∷   <%@ page language="java" import="com.circsh.User.*"%> <% UserBase user = (UserBase) session.getAttribute("circshCommUser"); if(user==null){ %> <%String errMsg = (String)request.getAttribute("errMsg");%> <%if(errMsg !=null){%> <%}%> 用户名 密　码 <%=request.getAttribute("errMsg")%> <%}%>