[undertow-dev] HTTP/2 Response Header in Java

[Tomaž Cerar]

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 at 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 at 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 at 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!
>>>
>>> _______________________________________________
>>> undertow-dev mailing list
>>> undertow-dev at lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/undertow-dev
>>>
>>
>>
>
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