Shiro + Redis 经常提示 UnknownSessionException：There is no session with id [XXX]

秒速五厘米 2022-09-11 01:22 3阅读 0赞

背景：整合Shiro和redis后，经常会提示There is no session with id报错，但不影响运行。

框架：使用的是shiro-redis框架。

解决方案：重新 DefaultWebSessionManager 类的 getSessionId 方法，在里面加上 session 是否过期的判断，如果过期就返回 null。

@Override
        protected Serializable getSessionId(ServletRequest request, ServletResponse response) {
            String id = WebUtils.toHttp(request).getHeader(AUTHORIZATION);
            //如果请求头中有 Authorization 则其值为sessionId
            if (StringUtils.isNotBlank(id)) {
                request.setAttribute(ShiroHttpServletRequest.REFERENCED_SESSION_ID_SOURCE, REFERENCED_SESSION_ID_SOURCE);
                request.setAttribute(ShiroHttpServletRequest.REFERENCED_SESSION_ID, id);
                request.setAttribute(ShiroHttpServletRequest.REFERENCED_SESSION_ID_IS_VALID, Boolean.TRUE);
                // 判断是否过期
                if (!this.isSessionExpired(id)) {
                    return null;
                }
                return id;
            } else {
                //否则按默认规则从cookie取sessionId
                return super.getSessionId(request, response);
            }
        }

方法是在这篇文章看到的：  
[Spring Boot+Shiro+redis报UnknownSessionException:There is no session with id(redis中session失效导致异常)\_蒙牛甜甜圈的博客-CSDN博客][Spring Boot_Shiro_redis_UnknownSessionException_There is no session with id_redis_session_-CSDN]

Shiro + JWT 整合教程（找解决方法时看到的，挺不错）：

[GitHub - Smith-Cruise/Spring-Boot-Shiro: Shiro基于SpringBoot +JWT搭建简单的restful服务][GitHub - Smith-Cruise_Spring-Boot-Shiro_ Shiro_SpringBoot _JWT_restful]

[Spring Boot_Shiro_redis_UnknownSessionException_There is no session with id_redis_session_-CSDN]: https://blog.csdn.net/qq_42526272/article/details/96314283?utm_medium=distribute.pc_relevant_t0.none-task-blog-2~default~CTRLIST~default-1.no_search_link&depth_1-utm_source=distribute.pc_relevant_t0.none-task-blog-2~default~CTRLIST~default-1.no_search_link
[GitHub - Smith-Cruise_Spring-Boot-Shiro_ Shiro_SpringBoot _JWT_restful]: https://github.com/Smith-Cruise/Spring-Boot-Shiro