feat:用户添加校验

ruoyi-admin/src/main/java/com/ruoyi/web/controller/manager/UserExamManager.java

@@ -75,11 +75,14 @@ public class UserExamManager {
             record.setExamId(examId);
             record.setMaxScore(score);
             record.setPassed(passed);
+            record.setTryCount(1);
             elUserExamService.save(record);
             return;
         }
         // 修复低分数不加入统计问题
-        record.setTryCount(record.getTryCount()+1);
+        if(Objects.nonNull(record.getTryCount())){
+            record.setTryCount(record.getTryCount()+1);
+        }
         record.setUpdateTime(new Date());
         if(record.getMaxScore() < score){
             record.setMaxScore(score);