...

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

@@ -147,9 +147,9 @@ public class ExamStudentController extends ControllerSupport {
 				predicates.add(cb.like(root.get("identityNumber"),
 						toSqlSearchPattern(examCriteria.getIdentityNumber())));
 			}
-			if (!StringUtils.isEmpty(examCriteria.getSpecialtyName())) {
+			if (StringUtils.isNotEmpty(examCriteria.getSpecialtyName())) {
 				predicates.add(cb.like(root.get("specialtyName"),
-						"%" + examCriteria.getSpecialtyName() + "%"));
+						toSqlSearchPattern(examCriteria.getSpecialtyName())));
 			}
 
 			return cb.and(predicates.toArray(new Predicate[predicates.size()]));