...

examcloud-task-service/src/main/java/cn/com/qmth/examcloud/task/service/job/ExamStudentImportParsingFileTask.java

@@ -143,7 +143,11 @@ public class ExamStudentImportParsingFileTask extends AbstractTask {
 			es.setBatchId(batchId);
 			es.setName(trimAndNullIfBlank(line[0]));
 			es.setStudentCode(trimAndNullIfBlank(line[1]));
-			es.setIdentityNumber(trimAndNullIfBlank(line[2]).toUpperCase(Locale.US));
+			String identityNumber = trimAndNullIfBlank(line[2]);
+			if (StringUtils.isNotBlank(identityNumber)) {
+				identityNumber = identityNumber.toUpperCase(Locale.US);
+			}
+			es.setIdentityNumber(identityNumber);
 			es.setOrgCode(trimAndNullIfBlank(line[3]));
 			es.setOrgName(trimAndNullIfBlank(line[4]));
 			es.setCourseCode(trimAndNullIfBlank(line[5]));