帮忙看看这语句问题在哪?(在线)
下列语句是servlet中的私有方法中的开始部分,但当我运行这servlet时sendRedirect不执行,什么问题?高手指教,谢了!
private void showAddCartContent(HttpServletRequest request, HttpServletResponse response, PrintWriter out) throws ServletException, IOException {
HttpSession session = request.getSession(false);
if ((session == null) || (session.getAttribute("UID") == null)) {
response.sendRedirect(root+"?action=login");
return;
}