修改HTTP协议状态码

HttpServletResponse response = ServletActionContext.getResponse();HttpServletRequest request= ServletActionContext.getRequest();response.setStatus(HttpServletResponse.SC_NOT_FOUND);try {request.getRequestDispatcher("/404.htm").forward(request,response);} catch (ServletException e) {// TODO Auto-generated catch blocke.printStackTrace();} catch (IOException e) {// TODO Auto-generated catch blocke.printStackTrace();}