对话过期跳到登录界面

会话过期跳到登录界面

public String detect() throws Exception{String currentUser = (String)getSession().get("currentUser");if(currentUser==null){log.info("session is timeout");returnPageURL = "/timeoutRedirect.jsp";return "redirect";}log.info("session is not timeout");returnPageURL = "/system/detect/computer_detect.jsp";return "dispatcher";}

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