...

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

@@ -302,7 +302,7 @@ public class ExamCloudServiceProvider extends ControllerSupport implements ExamC
 			if (null == exam) {
 				throw new StatusException("E-002002", "ExamEntity is null");
 			}
-			exam.setExamStudentLocked(false);
+			exam.setExamStudentLocked(true);
 			examRepo.save(exam);
 		}