diff --git a/servers/boe-server-all/src/main/java/com/xboe/module/course/entity/CourseTeacher.java b/servers/boe-server-all/src/main/java/com/xboe/module/course/entity/CourseTeacher.java
index b8e523f5..f924f0b8 100644
--- a/servers/boe-server-all/src/main/java/com/xboe/module/course/entity/CourseTeacher.java
+++ b/servers/boe-server-all/src/main/java/com/xboe/module/course/entity/CourseTeacher.java
@@ -56,12 +56,5 @@ public class CourseTeacher extends IdBaseEntity {
     /**讲师类型 1 内部讲师  2外部讲师*/
     @Transient
     private Integer teacherType;
-    /**供应商*/
-//    @Transient
-//    private String supplier;
-//
-//    /**讲师类型 1 内部讲师  2外部讲师*/
-//    @Transient
-//    private Integer teacherType;
 
 }
diff --git a/servers/boe-server-all/src/main/java/com/xboe/school/study/api/StudyCourseApi.java b/servers/boe-server-all/src/main/java/com/xboe/school/study/api/StudyCourseApi.java
index 751a8c58..d5e5eeb9 100644
--- a/servers/boe-server-all/src/main/java/com/xboe/school/study/api/StudyCourseApi.java
+++ b/servers/boe-server-all/src/main/java/com/xboe/school/study/api/StudyCourseApi.java
@@ -219,11 +219,11 @@ public class StudyCourseApi extends ApiBaseController{
 				redisTemplate.opsForValue().set(teacherVo.get(0).getTeacherId(), teacherVo.get(0).getStatus());
 				//设置过期时间为1天
 				redisTemplate.expire(teacherVo.get(0).getTeacherId(), 24 * 60 * 60, TimeUnit.SECONDS);
-				if (Objects.equals(redisTemplate.opsForValue().get(ct.getTeacherId()), "1") && t.getTeacherType() == 1 ){
+				if (Objects.equals(redisTemplate.opsForValue().get(ct.getTeacherId()), "1") && (  t==null ||  t.getTeacherType() == 1)){
 					ct.setTeacherName("BOE教师");
 				}
 			}
-			if (Objects.equals(redisTemplate.opsForValue().get(ct.getTeacherId()), "1") && t.getTeacherType() == 1  ){
+			if (Objects.equals(redisTemplate.opsForValue().get(ct.getTeacherId()), "1") && (  t==null ||  t.getTeacherType() == 1)){
 				ct.setTeacherName("BOE教师");
 			}
 		}
@@ -275,6 +275,19 @@ public class StudyCourseApi extends ApiBaseController{
 						continue;
 					}
 
+					// 查询redis上面的key，并解析value获取到lastStudyTime
+					String lastActive = redisTemplate.opsForValue().get("studyContentId:" + item.getId() + ":last_active");
+					if (StringUtil.isNotBlank(lastActive)) {
+						String[] parts = lastActive.split("&");
+						if (parts.length == 2) {
+							int lastStudyTimeRedis = Integer.parseInt(parts[0]);
+							log.info("study-video-time-redis获取---lastStudyTimeRedis = " + lastStudyTimeRedis);
+							if(lastStudyTimeRedis>0){
+								item.setLastStudyTime(lastStudyTimeRedis);
+							}
+						}
+					}
+
 					BigDecimal lastStudyTime = new BigDecimal(item.getLastStudyTime());
 					BigDecimal duration = new BigDecimal(content.getDuration());
 					BigDecimal progress = lastStudyTime.divide(duration, 10, RoundingMode.HALF_UP);