fixbugs

stmms-web/src/main/java/cn/com/qmth/stmms/admin/exam/InspectedController.java

@@ -150,7 +150,7 @@ public class InspectedController extends BaseExamController {
                 task = taskService.build(student);
             }
         }
-        if (query.getSecretNumber() != null) {
+        if (StringUtils.isNotBlank(query.getSecretNumber())) {
             ExamStudent student = studentService.findByExamIdAndSecretNumber(examId, query.getSecretNumber());
             if (student == null) {
                 return null;