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What is Http/2 Client in Java 9?
Http/2 Client API introduced in Java 9. It has more performance improvements over Http/1.1 and also supports server-side push events. This makes the website efficient and faster to browse. Http/2 Client is an incubator module named jdk.incubator.httpclient, which means that all features are still not finalized, and new changes may come in future versions of java. It exports jdk.incubator.http package that contains all public APIs.
To use Http/2 Client, we need to use the incubator module, we simply pass the httpclient module into JShell using the "–add-modules" command as below
C:\>jshell -v --add-modules jdk.incubator.httpclient | Welcome to JShell -- Version 9.0.4 | For an introduction type: /help intro
jshell> import jdk.incubator.http.*; jshell> HttpClient httpClient = HttpClient.newHttpClient(); httpClient ==> jdk.incubator.http.HttpClientImpl@534df152 | created variable httpClient : HttpClient jshell> HttpRequest httpRequest = HttpRequest.newBuilder().uri(new URI("https: //www.google.com")).GET().build(); httpRequest ==> https://www.google.com GET | created variable httpRequest : HttpRequest jshell> HttpResponse httpResponse = httpClient.send(httpRequest, HttpResponse.BodyHandler.asString()); httpResponse ==> jdk.incubator.http.HttpResponseImpl@609cd4d8 | created variable httpResponse : HttpResponse jshell> System.out.println(httpResponse.statusCode()); 403 jshell> System.out.println(httpResponse.body()); Apache HTTP Server Test Page powered by CentOS Testing 123..
This page is used to test the proper operation of the Apache HTTP server after it has been insta lled. If you can read this page it means that this site is working properly. Thi s server is powered by CentOS.
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You should add your website content to the directory /var/www/html/.
To prevent this page from ever being used, follow the instructions in the file /etc/httpd/conf.d/welcome.conf.Promoting Apache and CentOS
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