servlet和JSP过滤器Filter

servlet和JSP过滤器Filter(17) * each time an associated servlet or JSP page is Accessed.
*/

public class ReportFilter implements Filter {
  public void doFilter(ServletRequest request,
                  ServletResponse response,
                  FilterChain chain)
      throws ServletException, IOException {
    HttpServletRequest req = (HttpServletRequest)request;
    System.out.println(req.getRemoteHost() +
                   " tried to Access " +