引入mybatis-plus后，调用dao中的接口，出现Invalid bound statement (not found)异常
exception type:org.apache.ibatis.binding.BindingException, exception message:Invalid bound statement (not found):
pro....ktwelve.modules.sys.dao.SysUserDao.queryByUserName, requestUrl:/sys/login
org.apache.ibatis.binding.BindingException: Invalid bound statement (not found):
pro....ktwelve.modules.sys.dao.SysUserDao.queryByUserName
at com.baomidou.mybatisplus.core.override.PageMapperMethod$SqlCommand.<init>(PageMapperMethod.java:261)
Resolved [org.apache.ibatis.binding.BindingException: Invalid bound statement (not found):
pro....ktwelve.modules.sys.dao.SysUserDao.queryByUserName]
解决方法：修改配置文件mybatis改为mybatis-plus
mybatis-plus:
type-aliases-package: pro...domain,pro....ktwelve.modules.sys.entity
mapper-locations: classpath*:/mappers/*.xml,classpath*:/mappers/**/*.xml
configuration:
mapUnderscoreToCamelCase: true
map-underscore-to-camel-case: true
#强力的SQL打印
log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
另外要注意mapper-locations的写法：classpath后的不可少，*.xml也不能少，否则可能报文件找不到的错误
Caused by: java.nio.file.AccessDeniedException: F:\git-source\mayun\ktwelve_Server\k12-business\target\classes\mappers\sys
