<% request.getSession(true);%>
<%
if ( request.getRequestedSessionId()==null ) {
String src= request.getServletPath();
int index= src.lastIndexOf("/");
if ( index>=0 ) src= src.substring(index+1);
String qs= request.getQueryString();
response.sendRedirect(src + (qs!=null&&qs.trim().length()>0?("?" + qs):""));
}
%>
<%
if ( request.getRequestedSessionId()==null ) {
String src= request.getServletPath();
int index= src.lastIndexOf("/");
if ( index>=0 ) src= src.substring(index+1);
String qs= request.getQueryString();
response.sendRedirect(src + (qs!=null&&qs.trim().length()>0?("?" + qs):""));
}
%>
应该没什么实际用处……