增加图片损坏验证

src/main/java/org/rcisoft/business/blesson/service/impl/BLessonServiceImpl.java

@@ -386,11 +386,11 @@ public class BLessonServiceImpl implements BLessonService {
                 updateTrainIsSign.setLessonId(model.getBusinessId());
                 String pastTrainIsSign;
                 if (now.before(model.getTrainOverDate())){
-                    //将所有待参加学生置为缺勤
+                    //将所有缺勤设置为待参加
                     updateTrainIsSign.setTrainIsSign("0");
                     pastTrainIsSign = "1";
                 }else {
-                    //将所有缺勤设置为待参加
+                    //将所有待参加学生置为缺勤
                     updateTrainIsSign.setTrainIsSign("1");
                     pastTrainIsSign = "0";
                 }