org.apache.http.impl.client

Class DefaultHttpClient

java.lang.Object

org.apache.http.impl.client.AbstractHttpClient

org.apache.http.impl.client.DefaultHttpClient

All Implemented Interfaces:

HttpClient

Direct Known Subclasses:

ContentEncodingHttpClient

@ThreadSafe
public class DefaultHttpClient
extends AbstractHttpClient

Default implementation of HttpClient pre-configured for most common use scenarios.

This class creates the following chain of protocol interceptors per default:

• RequestDefaultHeaders
• RequestContent
• RequestTargetHost
• RequestClientConnControl
• RequestUserAgent
• RequestExpectContinue
• RequestAddCookies
• ResponseProcessCookies
• RequestTargetAuthentication
• RequestProxyAuthentication

This class sets up the following parameters if not explicitly set:

• Version: HttpVersion.HTTP_1_1
• ContentCharset: HTTP.DEFAULT_CONTENT_CHARSET
• NoTcpDelay: true
• SocketBufferSize: 8192
• UserAgent: Apache-HttpClient/release (java 1.5)

The following parameters can be used to customize the behavior of this class:

• CoreProtocolPNames.PROTOCOL_VERSION
• CoreProtocolPNames.STRICT_TRANSFER_ENCODING
• CoreProtocolPNames.HTTP_ELEMENT_CHARSET
• CoreProtocolPNames.USE_EXPECT_CONTINUE
• CoreProtocolPNames.WAIT_FOR_CONTINUE
• CoreProtocolPNames.USER_AGENT
• CoreConnectionPNames.TCP_NODELAY
• CoreConnectionPNames.SO_TIMEOUT
• CoreConnectionPNames.SO_LINGER
• CoreConnectionPNames.SO_REUSEADDR
• CoreConnectionPNames.SOCKET_BUFFER_SIZE
• CoreConnectionPNames.CONNECTION_TIMEOUT
• CoreConnectionPNames.MAX_LINE_LENGTH
• CoreConnectionPNames.MAX_HEADER_COUNT
• CoreConnectionPNames.STALE_CONNECTION_CHECK
• ConnRoutePNames.FORCED_ROUTE
• ConnRoutePNames.LOCAL_ADDRESS
• ConnRoutePNames.DEFAULT_PROXY
• CookieSpecPNames.DATE_PATTERNS
• CookieSpecPNames.SINGLE_COOKIE_HEADER
• AuthPNames.CREDENTIAL_CHARSET
• ClientPNames.COOKIE_POLICY
• ClientPNames.HANDLE_AUTHENTICATION
• ClientPNames.HANDLE_REDIRECTS
• ClientPNames.MAX_REDIRECTS
• ClientPNames.ALLOW_CIRCULAR_REDIRECTS
• ClientPNames.VIRTUAL_HOST
• ClientPNames.DEFAULT_HOST
• ClientPNames.DEFAULT_HEADERS
• ClientPNames.CONNECTION_MANAGER_FACTORY_CLASS_NAME

Since:

4.0

Constructor Summary

Constructors

Constructor and Description
DefaultHttpClient()
DefaultHttpClient(ClientConnectionManager conman)
DefaultHttpClient(ClientConnectionManager conman, org.apache.http.params.HttpParams params) Creates a new HTTP client from parameters and a connection manager.
DefaultHttpClient(org.apache.http.params.HttpParams params)

Method Summary

Methods

Modifier and Type	Method and Description
protected org.apache.http.params.HttpParams	createHttpParams() Creates the default set of HttpParams by invoking setDefaultHttpParams(HttpParams)
protected org.apache.http.protocol.BasicHttpProcessor	createHttpProcessor()
static void	setDefaultHttpParams(org.apache.http.params.HttpParams params) Saves the default set of HttpParams in the provided parameter.

Methods inherited from class org.apache.http.impl.client.AbstractHttpClient

addRequestInterceptor, addRequestInterceptor, addResponseInterceptor, addResponseInterceptor, clearRequestInterceptors, clearResponseInterceptors, createAuthSchemeRegistry, createClientConnectionManager, createClientRequestDirector, createClientRequestDirector, createConnectionKeepAliveStrategy, createConnectionReuseStrategy, createCookieSpecRegistry, createCookieStore, createCredentialsProvider, createHttpContext, createHttpRequestRetryHandler, createHttpRoutePlanner, createProxyAuthenticationHandler, createRedirectHandler, createRequestExecutor, createTargetAuthenticationHandler, createUserTokenHandler, determineParams, execute, execute, execute, execute, execute, execute, execute, execute, getAuthSchemes, getConnectionKeepAliveStrategy, getConnectionManager, getConnectionReuseStrategy, getCookieSpecs, getCookieStore, getCredentialsProvider, getHttpProcessor, getHttpRequestRetryHandler, getParams, getProxyAuthenticationHandler, getRedirectHandler, getRedirectStrategy, getRequestExecutor, getRequestInterceptor, getRequestInterceptorCount, getResponseInterceptor, getResponseInterceptorCount, getRoutePlanner, getTargetAuthenticationHandler, getUserTokenHandler, removeRequestInterceptorByClass, removeResponseInterceptorByClass, setAuthSchemes, setCookieSpecs, setCookieStore, setCredentialsProvider, setHttpRequestRetryHandler, setKeepAliveStrategy, setParams, setProxyAuthenticationHandler, setRedirectHandler, setRedirectStrategy, setReuseStrategy, setRoutePlanner, setTargetAuthenticationHandler, setUserTokenHandler

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DefaultHttpClient

public DefaultHttpClient(ClientConnectionManager conman,
                 org.apache.http.params.HttpParams params)

Creates a new HTTP client from parameters and a connection manager.

Parameters:

params - the parameters

conman - the connection manager

DefaultHttpClient

public DefaultHttpClient(ClientConnectionManager conman)

Since:

4.1

DefaultHttpClient

public DefaultHttpClient(org.apache.http.params.HttpParams params)

DefaultHttpClient

public DefaultHttpClient()

Method Detail

createHttpParams

protected org.apache.http.params.HttpParams createHttpParams()

Creates the default set of HttpParams by invoking setDefaultHttpParams(HttpParams)

Specified by:

createHttpParams in class AbstractHttpClient

Returns:

a new instance of SyncBasicHttpParams with the defaults applied to it.

setDefaultHttpParams

public static void setDefaultHttpParams(org.apache.http.params.HttpParams params)

Saves the default set of HttpParams in the provided parameter. These are:

• CoreProtocolPNames.PROTOCOL_VERSION: 1.1
• CoreProtocolPNames.HTTP_CONTENT_CHARSET: ISO-8859-1
• CoreConnectionPNames.TCP_NODELAY: true
• CoreConnectionPNames.SOCKET_BUFFER_SIZE: 8192
• CoreProtocolPNames.USER_AGENT: Apache-HttpClient/ (java 1.5)

createHttpProcessor

protected org.apache.http.protocol.BasicHttpProcessor createHttpProcessor()

Specified by:

createHttpProcessor in class AbstractHttpClient