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
`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