如何在AWS s3上傳圖片，上傳時出錯

我使用最新的亞馬遜SDK庫將圖片上傳到存儲桶。但得到的錯誤，這裏是我的代碼如何在AWS s3上傳圖片，上傳時出錯

應用程序代理代碼

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { 


    AWSCognitoCredentialsProvider *credentialsProvider = [[AWSCognitoCredentialsProvider alloc] initWithRegionType:AWSRegionAPSoutheast1 
                           identityPoolId:AWS_IDENTITY_POOL_ID1]; 
    AWSServiceConfiguration *configuration = [[AWSServiceConfiguration alloc] initWithRegion:AWSRegionAPSoutheast1 
                    credentialsProvider:credentialsProvider]; 
    AWSServiceManager.defaultServiceManager.defaultServiceConfiguration = configuration; 

    return YES; 
}

我的視圖控制器代碼是

AWSS3TransferManager *transferManager = [AWSS3TransferManager defaultS3TransferManager]; 
    NSString *downloadingFilePath = [NSTemporaryDirectory() stringByAppendingPathComponent:@"downloaded-myImage.jpg"]; 
    NSURL *downloadingFileURL = [NSURL fileURLWithPath:downloadingFilePath]; 
    imageView.image = [UIImage imageWithContentsOfFile:downloadingFilePath]; 

    AWSS3TransferManagerUploadRequest *uploadRequest = [AWSS3TransferManagerUploadRequest new]; 
    uploadRequest.bucket = @"myBucketName"; 
    uploadRequest.key = @"downloaded-myImage.jpg"; 
    uploadRequest.body = downloadingFileURL; 

    [[transferManager upload:uploadRequest] continueWithExecutor:[AWSExecutor mainThreadExecutor] 
                withBlock:^id(AWSTask *task) { 
                 if (task.error) { 
                  if ([task.error.domain isEqualToString:AWSS3TransferManagerErrorDomain]) { 
                   switch (task.error.code) { 
                    case AWSS3TransferManagerErrorCancelled: 
                    case AWSS3TransferManagerErrorPaused: 
                     break; 

                    default: 
                     NSLog(@"Error: %@", task.error); 
                     break; 
                   } 
                  } else { 
                   // Unknown error. 
                   NSLog(@"Error: %@", task.error); 
                  } 
                 } 

                 if (task.result) { 
                  AWSS3TransferManagerUploadOutput *uploadOutput = task.result; 
                  // The file uploaded successfully. 
                  NSLog(@"LOG %@", task.result); 
                 } 
                 return nil; 
                }]; 

    [transferManager upload:uploadRequest];

但是這樣

AWSiOSSDKv2 [Error] AWSCredentialsProvider.m line:528 | __40-[AWSCognitoCredentialsProvider refresh]_block_invoke352 | Unable to refresh. 
Error is [Error Domain=NSURLErrorDomain Code=-1003 "A server with the specified hostname could not be found." 
UserInfo={NSUnderlyingError=0x7ffd7300a070 {Error Domain=kCFErrorDomainCFNetwork Code=-1003 "(null)" 
UserInfo={_kCFStreamErrorCodeKey=8, _kCFStreamErrorDomainKey=12}}, NSErrorFailingURLStringKey=https://cognito-identity.ap-southeast-1.amazonaws.com/, 
NSErrorFailingURLKey=https://cognito-identity.ap-southeast-1.amazonaws.com/, _kCFStreamErrorDomainKey=12, _kCFStreamErrorCodeKey=8, 
NSLocalizedDescription=A server with the specified hostname could not be found.}]

來源

2016-04-18 Mitul Bhadeshiya

您是如何驗證身份的？你通過Cognito提供臨時訪問？ – Tom

@Tom我只是編輯我的代碼 –

亞馬遜Cognito身份認證目前僅適用於us-east-1，eu-west-1和ap-northeast-1。在實例化AWSCognitoCredentialsProvider時，您需要使用創建Cognit身份庫的區域。

您仍然可以將Cognito Identity獲得的憑據用於其他區域中的其他服務。

來源

2016-04-20 18:20:48

每次得到錯誤的支持Cognit Identity的端點是（取自：http://docs.aws.amazon.com/general/latest/gr/rande.html#cognito_identity_region）：

Region Name    Region   Endpoint          Protocol 
US East (N. Virginia) us-east-1  cognito-identity.us-east-1.amazonaws.com  HTTPS 
EU (Ireland)   eu-west-1  cognito-identity.eu-west-1.amazonaws.com  HTTPS 
Asia Pacific (Tokyo) ap-northeast-1 cognito-identity.ap-northeast-1.amazonaws.com HTTPS

看起來新加坡地區不支持Cognito Identity（ap-southeast-1）。嘗試上面列表中的其他區域。

來源

2016-04-18 15:37:51 ataylor

如何在AWS s3上傳圖片，上傳時出錯

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