Merge remote-tracking branch 'origin/master'

mec-biz/src/main/resources/config/mybatis/StudentAttendanceMapper.xml

@@ -396,7 +396,7 @@
             WHERE class_group_id_=#{classGroupId}
     </select>
     <select id="findByStatusAndCourseScheduleId" resultMap="StudentAttendance">
-        SELECT * FROM student_attendance sa WHERE course_schedule_id_ = #{courseScheduleId} AND user_id_ = #{userId} LIMIT 1
+        SELECT * FROM student_attendance sa WHERE course_schedule_id_ = #{courseScheduleId} AND user_id_ = #{userId} LIMIT 1 FOR UPDATE
     </select>
 
     <select id="queryNoSignStudentRecord" resultMap="StudentAttendance">