...

examcloud-core-examwork-api-provider/src/main/java/cn/com/qmth/examcloud/core/examwork/api/controller/ExamStudentController.java

@@ -374,10 +374,11 @@ public class ExamStudentController extends ControllerSupport {
 		saveStudentReq.setOrgId(examStudent.getOrgId());
 		saveStudentReq.setRemark(examStudent.getRemark());
 		saveStudentReq.setRootOrgId(examStudent.getRootOrgId());
-		List<String> studentCodeList = Lists.newArrayList();
-		studentCodeList.add(examStudent.getStudentCode());
-		saveStudentReq.setStudentCodeList(studentCodeList);
-
+		if (StringUtils.isNotBlank(examStudent.getStudentCode())) {
+			List<String> studentCodeList = Lists.newArrayList();
+			studentCodeList.add(examStudent.getStudentCode());
+			saveStudentReq.setStudentCodeList(studentCodeList);
+		}
 		SaveStudentResp saveStudentResp = studentCloudService.saveStudent(saveStudentReq);
 
 		Long studentId = saveStudentResp.getStudentId();