fixbug

examcloud-core-questions-service/src/main/java/cn/com/qmth/examcloud/core/questions/service/impl/ExtractConfigServiceImpl.java

@@ -266,7 +266,7 @@ public class ExtractConfigServiceImpl implements ExtractConfigService {
 
 	private boolean inOtherExtractConfig(String extractConfigId, String paperId) {
 		Criteria criteria = new Criteria();
-		criteria.and("examPaperList").elemMatch(Criteria.where("paper.$id").is(new ObjectId(paperId)));
+		criteria.and("examPaperList").elemMatch(Criteria.where("paper.$id").is(paperId));
 		Query query = Query.query(criteria);
 		List<ExtractConfig> list = mongoTemplate.find(query, ExtractConfig.class, "extractConfig");
 		if (list == null || list.size() == 0) {