fix更新已考接口

src/main/java/cn/aibreeze/exam/api/ExamController.java

@@ -169,7 +169,7 @@ public class ExamController {
 
         String avgScore = "";
         Double totalScore = 0D;
-        int examNum = 0;
+        long examNum = 0;
         List<SingleQaResult> qaResultList = Lists.newArrayList();
 
         LambdaQueryWrapper<ElehSessionQaRecordDo> queryWrapper = new LambdaQueryWrapper<>();
@@ -178,8 +178,8 @@ public class ExamController {
         queryWrapper.eq(ElehSessionQaRecordDo::getUserId, userId);
         List<ElehSessionQaRecordDo> qaRecordDos = qaRecordMapper.selectList(queryWrapper);
         if(!CollectionUtils.isEmpty(qaRecordDos)) {
-            totalScore = qaRecordDos.stream().mapToDouble(ElehSessionQaRecordDo::getScore).sum();
-            examNum = qaRecordDos.size();
+            totalScore = qaRecordDos.stream().filter(v -> Objects.nonNull(v.getScore())).mapToDouble(ElehSessionQaRecordDo::getScore).sum();
+            examNum = qaRecordDos.stream().filter(v -> Objects.nonNull(v.getScore())).count();
 
             DecimalFormat df = new DecimalFormat("#.##");
             avgScore = df.format(totalScore / examNum);

src/main/java/cn/aibreeze/exam/dto/SessionExamResult.java

@@ -16,7 +16,7 @@ public class SessionExamResult implements Serializable {
     private String avgScore;
 
     @JsonProperty("exam_num")
-    private int examNum;
+    private long examNum;
 
     @JsonProperty("qa_result_list")
     private List<SingleQaResult> qaResultList;