上传文件只传输less量的数据-IOS

朋友你好，我是iPhone新手。 我想在服务器上传video。 我已经尝试了几种方法，但只有几个字节传输到服务器。 波纹pipe是我的iOS代码

我在这里粘贴了我的代码。 提前致谢。

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info { NSURL *urlString = [info valueForKey:UIImagePickerControllerMediaURL]; self.videoData = [NSData dataWithContentsOfURL:urlString]; // NSLog(@"%@",self.videoData); NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *dataPath = [documentsDirectory stringByAppendingPathComponent:@"Default Album"]; if (![[NSFileManager defaultManager] fileExistsAtPath:dataPath]) [[NSFileManager defaultManager] createDirectoryAtPath:dataPath withIntermediateDirectories:NO attributes:nil error:nil]; videopath= [[NSString alloc] initWithString:[NSString stringWithFormat:@"%@/Video.mov",documentsDirectory]]; BOOL success = [videoData writeToFile:videopath atomically:NO]; NSLog(@"Successs:::: %@", success ? @"YES" : @"NO"); NSLog(@"video path --> %@",videopath); [self uploadVideo]; [self dismissViewControllerAnimated:YES completion:nil]; } - (void)video:(NSString *)videoPath didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo { NSLog(@"Error"); } -(void)uploadVideo { self.responseData = [[NSMutableData alloc] init]; NSString *urlStr; urlStr = [NSString stringWithFormat:@"http://iwillstudy.com/videomash/UploadToServer.php?pid=%@&uid=%@",[self.dictDetail objectForKey:@"id"],appDel.strEmailId]; NSMutableURLRequest *request = [[NSMutableURLRequest alloc] init]; [request setCachePolicy:NSURLRequestReloadIgnoringLocalCacheData]; [request setHTTPShouldHandleCookies:NO]; [request setTimeoutInterval:300]; [request setHTTPMethod:@"POST"]; NSString *boundary = @"****"; NSString *contentType = [NSString stringWithFormat:@"multipart/form-data;boundary=%@", boundary]; [request setValue:contentType forHTTPHeaderField: @"Content-Type"]; NSMutableData *body = [NSMutableData data]; NSMutableDictionary *sendData = [[NSMutableDictionary alloc]init]; [sendData setValue:videoData forKey:@"uploaded_file"]; for (id key in sendData) { [body appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"%@\";filename=\" %@ \"\r\n\r\n", key,videopath] dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[@"Content-Type: application/octet-stream\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]]; [body appendData:[NSData dataWithData:videoData]]; [body appendData:[[NSString stringWithFormat:@"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]]; } [body appendData:[[NSString stringWithFormat:@"--%@--\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]]; [request setHTTPBody:body]; [request setURL:[NSURL URLWithString:urlStr]]; HUD = [[MBProgressHUD alloc] init]; [self.view addSubview:HUD]; [HUD setDelegate:self]; [HUD setLabelText:@"Loading...."]; [HUD show:YES]; NSLog(@"FBLogin URL:%@",urlStr); NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self]; [connection start]; } 

贝娄是我的PHPfile uploadvideo

 <?php include "dbconn.php"; $file_path = "uploads/"; $file_path = $file_path . basename( $_FILES['uploaded_file']['name']); if(move_uploaded_file($_FILES['uploaded_file']['tmp_name'], $file_path)) { echo "success - file uploaded"; $sql="INSERT INTO surveyvideos (name, path,added) VALUES ('$file_path','$file_path',Now())"; if (!mysqli_query($con,$sql)) { die('Error: ' . mysqli_error($con)); } echo "1"; } else{ echo "0"; } ?> 

请帮助我，我从最近3天以来一直坚持着，你能告诉我我一直在做什么错误。