报错：
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 java.io.FileNotFoundException: class path resource [mybatis/SqlMapConfig.xml] cannot be opened because it does not exist
解决：
在 Application 上加注解：
1 @EnableAutoConfiguration(exclude={DataSourceAutoConfiguration.class})
