從iPhone上傳視頻文件到服務器

Question

我知道如何將圖像上傳到運行PHP的服務器，但我一直在上傳視頻。

我用this advice來上傳我的視頻文件。

發帖方式沒問題。我在服務器上得到的是一個0字節的文件。

我的代碼如下：

- (void)imagePickerController:(UIImagePickerController *)picker 
      didFinishPickingMediaWithInfo:(NSDictionary *)info { 

    NSURL *videoURL = [info objectForKey:UIImagePickerControllerMediaURL]; 
    NSData *videoData = [NSData dataWithContentsOfFile:[videoURL path]]; 
} 

此可視數據是在我的POST方法傳遞。

我該怎麼做呢？

Answer 1

張貼視頻，您需要圖片選擇委託

- (NSData *)generatePostDataForData:(NSData *)uploadData 
{ 
    // Generate the post header: 
    NSString *post = [NSString stringWithCString:"--AaB03x\r\nContent-Disposition: form-data; name=\"upload[file]\"; filename=\"somefile\"\r\nContent-Type: application/octet-stream\r\nContent-Transfer-Encoding: binary\r\n\r\n" encoding:NSASCIIStringEncoding]; 

    // Get the post header int ASCII format: 
    NSData *postHeaderData = [post dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES]; 

    // Generate the mutable data variable: 
    NSMutableData *postData = [[NSMutableData alloc] initWithLength:[postHeaderData length] ]; 
    [postData setData:postHeaderData]; 

    // Add the image: 
    [postData appendData: uploadData]; 

    // Add the closing boundry: 
    [postData appendData: [@"\r\n--AaB03x--" dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES]]; 

    // Return the post data: 
    return postData; 
} 


- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{ 

    //assign the mediatype to a string 
    NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType]; 

    //check the media type string so we can determine if its a video 
    if ([mediaType isEqualToString:@"public.movie"]){ 
     NSLog(@"got a movie"); 
     NSURL *videoURL = [info objectForKey:UIImagePickerControllerMediaURL]; 
     NSData *webData = [NSData dataWithContentsOfURL:videoURL]; 
     [self post:webData]; 
     [webData release]; 

    } 

後，使用此功能後視頻使用此功能

- (void)post:(NSData *)fileData 
{ 

    NSLog(@"POSTING"); 

    // Generate the postdata: 
    NSData *postData = [self generatePostDataForData: fileData]; 
    NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]]; 

    // Setup the request: 
    NSMutableURLRequest *uploadRequest = [[[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:@"http://www.example.com:3000/"] cachePolicy: NSURLRequestReloadIgnoringLocalCacheData timeoutInterval: 30 ] autorelease]; 
    [uploadRequest setHTTPMethod:@"POST"]; 
    [uploadRequest setValue:postLength forHTTPHeaderField:@"Content-Length"]; 
    [uploadRequest setValue:@"multipart/form-data; boundary=AaB03x" forHTTPHeaderField:@"Content-Type"]; 
    [uploadRequest setHTTPBody:postData]; 

    // Execute the reqest: 
    NSURLConnection *conn=[[NSURLConnection alloc] initWithRequest:uploadRequest delegate:self]; 
    if (conn) 
    { 
     // Connection succeeded (even if a 404 or other non-200 range was returned). 
     NSLog(@"sucess"); 
     UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Got Server Response" message:@"Success" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil]; 
     [alert show]; 
     [alert release]; 
    } 
    else 
    { 
     // Connection failed (cannot reach server). 
     NSLog(@"fail"); 
    } 

}