diff --git a/servers/boe-server-all/src/main/java/com/xboe/school/study/service/impl/StudyServiceImpl.java b/servers/boe-server-all/src/main/java/com/xboe/school/study/service/impl/StudyServiceImpl.java
index b3328450..094af290 100644
--- a/servers/boe-server-all/src/main/java/com/xboe/school/study/service/impl/StudyServiceImpl.java
+++ b/servers/boe-server-all/src/main/java/com/xboe/school/study/service/impl/StudyServiceImpl.java
@@ -129,7 +129,7 @@ public class StudyServiceImpl implements IStudyService{
 		//追加课程的学习时长
 		//scDao.updateMultiFieldById(studyId, UpdateBuilder.create("totalDuration", "totalDuration+"+duration,FieldUpdateType.EXPRESSION));
 		
-		String sql="Update boe_study_course set total_duration=total_duration+"+duration+",status=(case when status<2 then 2 else status end),progress=(case when progress=0 then 1 else progress end),last_time = "+LocalDateTime.now()+" where id=?1";
+		String sql="Update boe_study_course set total_duration=total_duration+"+duration+",status=(case when status<2 then 2 else status end),progress=(case when progress=0 then 1 else progress end),last_time = '"+LocalDateTime.now()+"' where id=?1";
 		scDao.sqlUpdate(sql,studyId);
 		
 	}