转载：
https://www.cnblogs.com/liuyj-top/p/12976396.html
注意资源配置：
mybatis-plus:
configuration:
map-underscore-to-camel-case: true
auto-mapping-behavior: full
log-impl: org.apache.ibatis.logging.stdout.StdOutImpl
mapper-locations: classpath*:mapper/**/*Mapper.xml
