diff --git a/servers/boe-server-all/src/main/java/com/xboe/module/course/api/CoursePortalApi.java b/servers/boe-server-all/src/main/java/com/xboe/module/course/api/CoursePortalApi.java
index 3fb3a04d..74737544 100644
--- a/servers/boe-server-all/src/main/java/com/xboe/module/course/api/CoursePortalApi.java
+++ b/servers/boe-server-all/src/main/java/com/xboe/module/course/api/CoursePortalApi.java
@@ -18,6 +18,7 @@ import com.xboe.api.ThirdApi;
 import com.xboe.core.orm.FieldFilters;
 import com.xboe.module.course.entity.*;
 import com.xboe.module.course.vo.TeacherVo;
+import com.xboe.school.study.dao.StudyCourseDao;
 import com.xboe.school.study.dao.StudySignupDao;
 import com.xboe.school.study.entity.StudySignup;
 import com.xboe.school.study.service.IStudyHomeWorkService;
@@ -98,7 +99,7 @@ public class CoursePortalApi extends ApiBaseController{
 	IStudyService studyService;
 
 	@Autowired
-	StudySignupDao signupDao;
+	StudyCourseDao studyCourseDao;
 
 	@Autowired
 	StringRedisTemplate redisTemplate;
@@ -362,7 +363,7 @@ public class CoursePortalApi extends ApiBaseController{
 	@GetMapping("/export")
 	public JsonResponse export(String courseName,String courseId,String contentId,String name,Integer status,HttpServletResponse response) throws IOException {
 		Map<String, String>map=new HashMap<>();
-		List<String> userIds = signupDao.findList(FieldFilters.eq("courseId", courseId)).stream().filter(Objects::nonNull).map(StudySignup::getAid).collect(Collectors.toList());
+		List<String> userIds = studyCourseDao.findList(FieldFilters.eq("courseId", courseId)).stream().filter(Objects::nonNull).map(StudyCourse::getAid).collect(Collectors.toList());
 		if (userIds.isEmpty()){
 			return error("查询不到用户");
 		}