Re: [jetty-users] How to set the local IP address when using Http2Client

[Simone Bordet <sbordet@xxxxxxxxxxx>]

Hi,

On Wed, Nov 1, 2017 at 3:23 AM, Cao, William (NSB - CN/Qingdao)
<william.cao@xxxxxxxxxxxxxxx> wrote:
> Hi,
>
> I am trying to use Jetty 9.4.7 + JDK1.8.0_141 as the HTTP2 client. I used
> the sample code in below link.  In my client host, there are multiple IP
> addresses. Since there is no local IP address specified in the code, the
> client will use one as the local ip address to send the http2 request out.
> However, I need to set the local IP address but not to use the default one.
> How to set the local IP address before sending out the request?

This functionality is available if you use Jetty's HttpClient with the
HTTP/2 transport, see
http://www.eclipse.org/jetty/documentation/current/http-client-transport.html#_http_2_transport.

With that setup, you can do:

HTTP2Client h2Client = new HTTP2Client();
HttpClientTransportOverHTTP2 transport = new
HttpClientTransportOverHTTP2(h2Client);
HttpClient client = new HttpClient(transport, null);
client.setBindAddress(<your local address here>);
client.start();

If you want to use directly the low-level HTTP2Client, you can do it
in this way:

HTTP2Client h2Client = new HTTP2Client() {
    @Override
    protected void configure(SocketChannel channel) throws IOException {
        super.configure(channel);
        channel.bind(<your local address here>);
    }
};

Cheers

-- 
Simone Bordet
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