HTTP 状态码

    Value            Description                   Reference
     100   Continue                        [RFC7231, Section 6.2.1]
     101   Switching Protocols             [RFC7231, Section 6.2.2]
     102   Processing                      [RFC2518]
   103-199 Unassigned
     200   OK                              [RFC7231, Section 6.3.1]
     201   Created                         [RFC7231, Section 6.3.2]
     202   Accepted                        [RFC7231, Section 6.3.3]
     203   Non-Authoritative Information   [RFC7231, Section 6.3.4]
     204   No Content                      [RFC7231, Section 6.3.5]
     205   Reset Content                   [RFC7231, Section 6.3.6]
     206   Partial Content                 [RFC7233, Section 4.1]
     207   Multi-Status                    [RFC4918]
     208   Already Reported                [RFC5842]
   209-225 Unassigned
     226   IM Used                         [RFC3229]
   227-299 Unassigned
     300   Multiple Choices                [RFC7231, Section 6.4.1]
     301   Moved Permanently               [RFC7231, Section 6.4.2]
     302   Found                           [RFC7231, Section 6.4.3]
     303   See Other                       [RFC7231, Section 6.4.4]
     304   Not Modified                    [RFC7232, Section 4.1]
     305   Use Proxy                       [RFC7231, Section 6.4.5]
     306   (Unused)                        [RFC7231, Section 6.4.6]
     307   Temporary Redirect              [RFC7231, Section 6.4.7]
     308   Permanent Redirect              [RFC7538]
   309-399 Unassigned
     400   Bad Request                     [RFC7231, Section 6.5.1]
     401   Unauthorized                    [RFC7235, Section 3.1]
     402   Payment Required                [RFC7231, Section 6.5.2]
     403   Forbidden                       [RFC7231, Section 6.5.3]
     404   Not Found                       [RFC7231, Section 6.5.4]
     405   Method Not Allowed              [RFC7231, Section 6.5.5]
     406   Not Acceptable                  [RFC7231, Section 6.5.6]
     407   Proxy Authentication Required   [RFC7235, Section 3.2]
     408   Request Timeout                 [RFC7231, Section 6.5.7]
     409   Conflict                        [RFC7231, Section 6.5.8]
     410   Gone                            [RFC7231, Section 6.5.9]
     411   Length Required                 [RFC7231, Section 6.5.10]
     412   Precondition Failed             [RFC7232, Section 4.2]
     413   Payload Too Large               [RFC7231, Section 6.5.11]
     414   URI Too Long                    [RFC7231, Section 6.5.12]
     415   Unsupported Media Type          [RFC7231, Section 6.5.13]
     416   Range Not Satisfiable           [RFC7233, Section 4.4]
     417   Expectation Failed              [RFC7231, Section 6.5.14]
   418-420 Unassigned
     421   Misdirected Request             [RFC7540, Section 9.1.2]
     422   Unprocessable Entity            [RFC4918]
     423   Locked                          [RFC4918]
     424   Failed Dependency               [RFC4918]
     425   Unassigned
     426   Upgrade Required                [RFC7231, Section 6.5.15]
     427   Unassigned
     428   Precondition Required           [RFC6585]
     429   Too Many Requests               [RFC6585]
     430   Unassigned
     431   Request Header Fields Too Large [RFC6585]
   432-499 Unassigned
     500   Internal Server Error           [RFC7231, Section 6.6.1]
     501   Not Implemented                 [RFC7231, Section 6.6.2]
     502   Bad Gateway                     [RFC7231, Section 6.6.3]
     503   Service Unavailable             [RFC7231, Section 6.6.4]
     504   Gateway Timeout                 [RFC7231, Section 6.6.5]
     505   HTTP Version Not Supported      [RFC7231, Section 6.6.6]
     506   Variant Also Negotiates         [RFC2295]
     507   Insufficient Storage            [RFC4918]
     508   Loop Detected                   [RFC5842]
     509   Unassigned
     510   Not Extended                    [RFC2774]
     511   Network Authentication Required [RFC6585]
   512-599 Unassigned