How can I parse post method of json ?

let parameters = [
            "NationalCode": "06097732",
            "password": "0012"
        ]
        let url = "http://android/home/login"
              Alamofire.request(url, method: .post, parameters: parameters, encoding: URLEncoding.httpBody).responseJSON { response in
            
            if let data = response.data {
                let json = String(data: data, encoding: String.Encoding.nonLossyASCII)
                print(json)
                self.lbl1.text=json
               
                }
            }

"{\"id\":\"3\",\"name\":\"jac\"}"

if let q=json as? Dictionary<String,AnyObject>{
                   if let PName=q["name"] as? String{
                       self.lbl1.text=PName
                   }
               }