ios中网络请求error错误汇总

在网络请求的时候会遇到很多请求错误, AFN会返回error错误的代码 ,整理出来方便查询
:)
也可以参考维基维基百科 List of HTTP status codes

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Error Code	Description
1 </br> kCFHostErrorHostNotFound	“Indicates that the DNS lookup failed.”
2 </br> kCFHostErrorUnknown	“An unknown error occurred (a name server failure, for example). For additional information, query the kCFGetAddrInfoFailureKey to get the value returned from getaddrinfo; lookup in netdb.h”
100 </br> kCFSOCKSErrorUnknownClientVersion	“The SOCKS server rejected access because it does not support connections with the requested SOCKS version.Query kCFSOCKSStatusCodeKey to recover the status code returned by the server.”
101 </br> kCFSOCKSErrorUnsupportedServerVersion	“The version of SOCKS requested by the server is not supported. Query kCFSOCKSStatusCodeKey to recover the status code returned by the server. Query the kCFSOCKSVersionKey to find the version requested by the server.”

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SOCKS4 Code	Description
110 </br> kCFSOCKS4ErrorRequestFailed	“Request rejected or failed by the server.”
111 </br> kCFSOCKS4ErrorIdentdFailed	“Request rejected because SOCKS server cannot connect to identd on the client.”
112 </br> kCFSOCKS4ErrorIdConflict	“Request rejected because the client program and identd report different user-ids.”
113 </br> kCFSOCKS4ErrorUnknownStatusCode	“The status code returned by the server is unknown.”

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SOCKS5 Code	Description
120</br> kCFSOCKS5ErrorBadState	“The stream is not in a state that allows the requested operation.”
121</br> kCFSOCKS5ErrorBadResponseAddr	“The address type returned is not supported.”
122</br> kCFSOCKS5ErrorBadCredentials	“The SOCKS server refused the client connection because of bad login credentials.”
123</br> kCFSOCKS5ErrorUnsupportedNegotiationMethod	“The requested method is not supported. Query kCFSOCKSNegotiationMethodKey to find the method requested.”
124 </br> kCFSOCKS5ErrorNoAcceptableMethod	“The client and server could not find a mutually agreeable authentication method.”

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HTTP Code	Description
300 </br>kCFErrorHTTPAuthenticationTypeUnsupported	“The client and server could not agree on a supported authentication type.”
301 </br> kCFErrorHTTPBadCredentials	“The credentials provided for an authenticated connection were rejected by the server.”
302 </br> kCFErrorHTTPConnectionLost	“The connection to the server was dropped. This usually indicates a highly overloaded server.”
303 </br> kCFErrorHTTPParseFailure	“The HTTP server response could not be parsed.”
304 </br>kCFErrorHTTPRedirectionLoopDetected	“Too many HTTP redirects occurred before reaching a page that did not redirect the client to another page. This usually indicates a redirect loop.”
305 </br> kCFErrorHTTPBadURL	“The requested URL could not be retrieved.”
306 </br> kCFErrorHTTPProxyConnectionFailure	“A connection could not be established to the HTTP proxy.”
307 </br> kCFErrorHTTPBadProxyCredentials	“The authentication credentials provided for logging into the proxy were rejected.”
308 </br> kCFErrorPACFileError	“An error occurred with the proxy autoconfiguration file.”
309</br> kCFErrorPACFileAuth	“The authentication credentials provided by the proxy autoconfiguration file were rejected.”
310 </br> kCFErrorHTTPSProxyConnectionFailure	“A connection could not be established to the HTTPS proxy.”
311 </br> kCFStreamErrorHTTPSProxyFailureUnexpectedResponseToCONNECTMethod	“The HTTPS proxy returned an unexpected status code, such as a 3xx redirect.”

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CFURLConnection Code	Description
-998 </br> kCFURLErrorUnknown	“An unknown error occurred.”
-999 </br> kCFURLErrorCancelled </br>NSURLErrorCancelled	“The connection was cancelled.”
-1000</br>kCFURLErrorBadURL</br>NSURLErrorBadURL	“The connection failed due to a malformed URL.”
-1001</br>kCFURLErrorTimedOut</br>NSURLErrorTimedOut	“The connection timed out.”
-1002</br>kCFURLErrorUnsupportedURL</br>NSURLErrorUnsupportedURL	“The connection failed due to an unsupported URL scheme.”
-1003</br>kCFURLErrorCannotFindHost</br>NSURLErrorCannotFindHost	“The connection failed because the host could not be found.”
-1004</br>kCFURLErrorCannotConnectToHost</br>NSURLErrorCannotConnectToHost	“The connection failed because a connection cannot be made to the host.”
-1005</br>kCFURLErrorNetworkConnectionLost</br>NSURLErrorNetworkConnectionLost	“The connection failed because the network connection was lost.”
-1006</br>kCFURLErrorDNSLookupFailed</br>NSURLErrorDNSLookupFailed	“The connection failed because the DNS lookup failed.”
-1007</br>kCFURLErrorHTTPTooManyRedirects</br>NSURLErrorHTTPTooManyRedirects	“The HTTP connection failed due to too many redirects.”
-1008</br>kCFURLErrorResourceUnavailable</br>NSURLErrorResourceUnavailable	“The connection’s resource is unavailable.”
-1009</br>kCFURLErrorNotConnectedToInternet</br>NSURLErrorNotConnectedToInternet	“The connection failed because the device is not connected to the internet.”
-1010</br>kCFURLErrorRedirectToNonExistentLocation</br>NSURLErrorRedirectToNonExistentLocation	“The connection was redirected to a nonexistent location.”
-1011</br>kCFURLErrorBadServerResponse</br>NSURLErrorBadServerResponse	“The connection received an invalid server response.”
-1012</br>kCFURLErrorUserCancelledAuthentication</br>NSURLErrorUserCancelledAuthentication	“The connection failed because the user cancelled required authentication.”
-1013</br>kCFURLErrorUserAuthenticationRequired</br>NSURLErrorUserAuthenticationRequired	“The connection failed because authentication is required.”
-1014</br>kCFURLErrorZeroByteResource</br>NSURLErrorZeroByteResource	“The resource retrieved by the connection is zero bytes.”
-1015</br>kCFURLErrorCannotDecodeRawData</br>NSURLErrorCannotDecodeRawData	“The connection cannot decode data encoded with a known content encoding.”
1016</br>kCFURLErrorCannotDecodeContentData</br>NSURLErrorCannotDecodeContentData	“The connection cannot decode data encoded with an unknown content encoding.”
-1017</br>kCFURLErrorCannotParseResponse</br>NSURLErrorCannotParseResponse	“The connection cannot parse the server’s response.”
-1018</br> kCFURLErrorInternationalRoamingOff	“The connection failed because international roaming is disabled on the device.”
-1019</br> kCFURLErrorCallIsActive	“The connection failed because a call is active.”
-1020</br> kCFURLErrorDataNotAllowed	“The connection failed because data use is currently not allowed on the device.”
-1021</br> kCFURLErrorRequestBodyStreamExhausted	“The connection failed because its request’s body stream was exhausted.”

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File Code	Description
-1100</br>kCFURLErrorFileDoesNotExist</br>NSURLErrorFileDoesNotExist	“The file operation failed because the file does not exist.”
-1101</br>kCFURLErrorFileIsDirectory</br>NSURLErrorFileIsDirectory	“The file operation failed because the file is a directory.”
-1102</br>kCFURLErrorNoPermissionsToReadFile</br>NSURLErrorNoPermissionsToReadFile	“The file operation failed because it does not have permission to read the file.”
-1103</br>kCFURLErrorDataLengthExceedsMaximum</br>NSURLErrorDataLengthExceedsMaximum	“The file operation failed because the file is too large.”

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SSL Code	Description
-1200</br>kCFURLErrorSecureConnectionFailed</br>NSURLErrorSecureConnectionFailed	“The secure connection failed for an unknown reason.”
-1201</br>kCFURLErrorServerCertificateHasBadDate</br>NSURLErrorServerCertificateHasBadDate	“The secure connection failed because the server’s certificate has an invalid date.”
-1202</br>kCFURLErrorServerCertificateUntrusted</br>NSURLErrorServerCertificateUntrusted	“The secure connection failed because the server’s certificate is not trusted.”
-1203</br>kCFURLErrorServerCertificateHasUnknownRoot</br>NSURLErrorServerCertificateHasUnknownRoot	“The secure connection failed because the server’s certificate has an unknown root.”
-1204</br>kCFURLErrorServerCertificateNotYetValid</br>NSURLErrorServerCertificateNotYetValid	“The secure connection failed because the server’s certificate is not yet valid.”
-1205</br>kCFURLErrorClientCertificateRejected</br>NSURLErrorClientCertificateRejected	“The secure connection failed because the client’s certificate was rejected.”
-1206</br>kCFURLErrorClientCertificateRequired</br>NSURLErrorClientCertificateRequired	“The secure connection failed because the server requires a client certificate.”

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Download I/O Code	Description
-2000</br>kCFURLErrorCannotLoadFromNetwork</br>NSURLErrorCannotLoadFromNetwork	“The connection failed because it is being required to return a cached resource, but one is not available.”
-3000</br>kCFURLErrorCannotCreateFile</br>NSURLErrorCannotCreateFile	“The file cannot be created.”
-3001</br>kCFURLErrorCannotOpenFile</br>NSURLErrorCannotOpenFile	“The file cannot be opened.”
-3002</br>kCFURLErrorCannotCloseFile</br>NSURLErrorCannotCloseFile	“The file cannot be closed.”
-3003</br>kCFURLErrorCannotWriteToFile</br>NSURLErrorCannotWriteToFile	“The file cannot be written.”
-3004</br>kCFURLErrorCannotRemoveFile</br>NSURLErrorCannotRemoveFile	“The file cannot be removed.”
-3005</br>kCFURLErrorCannotMoveFile</br>NSURLErrorCannotMoveFile	“The file cannot be moved.”
-3006</br>kCFURLErrorDownloadDecodingFailedMidStream</br>NSURLErrorDownloadDecodingFailedMidStream	“The download failed because decoding of the downloaded data failed mid-stream.”
-3007</br>kCFURLErrorDownloadDecodingFailedToComplete</br>NSURLErrorDownloadDecodingFailedToComplete	“The download failed because decoding of the downloaded data failed to complete.”
3840	“JSON text did not start with array or object and option to allow fragments not set.”

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Cookie Code	Description
-4000</br>kCFHTTPCookieCannotParseCookieFile	“The cookie file cannot be parsed.”

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CFNetServices Code	Description
-72000L</br> kCFNetServiceErrorUnknown	“An unknown error occurred.”
72001L</br> kCFNetServiceErrorCollision	“An attempt was made to use a name that is already in use.”
-72002L</br> kCFNetServiceErrorNotFound	“Not used.”
72003L</br>kCFNetServiceErrorInProgress	“A new search could not be started because a search is already in progress.”
-72004L</br> kCFNetServiceErrorBadArgument	“A required argument was not provided or was not valid.”
-72005L</br> kCFNetServiceErrorCancel	“The search or service was cancelled.”
-72006L</br> kCFNetServiceErrorInvalid	“Invalid data was passed to a CFNetServices function.”
-72007L</br> kCFNetServiceErrorTimeout	“A search failed because it timed out.”
-73000L</br> kCFNetServiceErrorDNSServiceFailure	“An error from DNS discovery; look at kCFDNSServiceFailureKey to get the error number and interpret using dnssd.h”