Swift 3 – 如何使用Alamofire和SwiftyJSON获取JSON对象

我想在我的REST api中使用Alamofire和SwiftyJSON。我已经访问了根json，但我无法访问json的对象。 结合这两个库正确解析它的最佳方法是什么？

我的JSON： –

[ { "ID": 2, "Nm": "ABC", "Descr": null, "BeenCnt": "9", "FavCnt": "9", "ImgPath": "pathtoimage", "TypeID": 4, "Type": null, "DayCnt": 5, "NightCnt": 4, "ValidDate": null, "UsrCommentCnt": null, "TourDates": null, "CityList": [ { "KeyID": null, "ID": 1, "Data": "abc" }, { "KeyID": null, "ID": 12, "Data": "abc" } ], "Seller": { "ID": 1, "Nm": "abc", "CityNm": null, "StateNm": null, "CommentCnt": null, "BeenCnt": null, "Add": null, "PackList": [] }, "Chrg": { "ID": 0, "PaxDetail": "Per Person", "PkgMode": null, "Amt": 15000, "AmtCurrID": 2, "AmtCurr": null, "ChargeSeq": 0 }, "ItineraryList": [] } 

我希望’Chrg’填充在我的UICollectionView 。

我正在尝试编码： –

 Alamofire.request(url).responseJSON { (responseData) -> Void in if((responseData.result.value) != nil) { let swiftyJSONVar = JSON(responseData.result.value!) if let resData = swiftyJSONVar[].arrayObject { self.arrRes = resData as! [[String:AnyObject]] print(self.arrRes) } if self.arrRes.count > 0 { self.collection.reloadData() } } } 

我的UICollectionViewCell ： –

  func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell { let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "cell", for: indexPath) as! PackagesCell var dict = arrRes[(indexPath as NSIndexPath).row] var charge = dict["Chrg"] as! Dictionary cell.amtLbl.text = charge["Amt"] as? String cell.NmLbl.text = dict["Nm"] as? String cell.nightsLbl.text = String(Int((dict["NightCnt"] as! Int64))) cell.dayLbl.text = String(Int(dict["DayCnt"] as! Int64)) cell.perPersonLbl.text = dict["PaxDetail"] as? String cell.validTillLbl.text = dict["ValidDate"] as? String cell.iternaryListLbl.text = dict["CityList"]?["Data"] as? String cell.cmtLbl.text = dict["BeenCnt"] as? String cell.beenCmtLbl.text = dict["FavCnt"] as? String self.id = String(dict["ID"] as! Int64) let ImgPath = dict["ImgPath"] as? String let fulURL = "\(self.site + ImgPath!)" let newURL = fulURL.replacingOccurrences(of: "\\", with: "/") let newwURL = newURL.replacingOccurrences(of: "png", with: "jpg") cell.img.sd_setImage(with: URL(string:newwURL), placeholderImage: UIImage(named: "placeholder.png")) return cell } 

Answer 1

我认为有更好的方法来解析JSON

简单地说明一下：

 if let jsonArray = responseData.result.value as? Array> { print("Json Response: \(jsonArray)") // serialized json response self.arrRes = jsonArray } if let arrCityList = self.arrRes[0]["CityList"] as? Array> { print(arrCityList)// You can populate the table from city list } 

Answer 2

你需要做的是为上面提到的json创建一个模型，然后你可以很容易地在collectionview中填充数据

Answer 3

你走在正确的轨道上。 这是我通常如何去做。

 .... let jsonResponse = JSON(responseData.result.value!) var firstName = (jsonResponse["result"]["name"]).string?; var lastName = (jsonResponse["result"]["surname"]).string?; var emails = (jsonResponse["result"]["emails"]).array?; //make your object or object array here using the values above. eg var cic = CustomItemForCollection( name : firstName , surname: lastName, emailArr: emails ) ... 

SwiftyJson的JSON有很多类型可以生成，其实质上就是它为你输入的类型。