AFNetworking和POST请求

Question

我在从AFNetworking发出POST请求时收到error.userInfo中的此响应。 任何人都可以告诉我失去了什么明显的东西或需要修复我的服务器端？

Request Failed with Error: Error Domain=AFNetworkingErrorDomain Code=-1016 "Expected content type {( "text/json", "application/json", "text/javascript")}, got text/html" UserInfo=0x6d7a730 {NSLocalizedRecoverySuggestion=index test, AFNetworkingOperationFailingURLResponseErrorKey=, NSErrorFailingURLKey=http://54.245.14.201/, NSLocalizedDescription=Expected content type {( "text/json", "application/json", "text/javascript")}, got text/html, AFNetworkingOperationFailingURLRequestErrorKey=http://54.245.14.201/>}, { AFNetworkingOperationFailingURLRequestErrorKey = "http://54.245.14.201/>"; AFNetworkingOperationFailingURLResponseErrorKey = ""; NSErrorFailingURLKey = "http://54.245.14.201/"; NSLocalizedDescription = "Expected content type {(\n \"text/json\",\n \"application/json\",\n
\"text/javascript\"\n)}, got text/html"; NSLocalizedRecoverySuggestion = "index test"; }

而我正在使用这段代码;

AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:url]; 
[httpClient registerHTTPOperationClass:[AFJSONRequestOperation class]]; 
[httpClient setDefaultHeader:@"Accept" value:@"application/json"]; 
NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys: 
         @"Ans", @"name", 
         @"29", @"age", 
         nil]; 

NSMutableURLRequest *request = [httpClient requestWithMethod:@"POST" path:@"/" parameters:params]; 

AFJSONRequestOperation *operation = [AFJSONRequestOperation JSONRequestOperationWithRequest:request 
    success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) { 
     NSLog(@"Success"); 
     NSLog(@"%@",JSON); 

    } failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) { 
     NSLog(@"Request Failed with Error: %@, %@", error, error.userInfo); 
     NSLog(@"Failure"); 
}]; 

[operation start]; 
[operation waitUntilFinished]; 

Answer 1

默认情况下，AFJSONRequestOperation只接受“文字/ JSON” ，“application/json”或者“text/javascript”内容类型，但是你会得到“text/html”。

固定在服务器上会更好，但你也可以添加“text/html的”内容键入您的应用程序可以接受的：

[AFJSONRequestOperation addAcceptableContentTypes:[NSSet setWithObject:@"text/html"]]; 

它的工作对我来说，希望这有助于！

Answer 2

你发送的AFHTTPClient这个POST请求？如果是这样，你需要设置操作类是：

AFHTTPClient * client = [[AFHTTPClient alloc] initWithBaseURL:[NSURL URLWithString:@"http://localhost:8080"]]; 
// ... 
[client registerHTTPOperationClass:[AFJSONRequestOperation class]]; 
[client setDefaultHeader:@"Accept" value:@"application/json"]; 
// ... 

// EDIT: Use AFHTTPClient's POST method 
NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys: 
         @"Ans", @"name", 
         @"29", @"age", nil]; 

// POST, and for GET request, you need to use |-getPath:parameters:success:failure:| 
[client postPath:@"/" 
     parameters:params 
     success:^(AFHTTPRequestOperation *operation, id responseObject) { 
      NSLog(@"RESPONSE: %@", responseObject); 
      // ... 
     } 
     failure:^(AFHTTPRequestOperation *operation, NSError *error) { 
      if (error) 
      NSLog(@"%@", [error localizedDescription]); 
      // ... 
     } 

Answer 3

设置你的价值在这个代码，并检查它是否适合你

AFHTTPClient *httpClient = [[AFHTTPClient alloc]initWithBaseURL:[NSURL URLWithString:kBASEURL]]; 
     NSString *_path = [NSString stringWithFormat:@"groups/"]; 
     _path = [_path stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]; 
     NSLog(@"%s %@",__PRETTY_FUNCTION__,_path); 
     NSMutableURLRequest *request = [httpClient requestWithMethod:@"POST" 
                   path:_path 
                  parameters:postParams]; 
     [httpClient release]; 

     AFJSONRequestOperation *operation = [AFJSONRequestOperation 
              JSONRequestOperationWithRequest:request 
              success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) { 
               if ([JSON isKindOfClass:[NSArray class]] || [JSON isKindOfClass:[NSDictionary class]]) { 
                completed(JSON); 
               } 
               else { 
               } 
               [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];            

              } 
              failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) { 
               NSLog(@" response %@ \n error %@ \n JSON %@",response,error,JSON); 
               [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:NO];           
               errored(error); 
              }]; 

     NSOperationQueue *queue = [[[NSOperationQueue alloc] init] autorelease]; 
     [queue addOperation:operation]; 
     [[UIApplication sharedApplication] setNetworkActivityIndicatorVisible:YES];