springrain 的 session 问题

Question

@光石头 你好，想跟你请教个问题：

DEBUG: org.apache.shiro.web.servlet.SimpleCookie - Found 'SHAREJSESSIONID' cookie value [ed45e3e1-4c00-4e9e-9018-917f6ac59176]
DEBUG: org.apache.shiro.web.servlet.SimpleCookie - Found 'SHAREJSESSIONID' cookie value [ed45e3e1-4c00-4e9e-9018-917f6ac59176]
DEBUG: org.apache.shiro.web.servlet.SimpleCookie - Found 'SHAREJSESSIONID' cookie value [ed45e3e1-4c00-4e9e-9018-917f6ac59176]
DEBUG: org.apache.shiro.web.servlet.SimpleCookie - Found 'SHAREJSESSIONID' cookie value [a578665e-b7ea-48d6-ac23-b0df85cdb55e]
DEBUG: org.apache.shiro.mgt.DefaultSecurityManager - Resolved SubjectContext context session is invalid.  Ignoring and creating an anonymous (session-less) Subject instance.
org.apache.shiro.session.UnknownSessionException: There is no session with id [a578665e-b7ea-48d6-ac23-b0df85cdb55e]
        at org.apache.shiro.session.mgt.eis.AbstractSessionDAO.readSession(AbstractSessionDAO.java:170)
        at org.apache.shiro.session.mgt.eis.CachingSessionDAO.readSession(CachingSessionDAO.java:261)
        at org.apache.shiro.session.mgt.DefaultSessionManager.retrieveSessionFromDataSource(DefaultSessionManager.java:236)
        at org.apache.shiro.session.mgt.DefaultSessionManager.retrieveSession(DefaultSessionManager.java:222)
        at org.apache.shiro.session.mgt.AbstractValidatingSessionManager.doGetSession(AbstractValidatingSessionManager.java:118)
        at org.apache.shiro.session.mgt.AbstractNativeSessionManager.lookupSession(AbstractNativeSessionManager.java:108)
        at org.apache.shiro.session.mgt.AbstractNativeSessionManager.getSession(AbstractNativeSessionManager.java:100)
        at org.apache.shiro.mgt.SessionsSecurityManager.getSession(SessionsSecurityManager.java:125)
        at org.apache.shiro.mgt.DefaultSecurityManager.resolveContextSession(DefaultSecurityManager.java:456)
        at org.apache.shiro.mgt.DefaultSecurityManager.resolveSession(DefaultSecurityManager.java:442)
        at org.apache.shiro.mgt.DefaultSecurityManager.createSubject(DefaultSecurityManager.java:338)
        at org.apache.shiro.subject.Subject$Builder.buildSubject(Subject.java:846)
请教一下，为什么一分钟前这个session还在，点保存的时候就session就不再了？当一个人用的时候没出现过这问题，两个人以上用系统就容易出现这个问题！

Answer 1

在同一个域名下吗？