[main]
# Objects and their properties are defined here,
# Such as the securityManager, Realms and anything
# else needed to build the SecurityManager
authc.loginUrl = /login.jsp
authc.successUrl = /web/index.jsp
#cache manager
builtInCacheManager = org.apache.shiro.cache.MemoryConstrainedCacheManager
securityManager=org.apache.shiro.web.mgt.DefaultWebSecurityManager
securityManager.cacheManager = $builtInCacheManager
securityManager.sessionManager=$sessionManager
#session 必須配置session，強(qiáng)制退出時(shí)，通過(guò)將session移除實(shí)現(xiàn)
sessionManager=org.apache.shiro.web.session.mgt.DefaultWebSessionManager
sessionManager.sessionDAO=$sessionDAO
sessionDAO=org.apache.shiro.session.mgt.eis.MemorySessionDAO
# Create ldap realm
ldapRealm = org.apache.shiro.realm.ldap.JndiLdapRealm
#......
# Configure JDBC realm datasource
dataSource = org.postgresql.ds.PGPoolingDataSource
#.......
# Create JDBC realm.
jdbcRealm.permissionsLookupEnabled = true
jdbcRealm = org.apache.shiro.realm.jdbc.JdbcRealm
jdbcRealm.userRolesQuery = ......
jdbcRealm.permissionsQuery = ......
jdbcRealm.dataSource = $dataSource
#self realm
localAuthorizingRealm = com.redbudtek.shiro.LocalAuthorizingRealm
securityManager.realms = $ldapRealm, $localAuthorizingRealm

在 LocalAuthorizingRealm 中，用戶登錄進(jìn)行認(rèn)證之前，先將該用戶的其他session移除：

@Override
protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken authenticationToken) throws AuthenticationException {
String userName = (String)authenticationToken.getPrincipal();
//處理session
DefaultWebSecurityManager securityManager = (DefaultWebSecurityManager) SecurityUtils.getSecurityManager();
DefaultWebSessionManager sessionManager = (DefaultWebSessionManager)securityManager.getSessionManager();
Collection<Session> sessions = sessionManager.getSessionDAO().getActiveSessions();//獲取當(dāng)前已登錄的用戶session列表
for(Session session:sessions){
//清除該用戶以前登錄時(shí)保存的session
if(userName.equals(String.valueOf(session.getAttribute(DefaultSubjectContext.PRINCIPALS_SESSION_KEY)))) {
sessionManager.getSessionDAO().delete(session);
}
}
String pwd = null;
return new SimpleAuthenticationInfo(userName,pwd,getName());
}

當(dāng)session刪除之后，必須有客戶端與服務(wù)器端的交互，shiro才能進(jìn)行認(rèn)證判斷。在與服務(wù)器交互時(shí)，subject信息截圖如下：

此時(shí)的登錄的用戶認(rèn)證已經(jīng)失效，可以對(duì)客戶端做出響應(yīng)。

以上所述是小編給大家介紹的shiro實(shí)現(xiàn)單點(diǎn)登錄(一個(gè)用戶同一時(shí)刻只能在一個(gè)地方登錄)，希望對(duì)大家有所幫助，如果大家有任何疑問(wèn)請(qǐng)給我留言，小編會(huì)及時(shí)回復(fù)大家的。在此也非常感謝大家對(duì)腳本之家網(wǎng)站的支持！

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