yaml快速入门:https://www.jianshu.com/p/97222440cd08
Java读写yaml文件:https://blog.csdn.net/qq_35315750/article/details/79301388
一、maven依赖
<!-- https://mvnrepository.com/artifact/org.yaml/snakeyaml --> <dependency> <groupId>org.yaml</groupId> <artifactId>snakeyaml</artifactId> <version>1.17</version> </dependency>