将图像上传到 S3 无法完成上传

Question

我正在将图像上传到 S3，但无法完成文件传输。以下是该应用程序的运行方式。

发起uploadToS3()
文件开始传输并向服务器发送字节。
发送大约 600,000 字节后，上传停止。
20-40 秒后，应用继续以 0% 的速度上传。就好像文件传输从一开始就没有开始过一样。
在此期间，记录器中没有出现任何错误。

在我的视图控制器中，我有以下上传文件的方法。

func uploadToS3(){

    // get the image from a UIImageView that is displaying the selected Image
    var img: UIImage = imageView.image!

    // create a local image that we can use to upload to s3
    var path: NSString = NSTemporaryDirectory().stringByAppendingPathComponent("image.png")
    var imageData: NSData = UIImagePNGRepresentation(img)
    imageData.writeToFile(path as String, atomically: true)

    // once the image is saved we can use the path to create a local fileurl
    var url:NSURL = NSURL(fileURLWithPath: path as String)!

    // next we set up the S3 upload request manager
    let uploadRequest = AWSS3TransferManagerUploadRequest()
    // set the bucket
    uploadRequest?.bucket = "test-bucket"
    // I want this image to be public to anyone to view it so I'm setting it to Public Read
    uploadRequest?.ACL = AWSS3ObjectCannedACL.PublicRead
    // set the image's name that will be used on the s3 server. I am also creating a folder to place the image in
    uploadRequest?.key = "foldername/image.png"
    // set the content type
    uploadRequest?.contentType = "image/png"
    // and finally set the body to the local file path
    uploadRequest?.body = url;

    // we will track progress through an AWSNetworkingUploadProgressBlock
    uploadRequest?.uploadProgress = {[unowned self](bytesSent:Int64, totalBytesSent:Int64, totalBytesExpectedToSend:Int64) in

        dispatch_sync(dispatch_get_main_queue(), { () -> Void in
            println("total  bytes sent")
            println(totalBytesSent)

            println("total  bytes expected to send")
            println(totalBytesExpectedToSend)
        })
    }

    // now the upload request is set up we can creat the transfermanger, the credentials are already set up in the app delegate
    var transferManager:AWSS3TransferManager = AWSS3TransferManager.defaultS3TransferManager()
    // start the upload
    transferManager.upload(uploadRequest).continueWithExecutor(BFExecutor.mainThreadExecutor(), withBlock:{ [unowned self]
        task -> AnyObject in

        // once the uploadmanager finishes check if there were any errors
        if(task.error != nil){
            println("%@", task.error);
        }else{ // if there aren't any then the image is uploaded!
            // this is the url of the image we just uploaded
            println("https://s3.amazonaws.com/s3-demo-swift/foldername/image.png");
        }

        //self.removeLoadingView()
        println("all done");
        return ""
        })
}

对于任何想要重新创建此应用程序的人

添加到您的 Podfile：

pod 'AWSCore'
pod 'AWSS3'
pod 'AWSiOSSDKv2'
pod 'AWSCognitoSync'

然后添加一个桥头包含：

#import <AWSCore/AWSCore.h>
#import <AWSS3/AWSS3.h>

在我的 AppDelegate 我有：

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {        
    // Override point for customization after application launch.
    AWSCognitoCredentialsProvider.initialize()

    var credentialsProvider = AWSCognitoCredentialsProvider(
        regionType: AWSRegionType.USEast1,
        identityPoolId: "identity pool id"
    )

    var configuration = AWSServiceConfiguration(
        region: AWSRegionType.USEast1,
        credentialsProvider: credentialsProvider
    )

    AWSServiceManager.defaultServiceManager().defaultServiceConfiguration = configuration

    return true
}

最后，在包含uploadToS3()的视图控制器中，添加import AWSS3。

更新

这是记录错误的最后一部分。

}]
2015-05-09 19:24:24.540 CoolApp[4492:55681] AWSiOSSDKv2 [Verbose] AWSURLResponseSerialization.m line:278 | -[AWSXMLResponseSerializer responseObjectForResponse:originalRequest:currentRequest:data:error:] | Response body: [<?xml version="1.0" encoding="UTF-8"?>
<Error><Code>AccessDenied</Code><Message>Access Denied</Message><RequestId>A03D405FC272808A</RequestId><HostId>bhSw+xQkGrMVd9QWMKMG1qYezPJet8b5L2ZIoGXePoftuupMP3HdgbAgCpStiLefo5yA3m1OJvY=</HostId></Error>]
(%@, Error Domain=com.amazonaws.AWSS3ErrorDomain Code=1 "The operation couldn’t be completed. (com.amazonaws.AWSS3ErrorDomain error 1.)" UserInfo=0x7c17cdc0 {HostId=bhSw+xQkGrMVd9QWMKMG1qYezPJet8b5L2ZIoGXePoftuupMP3HdgbAgCpStiLefo5yA3m1OJvY=, Code=AccessDenied, Message=Access Denied, RequestId=A03D405FC272808A})
all done

我的问题是，如何解决这个问题并成功上传图片。

Answer 1

如错误消息所述，您的 Amazon Cognito 身份池的权限设置不正确。 Understanding Amazon Cognito Authentication blog series (Part 2, Part 3) and Amazon Cognito Developer Guide 是您了解和设置 Cognito Identity 的重要资源。

将图像上传到 S3 无法完成上传

Uploading Image to S3 fails to complete upload

image-uploading

amazon-s3

amazon-web-services

ios

swift

对于任何想要重新创建此应用程序的人

更新