Uncaught (in promise) Error: Request failed with status code 500

来源：5-6 增加新增大章功能

慕姐9356413

2022-05-11

使用工具类CopyUtil，封装BeanUtils.copyProperties，简化单实体复制和列表复制的代码之后，报如下错误，无法新增大章数据
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请问老师怎么解决呢？

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甲蛙

2022-05-11

500错，要看后端日志，看什么错

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慕姐9356413

### Error updating database. Cause: com.mysql.jdbc.MysqlDataTruncation: Data truncation: Data too long for column 'course_id' at row 1 ### The error may involve com.course.server.mapper.ChapterMapper.insert-Inline ### The error occurred while setting parameters ### SQL: insert into chapter (id, course_id, name) values (?, ?, ?) ### Cause: com.mysql.jdbc.MysqlDataTruncation: Data truncation: Data too long for column 'course_id' at row 1 ; Data truncation: Data too long for column 'course_id' at row 1; nested exception is com.mysql.jdbc.MysqlDataTruncation: Data truncation: Data too long for column 'course_id' at row 1] with root cause com.mysql.jdbc.MysqlDataTruncation: Data truncation: Data too long for column 'course_id' at row 1 at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3868) 查看日志明白解决了，谢谢老师。

2022-05-11

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