Java tutorial
/* * Copyright 2015-2016 the original author or authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ import java.util.Collections; import java.util.Map; import javax.net.ssl.SSLContext; import org.apache.http.impl.NoConnectionReuseStrategy; import org.apache.http.impl.client.CloseableHttpClient; import org.apache.http.impl.client.HttpClientBuilder; import org.springframework.http.HttpEntity; import org.springframework.http.HttpHeaders; import org.springframework.http.HttpMethod; import org.springframework.http.ResponseEntity; import org.springframework.http.client.HttpComponentsClientHttpRequestFactory; import org.springframework.web.client.RestTemplate; /** * @author Erich Eichinger * @since 01/03/2016 */ public class HCEngine implements Engine { @Override public ResponseEntity<String> submit(JCurlRequestOptions requestOptions) throws Exception { ResponseEntity<String> stringResponseEntity = null; try (CloseableHttpClient hc = createCloseableHttpClient()) { for (int i = 0; i < requestOptions.getCount(); i++) { final HttpHeaders headers = new HttpHeaders(); for (Map.Entry<String, String> e : requestOptions.getHeaderMap().entrySet()) { headers.put(e.getKey(), Collections.singletonList(e.getValue())); } final HttpEntity<Void> requestEntity = new HttpEntity<>(headers); RestTemplate template = new RestTemplate(new HttpComponentsClientHttpRequestFactory(hc)); stringResponseEntity = template.exchange(requestOptions.getUrl(), HttpMethod.GET, requestEntity, String.class); System.out.println(stringResponseEntity.getBody()); } return stringResponseEntity; } } private CloseableHttpClient createCloseableHttpClient() throws Exception { HttpClientBuilder builder = HttpClientBuilder.create(); builder.useSystemProperties(); builder.setConnectionReuseStrategy(NoConnectionReuseStrategy.INSTANCE); builder.setSSLContext(SSLContext.getDefault()); CloseableHttpClient hc = builder.build(); return hc; } }