update "rightAnswer" field name

src/main/java/cn/com/qmth/examcloud/support/cache/bean/QuestionAnswerCacheBean.java

@@ -20,7 +20,7 @@ public class QuestionAnswerCacheBean extends RandomCacheBean {
     /**
      * 正确答案
      */
-    private List<String> rightAnswer;
+    private List<String> rightAnswers;
 
     public String getQuestionId() {
         return questionId;
@@ -30,12 +30,12 @@ public class QuestionAnswerCacheBean extends RandomCacheBean {
         this.questionId = questionId;
     }
 
-    public List<String> getRightAnswer() {
-        return rightAnswer;
+    public List<String> getRightAnswers() {
+        return rightAnswers;
     }
 
-    public void setRightAnswer(List<String> rightAnswer) {
-        this.rightAnswer = rightAnswer;
+    public void setRightAnswers(List<String> rightAnswers) {
+        this.rightAnswers = rightAnswers;
     }
 
 }