update

seec-data-server/src/main/java/cn/seecoder/data/server/service/Impl/EvaluateServiceImpl.java

@@ -97,6 +97,7 @@ public class EvaluateServiceImpl implements EvaluateService {
             if(questionById.isPresent()) {
               QuestionVO questionVO = questionById.get();
                 List<String> knowledgeAbbs = questionVO.getKnowledgeId();
+                if(knowledgeAbbs == null) knowledgeAbbs = new ArrayList<>(); // 防止knowledgeAbbs为null
                 knowledgeAbbs.forEach(abbr -> {
                     KnowledgeDao knowledgeDao = knowledgeRepository.findByAbbreviation(abbr);
                     String knowLedgeName = knowledgeDao.getName();