See: Description
Interface | Description |
---|---|
Credentials |
Authentication credentials.
|
HttpConnectionManager |
An interface for classes that manage HttpConnections.
|
HttpMethod |
HttpMethod interface represents a request to be sent via a
HTTP connection and a corresponding response. |
HttpMethodRetryHandler |
A handler for determining if an HttpMethod should be retried after a
recoverable exception during execution.
|
MethodRetryHandler | Deprecated |
Class | Description |
---|---|
ChunkedInputStream |
Transparently coalesces chunks of a HTTP stream that uses
Transfer-Encoding chunked.
|
ChunkedOutputStream |
Implements HTTP chunking support.
|
ConnectMethod |
Establishes a tunneled HTTP connection via the CONNECT method.
|
ContentLengthInputStream |
Cuts the wrapped InputStream off after a specified number of bytes.
|
Cookie |
HTTP "magic-cookie" represents a piece of state information
that the HTTP agent and the target server can exchange to maintain
a session.
|
DefaultHttpMethodRetryHandler |
The default
HttpMethodRetryHandler used by HttpMethod s. |
DefaultMethodRetryHandler | Deprecated |
Header |
An HTTP header.
|
HeaderElement |
One element of an HTTP header's value.
|
HeaderGroup |
A class for combining a set of headers.
|
HostConfiguration |
Holds all of the variables needed to describe an HTTP connection to a host.
|
HttpClient |
An HTTP "user-agent", containing an
HTTP state and
one or more HTTP connections , to which
HTTP methods can be applied. |
HttpConnection |
An abstraction of an HTTP
InputStream and OutputStream
pair, together with the relevant attributes. |
HttpConstants | Deprecated
use EncodingUtil class
|
HttpHost |
Holds all of the variables needed to describe an HTTP connection to a host.
|
HttpMethodBase |
An abstract base implementation of HttpMethod.
|
HttpParser |
A utility class for parsing http header values according to
RFC-2616 Section 4 and 19.3.
|
HttpState |
A container for HTTP attributes that may persist from request
to request, such as
cookies and authentication
credentials . |
HttpStatus |
Constants enumerating the HTTP status codes.
|
HttpsURL |
The HTTPS URL.
|
HttpURL |
The HTTP URL.
|
HttpVersion |
HTTP version, as specified in RFC 2616.
|
MultiThreadedHttpConnectionManager |
Manages a set of HttpConnections for various HostConfigurations.
|
NameValuePair |
A simple class encapsulating a name/value pair.
|
NTCredentials |
Credentials for use with the NTLM authentication scheme which requires additional
information. |
ProxyClient |
A client that provides
sockets for communicating through HTTP proxies
via the HTTP CONNECT method. |
ProxyClient.ConnectResponse |
Contains the method used to execute the connect along with the created socket.
|
ProxyHost |
Holds all of the variables needed to describe an HTTP connection to a proxy.
|
SimpleHttpConnectionManager |
A connection manager that provides access to a single HttpConnection.
|
StatusLine |
Represents a Status-Line as returned from a HTTP server.
|
URI |
The interface for the URI(Uniform Resource Identifiers) version of RFC 2396.
|
URI.LocaleToCharsetMap |
A mapping to determine the (somewhat arbitrarily) preferred charset for a
given locale.
|
UsernamePasswordCredentials |
Username and password
Credentials . |
Exception | Description |
---|---|
CircularRedirectException |
Signals a circular redirect
|
ConnectionPoolTimeoutException |
A timeout while connecting waiting for an available connection
from an HttpConnectionManager.
|
ConnectTimeoutException |
A timeout while connecting to an HTTP server or waiting for an
available connection from an HttpConnectionManager.
|
HttpContentTooLargeException |
Signals that the response content was larger than anticipated.
|
HttpException |
Signals that an HTTP or HttpClient exception has occurred.
|
HttpRecoverableException | Deprecated
no longer used
|
InvalidRedirectLocationException |
Signals violation of HTTP specification caused by an invalid redirect
location
|
NoHttpResponseException |
Signals that the target server failed to respond with a valid HTTP response.
|
ProtocolException |
Signals that an HTTP protocol violation has occurred.
|
RedirectException |
Signals violation of HTTP specification caused by an invalid redirect
|
URI.DefaultCharsetChanged |
The charset-changed normal operation to represent to be required to
alert to user the fact the default charset is changed.
|
URIException |
The URI parsing and escape encoding exception.
|
Error | Description |
---|---|
HttpClientError |
Signals that an error has occurred.
|
The HttpClient component supports the client-side of RFC 1945 (HTTP/1.0) and RFC 2616 (HTTP/1.1), several related specifications (RFC 2109 (Cookies), RFC 2617 (HTTP Authentication), etc.), and provides a framework by which new request types (methods) or HTTP extensions can can be easily created or supported.
The basis for the abstraction is provided by three types:
HttpConnection
HttpMethod
HttpConnection
and contains the server's response.
HttpState
and several simple bean-style classes:
Cookie
Credentials
Header
HeaderElement
UsernamePasswordCredentials
HttpClient
provides a
simple "user-agent" implementation that will suffice for many
applications, but whose use is not required.
HttpClient also provides several utilities that may be useful when extending the framework:
HttpMethodBase
HttpStatus
ChunkedOutputStream
OutputStream
wrapper supporting the "chunked"
transfer encoding.
ChunkedInputStream
InputStream
wrapper supporting the "chunked"
transfer encoding.
URIUtil
-Dname=value
command line arguments to the application that uses HttpClient.
These properties can also be set programaticly by calling
System.getProperties().setProperty(name, value)
.
This is the list of properties that HttpClient recognizes:
Name
Type
Effect
httpclient.useragent
String
Sets the User-Agent string to be sent on every HTTP request.
httpclient.authentication.preemptive
boolean
Sends authorization credentials without requiring explicit requests
from the web server
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