fix getPaperStructQuestions 调卷规则异常

examcloud-exchange-outer-service/src/main/java/cn/com/qmth/examcloud/exchange/outer/service/impl/OutletPaperStructServiceImpl.java

@@ -52,7 +52,14 @@ public class OutletPaperStructServiceImpl implements OutletPaperStructService {
     @Override
     public List<OuterQuestionBean> getPaperStructQuestions(Long examId, String courseCode, QuestionCategory questionCategory) {
         // 获取题库调卷规则
-        ExtractConfigCacheBean extractConfig = CacheHelper.getExtractConfig(examId, courseCode);
+        ExtractConfigCacheBean extractConfig = null;
+        try {
+            extractConfig = CacheHelper.getExtractConfig(examId, courseCode);
+        } catch (Exception e) {
+            String err = "examId = " + examId + ", courseCode = " + courseCode + " " + e.getMessage();
+            log.warn(err, e);
+        }
+
         if (extractConfig == null || CollectionUtils.isEmpty(extractConfig.getDetails())) {
             // 调卷规则不存在
             return new ArrayList<>();
@@ -60,7 +67,7 @@ public class OutletPaperStructServiceImpl implements OutletPaperStructService {
 
         //需求调整20200904：考试下某课程存在多套试卷时，直接给出错误提示，101444这个错误码有外部使用，不要随便修改
         if (extractConfig.getDetails().size() > 1) {
-            throw new StatusException("101444", String.format("当前考试课程代码为:%s的试卷规则中存在多套试卷",courseCode));
+            throw new StatusException("101444", String.format("当前考试课程代码为:%s的试卷规则中存在多套试卷", courseCode));
         }
 
         // 默认选取调卷规则中的任意一份试卷