Question

当我向服务器发送数据时，Post完全正常并且完整有效但错误

erro return：

 B
Error Domain=NSCocoaErrorDomain Code=3840 "No value." UserInfo={NSDebugDescription=No value.}

完美地从服务器返回数据

data =

[{ “$ id”：“1”， “Id”：14， “来源”：23， “Destination_”：21， “独家”：虚假， “AdultPrice”：“70766”， “ChildPrice”：“77076”， “BabyPrice”：“54109”， “VetranPrice”：“118664”， “DepartureDate”：“1997-09-25T00：00：00”， “ArrivalDate”：“2001-03-24T00：00：00”， “TrainTypeId”：1， “NumberofSeats”：153}]

你可以说出原因是什么？

        let request = NSMutableURLRequest(URL: todosUrlRequest)
        request.HTTPMethod = "POST"
        request.setValue("application/json; charset=uft-8", forHTTPHeaderField: "Content-Type")
        request.addValue("application/json", forHTTPHeaderField: "Accept")
        request.cachePolicy = NSURLRequestCachePolicy.ReloadIgnoringCacheData
        //3
        let newTodo = [
            "NumberOfPassenger": tedat,
            "Source": cityIDSource,
            "Destination": cityIDDestination,
            "DapartureDate": raftDate,
            "TicketType": typeTrainID,
            "TravelType": 6,
            "CloseDoor": copeqtar
            ]
        print(newTodo)
        //4
        let jsonTodo: NSData
        do {
            jsonTodo = try NSJSONSerialization.dataWithJSONObject(newTodo, options: [])
            request.HTTPBody = jsonTodo

        } catch {
            print("Error: cannot create JSON from todo")
            return
        }

        print(jsonTodo)


        request.HTTPBody = jsonTodo
        //5
        let config = NSURLSessionConfiguration.defaultSessionConfiguration()
        let session = NSURLSession(configuration: config)

        let task = session.dataTaskWithRequest(request) {
            (data, response, error) in
            // statusResponse
            if let HTTPResponse = response as? NSHTTPURLResponse {
                let statusCode = HTTPResponse.statusCode

                if statusCode == 200 {
                    print(response)
                    //6
                    print(data)
                    if data != nil {

                        let responseString = NSString(data: data!, encoding: NSUTF8StringEncoding)
                        print("responseString = \(responseString)")

                    }

                    guard let responseData = data else {
                        return
                    }
                    self.dataRecive = responseData

                    print("currect")
                }else{
                    print("error calling POST on /todos/1")
                    print(error)


                }

            }
            dispatch_async(dispatch_get_main_queue()){
                actInd.stopAnimating()

            }

        }
        task.resume()

错误域= swift中的NSCocoaErrorDomain

0 个答案: