com.ptteng.course.util.aliPayUtil.apacheCommonUtil.httpclient.methods

类 ExpectContinueMethod

java.lang.Object

com.ptteng.course.util.aliPayUtil.apacheCommonUtil.httpclient.HttpMethodBase

com.ptteng.course.util.aliPayUtil.apacheCommonUtil.httpclient.methods.ExpectContinueMethod

所有已实现的接口:

HttpMethod

直接已知子类:

EntityEnclosingMethod, MultipartPostMethod

public abstract class ExpectContinueMethod
extends HttpMethodBase

This abstract class serves as a foundation for all HTTP methods that support 'Expect: 100-continue' handshake.

The purpose of the 100 (Continue) status (refer to section 10.1.1 of the RFC 2616 for more details) is to allow a client that is sending a request message with a request body to determine if the origin server is willing to accept the request (based on the request headers) before the client sends the request body. In some cases, it might either be inappropriate or highly inefficient for the client to send the body if the server will reject the message without looking at the body.

'Expect: 100-continue' handshake should be used with caution, as it may cause problems with HTTP servers and proxies that do not support HTTP/1.1 protocol.

从以下版本开始:

2.0beta1

作者:

Oleg Kalnichevski

构造器概要

构造器

构造器和说明
ExpectContinueMethod() No-arg constructor.
ExpectContinueMethod(String uri) Constructor specifying a URI.

方法概要

限定符和类型	方法和说明
protected void	addRequestHeaders(HttpState state, HttpConnection conn) Sets the Expect header if it has not already been set, in addition to the "standard" set of headers.
boolean	getUseExpectHeader() 已过时。 Use HttpMethodParams
protected abstract boolean	hasRequestContent() Returns true if there is a request body to be sent.
void	setUseExpectHeader(boolean value) 已过时。 Use HttpMethodParams

从类继承的方法 com.ptteng.course.util.aliPayUtil.apacheCommonUtil.httpclient.HttpMethodBase

abort, addCookieRequestHeader, addHostRequestHeader, addProxyConnectionHeader, addRequestHeader, addRequestHeader, addResponseFooter, addUserAgentRequestHeader, checkNotUsed, checkUsed, execute, generateRequestLine, getAuthenticationRealm, getContentCharSet, getDoAuthentication, getEffectiveVersion, getFollowRedirects, getHostAuthState, getHostConfiguration, getMethodRetryHandler, getName, getParams, getPath, getProxyAuthenticationRealm, getProxyAuthState, getQueryString, getRecoverableExceptionCount, getRequestCharSet, getRequestHeader, getRequestHeaderGroup, getRequestHeaders, getRequestHeaders, getResponseBody, getResponseBodyAsStream, getResponseBodyAsString, getResponseCharSet, getResponseContentLength, getResponseFooter, getResponseFooters, getResponseHeader, getResponseHeaderGroup, getResponseHeaders, getResponseHeaders, getResponseStream, getResponseTrailerHeaderGroup, getStatusCode, getStatusLine, getStatusText, getURI, hasBeenUsed, isAborted, isConnectionCloseForced, isHttp11, isRequestSent, isStrictMode, processResponseBody, processResponseHeaders, processStatusLine, readResponse, readResponseBody, readResponseHeaders, readStatusLine, recycle, releaseConnection, removeRequestHeader, removeRequestHeader, responseBodyConsumed, setConnectionCloseForced, setDoAuthentication, setFollowRedirects, setHostConfiguration, setHttp11, setMethodRetryHandler, setParams, setPath, setQueryString, setQueryString, setRequestHeader, setRequestHeader, setResponseStream, setStrictMode, setURI, shouldCloseConnection, validate, writeRequest, writeRequestBody, writeRequestHeaders, writeRequestLine

从类继承的方法 java.lang.Object

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

构造器详细资料

ExpectContinueMethod

public ExpectContinueMethod()

No-arg constructor.

从以下版本开始:

2.0

ExpectContinueMethod

public ExpectContinueMethod(String uri)

Constructor specifying a URI.

参数:

uri - either an absolute or relative URI

从以下版本开始:

2.0

方法详细资料

getUseExpectHeader

public boolean getUseExpectHeader()

已过时。 Use HttpMethodParams

Returns true if the 'Expect: 100-Continue' handshake is activated. The purpose of the 'Expect: 100-Continue' handshake to allow a client that is sending a request message with a request body to determine if the origin server is willing to accept the request (based on the request headers) before the client sends the request body.

返回:

true if 'Expect: 100-Continue' handshake is to be used, false otherwise.

从以下版本开始:

2.0beta1

另请参阅:

HttpMethodBase.getParams(), HttpMethodParams, HttpMethodParams.USE_EXPECT_CONTINUE

setUseExpectHeader

public void setUseExpectHeader(boolean value)

已过时。 Use HttpMethodParams

Activates 'Expect: 100-Continue' handshake. The purpose of the 'Expect: 100-Continue' handshake to allow a client that is sending a request message with a request body to determine if the origin server is willing to accept the request (based on the request headers) before the client sends the request body.

The use of the 'Expect: 100-continue' handshake can result in noticable peformance improvement for entity enclosing requests (such as POST and PUT) that require the target server's authentication.

'Expect: 100-continue' handshake should be used with caution, as it may cause problems with HTTP servers and proxies that do not support HTTP/1.1 protocol.

参数:

value - boolean value

从以下版本开始:

2.0beta1

另请参阅:

HttpMethodBase.getParams(), HttpMethodParams, HttpMethodParams.USE_EXPECT_CONTINUE

hasRequestContent

protected abstract boolean hasRequestContent()

Returns true if there is a request body to be sent. 'Expect: 100-continue' handshake may not be used if request body is not present

返回:

boolean

从以下版本开始:

2.0beta1

addRequestHeaders

protected void addRequestHeaders(HttpState state,
                                 HttpConnection conn)
                          throws IOException,
                                 HttpException

Sets the Expect header if it has not already been set, in addition to the "standard" set of headers.

覆盖:

addRequestHeaders 在类中 HttpMethodBase

参数:

state - the state information associated with this method

conn - the connection used to execute this HTTP method

抛出:

IOException - if an I/O (transport) error occurs. Some transport exceptions can be recovered from.

HttpException - if a protocol exception occurs. Usually protocol exceptions cannot be recovered from.

另请参阅:

HttpMethodBase.writeRequestHeaders(com.ptteng.course.util.aliPayUtil.apacheCommonUtil.httpclient.HttpState, com.ptteng.course.util.aliPayUtil.apacheCommonUtil.httpclient.HttpConnection)