xml文件参数类型有问题

org.mybatis.spring.MyBatisSystemException: nested exception is org.apache.ibatis.executor.ExecutorException: A query was run and no Result Maps were found for the Mapped Statement ‘com.itheima.dao.CheckGroupDao.findAll‘. It‘s likely that neither a Result Type nor a Result Map was specified.

xml文件里面参数类型有问题

parameterType:有参数
resultType:没有参数

xml文件参数类型有问题

原文：https://www.cnblogs.com/Koma-vv/p/13286340.html