On Nov 10, 2015, at 11:52 AM, jorge lima <jorge.ayala2012@gmail.com> wrote:

Hi,

thanks for the answer again, I'm using now this okhttp and looks very good for me, the problem is that I need to know how to set the proper ALPN boot jar in the bootclasspath (Jetty), I'm having troubles:

java -Xbootclasspath/p:<path_to_alpn_boot_jar> ...

How I'm gonna put a path to alpn boot jar if I don't have any?

Here is the link:

https://www.eclipse.org/jetty/documentation/current/alpn-chapter.html

If you could help me I would appreciate.

2015-11-10 7:34 GMT-03:00 Tomaž Cerar <tomaz.cerar@gmail.com>:

First you will need client api that knows how to handle HTTP2.

java's URL/URI currently don't support http2 at all.

There is JEP http://openjdk.java.net/jeps/110 to add support for it in JDK 9.

AFAK at the moment only https://github.com/square/okhttp client properly supports http2.

But there is lots of development going on around this topic, best to look the internet
for solution that suits you best.

--

tomaz

On Mon, Nov 9, 2015 at 9:12 PM, jorge lima <jorge.ayala2012@gmail.com> wrote:

Hi,

thanks for the answer. But what I really need to know is to discover if some website uses HTTP/2 or not, like how we use in URLConnection with Java:

URL url = new URL("https://developer.jboss.org/");

Map<String, List<String>> map = new HashMap<>();

URL obj = new URL(url.toString());

URLConnection conn = obj.openConnection();

map = conn.getHeaderFields();

...

Thanks again!

2015-11-09 16:51 GMT-03:00 Tomaž Cerar <tomaz.cerar@gmail.com>:

It is not just http/2 header :)

but yes, undertow supports it, to enable it you will need to upgrade to Java 8 and do some additional setup.

see https://developer.jboss.org/message/929048
http://undertow.io/blog/2015/03/26/HTTP2-In-Wildfly.html

for how to setup it.

--

tomaz

On Mon, Nov 9, 2015 at 6:15 PM, jorge lima <jorge.ayala2012@gmail.com> wrote:

Hi,

Is there already a way to get the HTTP/2 response header in Java using Undertow? I really need to know. I'm using JDK 7 on my Java Project. Thank you very much!

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