error.jsp

jsp注册

 <%@   page   contentType="text/html;   charset=GBK"%>   
 <jsp:useBean id="db" class="data.shopdb"/>
 <% 
 String shopname= (String)session.getAttribute("shopname");
 if(db.checkshopname(shopname)){
 %>
 <script language="JavaScript">
             alert("可以使用的店铺！");
           </script>
 <%}else{%>
  <script language="JavaScript">
             alert("店名已经被使用！");
           </script>
 <%}%>
<meta   HTTP-EQUIV=REFRESH   CONTENT="0;URL=/xunibuluo/shop/soldshop.jsp">