format code.

examcloud-core-questions-service/src/main/java/cn/com/qmth/examcloud/core/questions/service/ImportPaperService.java

@@ -208,21 +208,11 @@ public class ImportPaperService {
 
     /**
      * 清空试卷对象,加速回收
-     *
-     * @param paper
-     * @param paperDetails
-     * @param paperDetailUnits
-     * @param questions
      */
-    public void clearPaper(Paper paper, List<PaperDetail> paperDetails, List<PaperDetailUnit> paperDetailUnits, List<Question> questions) {
-        paper = null;
+    public void clearPaper(List<PaperDetail> paperDetails, List<PaperDetailUnit> paperDetailUnits, List<Question> questions) {
         paperDetails.clear();
-        for (PaperDetailUnit paperDetailUnit : paperDetailUnits) {
-            paperDetailUnit.setQuestion(null);
-        }
         paperDetailUnits.clear();
         questions.clear();
-
     }
 
     /**
@@ -361,9 +351,11 @@ public class ImportPaperService {
             throw new PaperException("导入文件格式有误!");
         }
         paper.setPaperDetailCount(mainQuesNum);
+
         // 保存导入试卷信息
         paper = savePaper(paper, paperDetails, paperDetailUnits, questions, importPaperCheck);
-        clearPaper(paper, paperDetails, paperDetailUnits, questions);
+        clearPaper(paperDetails, paperDetailUnits, questions);
+
         wordMLPackage = null;
         tmpWordMlPackage = null;
         FileUtils.deleteQuietly(file);
@@ -921,7 +913,8 @@ public class ImportPaperService {
             } else if (tmpText.startsWith(ImportPaperMsg.difficulty)) {
                 // 检测到难度开始段落  difficultyDegree
                 String dif = getContent(tmpText, ImportPaperMsg.difficulty);
-                difficulty = checkDiffculty(difficulty, dif, importPaperCheck, errorQuesNum, question);
+
+                difficulty = checkDifficulty(dif, importPaperCheck, errorQuesNum, question);
                 question.setDifficultyDegree(difficulty);
                 answerStart = false;
             } else if (tmpText.startsWith(ImportPaperMsg.publicity)) {
@@ -1582,27 +1575,23 @@ public class ImportPaperService {
 
     /**
      * 校验试题难度
-     *
-     * @param difficulty
-     * @param tmpText
-     * @param importPaperCheck
-     * @param subQuesNum
-     * @throws Exception
      */
-    private Double checkDiffculty(Double difficulty, String tmpText, ImportPaperCheck importPaperCheck, int subQuesNum, Question question) throws Exception {
+    private Double checkDifficulty(String tmpText, ImportPaperCheck importPaperCheck, int subQuesNum, Question question) throws Exception {
+        Double tempDifficulty;
         if (StringUtils.isBlank(tmpText)) {
             //如果为空，默认难度0.5
-            difficulty = 0.5;
+            tempDifficulty = 0.5;
             question.setDifficulty("中");
         } else if (!isInteger(tmpText) || (Double.parseDouble(tmpText) < 1) || (Double.parseDouble(tmpText) > 10)) {
             //如果不是整数，或者在1到10之间，就报错
             importPaperCheck.setErrorInfo(getQuesNumInfo(importPaperCheck.getQuesName(), subQuesNum) + "中,试题难度只能是1到10之间整数");
             throw new PaperException(importPaperCheck.getErrorInfo());
         } else {
-            difficulty = Double.parseDouble(tmpText) / 10;
-            question.setDifficulty(setDiff(difficulty));
+            tempDifficulty = Double.parseDouble(tmpText) / 10;
+            question.setDifficulty(setDiff(tempDifficulty));
         }
-        return difficulty;
+
+        return tempDifficulty;
     }
 
     private String setDiff(Double difficulty) {