welcome.jsp

一个简单的网上商店系统

<%@ page contentType="text/html;charset=gb2312"%>
<%@ include file="check.jsp" %>
<% String userid="",username="";
   userid=(String)request.getSession(true).getAttribute("userid");
   username=(String)request.getSession(true).getAttribute("username");
   if ((userid!=null)&&(username!=null)){
      out.println("<font size=36 color='red'><h1>欢迎来到网上书店购物！</h1></font>");      
      }
 %>