1、修改mybatis.org//DTD Config 3.0//EN更改为mybatis.org//DTD//EN 2、将url换成http://mybatis.org/dtd/mybatis-3-mapper.dtd 3、刷新 相关文章: 2021-07-16 2021-08-17 2022-12-23 2022-12-23 2021-08-18 2021-09-29 2021-09-24