shiro.ini配置如下

[main]
securityManager = xxx.security.UniquePrincipalSecurityManager
sessionIdCookie = org.apache.shiro.web.servlet.SimpleCookie
sessionIdCookie.name = sid
sessionIdCookie.path = /
sessionIdCookie.maxAge = 1800
sessionIdCookie.httpOnly = true
passwordService = org.apache.shiro.authc.credential.DefaultPasswordService
passwordMatcher = org.apache.shiro.authc.credential.HashedCredentialsMatcher
passwordMatcher.hashAlgorithmName = md5
shiroDbRealm = xxx.security.ShiroAuthorizingRealm
shiroDbRealm.credentialsMatcher = $passwordMatcher
securityManager.realms = $shiroDbRealm
sessionDAO = org.apache.shiro.session.mgt.eis.EnterpriseCacheSessionDAO
sessionDAO.activeSessionsCacheName = shiro-activeSessionCache
sessionManager = org.apache.shiro.web.session.mgt.DefaultWebSessionManager
sessionManager.sessionDAO = $sessionDAO
sessionManager.globalSessionTimeout = 3600000
sessionManager.sessionIdCookie = $sessionIdCookie
sessionManager.deleteInvalidSessions = true
sessionValidationScheduler = org.apache.shiro.session.mgt.ExecutorServiceSessionValidationScheduler
sessionValidationScheduler.interval = 3600000
sessionManager.sessionValidationScheduler = $sessionValidationScheduler

securityManager.sessionManager = $sessionManager
cacheManager = org.apache.shiro.cache.ehcache.EhCacheManager
cacheManager.cacheManagerConfigFile = classpath:ehcache.xml
#cacheManager = org.apache.shiro.cache.MemoryConstrainedCacheManager
securityManager.cacheManager = $cacheManager

undertow.txt配置如下

undertow.session.timeout=3600

undertow.default-session-timeout = 60

可是好像都没有什么效果，感觉都不到30分钟就要重新登录了。请教下类似环境的朋友这个具体怎么配置。