update

edu-user/edu-user-biz/src/main/java/com/keao/edu/user/service/impl/StudentExamResultServiceImpl.java

@@ -170,7 +170,13 @@ public class StudentExamResultServiceImpl extends BaseServiceImpl<Long, StudentE
 			}
 			String examName = examIdNameMap.get(studentExamResult.getExaminationBasicId());
 			String subjectName = subjectIdNameMap.get(studentExamResult.getExamRegistration().getSubjectId());
+			if(StringUtils.isBlank(subjectName)){
+				subjectName="";
+			}
 			String level = LevelEnum.getMsg(studentExamResult.getExamRegistration().getLevel());
+			if(StringUtils.isBlank(level)){
+				level = "";
+			}
 
 			Map<Integer, String> userPhoneMap = new HashMap<>();
 			userPhoneMap.put(studentExamResult.getStudentId(), studentExamResult.getStudentId().toString());