HTTP状态码

package org.apache.http;

/**
  Constants enumerating the HTTP status codes.
  All status codes defined in RFC1945 (HTTP/1.0), RFC2616 (HTTP/1.1), and RFC2518 (WebDAV) are listed. 
 */
public interface HttpStatus {

    // --- 1xx Informational ---
    SC_CONTINUE = 100;	// {100 Continue} (RFC 2616)
    SC_SWITCHING_PROTOCOLS = 101;	// {101 Switching Protocols} (RFC 2616)*/
    SC_PROCESSING = 102;	// {102 Processing} (WebDAV - RFC 2518)

    // --- 2xx Success ---
    SC_OK = 200;	// {200 OK} (HTTP/1.0 - RFC 1945)
    SC_CREATED = 201;	// {201 Created} (HTTP/1.0 - RFC 1945)
    SC_ACCEPTED = 202;	// {202 Accepted} (HTTP/1.0 - RFC 1945)
    SC_NON_AUTHORITATIVE_INFORMATION = 203;	// {203 Non Authoritative Information} (RFC 2616)
    SC_NO_CONTENT = 204;	// {204 No Content} (HTTP/1.0 - RFC 1945)
    SC_RESET_CONTENT = 205;	// {205 Reset Content} (RFC 2616)
    SC_PARTIAL_CONTENT = 206;	// {206 Partial Content} (RFC 2616)
    SC_MULTI_STATUS = 207;	// {207 Multi-Status} (WebDAV - RFC 2518) or {207 Partial Update OK} (draft-ietf-http-v11-spec-rev-01?)

    // --- 3xx Redirection ---
    SC_MULTIPLE_CHOICES = 300;	// {300 Mutliple Choices} (RFC 2616)
    SC_MOVED_PERMANENTLY = 301;	// {301 Moved Permanently} (HTTP/1.0 - RFC 1945)
    SC_MOVED_TEMPORARILY = 302;	// {302 Moved Temporarily} (Sometimes {@code Found}) (HTTP/1.0 - RFC 1945)
    SC_SEE_OTHER = 303;	// {303 See Other} (RFC 2616)
    SC_NOT_MODIFIED = 304;	// {304 Not Modified} (HTTP/1.0 - RFC 1945)
    SC_USE_PROXY = 305;	// {305 Use Proxy} (RFC 2616)
    SC_TEMPORARY_REDIRECT = 307;	// {307 Temporary Redirect} (RFC 2616)

    // --- 4xx Client Error ---
	SC_BAD_REQUEST = 400;	// {400 Bad Request} (RFC 2616)
    SC_UNAUTHORIZED = 401;	// {401 Unauthorized} (HTTP/1.0 - RFC 1945)
    SC_PAYMENT_REQUIRED = 402;	// {402 Payment Required} (RFC 2616)
    SC_FORBIDDEN = 403;	// {403 Forbidden} (HTTP/1.0 - RFC 1945)
    SC_NOT_FOUND = 404;	// {404 Not Found} (HTTP/1.0 - RFC 1945)
    SC_METHOD_NOT_ALLOWED = 405;	// {405 Method Not Allowed} (RFC 2616)
    SC_NOT_ACCEPTABLE = 406;	// {406 Not Acceptable} (RFC 2616)
    SC_PROXY_AUTHENTICATION_REQUIRED = 407;	// {407 Proxy Authentication Required} (RFC 2616)
    SC_REQUEST_TIMEOUT = 408;	// {408 Request Timeout} (RFC 2616)
    SC_CONFLICT = 409;	// {409 Conflict} (RFC 2616)
    SC_GONE = 410;	// {410 Gone} (RFC 2616)
    SC_LENGTH_REQUIRED = 411;	// {411 Length Required} (RFC 2616)
    SC_PRECONDITION_FAILED = 412;	// {412 Precondition Failed} (RFC 2616)
    SC_REQUEST_TOO_LONG = 413;	// {413 Request Entity Too Large} (RFC 2616)
    SC_REQUEST_URI_TOO_LONG = 414;	// {414 Request-URI Too Long} (RFC 2616)
    SC_UNSUPPORTED_MEDIA_TYPE = 415;	// {415 Unsupported Media Type} (RFC 2616)
    SC_REQUESTED_RANGE_NOT_SATISFIABLE = 416;	// {416 Requested Range Not Satisfiable} (RFC 2616)
    SC_EXPECTATION_FAILED = 417;	// {417 Expectation Failed} (RFC 2616)
	// Static constant for a 418 error. {418 Unprocessable Entity} (WebDAV drafts?) or {@code 418 Reauthentication Required} (HTTP/1.1 drafts?)
    // SC_UNPROCESSABLE_ENTITY = 418;	// not used
    SC_INSUFFICIENT_SPACE_ON_RESOURCE = 419;	// Static constant for a 419 error. {419 Insufficient Space on Resource} (WebDAV - draft-ietf-webdav-protocol-05?) or {@code 419 Proxy Reauthentication Required} (HTTP/1.1 drafts?)
    SC_METHOD_FAILURE = 420;	//Static constant for a 420 error. {420 Method Failure} (WebDAV - draft-ietf-webdav-protocol-05?)
    SC_UNPROCESSABLE_ENTITY = 422;	// {422 Unprocessable Entity} (WebDAV - RFC 2518)
    SC_LOCKED = 423;	// {423 Locked} (WebDAV - RFC 2518)
    SC_FAILED_DEPENDENCY = 424;	// {424 Failed Dependency} (WebDAV - RFC 2518)

    // --- 5xx Server Error ---
    SC_INTERNAL_SERVER_ERROR = 500;	// {500 Server Error} (HTTP/1.0 - RFC 1945)
    SC_NOT_IMPLEMENTED = 501;	// {501 Not Implemented} (HTTP/1.0 - RFC 1945)
    SC_BAD_GATEWAY = 502;	// {502 Bad Gateway} (HTTP/1.0 - RFC 1945)
    SC_SERVICE_UNAVAILABLE = 503;	// {503 Service Unavailable} (HTTP/1.0 - RFC 1945)
    SC_GATEWAY_TIMEOUT = 504;	// {504 Gateway Timeout} (RFC 2616)
    SC_HTTP_VERSION_NOT_SUPPORTED = 505;	// {505 HTTP Version Not Supported} (RFC 2616)
    SC_INSUFFICIENT_STORAGE = 507;	// {507 Insufficient Storage} (WebDAV - RFC 2518)
}