调课顶课调整

src/main/java/com/xjrsoft/module/courseTable/service/impl/CourseTableServiceImpl.java

@@ -457,6 +457,9 @@ public class CourseTableServiceImpl extends ServiceImpl<CourseTableMapper, Cours
             } else if (CourseAdjustTypeEnum.courseSubstitute.getCode().equals(courseAdjust.getAdjustType())) {
                 for (String courseId : courseIds) {
                     CourseTable courseTable = courseMap.get(bakKeyInfoMap.get(Long.parseLong(courseId)));
+                    if(courseTable == null){
+                        continue;
+                    }
 
                     User applyUser = userService.getById(courseAdjust.getUserId());//申请人
                     User exchangeUser = userService.getById(courseAdjust.getExchangeTeacherId());//顶课人