DEBUG [main] - Initializing new StandardEnvironment
DEBUG [main] - Adding [systemProperties] PropertySource with lowest search precedence
DEBUG [main] - Adding [systemEnvironment] PropertySource with lowest search precedence
DEBUG [main] - Initialized StandardEnvironment with PropertySources [systemProperties,systemEnvironment]
DEBUG [main] - Looking for matching resources in directory tree [E:\myworkspace\mybatis_spring3\bin\com\nemo\ssm\mapper]
DEBUG [main] - Searching directory [E:\myworkspace\mybatis_spring3\bin\com\nemo\ssm\mapper] for files matching pattern [E:/myworkspace/mybatis_spring3/bin/com/nemo/ssm/mapper/**/*.class]
DEBUG [main] - Resolved location pattern [classpath*:com/nemo/ssm/mapper/**/*.class] to resources [file [E:\myworkspace\mybatis_spring3\bin\com\nemo\ssm\mapper\UserMapper.class], file [E:\myworkspace\mybatis_spring3\bin\com\nemo\ssm\mapper\UserMapperTest.class]]
 INFO [main] - Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@71318ec4: defining beans [org.springframework.context.support.PropertySourcesPlaceholderConfigurer#0,dataSource,sqlSessionFactory,org.mybatis.spring.mapper.MapperScannerConfigurer#0]; root of factory hierarchy

注：如果使用MapperFactoryBean的话不报错。用批量扫描MapperScannerConfigurer的话就会报这一错误。实在想不明白。搜了很多也没找到正确的答案。。。各位帮帮忙，究竟哪出错了。