checklogin.jsp

这个是j2eejava web 编程精要十五讲的全部源码。对学习java web编程的人来说是很能得的资料

<%@ page language="java" import="foton.user.*,java.util.*"%>
<%@ page contentType="text/html; charset=GB2312" %>
<%
  Object obj = session.getAttribute("logon01");
  userInfo userInfo = new userInfo();
  String password = "";
  String userID = "";
  //String userType = "";
  if(obj == null){
%>
  <script language="javascript">
	alert('您尚未登录或超时，请登录进入！');
   //if(confirm("Please")) 
	window.top.location="../index/index.jsp";
   //else window.close();
  </script>
<%
	//System.out.println("用户尚未登录.");
	//response.sendRedirect("road-index.jsp");
  }else{
	userInfo = (userInfo)obj;
	userID = userInfo.getUserID();
	password = userInfo.getPassword();
  }
%>