解决思路： <columnOverride column="your column" jdbcType="VARCHAR" />

The fully qualified Java Type of the property for this column. This can be used to override the type calculated by the JavaTypeResolver if required. For some databases, this is necessary to handle "odd" database types (e.g. MySql's unsigned bigint type should be mapped to java.lang.Object).

相关链接：

mybatis-generator 无法自动生成字段类型为 text 的属性_热爱学习，享受生活-CSDN 博客

Spring 和 MyBatis 整合自动生成代码里面 text 类型坑 - 简书 (jianshu.com)