checksession.jsp
<%@page import="com.bn.car.core.Constants"%> <%@page import="com.bn.car.biz.sysadmin.dto.SysAdminInfoDTO"%> <%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <% SysAdminInfoDTO dto = (SysAdminInfoDTO)session.getAttribute("sysAdminInfoDto"); // ////ln("include page println...."); if(dto == null){ %> <script type="text/javascript"> window.parent.location.href="<%=Constants.ROOT%>property/index.jsp"; alert("非法访问!!请登录后台系统!!"); </script> <% return; } %>
在后台引用该jsp页面:
<jsp:include page="include/checksession.jsp" ></jsp:include>
使用了frameset,需要使用window.parent来跳转。~!
跳转的路径最好写成绝对路径才保证,相对路径在某些场合的情况下往往不可信。~!