org.apache.http

## Class HttpHeaders

- java.lang.Object
- - org.apache.http.HttpHeaders

-     public final class HttpHeaders
      extends Object

  Constants enumerating the HTTP headers. All headers defined in RFC1945 (HTTP/1.0), RFC2616 (HTTP/1.1), and RFC2518 (WebDAV) are listed.
  Since:
    4.1

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static String` | `ACCEPT` RFC 2616 (HTTP/1.1) Section 14.1
    `static String` | `ACCEPT_CHARSET` RFC 2616 (HTTP/1.1) Section 14.2
    `static String` | `ACCEPT_ENCODING` RFC 2616 (HTTP/1.1) Section 14.3
    `static String` | `ACCEPT_LANGUAGE` RFC 2616 (HTTP/1.1) Section 14.4
    `static String` | `ACCEPT_RANGES` RFC 2616 (HTTP/1.1) Section 14.5
    `static String` | `AGE` RFC 2616 (HTTP/1.1) Section 14.6
    `static String` | `ALLOW` RFC 1945 (HTTP/1.0) Section 10.1, RFC 2616 (HTTP/1.1) Section 14.7
    `static String` | `AUTHORIZATION` RFC 1945 (HTTP/1.0) Section 10.2, RFC 2616 (HTTP/1.1) Section 14.8
    `static String` | `CACHE_CONTROL` RFC 2616 (HTTP/1.1) Section 14.9
    `static String` | `CONNECTION` RFC 2616 (HTTP/1.1) Section 14.10
    `static String` | `CONTENT_ENCODING` RFC 1945 (HTTP/1.0) Section 10.3, RFC 2616 (HTTP/1.1) Section 14.11
    `static String` | `CONTENT_LANGUAGE` RFC 2616 (HTTP/1.1) Section 14.12
    `static String` | `CONTENT_LENGTH` RFC 1945 (HTTP/1.0) Section 10.4, RFC 2616 (HTTP/1.1) Section 14.13
    `static String` | `CONTENT_LOCATION` RFC 2616 (HTTP/1.1) Section 14.14
    `static String` | `CONTENT_MD5` RFC 2616 (HTTP/1.1) Section 14.15
    `static String` | `CONTENT_RANGE` RFC 2616 (HTTP/1.1) Section 14.16
    `static String` | `CONTENT_TYPE` RFC 1945 (HTTP/1.0) Section 10.5, RFC 2616 (HTTP/1.1) Section 14.17
    `static String` | `DATE` RFC 1945 (HTTP/1.0) Section 10.6, RFC 2616 (HTTP/1.1) Section 14.18
    `static String` | `DAV` RFC 2518 (WevDAV) Section 9.1
    `static String` | `DEPTH` RFC 2518 (WevDAV) Section 9.2
    `static String` | `DESTINATION` RFC 2518 (WevDAV) Section 9.3
    `static String` | `ETAG` RFC 2616 (HTTP/1.1) Section 14.19
    `static String` | `EXPECT` RFC 2616 (HTTP/1.1) Section 14.20
    `static String` | `EXPIRES` RFC 1945 (HTTP/1.0) Section 10.7, RFC 2616 (HTTP/1.1) Section 14.21
    `static String` | `FROM` RFC 1945 (HTTP/1.0) Section 10.8, RFC 2616 (HTTP/1.1) Section 14.22
    `static String` | `HOST` RFC 2616 (HTTP/1.1) Section 14.23
    `static String` | `IF` RFC 2518 (WevDAV) Section 9.4
    `static String` | `IF_MATCH` RFC 2616 (HTTP/1.1) Section 14.24
    `static String` | `IF_MODIFIED_SINCE` RFC 1945 (HTTP/1.0) Section 10.9, RFC 2616 (HTTP/1.1) Section 14.25
    `static String` | `IF_NONE_MATCH` RFC 2616 (HTTP/1.1) Section 14.26
    `static String` | `IF_RANGE` RFC 2616 (HTTP/1.1) Section 14.27
    `static String` | `IF_UNMODIFIED_SINCE` RFC 2616 (HTTP/1.1) Section 14.28
    `static String` | `LAST_MODIFIED` RFC 1945 (HTTP/1.0) Section 10.10, RFC 2616 (HTTP/1.1) Section 14.29
    `static String` | `LOCATION` RFC 1945 (HTTP/1.0) Section 10.11, RFC 2616 (HTTP/1.1) Section 14.30
    `static String` | `LOCK_TOKEN` RFC 2518 (WevDAV) Section 9.5
    `static String` | `MAX_FORWARDS` RFC 2616 (HTTP/1.1) Section 14.31
    `static String` | `OVERWRITE` RFC 2518 (WevDAV) Section 9.6
    `static String` | `PRAGMA` RFC 1945 (HTTP/1.0) Section 10.12, RFC 2616 (HTTP/1.1) Section 14.32
    `static String` | `PROXY_AUTHENTICATE` RFC 2616 (HTTP/1.1) Section 14.33
    `static String` | `PROXY_AUTHORIZATION` RFC 2616 (HTTP/1.1) Section 14.34
    `static String` | `RANGE` RFC 2616 (HTTP/1.1) Section 14.35
    `static String` | `REFERER` RFC 1945 (HTTP/1.0) Section 10.13, RFC 2616 (HTTP/1.1) Section 14.36
    `static String` | `RETRY_AFTER` RFC 2616 (HTTP/1.1) Section 14.37
    `static String` | `SERVER` RFC 1945 (HTTP/1.0) Section 10.14, RFC 2616 (HTTP/1.1) Section 14.38
    `static String` | `STATUS_URI` RFC 2518 (WevDAV) Section 9.7
    `static String` | `TE` RFC 2616 (HTTP/1.1) Section 14.39
    `static String` | `TIMEOUT` RFC 2518 (WevDAV) Section 9.8
    `static String` | `TRAILER` RFC 2616 (HTTP/1.1) Section 14.40
    `static String` | `TRANSFER_ENCODING` RFC 2616 (HTTP/1.1) Section 14.41
    `static String` | `UPGRADE` RFC 2616 (HTTP/1.1) Section 14.42
    `static String` | `USER_AGENT` RFC 1945 (HTTP/1.0) Section 10.15, RFC 2616 (HTTP/1.1) Section 14.43
    `static String` | `VARY` RFC 2616 (HTTP/1.1) Section 14.44
    `static String` | `VIA` RFC 2616 (HTTP/1.1) Section 14.45
    `static String` | `WARNING` RFC 2616 (HTTP/1.1) Section 14.46
    `static String` | `WWW_AUTHENTICATE` RFC 1945 (HTTP/1.0) Section 10.16, RFC 2616 (HTTP/1.1) Section 14.47

  - ### Method Summary

    - ### Methods inherited from class java.lang.Object

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

- - ### Field Detail

    - #### ACCEPT

          public static final String ACCEPT

      RFC 2616 (HTTP/1.1) Section 14.1
      See Also:
        Constant Field Values

    - #### ACCEPT_CHARSET

          public static final String ACCEPT_CHARSET

      RFC 2616 (HTTP/1.1) Section 14.2
      See Also:
        Constant Field Values

    - #### ACCEPT_ENCODING

          public static final String ACCEPT_ENCODING

      RFC 2616 (HTTP/1.1) Section 14.3
      See Also:
        Constant Field Values

    - #### ACCEPT_LANGUAGE

          public static final String ACCEPT_LANGUAGE

      RFC 2616 (HTTP/1.1) Section 14.4
      See Also:
        Constant Field Values

    - #### ACCEPT_RANGES

          public static final String ACCEPT_RANGES

      RFC 2616 (HTTP/1.1) Section 14.5
      See Also:
        Constant Field Values

    - #### AGE

          public static final String AGE

      RFC 2616 (HTTP/1.1) Section 14.6
      See Also:
        Constant Field Values

    - #### ALLOW

          public static final String ALLOW

      RFC 1945 (HTTP/1.0) Section 10.1, RFC 2616 (HTTP/1.1) Section 14.7
      See Also:
        Constant Field Values

    - #### AUTHORIZATION

          public static final String AUTHORIZATION

      RFC 1945 (HTTP/1.0) Section 10.2, RFC 2616 (HTTP/1.1) Section 14.8
      See Also:
        Constant Field Values

    - #### CACHE_CONTROL

          public static final String CACHE_CONTROL

      RFC 2616 (HTTP/1.1) Section 14.9
      See Also:
        Constant Field Values

    - #### CONNECTION

          public static final String CONNECTION

      RFC 2616 (HTTP/1.1) Section 14.10
      See Also:
        Constant Field Values

    - #### CONTENT_ENCODING

          public static final String CONTENT_ENCODING

      RFC 1945 (HTTP/1.0) Section 10.3, RFC 2616 (HTTP/1.1) Section 14.11
      See Also:
        Constant Field Values

    - #### CONTENT_LANGUAGE

          public static final String CONTENT_LANGUAGE

      RFC 2616 (HTTP/1.1) Section 14.12
      See Also:
        Constant Field Values

    - #### CONTENT_LENGTH

          public static final String CONTENT_LENGTH

      RFC 1945 (HTTP/1.0) Section 10.4, RFC 2616 (HTTP/1.1) Section 14.13
      See Also:
        Constant Field Values

    - #### CONTENT_LOCATION

          public static final String CONTENT_LOCATION

      RFC 2616 (HTTP/1.1) Section 14.14
      See Also:
        Constant Field Values

    - #### CONTENT_MD5

          public static final String CONTENT_MD5

      RFC 2616 (HTTP/1.1) Section 14.15
      See Also:
        Constant Field Values

    - #### CONTENT_RANGE

          public static final String CONTENT_RANGE

      RFC 2616 (HTTP/1.1) Section 14.16
      See Also:
        Constant Field Values

    - #### CONTENT_TYPE

          public static final String CONTENT_TYPE

      RFC 1945 (HTTP/1.0) Section 10.5, RFC 2616 (HTTP/1.1) Section 14.17
      See Also:
        Constant Field Values

    - #### DATE

          public static final String DATE

      RFC 1945 (HTTP/1.0) Section 10.6, RFC 2616 (HTTP/1.1) Section 14.18
      See Also:
        Constant Field Values

    - #### DAV

          public static final String DAV

      RFC 2518 (WevDAV) Section 9.1
      See Also:
        Constant Field Values

    - #### DEPTH

          public static final String DEPTH

      RFC 2518 (WevDAV) Section 9.2
      See Also:
        Constant Field Values

    - #### DESTINATION

          public static final String DESTINATION

      RFC 2518 (WevDAV) Section 9.3
      See Also:
        Constant Field Values

    - #### ETAG

          public static final String ETAG

      RFC 2616 (HTTP/1.1) Section 14.19
      See Also:
        Constant Field Values

    - #### EXPECT

          public static final String EXPECT

      RFC 2616 (HTTP/1.1) Section 14.20
      See Also:
        Constant Field Values

    - #### EXPIRES

          public static final String EXPIRES

      RFC 1945 (HTTP/1.0) Section 10.7, RFC 2616 (HTTP/1.1) Section 14.21
      See Also:
        Constant Field Values

    - #### FROM

          public static final String FROM

      RFC 1945 (HTTP/1.0) Section 10.8, RFC 2616 (HTTP/1.1) Section 14.22
      See Also:
        Constant Field Values

    - #### HOST

          public static final String HOST

      RFC 2616 (HTTP/1.1) Section 14.23
      See Also:
        Constant Field Values

    - #### IF

          public static final String IF

      RFC 2518 (WevDAV) Section 9.4
      See Also:
        Constant Field Values

    - #### IF_MATCH

          public static final String IF_MATCH

      RFC 2616 (HTTP/1.1) Section 14.24
      See Also:
        Constant Field Values

    - #### IF_MODIFIED_SINCE

          public static final String IF_MODIFIED_SINCE

      RFC 1945 (HTTP/1.0) Section 10.9, RFC 2616 (HTTP/1.1) Section 14.25
      See Also:
        Constant Field Values

    - #### IF_NONE_MATCH

          public static final String IF_NONE_MATCH

      RFC 2616 (HTTP/1.1) Section 14.26
      See Also:
        Constant Field Values

    - #### IF_RANGE

          public static final String IF_RANGE

      RFC 2616 (HTTP/1.1) Section 14.27
      See Also:
        Constant Field Values

    - #### IF_UNMODIFIED_SINCE

          public static final String IF_UNMODIFIED_SINCE

      RFC 2616 (HTTP/1.1) Section 14.28
      See Also:
        Constant Field Values

    - #### LAST_MODIFIED

          public static final String LAST_MODIFIED

      RFC 1945 (HTTP/1.0) Section 10.10, RFC 2616 (HTTP/1.1) Section 14.29
      See Also:
        Constant Field Values

    - #### LOCATION

          public static final String LOCATION

      RFC 1945 (HTTP/1.0) Section 10.11, RFC 2616 (HTTP/1.1) Section 14.30
      See Also:
        Constant Field Values

    - #### LOCK_TOKEN

          public static final String LOCK_TOKEN

      RFC 2518 (WevDAV) Section 9.5
      See Also:
        Constant Field Values

    - #### MAX_FORWARDS

          public static final String MAX_FORWARDS

      RFC 2616 (HTTP/1.1) Section 14.31
      See Also:
        Constant Field Values

    - #### OVERWRITE

          public static final String OVERWRITE

      RFC 2518 (WevDAV) Section 9.6
      See Also:
        Constant Field Values

    - #### PRAGMA

          public static final String PRAGMA

      RFC 1945 (HTTP/1.0) Section 10.12, RFC 2616 (HTTP/1.1) Section 14.32
      See Also:
        Constant Field Values

    - #### PROXY_AUTHENTICATE

          public static final String PROXY_AUTHENTICATE

      RFC 2616 (HTTP/1.1) Section 14.33
      See Also:
        Constant Field Values

    - #### PROXY_AUTHORIZATION

          public static final String PROXY_AUTHORIZATION

      RFC 2616 (HTTP/1.1) Section 14.34
      See Also:
        Constant Field Values

    - #### RANGE

          public static final String RANGE

      RFC 2616 (HTTP/1.1) Section 14.35
      See Also:
        Constant Field Values

    - #### REFERER

          public static final String REFERER

      RFC 1945 (HTTP/1.0) Section 10.13, RFC 2616 (HTTP/1.1) Section 14.36
      See Also:
        Constant Field Values

    - #### RETRY_AFTER

          public static final String RETRY_AFTER

      RFC 2616 (HTTP/1.1) Section 14.37
      See Also:
        Constant Field Values

    - #### SERVER

          public static final String SERVER

      RFC 1945 (HTTP/1.0) Section 10.14, RFC 2616 (HTTP/1.1) Section 14.38
      See Also:
        Constant Field Values

    - #### STATUS_URI

          public static final String STATUS_URI

      RFC 2518 (WevDAV) Section 9.7
      See Also:
        Constant Field Values

    - #### TE

          public static final String TE

      RFC 2616 (HTTP/1.1) Section 14.39
      See Also:
        Constant Field Values

    - #### TIMEOUT

          public static final String TIMEOUT

      RFC 2518 (WevDAV) Section 9.8
      See Also:
        Constant Field Values

    - #### TRAILER

          public static final String TRAILER

      RFC 2616 (HTTP/1.1) Section 14.40
      See Also:
        Constant Field Values

    - #### TRANSFER_ENCODING

          public static final String TRANSFER_ENCODING

      RFC 2616 (HTTP/1.1) Section 14.41
      See Also:
        Constant Field Values

    - #### UPGRADE

          public static final String UPGRADE

      RFC 2616 (HTTP/1.1) Section 14.42
      See Also:
        Constant Field Values

    - #### USER_AGENT

          public static final String USER_AGENT

      RFC 1945 (HTTP/1.0) Section 10.15, RFC 2616 (HTTP/1.1) Section 14.43
      See Also:
        Constant Field Values

    - #### VARY

          public static final String VARY

      RFC 2616 (HTTP/1.1) Section 14.44
      See Also:
        Constant Field Values

    - #### VIA

          public static final String VIA

      RFC 2616 (HTTP/1.1) Section 14.45
      See Also:
        Constant Field Values

    - #### WARNING

          public static final String WARNING

      RFC 2616 (HTTP/1.1) Section 14.46
      See Also:
        Constant Field Values

    - #### WWW_AUTHENTICATE

          public static final String WWW_AUTHENTICATE

      RFC 1945 (HTTP/1.0) Section 10.16, RFC 2616 (HTTP/1.1) Section 14.47
      See Also:
        Constant Field Values

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