login" resultType="User">
        select id, username, password
        from user
        order by ${@com.bianmirj.util.DateUtil@CURRENT_YEAR} desc
#     order by ${@com.bianmirj.util.DateUtil@sLeapYear('username')} desc
</select>

package com.bianmirj.util;

public class DateUtil {

    public static final String CURRENT_YEAR = "id";

    public static String sLeapYear(String who) {
        return who;
    }
}