Question

这是我的代码..它是一个非常简单的操作

[self GET:operationName parameters:params success:^(NSURLSessionDataTask *task, id responseObject) {
          NSLog(@"%@", responseObject);
          //do something upon success
        }
    } failure:^(NSURLSessionDataTask *task, NSError *error) {
         //do something to handle error
    }];

我的问题是，我需要看看确切的原始json响应是什么..当我NSLog的responseObject时，它与我从独立的HTTP客户端得到的JSON输出不一样_我猜它是因为它已经通过了串行器？

Answer 1

如果您不希望它NSJSONSerialization转换为NSArray / NSDictionary，而是想要原始NSData，则应设置{ responseSerializer到AFURLSessionManager的{1}}。

AFHTTPResponseSerializer

默认值为self.responseSerializer = [AFHTTPResponseSerializer serializer];。如果您不希望它为您转换JSON，请更改响应序列化程序。

Answer 2

您可以使用“AFNetworkingOperationFailingURLResponseDataErrorKey”键直接从AFNetworking访问“data”对象，因此无需对AFJSONResponseSerializer进行子类化。您可以将数据序列化为可读字典。以下是一些示例代码：

 NSData *errorData = error.userInfo[AFNetworkingOperationFailingURLResponseDataErrorKey];
 NSDictionary *serializedData = [NSJSONSerialization JSONObjectWithData: errorData options:kNilOptions error:nil];

Answer 3

很难使用他们的API挂钩AF的原始响应，即使在调试级别，他们的logger也会在输出到控制台之前反序列化JSON。

我在AFURLSessionManager.m文件中添加了以下行。

NSLog(@"Response String: %@", [[NSString alloc] initWithData:[NSData dataWithData:self.mutableData] encoding:NSUTF8StringEncoding]);

在此NSURLSessionTaskDelegate委托方法

中

- (void)URLSession:(__unused NSURLSession *)session task:(NSURLSessionTask *)task didCompleteWithError:(NSError *)error

这里是在上下文中（对于成功的响应，没有错误）

{
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wgnu"
__strong AFURLSessionManager *manager = self.manager;

__block id responseObject = nil;

__block NSMutableDictionary *userInfo = [NSMutableDictionary dictionary];
userInfo[AFNetworkingTaskDidCompleteResponseSerializerKey] = manager.responseSerializer;

if (self.downloadFileURL) {
    userInfo[AFNetworkingTaskDidCompleteAssetPathKey] = self.downloadFileURL;
} else if (self.mutableData) {
    userInfo[AFNetworkingTaskDidCompleteResponseDataKey] = [NSData dataWithData:self.mutableData];
}

if (error) {
    userInfo[AFNetworkingTaskDidCompleteErrorKey] = error;

    dispatch_group_async(manager.completionGroup ?: url_session_manager_completion_group(), manager.completionQueue ?: dispatch_get_main_queue(), ^{
        if (self.completionHandler) {
            self.completionHandler(task.response, responseObject, error);
        }

        dispatch_async(dispatch_get_main_queue(), ^{
            [[NSNotificationCenter defaultCenter] postNotificationName:AFNetworkingTaskDidCompleteNotification object:task userInfo:userInfo];
        });
    });
} else {
    dispatch_async(url_session_manager_processing_queue(), ^{
        NSError *serializationError = nil;
        NSLog(@"Response String: %@", [[NSString alloc] initWithData:[NSData dataWithData:self.mutableData] encoding:NSUTF8StringEncoding]);
        responseObject = [manager.responseSerializer responseObjectForResponse:task.response data:[NSData dataWithData:self.mutableData] error:&serializationError];

        if (self.downloadFileURL) {
            responseObject = self.downloadFileURL;
        }

        if (responseObject) {
            userInfo[AFNetworkingTaskDidCompleteSerializedResponseKey] = responseObject;
        }

        if (serializationError) {
            userInfo[AFNetworkingTaskDidCompleteErrorKey] = serializationError;
        }

        dispatch_group_async(manager.completionGroup ?: url_session_manager_completion_group(), manager.completionQueue ?: dispatch_get_main_queue(), ^{
            if (self.completionHandler) {
                self.completionHandler(task.response, responseObject, serializationError);
            }

            dispatch_async(dispatch_get_main_queue(), ^{
                [[NSNotificationCenter defaultCenter] postNotificationName:AFNetworkingTaskDidCompleteNotification object:task userInfo:userInfo];
            });
        });
    });
}
#pragma clang diagnostic pop
}

如何从AFnetworking 2.0操作/ NSURLSessioNDataTask获取原始JSON响应？

3 个答案: