如何将视频作为多部分上传方法上传到amazons3。如果有人知道或有一些想法如何解决这个问题，请给我一些建议。
非常感谢您抽出时间！
首先使用URLSession创建AWS对象&用委托方法处理
- (void)initBackgroundURLSessionAndAWS:(NSString*)MediaId
{
VideoId= MediaId;
AWSStaticCredentialsProvider *credentialsProvider = [AWSStaticCredentialsProvider credentialsWithAccessKey:<Your Access Key> secretKey:<Your Secret Key>];
AWSServiceConfiguration *configuration = [AWSServiceConfiguration configurationWithRegion:AWSRegionUSEast1 credentialsProvider:credentialsProvider];
NSURLSessionConfiguration *URLconfiguration;
if ([[[UIDevice currentDevice] systemVersion] compare:@"8.0" options:NSNumericSearch] == NSOrderedAscending) {
// iOS7 or earlier
URLconfiguration = [NSURLSessionConfiguration backgroundSessionConfiguration:MediaId];
} else {
// iOS8 or later
URLconfiguration = [NSURLSessionConfiguration backgroundSessionConfigurationWithIdentifier:MediaId];
}
self.urlSession = [NSURLSession sessionWithConfiguration:URLconfiguration delegate:self delegateQueue:nil];
[AWSServiceManager defaultServiceManager].defaultServiceConfiguration = configuration;
self.awss3 = [[AWSS3 alloc] initWithConfiguration:configuration];
NSURL *movieURL = [NSURL URLWithString:[[NSUserDefaults standardUserDefaults] valueForKey:@"mediaURL"]];
NSString *path = [NSTemporaryDirectory() stringByAppendingPathComponent:@"Video.MOV"];
NSData *imageData = [NSData dataWithContentsOfURL:movieURL];
[imageData writeToFile:path atomically:YES];
NSURL *url = [[NSURL alloc] initFileURLWithPath:path];
AWSS3GetPreSignedURLRequest *getPreSignedURLRequest = [AWSS3GetPreSignedURLRequest new];
getPreSignedURLRequest.bucket = <Bucket ID>;
getPreSignedURLRequest.key = [NSString stringWithFormat:@"%@.MOV",MediaId];
getPreSignedURLRequest.HTTPMethod = AWSHTTPMethodPUT;
getPreSignedURLRequest.expires = [NSDate dateWithTimeIntervalSinceNow:3600];
//Important: must set contentType for PUT request
getPreSignedURLRequest.contentType = @"movie/mov";
[[[AWSS3PreSignedURLBuilder defaultS3PreSignedURLBuilder] getPreSignedURL:getPreSignedURLRequest] continueWithBlock:^id(BFTask *task) {
if (task.error)
{
NSLog(@"Error BFTask: %@", task.error);
[self showError];
}
else
{
// [SVProgressHUD dismiss];
NSURL *presignedURL = task.result;
NSLog(@"upload presignedURL is: n%@", presignedURL);
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:presignedURL];
request.cachePolicy = NSURLRequestReloadIgnoringLocalCacheData;
[request setHTTPMethod:@"PUT"];
[request setValue:@"movie/mov" forHTTPHeaderField:@"Content-Type"];
NSURLSessionUploadTask *uploadTask = [self.urlSession uploadTaskWithRequest:request fromFile:url];
[uploadTask resume];
}
return nil;
}];
}
- (void)URLSession:(NSURLSession *)session task:(NSURLSessionTask *)task didSendBodyData:(int64_t)bytesSent totalBytesSent:(int64_t)totalBytesSent totalBytesExpectedToSend:(int64_t)totalBytesExpectedToSend {
// Upload progress
NSLog(@"Progress : %f", (float) totalBytesSent / totalBytesExpectedToSend);
float progress = (float)( totalBytesSent / totalBytesExpectedToSend);
[SVProgressHUD showProgress:progress status:@"Uploading video..." maskType:SVProgressHUDMaskTypeBlack];
}
- (void)URLSession:(NSURLSession *)session task:(NSURLSessionTask *)task didCompleteWithError:(NSError *)error
{
if (error)
{
NSLog(@"S3 UploadTask: %@ completed with error: %@", task, [error localizedDescription]);
[SVProgressHUD showErrorWithStatus:@"Error in Uploding."];
}
else
{
NSLog(@"S3 UploadTask: %@ completed @", task);
[self PrepareVideoPfFile:VideoId];
AWSS3GetPreSignedURLRequest does not contain ACL property, so it has to be set after file was uploaded
AWSS3PutObjectAclRequest *aclRequest = [AWSS3PutObjectAclRequest new];
aclRequest.bucket = @"your_bucket";
aclRequest.key = @"yout_key";
aclRequest.ACL = <key>;
[[self.awss3 putObjectAcl:aclRequest] continueWithBlock:^id(BFTask *bftask) {
dispatch_async(dispatch_get_main_queue(), ^{
if (bftask.error)
{
NSLog(@"Error putObjectAcl: %@", [bftask.error localizedDescription]);
}
else
{
NSLog(@"ACL for an uploaded file was changed successfully!");
}
});
return nil;
}];
}
}
AWS iOS SDK将为您完成最困难的部分。参考http://docs.aws.amazon.com/mobile/sdkforios/developerguide/
使用URL会话将视频上传到AWS服务器
- (void)initBackgroundURLSessionAndAWS:(NSString*)MediaId
{
VideoId= MediaId;
AWSStaticCredentialsProvider *credentialsProvider = [AWSStaticCredentialsProvider credentialsWithAccessKey:<Your Access Key> secretKey:<Your Secret Key>];
AWSServiceConfiguration *configuration = [AWSServiceConfiguration configurationWithRegion:AWSRegionUSEast1 credentialsProvider:credentialsProvider];
NSURLSessionConfiguration *URLconfiguration;
if ([[[UIDevice currentDevice] systemVersion] compare:@"8.0" options:NSNumericSearch] == NSOrderedAscending) {
// iOS7 or earlier
URLconfiguration = [NSURLSessionConfiguration backgroundSessionConfiguration:MediaId];
} else {
// iOS8 or later
URLconfiguration = [NSURLSessionConfiguration backgroundSessionConfigurationWithIdentifier:MediaId];
}
self.urlSession = [NSURLSession sessionWithConfiguration:URLconfiguration delegate:self delegateQueue:nil];
[AWSServiceManager defaultServiceManager].defaultServiceConfiguration = configuration;
self.awss3 = [[AWSS3 alloc] initWithConfiguration:configuration];
NSURL *movieURL = [NSURL URLWithString:[[NSUserDefaults standardUserDefaults] valueForKey:@"mediaURL"]];
NSString *path = [NSTemporaryDirectory() stringByAppendingPathComponent:@"Video.MOV"];
NSData *imageData = [NSData dataWithContentsOfURL:movieURL];
[imageData writeToFile:path atomically:YES];
NSURL *url = [[NSURL alloc] initFileURLWithPath:path];
AWSS3GetPreSignedURLRequest *getPreSignedURLRequest = [AWSS3GetPreSignedURLRequest new];
getPreSignedURLRequest.bucket = <Your Bucket Id>;
getPreSignedURLRequest.key = [NSString stringWithFormat:@"%@.MOV",MediaId];
getPreSignedURLRequest.HTTPMethod = AWSHTTPMethodPUT;
getPreSignedURLRequest.expires = [NSDate dateWithTimeIntervalSinceNow:3600];
//Important: must set contentType for PUT request
getPreSignedURLRequest.contentType = @"movie/mov";;
[[[AWSS3PreSignedURLBuilder defaultS3PreSignedURLBuilder] getPreSignedURL:getPreSignedURLRequest] continueWithBlock:^id(BFTask *task) {
if (task.error)
{
NSLog(@"Error BFTask: %@", task.error);
[self showError];
}
else
{
// [SVProgressHUD dismiss];
NSURL *presignedURL = task.result;
NSLog(@"upload presignedURL is: n%@", presignedURL);
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:presignedURL];
request.cachePolicy = NSURLRequestReloadIgnoringLocalCacheData;
[request setHTTPMethod:@"PUT"];
[request setValue:@"movie/mov" forHTTPHeaderField:@"Content-Type"];
// Background NSURLSessions do not support the block interfaces, delegate only.
NSURLSessionUploadTask *uploadTask = [self.urlSession uploadTaskWithRequest:request fromFile:url];
[uploadTask resume];
}
return nil;
}];
}
- (void)URLSession:(NSURLSession *)session task:(NSURLSessionTask *)task didSendBodyData:(int64_t)bytesSent totalBytesSent:(int64_t)totalBytesSent totalBytesExpectedToSend:(int64_t)totalBytesExpectedToSend {
// Upload progress
NSLog(@"Progress : %f", (float) totalBytesSent / totalBytesExpectedToSend);
float progress = (float)( totalBytesSent / totalBytesExpectedToSend);
[SVProgressHUD showProgress:progress status:@"Uploading video..." maskType:SVProgressHUDMaskTypeBlack];
}
- (void)URLSession:(NSURLSession *)session task:(NSURLSessionTask *)task didCompleteWithError:(NSError *)error
{
if (error)
{
NSLog(@"S3 UploadTask: %@ completed with error: %@", task, [error localizedDescription]);
[SVProgressHUD showErrorWithStatus:@"Error in Uploding."];
}
else
{
NSLog(@"S3 UploadTask: %@ completed @", task);
[self PrepareVideoPfFile:VideoId];
AWSS3GetPreSignedURLRequest does not contain ACL property, so it has to be set after file was uploaded
AWSS3PutObjectAclRequest *aclRequest = [AWSS3PutObjectAclRequest new];
aclRequest.bucket = @"your_bucket";
aclRequest.key = @"yout_key";
aclRequest.ACL = AWSS3ObjectCannedACLPublicRead;
[[self.awss3 putObjectAcl:aclRequest] continueWithBlock:^id(BFTask *bftask) {
dispatch_async(dispatch_get_main_queue(), ^{
if (bftask.error)
{
NSLog(@"Error putObjectAcl: %@", [bftask.error localizedDescription]);
}
else
{
NSLog(@"ACL for an uploaded file was changed successfully!");
}
});
return nil;
}];
}
}