NSUrlSession ne fonctionne pas

Question

Salut je suis très nouveau pour ios et dans mon projet, je me sers NSUrlSession pour appeler les services

mais dans mon code ci-dessous je dois maintenir si et conditions d'autre pour la réponse du serveur de remise, mais les cas et conditions d'autre ne pas appeler

s'il vous plaît aidez-moi où était le mistack happand?

- (void)viewDidLoad { 
    [super viewDidLoad]; 

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:myurl here]]; 

                  cachePolicy:NSURLRequestUseProtocolCachePolicy 

                 timeoutInterval:60.0]; 


    [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"]; 
    [request setHTTPMethod:@"GET"]; 
    [request setHTTPBody:[self httpBodyForParamsDictionary:params]]; 


    //You now can initiate the request with NSURLSession or NSURLConnection, however you prefer. For example, with NSURLSession, you might do: 

    NSURLSessionTask *task = [[NSURLSession sharedSession] dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) { 


     if (error) { 

      NSLog(@"dataTaskWithRequest error: %@", error); 

      NSString * BasicnetworkError = [error localizedDescription]; 
      NSString * AppendString = @"Http Response failed with the following "; 
      NSString * networkError = [AppendString stringByAppendingString:BasicnetworkError]; 

      [self BasicError1:networkError]; 
     } 

     else if ([response isKindOfClass:[NSHTTPURLResponse class]]) { 

      NSInteger statusCode = [(NSHTTPURLResponse *)response statusCode]; 

      if (statusCode != 200) { 

       NSLog(@"Expected responseCode == 200; received %ld", (long)statusCode); 

       NSString *statusCodeError = [NSString stringWithFormat: @"Http Response failed with the following code %ld", (long)statusCode]; 

       [self BasicError1:statusCodeError]; 
      } 
     } 

     // If response was JSON (hopefully you designed web service that returns JSON!), 
     // you might parse it like so: 

     else{ 

     NSError *parseError; 
     id responseObject = [NSJSONSerialization JSONObjectWithData:data options:0 error:&parseError]; 

     NSLog(@"else condtion"); 

     if (!responseObject) { 

      NSLog(@"JSON parse error: %@", parseError); 

     } else { 

      NSLog(@"responseObject = %@", responseObject); 

      [self MainService:responseObject]; 
     } 

     //if response was text/html, you might convert it to a string like so: 
     // --------------------------------- 

     NSString *responseString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; 
     NSLog(@"final responseString = %@", responseString); 
     } 
    }]; 

    [task resume]; 
} 

- (NSData *)httpBodyForParamsDictionary:(NSDictionary *)paramDictionary{ 

    NSMutableArray *parameterArray = [NSMutableArray array]; 

    [paramDictionary enumerateKeysAndObjectsUsingBlock:^(NSString *key, NSString *obj, BOOL *stop) { 
     NSString *param = [NSString stringWithFormat:@"%@=%@", key, [self percentEscapeString:obj]]; 
     [parameterArray addObject:param]; 
    }]; 

    NSString *string = [parameterArray componentsJoinedByString:@"&"]; 

    return [string dataUsingEncoding:NSUTF8StringEncoding]; 
} 

- (NSString *)percentEscapeString:(NSString *)string{ 

    NSString *result = CFBridgingRelease(CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault, 
                       (CFStringRef)string, 
                       (CFStringRef)@" ", 
                       (CFStringRef)@":/?@!$&'()*+,;=", 
                       kCFStringEncodingUTF8)); 
    return [result stringByReplacingOccurrencesOfString:@" " withString:@"+"]; 
} 

Answer 1

Il y avait un cas de mauvais sinon sinon le bloc mentionné dans votre code. Veuillez utiliser le code ci-dessous.

- (void)viewDidLoad { 
    [super viewDidLoad]; 

    NSDictionary *mainDictionary = [NSDictionary dictionaryWithObjectsAndKeys: 
            @"COLLECTION",@"SearchBy", 
            @"1284",@"SearchKey", 
            @"",@"Color", 
            @"",@"PriceFrom", 
            @"",@"PriceTo", 
            @"",@"QtyFrom", 
            @"",@"QtyTo", 
            nil]; 

    NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http://203.77.214.78/StockManager/SL/SearchProducts"] 
                  cachePolicy:NSURLRequestUseProtocolCachePolicy 
                 timeoutInterval:60.0]; 

    [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"]; 
    [request setHTTPMethod:@"POST"]; 
    [request setHTTPBody:[self httpBodyForParamsDictionary:mainDictionary]]; 


    //You now can initiate the request with NSURLSession or NSURLConnection, however you prefer. For example, with NSURLSession, you might do: 

    NSURLSessionTask *task = [[NSURLSession sharedSession] dataTaskWithRequest:request completionHandler:^(NSData *data, NSURLResponse *response, NSError *error) { 


     if (error) { 

      NSLog(@"dataTaskWithRequest error: %@", error); 

     } 
     else if ([response isKindOfClass:[NSHTTPURLResponse class]]) { 

      NSInteger statusCode = [(NSHTTPURLResponse *)response statusCode]; 

      if (statusCode != 200) { 

       NSLog(@"Expected responseCode == 200; received %ld", (long)statusCode); 

      }else{ 

       NSError *parseError; 
       id responseObject = [NSJSONSerialization JSONObjectWithData:data options:0 error:&parseError]; 

       NSLog(@"else condtion"); 

       if (!responseObject) { 

        NSLog(@"JSON parse error: %@", parseError); 

       } else { 

        NSLog(@"responseObject = %@", responseObject); 

       } 

       //if response was text/html, you might convert it to a string like so: 
       // --------------------------------- 

       NSString *responseString = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding]; 
       NSLog(@"final responseString = %@", responseString); 
      } 
     } 
    }]; 

    [task resume]; 
}