....

examcloud-core-basic-api-provider/src/main/java/cn/com/qmth/examcloud/core/basic/api/controller/AuthController.java

@@ -140,6 +140,7 @@ public class AuthController extends ControllerSupport {
 
 		Student s = studentRepo.findOne(studentId);
 		s.setSecurityPhone(phone);
+		studentRepo.saveAndFlush(s);
 	}
 
 }