Springboot文档（中文，英文）

中文文档地址：

https://my.oschina.net/geekidentity/blog/872888

英文文档地址：

https://docs.spring.io/spring-boot/docs/current/reference/pdf/spring-boot-reference.pdf

spring详解

https://docs.spring.io/spring/docs/current/javadoc-api/org/springframework/web/socket/sockjs/client/package-summary.html