ios - 在 iOS 上使用 AWS 将视频文件上传到现有存储桶时出现问题

Question

我正在使用亚马逊提供的示例制作一个应用程序，将视频上传到服务器 (S3)。该示例生成一个存储桶并在其中存储图像。就我而言，我使用之前生成的存储桶来存储视频，但如果我删除存储桶生成代码，视频上传就会停止。生成的桶不用于存储视频。此外，如果存储桶生成抛出异常(例如因为存储桶已经存在)，文件上传仍然有效。

我想在发送文件之前我还需要做另一项初始化工作。有什么想法吗？

这是我的代码:

- (void)viewDidLoad
{
    [super viewDidLoad];
    self.s3 = nil;
    aws_bucketName = @"bucketname";     // this is not the real name
    aws_key = @"****  HIDDEN ********";
    aws_secretKey = @"****  HIDDEN ********";

    if(self.s3 == nil)
    {
        // Initial the S3 Client.
        self.s3 = [[AmazonS3Client alloc] initWithAccessKey:aws_key withSecretKey:aws_secretKey];
        self.s3.endpoint = [AmazonEndpoints s3Endpoint:US_EAST_1];      // the bucket region is 'US Standard'

        //*******************************//
//        @try
//        {
//            // Create the picture bucket.
//            NSLog(@"Start with bucket generation");
//            S3CreateBucketRequest *createBucketRequest = [[S3CreateBucketRequest alloc] initWithName:aws_bucketName andRegion:[S3Region USStandard]];
//            
//            NSLog(@"Buquet requested, now response [bucket: %@]", aws_bucketName);
//            S3CreateBucketResponse *createBucketResponse = [self.s3 createBucket:createBucketRequest];
//            
//            NSLog(@"Bucket generated");
//            if(createBucketResponse.error != nil)
//            {
//                NSLog(@"Error: %@", createBucketResponse.error);
//            }
//        }
//        
//        @catch (NSException *exception)
//        {
//            NSLog(@"There was an exception when connecting to s3: %@",exception.description);
//        }
        //**********************************//
    }
}

- (IBAction)uploadFileButtonTouchUp:(id)sender
{
    NSLog(@"Upload started");
    // Get file path
    NSString* fileName = @"upTest.mp4";
    NSString *fileDirectory = [[NSBundle mainBundle] resourcePath];
    NSString *finalFilePath = [fileDirectory stringByAppendingFormat:@"/%@", fileName ];

    NSLog(@"The file to be uploaded is: %@", finalFilePath);
    // Call file upload
    NSURL *videoURL = [NSURL fileURLWithPath:finalFilePath];
    NSData *videoData = [NSData dataWithContentsOfURL:videoURL];
    [self uploadWithData2:videoData videoName:@"iosUploadTest.mp4" bucketName:aws_bucketName];
}


//*************************************************//
//*********     File upload              **********//
//*************************************************//
- (void)uploadWithData2:(NSData *)data videoName:(NSString *)videoName bucketName:(NSString*)bucketName
{
    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:videoName
                                                                  inBucket:bucketName];
        por.contentType = @"movie/mov";
        por.data        = data;

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

        dispatch_async(dispatch_get_main_queue(), ^{

            if(putObjectResponse.error != nil)
            {
                NSLog(@"Error: %@", putObjectResponse.error);
            }
            else
            {
                NSLog(@"Video uploaded succesfuly");
            }

            [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];
        });
    });
}

bucket生成代码有注释

Answer 1

尝试将内容类型设置为 video/mp4 以减轻 MIME 类型可能出现的不可预见的问题。

我也会建议 reading this ，它包含一些不同的上传方法，并像您一样处理线程。