优化

themis-admin/src/main/java/com/qmth/themis/admin/api/TEExamStudentController.java

@@ -289,9 +289,7 @@ public class TEExamStudentController {
             } else {
                 UpdateWrapper<TEStudent> teStudentUpdateWrapper = new UpdateWrapper<>();
                 teStudentUpdateWrapper.lambda().set(TEStudent::getName, s.getName());
-                if (Objects.nonNull(s.getMobileNumber()) && !Objects.equals(s.getMobileNumber().trim(), "")) {
-                    teStudentUpdateWrapper.lambda().set(TEStudent::getMobileNumber, s.getMobileNumber());
-                }
+                teStudentUpdateWrapper.lambda().set(TEStudent::getMobileNumber, s.getMobileNumber());
                 teStudentUpdateWrapper.lambda().eq(TEStudent::getIdentity, s.getIdentity())
                         .eq(TEStudent::getOrgId, tbOrg.getId());
                 teStudentService.update(teStudentUpdateWrapper);