apache http 1.1 状态 一览

从事web开发离不开HTTP的status code。
下面看看rfc是怎么定义的。

rfc2616-Hypertext Transfer Protocol — HTTP/1.1
整个状态分布分为五个段,简单总结如下。
1** 提供辅助信息。
2** 成功。
3** 重定向。
4** 各种找不到、各种http协议错误。
5** 各种服务器错误。

10   Status Code Definitions ......................................57
   10.1  Informational 1xx ...........................................57
   10.1.1   100 Continue .............................................58
   10.1.2   101 Switching Protocols ..................................58
   10.2  Successful 2xx ..............................................58
   10.2.1   200 OK ...................................................58
   10.2.2   201 Created ..............................................59
   10.2.3   202 Accepted .............................................59
   10.2.4   203 Non-Authoritative Information ........................59
   10.2.5   204 No Content ...........................................60
   10.2.6   205 Reset Content ........................................60
   10.2.7   206 Partial Content ......................................60
   10.3  Redirection 3xx .............................................61
   10.3.1   300 Multiple Choices .....................................61
   10.3.2   301 Moved Permanently ....................................62
   10.3.3   302 Found ................................................62
   10.3.4   303 See Other ............................................63
   10.3.5   304 Not Modified .........................................63
   10.3.6   305 Use Proxy ............................................64
   10.3.7   306 (Unused) .............................................64
 10.3.8   307 Temporary Redirect ...................................65
   10.4  Client Error 4xx ............................................65
   10.4.1    400 Bad Request .........................................65
   10.4.2    401 Unauthorized ........................................66
   10.4.3    402 Payment Required ....................................66
   10.4.4    403 Forbidden ...........................................66
   10.4.5    404 Not Found ...........................................66
   10.4.6    405 Method Not Allowed ..................................66
   10.4.7    406 Not Acceptable ......................................67
   10.4.8    407 Proxy Authentication Required .......................67
   10.4.9    408 Request Timeout .....................................67
   10.4.10   409 Conflict ............................................67
   10.4.11   410 Gone ................................................68
   10.4.12   411 Length Required .....................................68
   10.4.13   412 Precondition Failed .................................68
   10.4.14   413 Request Entity Too Large ............................69
   10.4.15   414 Request-URI Too Long ................................69
   10.4.16   415 Unsupported Media Type ..............................69
   10.4.17   416 Requested Range Not Satisfiable .....................69
   10.4.18   417 Expectation Failed ..................................70
   10.5  Server Error 5xx ............................................70
   10.5.1   500 Internal Server Error ................................70
   10.5.2   501 Not Implemented ......................................70
   10.5.3   502 Bad Gateway ..........................................70
   10.5.4   503 Service Unavailable ..................................70
   10.5.5   504 Gateway Timeout ......................................71
   10.5.6   505 HTTP Version Not Supported ...........................71

下面是apache的定义。
 

#define HTTP_CONTINUE                      100
#define HTTP_SWITCHING_PROTOCOLS           101
#define HTTP_PROCESSING                    102
#define HTTP_OK                            200
#define HTTP_CREATED                       201
#define HTTP_ACCEPTED                      202
#define HTTP_NON_AUTHORITATIVE             203
#define HTTP_NO_CONTENT                    204
#define HTTP_RESET_CONTENT                 205
#define HTTP_PARTIAL_CONTENT               206
#define HTTP_MULTI_STATUS                  207
#define HTTP_MULTIPLE_CHOICES              300
#define HTTP_MOVED_PERMANENTLY             301
#define HTTP_MOVED_TEMPORARILY             302
#define HTTP_SEE_OTHER                     303
#define HTTP_NOT_MODIFIED                  304
#define HTTP_USE_PROXY                     305
#define HTTP_TEMPORARY_REDIRECT            307
#define HTTP_BAD_REQUEST                   400
#define HTTP_UNAUTHORIZED                  401
#define HTTP_PAYMENT_REQUIRED              402
#define HTTP_FORBIDDEN                     403
#define HTTP_NOT_FOUND                     404
#define HTTP_METHOD_NOT_ALLOWED            405
#define HTTP_NOT_ACCEPTABLE                406
#define HTTP_PROXY_AUTHENTICATION_REQUIRED 407
#define HTTP_REQUEST_TIME_OUT              408
#define HTTP_CONFLICT                      409
#define HTTP_GONE                          410
#define HTTP_LENGTH_REQUIRED               411
#define HTTP_PRECONDITION_FAILED           412
#define HTTP_REQUEST_ENTITY_TOO_LARGE      413
#define HTTP_REQUEST_URI_TOO_LARGE         414
#define HTTP_UNSUPPORTED_MEDIA_TYPE        415
#define HTTP_RANGE_NOT_SATISFIABLE         416
#define HTTP_EXPECTATION_FAILED            417
#define HTTP_UNPROCESSABLE_ENTITY          422
#define HTTP_LOCKED                        423
#define HTTP_FAILED_DEPENDENCY             424
#define HTTP_UPGRADE_REQUIRED              426
#define HTTP_INTERNAL_SERVER_ERROR         500
#define HTTP_NOT_IMPLEMENTED               501
#define HTTP_BAD_GATEWAY                   502
#define HTTP_SERVICE_UNAVAILABLE           503
#define HTTP_GATEWAY_TIME_OUT              504
#define HTTP_VERSION_NOT_SUPPORTED         505
#define HTTP_VARIANT_ALSO_VARIES           506
#define HTTP_INSUFFICIENT_STORAGE          507
#define HTTP_NOT_EXTENDED                  510

/** is the status code informational */
#define ap_is_HTTP_INFO(x)         (((x) >= 100)&&((x) < 200)) /** is the status code OK ?*/ #define ap_is_HTTP_SUCCESS(x)      (((x) >= 200)&&((x) < 300)) /** is the status code a redirect */ #define ap_is_HTTP_REDIRECT(x)     (((x) >= 300)&&((x) < 400)) /** is the status code a error (client or server) */ #define ap_is_HTTP_ERROR(x)        (((x) >= 400)&&((x) < 600)) /** is the status code a client error  */ #define ap_is_HTTP_CLIENT_ERROR(x) (((x) >= 400)&&((x) < 500)) /** is the status code a server error  */ #define ap_is_HTTP_SERVER_ERROR(x) (((x) >= 500)&&((x) < 600)) /** is the status code a (potentially) valid response code?  */ #define ap_is_HTTP_VALID_RESPONSE(x) (((x) >= 100)&&((x) < 600))

/** should the status code drop the connection */
#define ap_status_drops_connection(x) \
                                   (((x) == HTTP_BAD_REQUEST)           || \
                                    ((x) == HTTP_REQUEST_TIME_OUT)      || \
                                    ((x) == HTTP_LENGTH_REQUIRED)       || \
                                    ((x) == HTTP_REQUEST_ENTITY_TOO_LARGE) || \
                                    ((x) == HTTP_REQUEST_URI_TOO_LARGE) || \
                                    ((x) == HTTP_INTERNAL_SERVER_ERROR) || \
                                    ((x) == HTTP_SERVICE_UNAVAILABLE) || \
				    ((x) == HTTP_NOT_IMPLEMENTED))

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