错误域=NSURLErrorDomain 代码=-1017 “操作不能

Question

I just started ios development and I'm trying to exchange data with my api. When I'm doing POST requests everything is going fine but when I'm trying to do a GET request I get the following error:

Error Domain=NSURLErrorDomain Code=-1017 "The operation couldn't be completed. (NSURLErrorDomain error -1017.)" UserInfo=0x145a2c00 {NSErrorFailingURLStringKey= http://myAPI.com/ , _kCFStreamErrorCodeKey=-1, NSErrorFailingURLKey= http://myAPI.com , _kCFStreamErrorDomainKey=4, NSUnderlyingError=0x145b21d0 "The operation couldn't be completed. (kCFErrorDomainCFNetwork error -1017.)"}

Could someone explain what's going wrong and how I can fix it?

My request:

-(void)hitApiWithURL:(NSString*)url HTTPMethod:(NSString*)HTTPMethod params:(NSDictionary*)params successBlock:(successTypeBlock)success  failureBlock:(errorTypeBlock)failure{


    NSURLSessionConfiguration *sessionConfig = [NSURLSessionConfiguration defaultSessionConfiguration];
    NSURLSession *session = [NSURLSession sessionWithConfiguration:sessionConfig delegate:self delegateQueue:nil];


    [sessionConfig setHTTPAdditionalHeaders:@{@"Content-type": @"application/json"}];
    NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:url]];
    [request setHTTPMethod:HTTPMethod];

    // The body
    NSError *error = nil;
    NSData *jsonData = [NSJSONSerialization dataWithJSONObject:params options:0 error:&error];
    [request setHTTPBody:jsonData];


    NSURLSessionDataTask *dataTaks = [session dataTaskWithRequest:request];
    [dataTaks resume];

    NSLog(@"dataTask started");

}


- (void)URLSession:(NSURLSession *)session task:(NSURLSessionTask *)task
didCompleteWithError:(NSError *)error {
    if (error) {
        //Gives my error
    }
    else {
        // do something:
    }
}

Answer 1

If you forget to mention HTTPMethod, the error can also take place, I faced the Problem "NSURLErrorDomain Code=-1017", somehow i forget to add line "request.HTTPMethod = "POST".

After adding the line, my code worked perfectly.

Answer 2

您的 JSON 参数有问题：

kCFURLErrorCannotParseResponse = -1017

Answer 3

当您使用主体集 ( setHTTPBody ) 执行GET请求时，会发生此错误

Answer 4

For any other people who got error code -1017 -- I fixed it by manually setting my http headers in my http request. I think the server was having problems parsing the HTTP headers because instead of the string "Authorization" : "qii2nl32j2l3jel" my headers didn't have the quotes like this: Authorization : "1i2j12j" . Good luck.

Something like this:

NSMutableDictionary* newRequestHTTPHeader = [[NSMutableDictionary alloc] init];
[newRequestHTTPHeader setValue:authValue forKey:@"\"Authorization\""];
[newRequestHTTPHeader setValue:contentLengthVal forKey:@"\"Content-Length\""];
[newRequestHTTPHeader setValue:contentMD5Val forKey:@"\"Content-MD5\""];
[newRequestHTTPHeader setValue:contentTypeVal forKey:@"\"Content-Type\""];
[newRequestHTTPHeader setValue:dateVal forKey:@"\"Date\""];
[newRequestHTTPHeader setValue:hostVal forKey:@"\"Host\""];
[newRequestHTTPHeader setValue:publicValue forKey:@"\"public-read-write\""];

//the proper request is built with the new http headers.
NSMutableURLRequest* request2 = [[NSMutableURLRequest alloc] initWithURL:request.URL];
[request2 setAllHTTPHeaderFields:newRequestHTTPHeader];
[request2 setHTTPMethod:request.HTTPMethod];

Answer 5

PLease check this link

Alamofire.request(method, "(URLString)" , parameters: parameters, headers: headers).responseJSON { response in }

in post method you also add

parameters:parameters, encoding: .JSON

(if you added encoding line to GET POST then error will come "cannot parse response")

2nd please check the header as well.

["authentication_token" : "sdas3tgfghret6grfgher4y"]

then Solved this issue.

Answer 6

It isn't direct solution to this case but might help someone with -1017 error.

I had this issue after upgrading Alamofire from 4.8.0 to 5.2.2 . Problem was with HTTPHeader .

var authorizationHeader: HTTPHeader {
    guard let session = user?.session else {
        return HTTPHeader(name: "", value: "") 
    }
    return HTTPHeader(name: "Authorization", value: "Bearer \(session)")
}

Apparently sending HTTPHeader with empty key-value ie HTTPHeader(name: "", value: "") triggers this error. I adjusted my code to instead return nil and it solved the issue.

Answer 7

For me when send one empty header like ["":""]. Triggers this error 1017.

Solution, if you have declare:

let headers = ["":""]

the best one option is set to nil:

let headers = nil

Then you can:

sessionManager.request( "www.example.com", method: .post, parameters: parameters, encoding: encoding, headers: headers ).responseJSON { response in....