///
/// 上传图片
+ (AFHTTPRequestOperation *)uploadImageWithUrl:(NSString *)url
                                         image:(UIImage *)image
                                    completion:(HYBRequestCompletion)completion
                                    errorBlock:(HYBErrorBlock)errorBlock {
  url = [url addPrefix:@"/CosmetologyShop"];
  if ([HYBUserInfoTool userToken]) {
    url = [NSString stringWithFormat:@"%@?TOKEN=%@", url, [HYBUserInfoTool userToken]];
  }
  
  AFHTTPRequestOperationManager *manager = [self operationManagerWithBaseUrl:kFileBaseUrl];
  AFHTTPRequestOperation *op = [manager POST:url parameters:nil constructingBodyWithBlock:^(id<AFMultipartFormData> formData) {
    NSData *imageData = UIImageJPEGRepresentation(image, 1);
    
    NSDateFormatter *formatter = [[NSDateFormatter alloc] init];
    formatter.dateFormat = @"yyyyMMddHHmmss";
    NSString *str = [formatter stringFromDate:[NSDate date]];
    NSString *fileName = [NSString stringWithFormat:@"%@.jpg", str];

    // 上传图片，以文件流的格式
    [formData appendPartWithFileData:imageData name:@"myfiles" fileName:fileName mimeType:@"image/jpeg"];
  } success:^(AFHTTPRequestOperation *operation, id responseObject) {
    completion(responseObject);
  } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    errorBlock(error);
  }];

  return op;
}

注意这里上传的是文件流，具体参数说明，看AFN的API说明。

name这里是服务器中指定的文件夹名。