Criterion:别名“Criterion”已映射到值'com.xxx.domain.def.GameListExample$Criterion‘

Question

我使用mybatis生成器生成域和映射器。当我生成一个表时，它工作得很好。

当我生成另一个表时，问题就来了。它看起来像GameListExample和BetRecdExample中的Criterion类冲突，但它是由mybatis生成的。

Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'betRecdMapper' defined in file 
[F:\IdeaProjects\game\target\classes\com\good\game\dao\def\BetRecdMapper.class]: Unsatisfied dependency expressed through bean property 'sqlSessionFactory'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'sqlSessionFactory' defined in class path resource 
[org/mybatis/spring/boot/autoconfigure/MybatisAutoConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.ibatis.session.SqlSessionFactory]: 
Factory method 'sqlSessionFactory' threw exception; nested exception is org.apache.ibatis.type.TypeException: The alias 'Criterion' is already mapped to the value 'com.good.game.domain.def.GameListExample$Criterion'.

Answer 1

听起来和https://github.com/mybatis/generator/issues/461有同样的问题

它是由mybatis-spring 2.0.1中的一个bug引起的。

https://github.com/mybatis/spring/issues/362

当前的解决方法是使用mybatis-spring 2.0.0或2.0.2-SNAPSHOT。