【fix】

src/main/java/com/zzsn/event/service/impl/SubjectServiceImpl.java

@@ -862,9 +862,11 @@ public class SubjectServiceImpl extends ServiceImpl<SubjectMapper, Subject> impl
                 }
                 if (CollectionUtils.isNotEmpty(newDateList)) {
                     //防止重复
-                    newDateList.forEach(e -> {
-                       redisUtil.lRemove(Constants.HISTORY_SUBJECT_DATE_QUEUE + subject.getSubjectCode(), 1, e);
-                    });
+                    if (redisUtil.hasKey(Constants.HISTORY_SUBJECT_DATE_QUEUE + subject.getSubjectCode())) {
+                        newDateList.forEach(e -> {
+                           redisUtil.lRemove(Constants.HISTORY_SUBJECT_DATE_QUEUE + subject.getSubjectCode(), 1, e);
+                        });
+                    }
                     redisUtil.rpushMultipleValues(Constants.HISTORY_SUBJECT_DATE_QUEUE + subject.getSubjectCode(), newDateList.toArray(new String[0]));
                 }
             }