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我已经在这个问题上工作了很长一段时间，但没有运气。我根据http://aws.amazon.com/articles/3002109349624271使用 Amazon S3 iOS 上传 SDK

症状： 可以创建bucket，不会上传图片。 S3PutObjectResponse *putObjectResponse = [self.s3 putObject:por];返回零。

这是我的代码： 在 viewDidLoad

self.s3 = [[AmazonS3Client alloc] initWithAccessKey:ACCESS_KEY_ID withSecretKey:SECRET_KEY];
self.s3.endpoint = [AmazonEndpoints s3Endpoint:US_WEST_2];

尝试使用和不使用端点；根据https://forums.aws.amazon.com/thread.jspa?messageID=427879蝧添加

在稍后在同一视图控制器中调用的上传函数中：

...
NSData *data = UIImageJPEGRepresentation(newImage, 0.9);
dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
    dispatch_async(queue, ^{
        // Upload image data.  Remember to set the content type.
        S3PutObjectRequest *por = [[S3PutObjectRequest alloc] initWithKey:PICTURE_NAME
                                                                 inBucket:PICTURE_BUCKET];
        por.contentType = @"image/jpeg";
        por.data = data;
        por.delegate = self;

        // Put the image data into the specified s3 bucket and object.
        S3PutObjectResponse *putObjectResponse = [self.s3 putObject:por];

        dispatch_queue_t queue = dispatch_get_main_queue();
        dispatch_async(queue, ^{
            if(putObjectResponse.error != nil)
            {
                NSLog(@"Error: %@", putObjectResponse.error);
                [self showAlertMessage:[putObjectResponse.error.userInfo objectForKey:@"message"] withTitle:@"Upload Error"];
            }
        });


        NSLog(@"image PUT to amazon");
        // Set the content type so that the browser will treat the URL as an image.
        S3ResponseHeaderOverrides *override = [[S3ResponseHeaderOverrides alloc] init];
        override.contentType = @"image/jpeg";

        // Request a pre-signed URL to picture that has been uploaded.
        S3GetPreSignedURLRequest *gpsur = [[S3GetPreSignedURLRequest alloc] init];
        gpsur.key                     = PICTURE_NAME;
        gpsur.bucket                  = PICTURE_BUCKET;
        gpsur.expires                 = [NSDate dateWithTimeIntervalSinceNow:(NSTimeInterval) 7200]; // Added an hour's worth of seconds to the current time.
        gpsur.responseHeaderOverrides = override;

        // Get the URL
        NSError *error;
        NSURL *url = [self.s3 getPreSignedURL:gpsur error:&error];

        NSString *imageURL = url.absoluteString;
        NSLog(@"%@",imageURL);
    });

永远不会抛出错误，如果我转到 URL，它只会显示“指定的密钥不存在”。

如果您有任何想法，请告诉我！这真让我抓狂！

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