diff --git a/web/src/main/java/com/ibeetl/jlw/service/TeacherOpenCourseQuestionLogService.java b/web/src/main/java/com/ibeetl/jlw/service/TeacherOpenCourseQuestionLogService.java
index cd570126..10d19b48 100644
--- a/web/src/main/java/com/ibeetl/jlw/service/TeacherOpenCourseQuestionLogService.java
+++ b/web/src/main/java/com/ibeetl/jlw/service/TeacherOpenCourseQuestionLogService.java
@@ -283,7 +283,7 @@ public class TeacherOpenCourseQuestionLogService extends CoreBaseService<Teacher
     public void insertQuestionLog(@NotNull(message = "提交题目信息不能为空") QuestionLogAddDTO questionLogAddDTO) {
 
         Long questionSettingId = questionLogAddDTO.getQuestionSettingId();
-        Map<String, TreeSet<String>> questionLogMap = questionLogAddDTO.getQuestionLogMap();
+        Map<String, String> questionLogMap = questionLogAddDTO.getQuestionLogMap();
 
         // 查询学生身份
         final Student student = getStudent();
@@ -344,7 +344,7 @@ public class TeacherOpenCourseQuestionLogService extends CoreBaseService<Teacher
         QuestionLogAddTypeEnum addType = questionLogAddDTO.getQuestionLogAddType();
         Date addTime = questionLogAddDTO.getAddTime(); Long studentId = student.getStudentId();
         Long questionSettingId = questionLogAddDTO.getQuestionSettingId();
-        Map<String, TreeSet<String>> questionLogMap = questionLogAddDTO.getQuestionLogMap();
+        Map<String, String> questionLogMap = questionLogAddDTO.getQuestionLogMap();
 
         // 查询符合条件的日志表
         String questionSnapshotIds = join(questionLogMap.keySet().toArray(), ",");
@@ -371,7 +371,7 @@ public class TeacherOpenCourseQuestionLogService extends CoreBaseService<Teacher
             }
             Assert.isTrue(!questionLog.getQuestionLogAddType().equals(addType), "无法再次提交答案，题目已完成！");
             // 学生提交的答案
-            String answersText = join(questionLogMap.get(questionLog.getResourcesQuestionSnapshotId()).toArray(), ",");
+            String answersText = join(questionLogMap.get(questionLog.getResourcesQuestionSnapshotId()), ",");
             // 是否是正确答案
             Boolean isCorrectAnswer = questionLog.getQuestionAnswer().equalsIgnoreCase(answersText);
             // 完成时间