课程转换

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

@@ -250,8 +250,8 @@ public class CourseScheduleConvertServiceImpl implements CourseScheduleConvertSe
             throw new BizException("操作失败：所选部分课程不支持课程转换");
         }
         //校验学员时长是否一致
-        int errorNum = courseScheduleConvertDao.checkStudentCourseNum(courseIds,split.length);
-        if (errorNum > 0){
+        Integer errorNum = courseScheduleConvertDao.checkStudentCourseNum(courseIds,split.length);
+        if (errorNum != null && errorNum > 0){
             throw new BizException("操作失败: 课程关联学员不一致");
         }
     }