fix

themis-business/src/main/resources/mapper/TEExamStudentMapper.xml

@@ -57,7 +57,7 @@
 			<if test="classNo != null and classNo != ''">
 				and tees.class_no like concat('%', #{classNo}, '%')
 			</if>
-			<if test="hasPhoto != null and hasPhoto != ''">
+			<if test="hasPhoto != null">
 				<if test="hasPhoto == 0">
 					and stu.base_photo_path is null
 				</if>