update

edu-user/edu-user-server/src/main/resources/config/mybatis/ExamRegistrationMapper.xml

@@ -69,7 +69,7 @@
 			<if test="examinationBasicId != null">
 				examination_basic_id_ = #{examinationBasicId},
 			</if>
-			<if test="studentId != null != null">
+			<if test="studentId != null">
 				student_id_ = #{studentId},
 			</if>
 			<if test="organId != null">