http/https与websocket的ws/wss的关系以及通过Nginx的配置

http/https与websocket的ws/wss的关系 - 哒哒哒 - CSDN博客
https://blog.csdn.net/Garrettzxd/article/details/81674251

【Tomcat】-- Tomcat + Nginx反向代理https和wss并解决获取客户端真实IP、域名、协议、端口 - 封宸落宇的专栏 - CSDN博客
https://blog.csdn.net/fcly2013/article/details/77161718