spring session
官网 https://projects.spring.io/spring-session/

学习文档：https://docs.spring.io/spring-session/docs/current/reference/html5/

API： https://docs.spring.io/spring-session/docs/2.0.2.RELEASE/api/

指南：
HttpSession & Redis
https://docs.spring.io/spring-session/docs/current/reference/html5/guides/java-redis.html

Spring Boot Integration
https://docs.spring.io/spring-session/docs/current/reference/html5/guides/boot-redis.html

Spring Security Integration
https://docs.spring.io/spring-session/docs/current/reference/html5/guides/java-security.html

RESTful APIs
https://docs.spring.io/spring-session/docs/current/reference/html5/guides/java-rest.html

WebSocket Integration
https://docs.spring.io/spring-session/docs/current/reference/html5/guides/boot-websocket.html

看到的比较好的学习文档：
从零开始的Spring Session(二) http://blog.didispace.com/spring-session-xjf-2/