新建乐团增加乐团增加学生逻辑

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

@@ -317,7 +317,7 @@
 
     <!-- 获取乐团的学生 -->
     <select id="findMusicGroupStudent" resultMap="StudentRegistration">
-        SELECT * FROM student_registration WHERE music_group_id_ = #{musicGroup}
+        SELECT * FROM student_registration WHERE music_group_id_ = #{musicGroupId}
         <if test="actualSubjectId != null and actualSubjectId !=''">
             AND actual_subject_id_ = #{actualSubjectId}
         </if>