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package org.apache.http.client.methods;

import java.net.URI;

HTTP HEAD method.

The HTTP HEAD method is defined in section 9.4 of RFC2616:

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.
Since:4.0
/** * HTTP HEAD method. * <p> * The HTTP HEAD method is defined in section 9.4 of * <a href="http://www.ietf.org/rfc/rfc2616.txt">RFC2616</a>: * </p> * <blockquote> * 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. * </blockquote> * * @since 4.0 */
public class HttpHead extends HttpRequestBase { public final static String METHOD_NAME = "HEAD"; public HttpHead() { super(); } public HttpHead(final URI uri) { super(); setURI(uri); }
Throws:
  • IllegalArgumentException – if the uri is invalid.
/** * @throws IllegalArgumentException if the uri is invalid. */
public HttpHead(final String uri) { super(); setURI(URI.create(uri)); } @Override public String getMethod() { return METHOD_NAME; } }