1 /*
2 * ====================================================================
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 * ====================================================================
20 *
21 * This software consists of voluntary contributions made by many
22 * individuals on behalf of the Apache Software Foundation. For more
23 * information on the Apache Software Foundation, please see
24 * <http://www.apache.org/>.
25 *
26 */
27 package org.apache.hc.client5.http.examples;
28
29 import java.util.ArrayList;
30 import java.util.List;
31
32 import org.apache.hc.client5.http.classic.methods.HttpGet;
33 import org.apache.hc.client5.http.classic.methods.HttpPost;
34 import org.apache.hc.client5.http.entity.UrlEncodedFormEntity;
35 import org.apache.hc.client5.http.impl.classic.CloseableHttpClient;
36 import org.apache.hc.client5.http.impl.classic.CloseableHttpResponse;
37 import org.apache.hc.client5.http.impl.classic.HttpClients;
38 import org.apache.hc.core5.http.HttpEntity;
39 import org.apache.hc.core5.http.NameValuePair;
40 import org.apache.hc.core5.http.io.entity.EntityUtils;
41 import org.apache.hc.core5.http.message.BasicNameValuePair;
42
43 public class QuickStart {
44
45 public static void main(final String[] args) throws Exception {
46 try (final CloseableHttpClient httpclient = HttpClients.createDefault()) {
47 final HttpGet httpGet = new HttpGet("http://httpbin.org/get");
48 // The underlying HTTP connection is still held by the response object
49 // to allow the response content to be streamed directly from the network socket.
50 // In order to ensure correct deallocation of system resources
51 // the user MUST call CloseableHttpResponse#close() from a finally clause.
52 // Please note that if response content is not fully consumed the underlying
53 // connection cannot be safely re-used and will be shut down and discarded
54 // by the connection manager.
55 try (final CloseableHttpResponse response1 = httpclient.execute(httpGet)) {
56 System.out.println(response1.getCode() + " " + response1.getReasonPhrase());
57 final HttpEntity entity1 = response1.getEntity();
58 // do something useful with the response body
59 // and ensure it is fully consumed
60 EntityUtils.consume(entity1);
61 }
62
63 final HttpPost httpPost = new HttpPost("http://httpbin.org/post");
64 final List<NameValuePair> nvps = new ArrayList<>();
65 nvps.add(new BasicNameValuePair("username", "vip"));
66 nvps.add(new BasicNameValuePair("password", "secret"));
67 httpPost.setEntity(new UrlEncodedFormEntity(nvps));
68
69 try (final CloseableHttpResponse response2 = httpclient.execute(httpPost)) {
70 System.out.println(response2.getCode() + " " + response2.getReasonPhrase());
71 final HttpEntity entity2 = response2.getEntity();
72 // do something useful with the response body
73 // and ensure it is fully consumed
74 EntityUtils.consume(entity2);
75 }
76 }
77 }
78
79 }