Here is how you would add query string parameters using HttpClient 4.2 and later: URIBuilder builder = new URIBuilder(“http://example.com/”); builder.setParameter(“parts”, “all”).setParameter(“action”, “finish”); HttpPost post = new HttpPost(builder.build()); The resulting URI would look like: http://example.com/?parts=all&action=finish
The main entry point of the HttpClient API is the HttpClient interface. The most essential function of HttpClient is to execute HTTP methods. Execution of an HTTP method involves one or several HTTP request / HTTP response exchanges, usually handled internally by HttpClient. CloseableHttpClient is an abstract class which is the base implementation of HttpClient … Read more
This can happen if you have a newline (or other control character) in a JSON string literal. {“foo”: “bar baz”} If you are the one producing the data, replace actual newlines with escaped ones “\\n” when creating your string literals. {“foo”: “bar\nbaz”}
All of the other answers were either deprecated or didn’t work for HttpClient 4.3. Here is a way to allow all hostnames when building an http client. CloseableHttpClient httpClient = HttpClients .custom() .setHostnameVerifier(new AllowAllHostnameVerifier()) .build(); Or if you are using version 4.4 or later, the updated call looks like this: CloseableHttpClient httpClient = HttpClients .custom() … Read more
Relevant imports: import org.apache.http.impl.client.CloseableHttpClient; import org.apache.http.impl.client.HttpClientBuilder; import java.io.IOException; Usage: HttpClient httpClient = HttpClientBuilder.create().build(); EDIT (after Jules’ suggestion): As the build() method returns a CloseableHttpClient which is-a AutoClosable, you can place the declaration in a try-with-resources statement (Java 7+): try (CloseableHttpClient httpClient = HttpClientBuilder.create().build()) { // use httpClient (no need to close it explicitly) } catch … Read more
Here are two examples from my working project. Using EntityUtils and HttpEntity HttpResponse response = httpClient.execute(new HttpGet(URL)); HttpEntity entity = response.getEntity(); String responseString = EntityUtils.toString(entity, “UTF-8”); System.out.println(responseString); Using BasicResponseHandler HttpResponse response = httpClient.execute(new HttpGet(URL)); String responseString = new BasicResponseHandler().handleResponse(response); System.out.println(responseString);
HttpClient is not supported any more in sdk 23. You have to use URLConnection or downgrade to sdk 22 (compile ‘com.android.support:appcompat-v7:22.2.0’) If you need sdk 23, add this to your gradle: android { useLibrary ‘org.apache.http.legacy’ } You also may try to download and include HttpClient jar directly into your project or use OkHttp instead
You basically have four potential solutions to fix a “Not Trusted” exception on Android using httpclient: Trust all certificates. Don’t do this, unless you really know what you’re doing. Create a custom SSLSocketFactory that trusts only your certificate. This works as long as you know exactly which servers you’re going to connect to, but as … Read more