org.apache.http.client.methods

Class HttpHead

java.lang.Object

org.apache.http.message.AbstractHttpMessage

org.apache.http.client.methods.AbstractExecutionAwareRequest

org.apache.http.client.methods.HttpRequestBase

org.apache.http.client.methods.HttpHead

All Implemented Interfaces:

Cloneable ， AbortableHttpRequest ， Configurable ， HttpExecutionAware ， HttpUriRequest ， HttpMessage ， HttpRequest

public class HttpHead
extends HttpRequestBase

HTTP HEAD方法。

HTTP HEAD方法在RFC2616的第9.4节中定义 ：

The HEAD method is identical to GET except that the server MUST NOT return a message-body in the response. The metainformation contained in the HTTP headers in response to a HEAD request SHOULD be identical to the information sent in response to a GET request. This method can be used for obtaining metainformation about the entity implied by the request without transferring the entity-body itself. This method is often used for testing hypertext links for validity, accessibility, and recent modification.

从以下版本开始：

4

Field Summary

Fields

Modifier and Type	Field and Description
static String	METHOD_NAME

Fields inherited from class org.apache.http.message.AbstractHttpMessage

headergroup, params

构造方法摘要

构造方法

Constructor and Description
HttpHead()
HttpHead(String uri)
HttpHead(URI uri)

方法摘要

Methods

Modifier and Type	Method and Description
String	getMethod() 返回该请求使用HTTP方法，如 GET ， PUT ， POST ，或其他。

Methods inherited from class org.apache.http.client.methods.HttpRequestBase

getConfig, getProtocolVersion, getRequestLine, getURI, releaseConnection, setConfig, setProtocolVersion, setURI, started, toString

Methods inherited from class org.apache.http.client.methods.AbstractExecutionAwareRequest

abort, clone, completed, isAborted, reset, setCancellable, setConnectionRequest, setReleaseTrigger

Methods inherited from class org.apache.http.message.AbstractHttpMessage

addHeader, addHeader, containsHeader, getAllHeaders, getFirstHeader, getHeaders, getLastHeader, getParams, headerIterator, headerIterator, removeHeader, removeHeaders, setHeader, setHeader, setHeaders, setParams

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.http.client.methods.HttpUriRequest

abort, isAborted

Methods inherited from interface org.apache.http.HttpMessage

addHeader, addHeader, containsHeader, getAllHeaders, getFirstHeader, getHeaders, getLastHeader, getParams, headerIterator, headerIterator, removeHeader, removeHeaders, setHeader, setHeader, setHeaders, setParams

字段详细信息

METHOD_NAME

public static final String METHOD_NAME

另请参见：

Constant Field Values

构造方法详细信息

HttpHead

public HttpHead()

HttpHead

public HttpHead(URI uri)

HttpHead

public HttpHead(String uri)

异常

IllegalArgumentException - 如果uri无效。

方法详细信息

getMethod

public String getMethod()

说明从界面： HttpUriRequest复制

返回该请求使用HTTP方法，如 GET ， PUT ， POST ，或其他。

Specified by:

getMethod在界面 HttpUriRequest

Specified by:

getMethod在 HttpRequestBase