完善内容

src/main/resources/EPaperVerifyMapper.xml

@@ -4,7 +4,7 @@
     <!--根据姓名搜索学生信息-->
     <select id="listStudentByStudentname" resultType="java.util.Map">
         select s.studentid,u.username studentname,u.examno,c.classid,c.classname,e.gradeid
-        from e_class_student s left join e_class c on s.examid=c.examid and c.classid=c.classid
+        from e_class_student s left join e_class c on s.examid=c.examid and c.classid=s.classid
         LEFT JOIN t_user u on s.studentid=u.userid
         left join e_base e on c.examid=e.examid
         where s.examid=#{examid} and u.usertype=2 and u.username like concat('%', #{studentname}, '%')