objective-c - iOS中的NSURLSession從網路取得數據

Question

NSURLSession能不能規定取得資料的類型，比如說我希望取得的是xml，但實際取得的卻是json，這樣就會報錯

NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration defaultSessionConfiguration];
    [configuration setHTTPAdditionalHeaders:@{@"Accept": @"application/xml"}];
    [configuration setHTTPAdditionalHeaders:@{@"Content-Type": @"application/xml"}];
    NSURLSession *session = [NSURLSession sessionWithConfiguration:configuration];

    NSURLSessionDataTask *task = [session dataTaskWithURL:url
                                        completionHandler:^(NSData * _Nullable data,
                                                            NSURLResponse * _Nullable response,
                                                            NSError * _Nullable error) {
        if (error) {
            NSLog(@"%@", [error localizedDescription]);
        } else {
            NSInteger statusCode = [(NSHTTPURLResponse *)response statusCode];
            if (200 != statusCode) {
                NSLog(@"HTTP status code = %ld", statusCode);
                success = NO;
            }
            NSLog(@"%@", data);
        }
    }];

Answer 1

NSURLSession沒有這個功能，您可以嘗試使用 AFNetworking