关于图片没有上传到web服务器中

上传一个图片到web服务器上，但是上传后之后图片的名字被保存了，图片没保存

代码：

- (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    [self dismissModalViewControllerAnimated:YES];    
    NSData *image = UIImageJPEGRepresentation([info objectForKey:UIImagePickerControllerOriginalImage], 0.1);    
    NSMutableString *urlString = [[NSMutableString alloc] initWithFormat:@"name=thefile&&filename=recording"];
    [urlString appendFormat:@"%@", image];
    NSData *postData = [urlString dataUsingEncoding:NSASCIIStringEncoding
                               allowLossyConversion:YES];
    NSString *postLength = [NSString stringWithFormat:@"%d", [postData length]];
    NSString *baseurl = @"http://192.168.2.34/Service1.svc/upload/filename.png";    
    NSURL *url = [NSURL URLWithString:baseurl];
    NSMutableURLRequest *urlRequest = [NSMutableURLRequest requestWithURL:url];
    [urlRequest setHTTPMethod: @"POST"];
    [urlRequest setValue:postLength forHTTPHeaderField:@"Content-Length"];
    [urlRequest setValue:@"application/x-www-form-urlencoded"
      forHTTPHeaderField:@"Content-Type"];
    [urlRequest setHTTPBody:postData];
    NSURLConnection *connection = [NSURLConnection connectionWithRequest:urlRequest delegate:self];
    [connection start];
    NSLog(@"Started!");
}

上传之后图片：

但是打开图片时会显示空：