@Select注解使用like 模糊查询关键字用法

LIKE CONCAT(‘%’,#{模糊查询},‘%’)

@Select("SELECT DISTINCT(u.user_id) AS userId,u.user_name AS userName FROM user_info u " +
            "LEFT JOIN user_duty ud ON ud.user_id = u.user_id WHERE ud.duty_type = 'D' AND u.user_name LIKE CONCAT('%',#{username},'%')")