1、试听课

mec-biz/src/main/java/com/ym/mec/biz/service/impl/TeacherCourseRewardServiceImpl.java

@@ -17,7 +17,10 @@ import org.springframework.transaction.annotation.Isolation;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.util.CollectionUtils;
 
+import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
+import java.util.Map;
 
 @Service
 public class TeacherCourseRewardServiceImpl extends BaseServiceImpl<Long, TeacherCourseReward> implements TeacherCourseRewardService {