3.4.0 update

distributed-print-business/src/main/resources/mapper/BasicExamStudentMapper.xml

@@ -147,7 +147,7 @@
                 and stu.class_name like concat('%', #{query.className}, '%')
             </if>
             <if test="query.paperNumber != null and query.paperNumber != ''">
-                and stu.paper_number like concat('%', #{paperNumber}, '%')
+                and stu.paper_number like concat('%', #{query.paperNumber}, '%')
             </if>
         </where>
         ORDER BY stu.student_code