Package org.apache.http.impl.client

Default HTTP client implementation.

See:
Description

Class Summary

AIMDBackoffManager	The AIMDBackoffManager applies an additive increase, multiplicative decrease (AIMD) to managing a dynamic limit to the number of connections allowed to a given host.
BasicAuthCache	Default implementation of AuthCache.
BasicCookieStoreHC4	Default implementation of CookieStore
BasicCredentialsProviderHC4	Default implementation of CredentialsProvider.
BasicResponseHandlerHC4	A ResponseHandler that returns the response body as a String for successful (2xx) responses.
CloseableHttpClient	Base implementation of HttpClient that also implements Closeable.
DefaultBackoffStrategy	This ConnectionBackoffStrategy backs off either for a raw network socket or connection timeout or if the server explicitly sends a 503 (Service Unavailable) response.
DefaultConnectionKeepAliveStrategyHC4	Default implementation of a strategy deciding duration that a connection can remain idle.
DefaultHttpRequestRetryHandlerHC4	The default HttpRequestRetryHandler used by request executors.
DefaultRedirectStrategy	Default implementation of RedirectStrategy.
DefaultServiceUnavailableRetryStrategy	Default implementation of the ServiceUnavailableRetryStrategy interface.
DefaultUserTokenHandlerHC4	Default implementation of UserTokenHandler.
EntityEnclosingRequestWrapperHC4	Deprecated. (4.3) do not use.
FutureRequestExecutionMetrics	Collection of different counters used to gather metrics for FutureRequestExecutionService.
FutureRequestExecutionService	HttpAsyncClientWithFuture wraps calls to execute with a HttpRequestFutureTask and schedules them using the provided executor service.
HttpClientBuilder	Builder for CloseableHttpClient instances.
HttpClients	Factory methods for CloseableHttpClient instances.
HttpRequestFutureTask<V>	FutureTask implementation that wraps a HttpAsyncClientCallable and exposes various task specific metrics.
LaxRedirectStrategy	Lax RedirectStrategy implementation that automatically redirects all HEAD, GET and POST requests.
NoopUserTokenHandler	Noop implementation of UserTokenHandler that always returns null.
NullBackoffStrategy	This is a ConnectionBackoffStrategy that never backs off, for compatibility with existing behavior.
ProxyAuthenticationStrategy	Default AuthenticationStrategy implementation for proxy host authentication.
ProxyClient	ProxyClient can be used to establish a tunnel via an HTTP proxy.
RedirectLocationsHC4	This class represents a collection of URIs used as redirect locations.
StandardHttpRequestRetryHandler	HttpRequestRetryHandler which assumes that all requested HTTP methods which should be idempotent according to RFC-2616 are in fact idempotent and can be retried.
SystemDefaultCredentialsProvider	Implementation of CredentialsProvider backed by standard JRE Authenticator.
TargetAuthenticationStrategy	Default AuthenticationStrategy implementation for proxy host authentication.

Package org.apache.http.impl.client Description

Default HTTP client implementation.

The usual execution flow can be demonstrated by the code snippet below:

 CloseableHttpClient httpclient = HttpClients.createDefault();
 try {
      HttpGetHC4 httpGet = new HttpGetHC4("http://targethost/homepage");
      CloseableHttpResponse response = httpclient.execute(httpGet);
      try {
          System.out.println(response.getStatusLine());
          HttpEntity entity = response.getEntity();
          // do something useful with the response body
          // and ensure it is fully consumed
          EntityUtilsHC4.consume(entity);
      } finally {
          response.close();
      }
 } finally {
      httpclient.close();
 }