答案是:子系統會同步登出。
可以跟蹤源碼(這裡cas版本是4.x)
調用流程如下: terminateSessionAction.terminate(flowRequestContext) centralAuthenticationService.destroyTicketGrantingTicket(tgtId) 實作類CentralAuthenticationServiceImpl.destroyTicketGrantingTicket(tgtId) logoutManager.performLogout(ticket); 實作類LogoutManagerImpl.performLogout(ticket); handleLogoutForSloService((SingleLogoutService) service, entry.getKey()); performBackChannelLogout(logoutRequest) httpClient.sendMessageToEndPoint(msg);
最後調用了httpClient通知子系統,子系統終結本地session。