ios - 这是异步发送多个 NSMutableURLRequest 的正确方法吗？

Question

 __block   NSInteger outstandingRequests = [requestsArray count];
        for (NSURLRequest *request in requestsArray)
        {
            [NSURLConnection sendAsynchronousRequest:request
                                               queue:[NSOperationQueue mainQueue]
                                   completionHandler:^(NSURLResponse *response, NSData *data, NSError *error)
                                    {
                                      [self parseData:data];

                                       outstandingRequests--;
                                       if (outstandingRequests == 0)
                                       {
                                           [delegate finishApproveRejectAll];
                                       }
                                   }];
        }

Answer 1

如果一次有多个请求，你应该使用 NSOperationQueue