JAVA-6406: Update 'Exploring the New HTTP Client in Java' article
This commit is contained in:
Rafael Lopez
parent
b8a9ea2974
commit
e41a8d5cc8
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@ -6,7 +6,6 @@ This module contains articles about core Java features that have been introduced
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- [New Features in Java 9](https://www.baeldung.com/new-java-9)
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- [Java 9 Variable Handles Demystified](http://www.baeldung.com/java-variable-handles)
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- [Exploring the New HTTP Client in Java 9 and 11](http://www.baeldung.com/java-9-http-client)
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- [Multi-Release Jar Files](https://www.baeldung.com/java-multi-release-jar)
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- [Ahead of Time Compilation (AoT)](https://www.baeldung.com/ahead-of-time-compilation)
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- [Introduction to Java 9 StackWalking API](https://www.baeldung.com/java-9-stackwalking-api)
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@ -1,84 +0,0 @@
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/*
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* To change this license header, choose License Headers in Project Properties.
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* To change this template file, choose Tools | Templates
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* and open the template in the editor.
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*/
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package com.baeldung.httpclient;
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import java.io.File;
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import java.io.IOException;
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import java.net.URI;
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import java.net.URISyntaxException;
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import java.nio.file.Paths;
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import java.util.Arrays;
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import java.util.List;
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import java.util.concurrent.CompletableFuture;
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import java.util.stream.Collectors;
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import jdk.incubator.http.HttpClient;
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import jdk.incubator.http.HttpRequest;
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import jdk.incubator.http.HttpRequest.BodyProcessor;
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import jdk.incubator.http.HttpResponse;
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import jdk.incubator.http.HttpResponse.BodyHandler;
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/**
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*
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* @author pkaria
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*/
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public class HttpClientExample {
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public static void main(String[] args) throws Exception {
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httpGetRequest();
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httpPostRequest();
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asynchronousRequest();
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asynchronousMultipleRequests();
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}
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public static void httpGetRequest() throws URISyntaxException, IOException, InterruptedException {
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HttpClient client = HttpClient.newHttpClient();
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URI httpURI = new URI("http://jsonplaceholder.typicode.com/posts/1");
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HttpRequest request = HttpRequest.newBuilder(httpURI).GET()
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.headers("Accept-Enconding", "gzip, deflate").build();
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HttpResponse<String> response = client.send(request, HttpResponse.BodyHandler.asString());
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String responseBody = response.body();
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int responseStatusCode = response.statusCode();
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System.out.println(responseBody);
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}
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public static void httpPostRequest() throws URISyntaxException, IOException, InterruptedException {
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HttpClient client = HttpClient
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.newBuilder()
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.build();
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HttpRequest request = HttpRequest
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.newBuilder(new URI("http://jsonplaceholder.typicode.com/posts"))
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.POST(BodyProcessor.fromString("Sample Post Request"))
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.build();
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HttpResponse<String> response
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= client.send(request, HttpResponse.BodyHandler.asString());
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String responseBody = response.body();
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System.out.println(responseBody);
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}
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public static void asynchronousRequest() throws URISyntaxException {
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HttpClient client = HttpClient.newHttpClient();
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URI httpURI = new URI("http://jsonplaceholder.typicode.com/posts/1");
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HttpRequest request = HttpRequest.newBuilder(httpURI).GET().build();
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CompletableFuture<HttpResponse<String>> futureResponse = client.sendAsync(request,
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HttpResponse.BodyHandler.asString());
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}
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public static void asynchronousMultipleRequests() throws URISyntaxException {
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List<URI> targets = Arrays.asList(new URI("http://jsonplaceholder.typicode.com/posts/1"), new URI("http://jsonplaceholder.typicode.com/posts/2"));
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HttpClient client = HttpClient.newHttpClient();
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List<CompletableFuture<File>> futures = targets
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.stream()
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.map(target -> client
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.sendAsync(
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HttpRequest.newBuilder(target)
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.GET()
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.build(),
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BodyHandler.asFile(Paths.get("base", target.getPath())))
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.thenApply(response -> response.body())
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.thenApply(path -> path.toFile()))
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.collect(Collectors.toList());
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}
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}
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@ -1,3 +0,0 @@
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module com.baeldung.httpclient {
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requires jdk.incubator.httpclient;
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}
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@ -1,218 +0,0 @@
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package com.baeldung.java9.httpclient;
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import jdk.incubator.http.HttpClient;
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import jdk.incubator.http.HttpRequest;
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import jdk.incubator.http.HttpResponse;
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import org.junit.Test;
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import java.io.IOException;
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import java.net.*;
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import java.util.Arrays;
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import java.util.List;
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import java.util.concurrent.CompletableFuture;
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import java.util.concurrent.ExecutionException;
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import java.util.concurrent.ExecutorService;
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import java.util.concurrent.Executors;
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import java.util.stream.Collectors;
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import static org.hamcrest.CoreMatchers.containsString;
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import static org.hamcrest.CoreMatchers.equalTo;
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import static org.hamcrest.collection.IsEmptyCollection.empty;
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import static org.hamcrest.core.IsNot.not;
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import static org.junit.Assert.assertThat;
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/**
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* Created by adam.
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*/
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public class HttpClientIntegrationTest {
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@Test
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public void shouldReturnSampleDataContentWhenConnectViaSystemProxy() throws IOException, InterruptedException, URISyntaxException {
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HttpRequest request = HttpRequest.newBuilder()
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.uri(new URI("https://postman-echo.com/post"))
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.headers("Content-Type", "text/plain;charset=UTF-8")
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.POST(HttpRequest.BodyProcessor.fromString("Sample body"))
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.build();
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HttpResponse<String> response = HttpClient.newBuilder()
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.proxy(ProxySelector.getDefault())
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.build()
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.send(request, HttpResponse.BodyHandler.asString());
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assertThat(response.statusCode(), equalTo(HttpURLConnection.HTTP_OK));
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assertThat(response.body(), containsString("Sample body"));
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}
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@Test
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public void shouldNotFollowRedirectWhenSetToDefaultNever() throws IOException, InterruptedException, URISyntaxException {
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HttpRequest request = HttpRequest.newBuilder()
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.uri(new URI("http://stackoverflow.com"))
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.version(HttpClient.Version.HTTP_1_1)
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.GET()
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.build();
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HttpResponse<String> response = HttpClient.newBuilder()
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.build()
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.send(request, HttpResponse.BodyHandler.asString());
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assertThat(response.statusCode(), equalTo(HttpURLConnection.HTTP_MOVED_PERM));
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assertThat(response.body(), containsString(""));
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}
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@Test
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public void shouldFollowRedirectWhenSetToAlways() throws IOException, InterruptedException, URISyntaxException {
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HttpRequest request = HttpRequest.newBuilder()
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.uri(new URI("http://stackoverflow.com"))
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.version(HttpClient.Version.HTTP_1_1)
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.GET()
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.build();
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HttpResponse<String> response = HttpClient.newBuilder()
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.followRedirects(HttpClient.Redirect.ALWAYS)
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.build()
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.send(request, HttpResponse.BodyHandler.asString());
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assertThat(response.statusCode(), equalTo(HttpURLConnection.HTTP_OK));
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assertThat(response.finalRequest()
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.uri()
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.toString(), equalTo("https://stackoverflow.com/"));
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}
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@Test
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public void shouldReturnOKStatusForAuthenticatedAccess() throws URISyntaxException, IOException, InterruptedException {
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HttpRequest request = HttpRequest.newBuilder()
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.uri(new URI("https://postman-echo.com/basic-auth"))
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.GET()
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.build();
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HttpResponse<String> response = HttpClient.newBuilder()
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.authenticator(new Authenticator() {
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@Override
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protected PasswordAuthentication getPasswordAuthentication() {
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return new PasswordAuthentication("postman", "password".toCharArray());
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}
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})
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.build()
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.send(request, HttpResponse.BodyHandler.asString());
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assertThat(response.statusCode(), equalTo(HttpURLConnection.HTTP_OK));
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}
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@Test
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public void shouldSendRequestAsync() throws URISyntaxException, InterruptedException, ExecutionException {
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HttpRequest request = HttpRequest.newBuilder()
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.uri(new URI("https://postman-echo.com/post"))
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.headers("Content-Type", "text/plain;charset=UTF-8")
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.POST(HttpRequest.BodyProcessor.fromString("Sample body"))
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.build();
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CompletableFuture<HttpResponse<String>> response = HttpClient.newBuilder()
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.build()
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.sendAsync(request, HttpResponse.BodyHandler.asString());
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assertThat(response.get()
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.statusCode(), equalTo(HttpURLConnection.HTTP_OK));
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}
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@Test
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public void shouldUseJustTwoThreadWhenProcessingSendAsyncRequest() throws URISyntaxException, InterruptedException, ExecutionException {
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HttpRequest request = HttpRequest.newBuilder()
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.uri(new URI("https://postman-echo.com/get"))
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.GET()
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.build();
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ExecutorService executorService = Executors.newFixedThreadPool(2);
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CompletableFuture<HttpResponse<String>> response1 = HttpClient.newBuilder()
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.executor(executorService)
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.build()
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.sendAsync(request, HttpResponse.BodyHandler.asString());
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CompletableFuture<HttpResponse<String>> response2 = HttpClient.newBuilder()
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.executor(executorService)
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.build()
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.sendAsync(request, HttpResponse.BodyHandler.asString());
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CompletableFuture<HttpResponse<String>> response3 = HttpClient.newBuilder()
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.executor(executorService)
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.build()
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.sendAsync(request, HttpResponse.BodyHandler.asString());
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CompletableFuture.allOf(response1, response2, response3)
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.join();
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assertThat(response1.get()
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.statusCode(), equalTo(HttpURLConnection.HTTP_OK));
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assertThat(response2.get()
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.statusCode(), equalTo(HttpURLConnection.HTTP_OK));
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assertThat(response3.get()
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.statusCode(), equalTo(HttpURLConnection.HTTP_OK));
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}
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@Test
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public void shouldNotStoreCookieWhenPolicyAcceptNone() throws URISyntaxException, IOException, InterruptedException {
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HttpRequest request = HttpRequest.newBuilder()
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.uri(new URI("https://postman-echo.com/get"))
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.GET()
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.build();
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HttpClient httpClient = HttpClient.newBuilder()
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.cookieManager(new CookieManager(null, CookiePolicy.ACCEPT_NONE))
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.build();
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httpClient.send(request, HttpResponse.BodyHandler.asString());
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assertThat(httpClient.cookieManager()
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.get()
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.getCookieStore()
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.getCookies(), empty());
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}
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@Test
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public void shouldStoreCookieWhenPolicyAcceptAll() throws URISyntaxException, IOException, InterruptedException {
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HttpRequest request = HttpRequest.newBuilder()
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.uri(new URI("https://postman-echo.com/get"))
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.GET()
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.build();
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HttpClient httpClient = HttpClient.newBuilder()
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.cookieManager(new CookieManager(null, CookiePolicy.ACCEPT_ALL))
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.build();
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httpClient.send(request, HttpResponse.BodyHandler.asString());
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assertThat(httpClient.cookieManager()
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.get()
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.getCookieStore()
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.getCookies(), not(empty()));
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}
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@Test
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public void shouldProcessMultipleRequestViaStream() throws URISyntaxException, ExecutionException, InterruptedException {
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List<URI> targets = Arrays.asList(new URI("https://postman-echo.com/get?foo1=bar1"), new URI("https://postman-echo.com/get?foo2=bar2"));
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HttpClient client = HttpClient.newHttpClient();
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List<CompletableFuture<String>> futures = targets.stream()
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.map(target -> client.sendAsync(HttpRequest.newBuilder(target)
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.GET()
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.build(), HttpResponse.BodyHandler.asString())
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.thenApply(response -> response.body()))
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.collect(Collectors.toList());
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CompletableFuture.allOf(futures.toArray(new CompletableFuture[0]))
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.join();
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if (futures.get(0)
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.get()
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.contains("foo1")) {
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assertThat(futures.get(0)
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.get(), containsString("bar1"));
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assertThat(futures.get(1)
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.get(), containsString("bar2"));
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} else {
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assertThat(futures.get(1)
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.get(), containsString("bar2"));
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assertThat(futures.get(1)
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.get(), containsString("bar1"));
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}
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}
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}
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@ -1,171 +0,0 @@
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package com.baeldung.java9.httpclient;
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import jdk.incubator.http.HttpClient;
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import jdk.incubator.http.HttpRequest;
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import jdk.incubator.http.HttpResponse;
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import org.junit.Test;
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import java.io.ByteArrayInputStream;
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import java.io.IOException;
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import java.net.HttpURLConnection;
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import java.net.URI;
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import java.net.URISyntaxException;
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import java.nio.file.Paths;
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import java.security.NoSuchAlgorithmException;
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import java.time.Duration;
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import static java.time.temporal.ChronoUnit.SECONDS;
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import static org.hamcrest.CoreMatchers.containsString;
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import static org.hamcrest.CoreMatchers.equalTo;
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import static org.junit.Assert.assertThat;
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/**
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* Created by adam.
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*/
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public class HttpRequestIntegrationTest {
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@Test
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public void shouldReturnStatusOKWhenSendGetRequest() throws IOException, InterruptedException, URISyntaxException {
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HttpRequest request = HttpRequest.newBuilder()
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.uri(new URI("https://postman-echo.com/get"))
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.GET()
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.build();
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HttpResponse<String> response = HttpClient.newHttpClient()
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.send(request, HttpResponse.BodyHandler.asString());
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assertThat(response.statusCode(), equalTo(HttpURLConnection.HTTP_OK));
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}
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@Test
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public void shouldUseHttp2WhenWebsiteUsesHttp2() throws IOException, InterruptedException, URISyntaxException {
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HttpRequest request = HttpRequest.newBuilder()
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.uri(new URI("https://stackoverflow.com"))
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.version(HttpClient.Version.HTTP_2)
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.GET()
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.build();
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HttpResponse<String> response = HttpClient.newHttpClient()
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.send(request, HttpResponse.BodyHandler.asString());
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assertThat(response.statusCode(), equalTo(HttpURLConnection.HTTP_OK));
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assertThat(response.version(), equalTo(HttpClient.Version.HTTP_2));
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}
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@Test
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public void shouldFallbackToHttp1_1WhenWebsiteDoesNotUseHttp2() throws IOException, InterruptedException, URISyntaxException, NoSuchAlgorithmException {
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HttpRequest request = HttpRequest.newBuilder()
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.uri(new URI("https://postman-echo.com/get"))
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.version(HttpClient.Version.HTTP_2)
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.GET()
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.build();
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HttpResponse<String> response = HttpClient.newHttpClient()
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.send(request, HttpResponse.BodyHandler.asString());
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assertThat(response.version(), equalTo(HttpClient.Version.HTTP_1_1));
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}
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@Test
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public void shouldReturnStatusOKWhenSendGetRequestWithDummyHeaders() throws IOException, InterruptedException, URISyntaxException {
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HttpRequest request = HttpRequest.newBuilder()
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.uri(new URI("https://postman-echo.com/get"))
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.headers("key1", "value1", "key2", "value2")
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.GET()
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.build();
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HttpResponse<String> response = HttpClient.newHttpClient()
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.send(request, HttpResponse.BodyHandler.asString());
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assertThat(response.statusCode(), equalTo(HttpURLConnection.HTTP_OK));
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}
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@Test
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public void shouldReturnStatusOKWhenSendGetRequestTimeoutSet() throws IOException, InterruptedException, URISyntaxException {
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HttpRequest request = HttpRequest.newBuilder()
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.uri(new URI("https://postman-echo.com/get"))
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.timeout(Duration.of(10, SECONDS))
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.GET()
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.build();
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HttpResponse<String> response = HttpClient.newHttpClient()
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.send(request, HttpResponse.BodyHandler.asString());
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assertThat(response.statusCode(), equalTo(HttpURLConnection.HTTP_OK));
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}
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@Test
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public void shouldReturnNoContentWhenPostWithNoBody() throws IOException, InterruptedException, URISyntaxException {
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HttpRequest request = HttpRequest.newBuilder()
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.uri(new URI("https://postman-echo.com/post"))
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.POST(HttpRequest.noBody())
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.build();
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HttpResponse<String> response = HttpClient.newHttpClient()
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.send(request, HttpResponse.BodyHandler.asString());
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assertThat(response.statusCode(), equalTo(HttpURLConnection.HTTP_OK));
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}
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@Test
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public void shouldReturnSampleDataContentWhenPostWithBodyText() throws IOException, InterruptedException, URISyntaxException {
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HttpRequest request = HttpRequest.newBuilder()
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.uri(new URI("https://postman-echo.com/post"))
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.headers("Content-Type", "text/plain;charset=UTF-8")
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.POST(HttpRequest.BodyProcessor.fromString("Sample request body"))
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.build();
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HttpResponse<String> response = HttpClient.newHttpClient()
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.send(request, HttpResponse.BodyHandler.asString());
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assertThat(response.statusCode(), equalTo(HttpURLConnection.HTTP_OK));
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assertThat(response.body(), containsString("Sample request body"));
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}
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@Test
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public void shouldReturnSampleDataContentWhenPostWithInputStream() throws IOException, InterruptedException, URISyntaxException {
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byte[] sampleData = "Sample request body".getBytes();
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HttpRequest request = HttpRequest.newBuilder()
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.uri(new URI("https://postman-echo.com/post"))
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.headers("Content-Type", "text/plain;charset=UTF-8")
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.POST(HttpRequest.BodyProcessor.fromInputStream(() -> new ByteArrayInputStream(sampleData)))
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.build();
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HttpResponse<String> response = HttpClient.newHttpClient()
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.send(request, HttpResponse.BodyHandler.asString());
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assertThat(response.statusCode(), equalTo(HttpURLConnection.HTTP_OK));
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assertThat(response.body(), containsString("Sample request body"));
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}
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@Test
|
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public void shouldReturnSampleDataContentWhenPostWithByteArrayProcessorStream() throws IOException, InterruptedException, URISyntaxException {
|
||||
byte[] sampleData = "Sample request body".getBytes();
|
||||
HttpRequest request = HttpRequest.newBuilder()
|
||||
.uri(new URI("https://postman-echo.com/post"))
|
||||
.headers("Content-Type", "text/plain;charset=UTF-8")
|
||||
.POST(HttpRequest.BodyProcessor.fromByteArray(sampleData))
|
||||
.build();
|
||||
|
||||
HttpResponse<String> response = HttpClient.newHttpClient()
|
||||
.send(request, HttpResponse.BodyHandler.asString());
|
||||
|
||||
assertThat(response.statusCode(), equalTo(HttpURLConnection.HTTP_OK));
|
||||
assertThat(response.body(), containsString("Sample request body"));
|
||||
}
|
||||
|
||||
@Test
|
||||
public void shouldReturnSampleDataContentWhenPostWithFileProcessorStream() throws IOException, InterruptedException, URISyntaxException {
|
||||
HttpRequest request = HttpRequest.newBuilder()
|
||||
.uri(new URI("https://postman-echo.com/post"))
|
||||
.headers("Content-Type", "text/plain;charset=UTF-8")
|
||||
.POST(HttpRequest.BodyProcessor.fromFile(Paths.get("src/test/resources/sample.txt")))
|
||||
.build();
|
||||
|
||||
HttpResponse<String> response = HttpClient.newHttpClient()
|
||||
.send(request, HttpResponse.BodyHandler.asString());
|
||||
|
||||
assertThat(response.statusCode(), equalTo(HttpURLConnection.HTTP_OK));
|
||||
assertThat(response.body(), containsString("Sample file content"));
|
||||
}
|
||||
|
||||
}
|
||||
|
|
@ -1,55 +0,0 @@
|
|||
package com.baeldung.java9.httpclient;
|
||||
|
||||
import jdk.incubator.http.HttpClient;
|
||||
import jdk.incubator.http.HttpRequest;
|
||||
import jdk.incubator.http.HttpResponse;
|
||||
import org.junit.Test;
|
||||
|
||||
import java.io.IOException;
|
||||
import java.net.HttpURLConnection;
|
||||
import java.net.URI;
|
||||
import java.net.URISyntaxException;
|
||||
|
||||
import static org.hamcrest.CoreMatchers.equalTo;
|
||||
import static org.hamcrest.Matchers.isEmptyString;
|
||||
import static org.hamcrest.core.IsNot.not;
|
||||
import static org.junit.Assert.assertThat;
|
||||
|
||||
/**
|
||||
* Created by adam.
|
||||
*/
|
||||
public class HttpResponseIntegrationTest {
|
||||
|
||||
@Test
|
||||
public void shouldReturnStatusOKWhenSendGetRequest() throws IOException, InterruptedException, URISyntaxException {
|
||||
HttpRequest request = HttpRequest.newBuilder()
|
||||
.uri(new URI("https://postman-echo.com/get"))
|
||||
.GET()
|
||||
.build();
|
||||
|
||||
HttpResponse<String> response = HttpClient.newHttpClient()
|
||||
.send(request, HttpResponse.BodyHandler.asString());
|
||||
|
||||
assertThat(response.statusCode(), equalTo(HttpURLConnection.HTTP_OK));
|
||||
assertThat(response.body(), not(isEmptyString()));
|
||||
}
|
||||
|
||||
@Test
|
||||
public void shouldResponseURIDifferentThanRequestUIRWhenRedirect() throws IOException, InterruptedException, URISyntaxException {
|
||||
HttpRequest request = HttpRequest.newBuilder()
|
||||
.uri(new URI("http://stackoverflow.com"))
|
||||
.version(HttpClient.Version.HTTP_1_1)
|
||||
.GET()
|
||||
.build();
|
||||
HttpResponse<String> response = HttpClient.newBuilder()
|
||||
.followRedirects(HttpClient.Redirect.ALWAYS)
|
||||
.build()
|
||||
.send(request, HttpResponse.BodyHandler.asString());
|
||||
|
||||
assertThat(request.uri()
|
||||
.toString(), equalTo("http://stackoverflow.com"));
|
||||
assertThat(response.uri()
|
||||
.toString(), equalTo("https://stackoverflow.com/"));
|
||||
}
|
||||
|
||||
}
|
||||
Loading…
Reference in New Issue