jetty启动ajp端口

[jiaowei051]

jetty5.1.14版本，请问在下面代码中如何启动ajp13端口
public static void main(String[] args)
throws Exception
{
HttpServer server = new HttpServer();
server.addListener(":8080");
HttpContext context = server.getContext("/");
ServletHandler handler= new ServletHandler();
handler.addServlet("Dump","/dump/*",
"org.mortbay.servlet.Dump");
context.addHandler(handler);
server.start();
server.join();
}