如何使用AFNetworking 2设置HTTP请求？

Question

我需要发送普通的HTTP请求（GET）并在text / html中回答。 如何使用AFNetworkin 2发送此响应？

现在我正在尝试使用

NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:@"https://example.com"]];
[self HTTPRequestOperationWithRequest:request
                              success:^(AFHTTPRequestOperation *operation, id responseObject) {
                                  NSLog(@"JSON: %@", responseObject);
                              } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
                                  NSLog(@"Error: %@", error);
                              }];

并且感到沮丧 - 它什么都不做。 调试时，也没有触发成功或失败子句。

另外我尝试使用GET：参数：成功：失败：方法，但作为响应我看到这个错误：

错误：错误域= AFNetworkingErrorDomain代码= -1016“请求失败：不可接受的内容类型：text / html”

请问，任何人都可以解释我有什么问题，以及发送请求的正确方法是什么（如果我将以text / html的形式获得响应）？

问候，亚历克斯。

Answer 1

你在评论中说，为了回应使用AFHTTPRequestOperationManager的建议：

当我使用GET时，我在上面写了这个错误：错误：错误域= AFNetworkingErrorDomain代码= -1016“请求失败：不可接受的内容类型：text / html”

您可以使用AFHTTPResponseSerializer来解决这个AFHTTPResponseSerializer ：

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
manager.responseSerializer = [AFHTTPResponseSerializer serializer];
[manager GET:@"https://example.com" parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) {
    // do whatever you'd like here; for example, if you want to convert 
    // it to a string and log it, you might do something like:

    NSString *string = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];
    NSLog(@"%@", string);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"Error: %@", error);
}];

您也可以使用AFHTTPRequestOperation ：

NSOperationQueue *networkQueue = [[NSOperationQueue alloc] init];
networkQueue.maxConcurrentOperationCount = 5;

NSURL *url = [NSURL URLWithString:@"https://example.com"];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
    // do whatever you'd like here; for example, if you want to convert 
    // it to a string and log it, you might do something like:

    NSString *string = [[NSString alloc] initWithData:responseObject encoding:NSUTF8StringEncoding];
    NSLog(@"%@", string);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
    NSLog(@"%s: AFHTTPRequestOperation error: %@", __FUNCTION__, error);
}];
[networkQueue addOperation:operation];

但理想情况下，建议编写返回JSON（或XML）的服务器代码，因为应用程序更容易使用和解析。

Answer 2

//AFN 2.0 is just support IOS 7,and it's standard use as follow:

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
[manager GET:@"http://example.com/resources.json" 
  parameters:nil
     success:^(AFHTTPRequestOperation *operation, id responseObject) {
               NSLog(@"JSON: %@", responseObject)
     }failure:^(AFHTTPRequestOperation *operation, NSError *error) {
               NSLog(@"Error: %@", error);
     }
];