如何使用GET REST方法與AFNetworking一起使用Objective C

Question

我想從我的服務器獲取JSON，但我需要將一些參數傳遞給URL。我不想將這些參數添加到URL，因爲它們包含Content-Type，DeviceType，DeviceID和Authorization。

對於一個簡單的URL請求我有下面的代碼，但響應爲空，請告訴我這段代碼有什麼問題？

Constant.h

#define KSERVER_URL @"http://101.127.236.85:6067/tmsservice/MobileService.svc/" 

#define KAppInfo_URL @"AuthenticateEmployee" 

-(void)loginRequestContentType:(NSString*) content deviceType:(NSString*) deviceT deviceID:(NSString*) devId Authorization:(NSString*) auth WithResponse: (void (^)(id responseObject, NSError *error))responseAndErr { 
NSString *urlString = [NSString stringWithFormat:@"%@%@",KSERVER_URL,KAppInfo_URL]; 

NSLog(@"URL = %@", urlString); 
NSMutableDictionary *parameters = [[NSMutableDictionary alloc] init]; 

[parameters setValue:@"application/json" forKey:@"Content-Type"]; 
[parameters setValue:@"iOS" forKey:@"DeviceType"]; 
[parameters setValue:@"123456" forKey:@"DeviceID"]; 
[parameters setValue:strGlobalfinalString forKey:@"Authorization"]; 

AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; 
manager.responseSerializer.acceptableContentTypes = [manager.responseSerializer.acceptableContentTypes setByAddingObject:@"text/html"]; 

[manager GET:urlString parameters:parameters success:^(AFHTTPRequestOperation *operation, id responseObject) { 
    responseAndErr(responseObject, Nil); 
} failure:^(AFHTTPRequestOperation *operation, NSError *error) { 
    responseAndErr(Nil, error); 
}]; 

}

Login.m

-(void)sendLoginRequest { 
    MBProgressHUD *progressIndicator = [MBProgressHUD showHUDAddedTo:self.navigationController.view animated:YES]; 
    progressIndicator.labelText = kLoadingTitle; 
    progressIndicator.detailsLabelText = kPleaseWaitText; 

    NSString *userEmail = self.userNameTextField.text; 
    NSString *userPassword = self.passwordTextField.text; 

    NSLog(@"Email = %@", userEmail); 
    NSLog(@"Password = %@", userPassword); 

    NSString *singleString = [NSString stringWithFormat: @"%@:%@", userEmail,userPassword]; 
    NSLog(@" Login Single String = %@", singleString); 

    NSData *nsdata = [singleString dataUsingEncoding:NSUTF8StringEncoding]; 
    // Get NSString from NSData object in Base64 
    NSString *base64Encoded = [nsdata base64EncodedStringWithOptions:0]; 

    // Print the Base64 encoded string 
    NSLog(@"Login Encoded: %@", base64Encoded); 


    strGlobalfinalString= [NSString stringWithFormat:@"Basic %@",base64Encoded]; 


    NSLog(@"Login Final Encoded String: %@", strGlobalfinalString); 

    [[NetwokManager sharedInstance] loginRequestContentType:@"application/json" deviceType:@"iOS" deviceID:@"123456" Authorization:strGlobalfinalString WithResponse:^(id responseObject, NSError *error) 

    { 
     [progressIndicator hide:YES]; 

     if (!error) { 

      NSLog(@"responseString = %@", responseObject); 
      HomeViewController *controller = [self.storyboard instantiateViewControllerWithIdentifier:@"HomeViewController"]; 
      [self.navigationController pushViewController:controller animated:YES]; 
      if (responseObject == nil) 
      { 
       NSLog(@"No data from server"); 
       [self showAlertViewWithMessage:@"No data downloaded from server!"]; 
      } 

      NSDictionary *resposneDict = (NSDictionary*)responseObject; 
      NSLog(@"New Dictionary Data = %@", resposneDict); 


      NSString *msg; 
      msg = [resposneDict objectForKey:@"status"]; 
      if ([msg isEqualToString:@"success"]) 
      { 


       HomeViewController *controller = [self.storyboard instantiateViewControllerWithIdentifier:@"HomeViewController"]; 
       [self.navigationController pushViewController:controller animated:YES]; 


      } 
      else if ([resposneDict objectForKey:@"StatusMessage"]) 
      { 
       [self showAlertViewWithMessage:@"Invalid credentials, please check your credentials"]; 
      } 
     } 
    }]; 
} 

Answer 1

更新AFNetworking到3.0或更高版本嘗試以下操作：

AFHTTPSessionManager *manager = [AFHTTPSessionManager manager]; 
NSDictionary *parameters = @{@"userid":userId, @"x-session": session}; 
NSString *urlString = @"http://api.example.com/sampleLink"; 
[manager GET:urlString parameters:parameters progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) { 
    NSLog(@"%@", responseObject); 

} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) { 
    NSLog(@"%@", [error localizedDescription]); 
}];