mybatis-plus 使用 IPage 分页，手写 sql 报错的问题求指教

如题

报错内容如下：

### The error may involve defaultParameterMap
### The error occurred while setting parameters
### SQL: SELECT * FROM(         SELECT bwi.id AS word_id,                      bwi.word_spell,                      bwi.view_chapter_id               FROM auto_student_test_question astq                        LEFT JOIN base_word_info bwi ON astq.word_id = bwi.id               WHERE astq.del_flag = '0'                 AND astq.`status` = '0'                 AND astq.class_code = ?                 AND astq.student_code = ?                 AND astq.book_id = ?                 AND astq.test_result = '2'               UNION               SELECT bwi.id AS word_id,                      bwi.word_spell,                      bwi.view_chapter_id               FROM word_student_note wsn                        LEFT JOIN base_word_info bwi ON wsn.word_id = bwi.id               WHERE wsn.del_flag = '0'                 AND wsn.`status` = '0'                 AND wsn.class_code = ?                 AND wsn.student_code = ?                 AND wsn.book_id = ?                 AND wsn.error_count != 0) unionTable LIMIT ?,?
### Cause: java.lang.ClassCastException: java.lang.String cannot be cast to java.lang.Integer

1.service 代码：

List<ClassErrorWordResponse> words = autoClassNoteService.selectStudentErrorWordInfo(request.getPage(),
                request.getClassCode(), request.getStudentCode(), request.getBookId());

2.Mapper.java 代码

List<ClassErrorWordResponse> selectStudentErrorWordInfo(@Param("page") Page<ClassErrorWordResponse> page, @Param("classCode") String classCode, @Param("studentCode") String studentCode, @Param("bookId") Long bookId);

3.mapper.xml 代码

SELECT DISTINCT 
	a.word_id,
    a.word_spell,
    a.view_chapter_id
FROM(
        SELECT bwi.id AS word_id,
                     bwi.word_spell,
                     bwi.view_chapter_id
              FROM auto_student_test_question astq
                       LEFT JOIN base_word_info bwi ON astq.word_id = bwi.id
              WHERE astq.del_flag = '0'
                AND astq.`status` = '0'
                AND astq.class_code = #{classCode}
                AND astq.student_code = #{studentCode}
                AND astq.book_id = #{bookId}
                AND astq.test_result = '2'
              UNION
              SELECT bwi.id AS word_id,
                     bwi.word_spell,
                     bwi.view_chapter_id
              FROM word_student_note wsn
                       LEFT JOIN base_word_info bwi ON wsn.word_id = bwi.id
              WHERE wsn.del_flag = '0'
                AND wsn.`status` = '0'
                AND wsn.class_code = #{classCode}
                AND wsn.student_code = #{studentCode}
                AND wsn.book_id = #{bookId}
                AND wsn.error_count != 0) a

各种尝试感觉是因为最外层的子查询导致的，sql 是没问题的，打印出来的 sql 丢 navicat 里正常运行，并且如果不分页的话 sql 也正常，只要带着分页就会报错。大家有遇到过的吗？