AF网络提出请求时遇到问题

Question

我是AFNetworking的新手，我正在做一场噩梦。

到目前为止，我已经创建了这种方法：

-(void)UserLogin:(NSString *)user andPassWordExists:(NSString *)password completionHandler:(void (^)(NSArray *resultsObject, NSError *error))completionHandler
{

   NSURL *url = [NSURL URLWithString:kIP];
   NSURLRequest *request = [NSURLRequest requestWithURL:url];
    AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc]
                                         initWithRequest:request];
    [operation setCredential:[NSURLCredential credentialWithUser:[@"domain" stringByAppendingString:user]
                                                        password:password persistence:NSURLCredentialPersistenceForSession]];
    operation.responseSerializer = [AFJSONResponseSerializer serializer];
    [[NSOperationQueue mainQueue] addOperation:operation];
    [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
        if (completionHandler) {
            completionHandler(responseObject, nil);
        }
    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
        if (completionHandler) {
            completionHandler(nil, error);
        }
    }];
    [operation start];
}

我只是非常困惑下一步该怎么做。我在另一个文件中有另一个方法，我想调用UserLogin方法并输入用户名和密码，我想这样做吗：

- (void)Login
{
    NSString *rawString = [self.idTextField text];
    NSCharacterSet *whitespace = [NSCharacterSet whitespaceAndNewlineCharacterSet];
    [self.idTextField setText:[rawString stringByTrimmingCharactersInSet:whitespace]];

    [userName User:self.idTextField.text andPassWordExists:self.passwordTextField.text:^(id responseObject, NSError *error) {
        if (responseObject) {
            //We have a user.
        }
    }];
}

Answer 1

第二个snippit的想法是正确的，但不清楚"userName"对象是什么。它应该是第一个snippet方法所在的类的一个实例，您创建的方法的名称是"UserLogin"（您放了"User"）。