NSCocoaErrorDomain代码= 3840

Question

  

我的错误是   unsuccessfullresponseSerializationFailed（Alamofire.AFError.ResponseSerializationFailureReason.jsonSerializationFailed（Error Domain = NSCocoaErrorDomain Code = 3840）“字符3周围的值无效。”UserInfo = {NSDebugDescription =字符3周围的值无效。}）

     

这里是我的网络服务alamofire

IBAction func loginbtn(_ sender: Any) {
        runPutRequest()
    }

func runPutRequest() {

    let parameters: Parameters = [
        "UserName" : "ABC",
        "Password" : "pass"
        ]

    func runPutRequest() {

    let par: Parameters = [
        "UserName" : "dominic.koh@circle8.asia",
        "Password" : "password2"
        ]

    let header: HTTPHeaders = [ "Accept": "application/json" ]

    Alamofire.request("http://circle8.asia:8081/Onet.svc/UserLogin",method:.post, parameters: par , encoding: URLEncoding.queryString,headers:header).responseJSON { (resDataLogin) -> Void in
    //    print(resDataLogin)
        switch  resDataLogin.result
        {
        case.success(let data) :
            print("YOUR Details>>  ",data)
            break
        case.failure(let error) :
            print("unsuccessfull\(error)");
            break
        }
    }

}