diff --git a/src/main/resources/mapper/UserCourseHourRecordMapper.xml b/src/main/resources/mapper/UserCourseHourRecordMapper.xml
index 2331146..f2038dc 100644
--- a/src/main/resources/mapper/UserCourseHourRecordMapper.xml
+++ b/src/main/resources/mapper/UserCourseHourRecordMapper.xml
@@ -42,7 +42,7 @@
         SELECT `course_id`, count(1) AS `total`
         FROM `user_course_hour_records`
         WHERE `user_id` = #{userId}
-        <if test="courseIds != null and #{courseIds}.size() > 0">
+        <if test="courseIds != null and courseIds.size > 0">
             AND `course_id` IN (<foreach collection="courseIds" item="courseId" separator=",">#{courseId}</foreach>)
         </if>
         <if test="isFinished != null">
@@ -120,7 +120,7 @@
         SELECT `user_id`, count(1) AS `total`
         FROM `user_course_hour_records`
         WHERE `course_id` = #{courseId}
-        <if test="userIds != null and #{userIds}.size() > 0">
+        <if test="userIds != null and userIds.size > 0">
             AND `user_id` IN (<foreach collection="userIds" item="userId" separator=",">#{userId}</foreach>)
         </if>
         <if test="isFinished != null">
@@ -135,14 +135,14 @@
         INNER JOIN (SELECT `t2`.`user_id`, min(`t2`.`created_at`) as `created_at`
         FROM `user_course_hour_records` AS `t2`
         WHERE `t2`.`course_id` = #{courseId}
-        <if test="userIds != null and #{userIds}.size() > 0">
+        <if test="userIds != null and userIds.size > 0">
             AND `t2`.`user_id` IN (<foreach collection="userIds" item="userId" separator=",">#{userId}</foreach>)
         </if>
         GROUP BY `t2`.`user_id`) AS `t3`
         ON `t3`.`user_id` = `t1`.`user_id`
         AND `t3`.`created_at` = `t1`.`created_at`
         WHERE `t1`.`course_id` = #{courseId}
-        <if test="userIds != null and #{userIds}.size() > 0">
+        <if test="userIds != null and userIds.size > 0">
             AND `t1`.`user_id` IN (<foreach collection="userIds" item="userId" separator=",">#{userId}</foreach>)
         </if>
     </select>