%@ page import= "jakarta.servlet.http.* , java.lang.Object" %> <%HttpSession session1 = request.getSession(true); Object done = session1.getAttribute("logon.isDone"); if (done == null) { session1.setAttribute("login.target", HttpUtils.getRequestURL(request).toString()); response.sendRedirect(request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + request.getContextPath() +"/login.jsp"); return; }%>