Xcode https 调用 Restful API

Question

我在调用我们的 RESTful API 时遇到问题。请求是从 API 中获取令牌；我需要该令牌才能使用它来进一步调用该 API。

问题是，每当我拨打电话时，我都会收到 HTTP 403 状态代码，但我不知道为什么。我正在从 Android 拨打相同的电话，但它们工作正常，没有任何问题。

实际上我完全没有使用 xCode 的经验；我只是在其他开发人员编写的现有代码中实现一些更改。我不知道是我做错了什么还是什么。

  id keys[] = {@"grant_type", @"client_id", @"client_secret", @"username", @"password"};
  id objects[] = {@"password", @"AppClientID", @"AppClientSecret", @"usernamehere", @"userpasswordhere"};

  NSUInteger count = sizeof(objects)  / sizeof(id);
  NSDictionary *d = [NSDictionary dictionaryWithObjects:objects forKeys:keys count:count];

  NSData *jsonData = [NSJSONSerialization dataWithJSONObject:d options:NSJSONWritingPrettyPrinted error:nil];

  NSURL *url = [NSURL URLWithString:@"https://oauth-test.websitename.com/token"];

  NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:60];

  [request setHTTPMethod:@"POST"];

  [request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
  [request setValue:@"application/json" forHTTPHeaderField:@"Accept"];

  [request setValue:@"Basic" forHTTPHeaderField:@"Authorization"];
  [request setHTTPBody:jsonData];

  [NSURLConnection sendAsynchronousRequest:request
            queue:[NSOperationQueue mainQueue]
             completionHandler:^(NSURLResponse *response,
             NSData *data, NSError *connectionError) {

                 if(data.length > 0 && connectionError == nil)    {
                     NSLog(@"Response --> %@ ", response);
                 }
             }
   ];

有人可以帮我弄清楚到底出了什么问题吗？ 提前致谢。

Answer 1

我运行了你的代码和日志，我得到的是

Error Domain=NSURLErrorDomain Code=-1003 "A server with the specified 
hostname could not be found." UserInfo=
{NSUnderlyingError=0x608000059aa0 {Error Domain=kCFErrorDomainCFNetwork 
Code=-1003 "A server with the specified hostname could not be found." 
UserInfo={NSErrorFailingURLStringKey=http://oauth-
test.websitename.com/token, NSErrorFailingURLKey=http://oauth-
test.websitename.com/token, _kCFStreamErrorCodeKey=8, 
_kCFStreamErrorDomainKey=12, NSLocalizedDescription=A server with the 
specified hostname could not be found.}}, 
NSErrorFailingURLStringKey=http://oauth-test.websitename.com/token, 
NSErrorFailingURLKey=http://oauth-test.websitename.com/token, 
_kCFStreamErrorDomainKey=12, _kCFStreamErrorCodeKey=8, 
NSLocalizedDescription=A server with the specified hostname could not 
be found.}

我也用 NSUrlSession 尝试过，但它给出了同样的问题。 我认为您的服务器未配置

下面是带有 URL 会话的代码

id keys[] = {@"grant_type", @"client_id", @"client_secret", 
@"username", @"password"}; id objects[] = {@"password", @"AppClientID", @"AppClientSecret", @"usernamehere", @"userpasswordhere"};

NSUInteger count = sizeof(objects) / sizeof(id); NSDictionary *d = [NSDictionary dictionaryWithObjects:objects forKeys:keys count:count];

NSData *jsonData = [NSJSONSerialization dataWithJSONObject:d options:NSJSONWritingPrettyPrinted error:nil];

NSURL *url = [NSURL URLWithString:@"http://oauth-test.websitename.com/token"];

NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:60];

[request setHTTPMethod:@"POST"];

[request setValue:@"application/x-www-form-urlencoded" forHTTPHeaderField:@"Content-Type"];
[request setValue:@"application/json" forHTTPHeaderField:@"Accept"];

[request setValue:@"Basic" forHTTPHeaderField:@"Authorization"]; [request setHTTPBody:jsonData];

NSURLSession * session = [NSURLSession sessionWithConfiguration:[NSURLSessionConfiguration defaultSessionConfiguration]];
NSURLSessionDownloadTask *dataTask  = [session downloadTaskWithRequest:request completionHandler:^(NSURL * _Nullable location, NSURLResponse * _Nullable response, NSError * _Nullable error) {
    NSLog(@"%@", response);

}];

[dataTask resume];