How to filter all incoming requests, not just those associated with servlets?

Question

I adore with the built-in Jetty, and I wonder why my filter only intercepts /hi, and not any other incoming request. Here is my example:

Without a filter:

localhost:8080/hi
=> "Hello"
localhost:8080/foo
=> 404

With filter:

localhost:8080/hi
=> "Hello from filter"
localhost:8080/foo
=> 404

I expect the last 404 to return "Hello from filter". What am I missing?

Server server=new Server(8080);

ServletContextHandler context=
    new ServletContextHandler(ServletContextHandler.SESSIONS);

context.setContextPath("/");
context.addFilter(DispatchFilter.class,"/*",1);
context.addServlet(HelloServlet.class,"/hi");

server.setHandler(context);
server.start();
server.join();

To clarify, my example is just a simplified view of what I want to do. My intention is to DispatchFilterintercept every request. If certain criteria are not met, then it should move on, otherwise return something obtained from the request path.

Answer 1

javax.servlet.Filter.doFilter()

doFilter , / - .

- " ". /foo , .

, :

context.addServlet(org.mortbay.jetty.servlet.DefaultServlet, "/");

, .