AFNetworking 发出请求时遇到问题

AFNetworking Having trouble making a request

我是 AFNetworking 的新手,我有段时间做噩梦了。

到目前为止我已经创建了这个方法:

-(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];
}

我对下一步是什么感到非常困惑。我在另一个文件中有这个其他方法,我想调用 UserLogin 方法并传入用户名和密码,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.
        }
    }];

}

您的第二个代码片段的想法是正确的,但不清楚 "userName" 对象是什么。那应该是第一个 snippit 的方法所在的 class 的实例,您创建的方法的名称是 "UserLogin"(您输入 "User")。