依赖地址:
https://mvnrepository.com/artifact/org.springframework.boot/spring-boot-starter-data-mongodb/2.3.4.RELEASE
官方手册地址:
https://docs.spring.io/spring-data/mongodb/docs/current/reference/html/#mongodb-getting-started
非官方文档:
http://www.mydlq.club/article/85/