try catch NPE

examcloud-core-oe-student-service/src/main/java/cn/com/qmth/examcloud/core/oe/student/service/impl/ExamRecordDataServiceImpl.java

@@ -357,66 +357,69 @@ public class ExamRecordDataServiceImpl implements ExamRecordDataService {
      */
     @Override
     public CalcExamScoreResp calcExamScore(CalcExamScoreReq req) {
-        long startTime = System.currentTimeMillis();
-        ExamRecordQuestions examRecordQuestions = examRecordQuestionsService.getExamRecordQuestions(req.getExamRecordDataId());
-
-        // todo NPE
-
-        // 考生作答记录明细
-        List<ExamQuestion> examQuestions = examRecordQuestions.getExamQuestions();
-
-        for (ExamQuestion examQuestion : examQuestions) {
-            if (QuestionTypeUtil.isObjectiveQuestion(examQuestion.getQuestionType())) {
-                // 如果客观题的标准答案为空，则更新标准答案
-                if (StringUtils.isEmpty(examQuestion.getCorrectAnswer())) {
-                    this.updateCorrectAnswer(req.getExamRecordDataId(), examQuestions, examQuestion);
+        try {
+            long startTime = System.currentTimeMillis();
+            ExamRecordQuestions examRecordQuestions = examRecordQuestionsService.getExamRecordQuestions(req.getExamRecordDataId());
+
+            // 考生作答记录明细
+            List<ExamQuestion> examQuestions = examRecordQuestions.getExamQuestions();
+
+            for (ExamQuestion examQuestion : examQuestions) {
+                if (QuestionTypeUtil.isObjectiveQuestion(examQuestion.getQuestionType())) {
+                    // 如果客观题的标准答案为空，则更新标准答案
+                    if (StringUtils.isEmpty(examQuestion.getCorrectAnswer())) {
+                        this.updateCorrectAnswer(req.getExamRecordDataId(), examQuestions, examQuestion);
+                    }
                 }
             }
-        }
 
-        double objectiveScore = 0d;//客观题总分
-        int totalObjective = 0;//客观题总数
-        int totalRightObjective = 0;//答题正确数
+            double objectiveScore = 0d;//客观题总分
+            int totalObjective = 0;//客观题总数
+            int totalRightObjective = 0;//答题正确数
 
-        for (int i = 0; i < examQuestions.size(); i++) {
-            ExamQuestion examQuestion = examQuestions.get(i);
-            if (!QuestionTypeUtil.isObjectiveQuestion(examQuestion.getQuestionType())) {
-                // 跳过主观题
-                continue;
-            }
+            for (int i = 0; i < examQuestions.size(); i++) {
+                ExamQuestion examQuestion = examQuestions.get(i);
+                if (!QuestionTypeUtil.isObjectiveQuestion(examQuestion.getQuestionType())) {
+                    // 跳过主观题
+                    continue;
+                }
 
-            totalObjective++;
+                totalObjective++;
 
-            // 如果学生作答正确，则客观分累加，答题数累加
-            if (examQuestion.getStudentAnswer() != null && examQuestion.getCorrectAnswer() != null
-                    // && QuestionOptionHelper.isEqualAnswer(examQuestion.getCorrectAnswer(), examQuestion.getStudentAnswer())) {
-                    && examQuestion.getStudentAnswer().equals(examQuestion.getCorrectAnswer())) {
+                // 如果学生作答正确，则客观分累加，答题数累加
+                if (examQuestion.getStudentAnswer() != null && examQuestion.getCorrectAnswer() != null
+                        // && QuestionOptionHelper.isEqualAnswer(examQuestion.getCorrectAnswer(), examQuestion.getStudentAnswer())) {
+                        && examQuestion.getStudentAnswer().equals(examQuestion.getCorrectAnswer())) {
 
-                double questionScore = examQuestion.getQuestionScore();
-                BigDecimal bigObjectiveScore = new BigDecimal(Double.toString(objectiveScore));
-                BigDecimal bigQuestionScore = new BigDecimal(Double.toString(questionScore));
+                    double questionScore = examQuestion.getQuestionScore();
+                    BigDecimal bigObjectiveScore = new BigDecimal(Double.toString(objectiveScore));
+                    BigDecimal bigQuestionScore = new BigDecimal(Double.toString(questionScore));
 
-                objectiveScore = bigQuestionScore.add(bigObjectiveScore).doubleValue();
-                totalRightObjective++;
+                    objectiveScore = bigQuestionScore.add(bigObjectiveScore).doubleValue();
+                    totalRightObjective++;
+                }
             }
-        }
 
-        // 计算客观题答题正确率
-        double objectiveAccuracy = 0;
-        if (totalRightObjective > 0 && totalObjective > 0) {
-            objectiveAccuracy = Double.parseDouble(new DecimalFormat("#.00").format(totalRightObjective * 100D / totalObjective));
-        }
-
-        CalcExamScoreResp resp = new CalcExamScoreResp();
-        resp.setObjectiveScore(objectiveScore);
-        resp.setObjectiveAccuracy(objectiveAccuracy);
-        //交卷时,总分=客观分得分
-        resp.setTotalScore(objectiveScore);
+            // 计算客观题答题正确率
+            double objectiveAccuracy = 0;
+            if (totalRightObjective > 0 && totalObjective > 0) {
+                objectiveAccuracy = Double.parseDouble(new DecimalFormat("#.00").format(totalRightObjective * 100D / totalObjective));
+            }
 
-        long cost = System.currentTimeMillis() - startTime;
-        log.warn("calcExamScore examRecordDataId:{}, totalQuestion:{}, totalObjective:{}, cost:{}ms",
-                req.getExamRecordDataId(), examQuestions.size(), totalObjective, cost);
-        return resp;
+            CalcExamScoreResp resp = new CalcExamScoreResp();
+            resp.setObjectiveScore(objectiveScore);
+            resp.setObjectiveAccuracy(objectiveAccuracy);
+            //交卷时,总分=客观分得分
+            resp.setTotalScore(objectiveScore);
+
+            long cost = System.currentTimeMillis() - startTime;
+            log.warn("calcExamScore examRecordDataId:{}, totalQuestion:{}, totalObjective:{}, cost:{}ms",
+                    req.getExamRecordDataId(), examQuestions.size(), totalObjective, cost);
+            return resp;
+        } catch (NullPointerException e) {
+            log.error(e.getMessage(), e);
+            throw new StatusException("计算考试分数异常！examRecordDataId=" + req.getExamRecordDataId());
+        }
     }
 
     /**