网络请求错误码整理

NSError codes in the Cocoa error domain.

enum {

NSFileNoSuchFileError = 4,

NSFileLockingError = 255,

NSFileReadUnknownError = 256,

NSFileReadNoPermissionError = 257,

NSFileReadInvalidFileNameError = 258,

NSFileReadCorruptFileError = 259,

NSFileReadNoSuchFileError = 260,

NSFileReadInapplicableStringEncodingError = 261,

NSFileReadUnsupportedSchemeError = 262,

NSFileReadTooLargeError = 263,

NSFileReadUnknownStringEncodingError = 264,

NSFileWriteUnknownError = 512,

NSFileWriteNoPermissionError = 513,

NSFileWriteInvalidFileNameError = 514,

NSFileWriteInapplicableStringEncodingError = 517,

NSFileWriteUnsupportedSchemeError = 518,

NSFileWriteOutOfSpaceError = 640,

NSFileWriteVolumeReadOnlyError = 642m

NSKeyValueValidationError = 1024,

NSFormattingError = 2048,

NSUserCancelledError = 3072,

NSFileErrorMinimum = 0,

NSFileErrorMaximum = 1023,

NSValidationErrorMinimum = 1024,

NSValidationErrorMaximum = 2047,

NSFormattingErrorMinimum = 2048,

NSFormattingErrorMaximum = 2559,

NSPropertyListReadCorruptError = 3840,

NSPropertyListReadUnknownVersionError = 3841,

NSPropertyListReadStreamError = 3842,

NSPropertyListWriteStreamError = 3851,

NSPropertyListErrorMinimum = 3840,

NSPropertyListErrorMaximum = 4095

NSExecutableErrorMinimum = 3584,

NSExecutableNotLoadableError = 3584,

NSExecutableArchitectureMismatchError = 3585,

NSExecutableRuntimeMismatchError = 3586,

NSExecutableLoadError = 3587,

NSExecutableLinkError = 3588,

NSExecutableErrorMaximum = 3839,

}

URL Loading System Error Codes

These values are returned as the error code property of an NSError object with the domain “NSURLErrorDomain”.

typedef enum

{

NSURLErrorUnknown = -1,

NSURLErrorCancelled = -999,

NSURLErrorBadURL = -1000,

NSURLErrorTimedOut = -1001,

NSURLErrorUnsupportedURL = -1002,

NSURLErrorCannotFindHost = -1003,

NSURLErrorCannotConnectToHost = -1004,

NSURLErrorDataLengthExceedsMaximum = -1103,

NSURLErrorNetworkConnectionLost = -1005,

NSURLErrorDNSLookupFailed = -1006,

NSURLErrorHTTPTooManyRedirects = -1007,

NSURLErrorResourceUnavailable = -1008,

NSURLErrorNotConnectedToInternet = -1009,

NSURLErrorRedirectToNonExistentLocation = -1010,

NSURLErrorBadServerResponse = -1011,

NSURLErrorUserCancelledAuthentication = -1012,

NSURLErrorUserAuthenticationRequired = -1013,

NSURLErrorZeroByteResource = -1014,

NSURLErrorCannotDecodeRawData = -1015,

NSURLErrorCannotDecodeContentData = -1016,

NSURLErrorCannotParseResponse = -1017,

NSURLErrorFileDoesNotExist = -1100,

NSURLErrorFileIsDirectory = -1101,

NSURLErrorNoPermissionsToReadFile = -1102,

NSURLErrorSecureConnectionFailed = -1200,

NSURLErrorServerCertificateHasBadDate = -1201,

NSURLErrorServerCertificateUntrusted = -1202,

NSURLErrorServerCertificateHasUnknownRoot = -1203,

NSURLErrorServerCertificateNotYetValid = -1204,

NSURLErrorClientCertificateRejected = -1205,

NSURLErrorClientCertificateRequired = -1206,

NSURLErrorCannotLoadFromNetwork = -2000,

NSURLErrorCannotCreateFile = -3000,

NSURLErrorCannotOpenFile = -3001,

NSURLErrorCannotCloseFile = -3002,

NSURLErrorCannotWriteToFile = -3003,

NSURLErrorCannotRemoveFile = -3004,

NSURLErrorCannotMoveFile = -3005,

NSURLErrorDownloadDecodingFailedMidStream = -3006,

NSURLErrorDownloadDecodingFailedToComplete = -3007

}

有关于网络请求失败的解释：

case -1://NSURLErrorUnknown

errorMesg = @"无效的URL地址";

break;

case -999://NSURLErrorCancelled

errorMesg = @"无效的URL地址";

break;

case -1000://NSURLErrorBadURL

errorMesg = @"无效的URL地址";

break;

case -1001://NSURLErrorTimedOut

errorMesg = @"网络不给力，请稍后再试";

break;

case -1002://NSURLErrorUnsupportedURL

errorMesg = @"不支持的URL地址";

break;

case -1003://NSURLErrorCannotFindHost

errorMesg = @"找不到服务器";

break;

case -1004://NSURLErrorCannotConnectToHost

errorMesg = @"连接不上服务器";

break;

case -1103://NSURLErrorDataLengthExceedsMaximum

errorMesg = @"请求数据长度超出最大限度";

break;

case -1005://NSURLErrorNetworkConnectionLost

errorMesg = @"网络连接异常";

break;

case -1006://NSURLErrorDNSLookupFailed

errorMesg = @"DNS查询失败";

break;

case -1007://NSURLErrorHTTPTooManyRedirects

errorMesg = @"HTTP请求重定向";

break;

case -1008://NSURLErrorResourceUnavailable

errorMesg = @"资源不可用";

break;

case -1009://NSURLErrorNotConnectedToInternet

errorMesg = @"无网络连接";

break;

case -1010://NSURLErrorRedirectToNonExistentLocation

errorMesg = @"重定向到不存在的位置";

break;

case -1011://NSURLErrorBadServerResponse

errorMesg = @"服务器响应异常";

break;

case -1012://NSURLErrorUserCancelledAuthentication

errorMesg = @"用户取消授权";

break;

case -1013://NSURLErrorUserAuthenticationRequired

errorMesg = @"需要用户授权";

break;

case -1014://NSURLErrorZeroByteResource

errorMesg = @"零字节资源";

break;

case -1015://NSURLErrorCannotDecodeRawData

errorMesg = @"无法解码原始数据";

break;

case -1016://NSURLErrorCannotDecodeContentData

errorMesg = @"无法解码内容数据";

break;

case -1017://NSURLErrorCannotParseResponse

errorMesg = @"无法解析响应";

break;

case -1018://NSURLErrorInternationalRoamingOff

errorMesg = @"国际漫游关闭";

break;

case -1019://NSURLErrorCallIsActive

errorMesg = @"被叫激活";

break;

case -1020://NSURLErrorDataNotAllowed

errorMesg = @"数据不被允许";

break;

case -1021://NSURLErrorRequestBodyStreamExhausted

errorMesg = @"请求体";

break;

case -1100://NSURLErrorFileDoesNotExist

errorMesg = @"文件不存在";

break;

case -1101://NSURLErrorFileIsDirectory

errorMesg = @"文件是个目录";

break;

case -1102://NSURLErrorNoPermissionsToReadFile

errorMesg = @"无读取文件权限";

break;

case -1200://NSURLErrorSecureConnectionFailed

errorMesg = @"安全连接失败";

break;

case -1201://NSURLErrorServerCertificateHasBadDate

errorMesg = @"服务器证书失效";

break;

case -1202://NSURLErrorServerCertificateUntrusted

errorMesg = @"不被信任的服务器证书";

break;

case -1203://NSURLErrorServerCertificateHasUnknownRoot

errorMesg = @"未知Root的服务器证书";

break;

case -1204://NSURLErrorServerCertificateNotYetValid

errorMesg = @"服务器证书未生效";

break;

case -1205://NSURLErrorClientCertificateRejected

errorMesg = @"客户端证书被拒";

break;

case -1206://NSURLErrorClientCertificateRequired

errorMesg = @"需要客户端证书";

break;

case -2000://NSURLErrorCannotLoadFromNetwork

errorMesg = @"无法从网络获取";

break;

case -3000://NSURLErrorCannotCreateFile

errorMesg = @"无法创建文件";

break;

case -3001://  NSURLErrorCannotOpenFile

errorMesg = @"无法打开文件";

break;

case -3002://NSURLErrorCannotCloseFile

errorMesg = @"无法关闭文件";

break;

case -3003://NSURLErrorCannotWriteToFile

errorMesg = @"无法写入文件";

break;

case -3004://NSURLErrorCannotRemoveFile

errorMesg = @"无法删除文件";

break;

case -3005://NSURLErrorCannotMoveFile

errorMesg = @"无法移动文件";

break;

case -3006://NSURLErrorDownloadDecodingFailedMidStream

errorMesg = @"下载解码数据失败";

break;

case -3007://NSURLErrorDownloadDecodingFailedToComplete

errorMesg = @"下载解码数据失败";

break;