使用字典将Alamofire中的JSON数据解析为数组

本文介绍了使用字典将Alamofire中的JSON数据解析为数组的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我正尝试从alamorefire解析JSON数据，如下所示.

I'm trying to parse JSON data from alamorefire as follows.

import UIKit import Alamofire import SwiftyJSON class ViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() Alamofire.request(.GET, "api.mynexttrainschedule/") .responseJSON { response in guard let object = response.result.value else { print("Oh, no!!!") return } let json = JSON(object);print(json) let schedule = json[0]["schedule"] } } }

如果我打印json，我的数据结构如下所示(简明扼要).

If I print json, I have a data structure like the following (stated concisely).

[ { "schedule" : [ {"departureTime" : "05:09", "destination" : "Boston", "trainType" : "Express"}, {"departureTime" : "05:19", "destination" : "Portland", "trainType" : "Rapid"}, {"departureTime" : "05:29", "destination" : "Boston", "trainType" : "Express""} ], "station" : "Grand Central", "direction" : "North" }, { "schedule" : [ {"departureTime" : "05:11","destination" : "Washington, "trainType" : "Express""}, {"departureTime" : "05:23","destination" : "Baltimore, "trainType" : "Express""}, {"departureTime" : "05:35","destination" : "Richmond, "trainType" : "Local""} ], "station" : "Grand Central", "direction" : "South" } ]

现在，如何通过SwiftyJSON或不通过字典(departureTime，destination ...)保存时间表数组?

Now, how can I save the schedule array with a dictionary (departureTime, destination...) through or not through SwiftyJSON?

谢谢.

更新

以下是我自己的解决方案.

The following is my own solution.

import Alamofire import SwiftyJSON class ViewController: UIViewController { var scheduleArray = [Dictionary<String,String>]() override func viewDidLoad() { super.viewDidLoad() Alamofire.request(.GET, "api.mynexttrainschedule/") .responseJSON { response in guard let object = response.result.value else { print("Oh, no!!!") return } let json = JSON(object) if let jArray = json.array { if let westHolidayArray = jArray[0]["schedule"].array { for train in westHolidayArray { if let time = train["departureTime"].string, let dest = train["destination"].string, let type = train["trainType"].string { let dict = ["time":time, "dest":dest, "type": type] self.scheduleArray.append(d) } } } } } } }

推荐答案

首先，您应该像这样创建一个类，作为Schedule的模型

First of all you should create a class that is your model of Schedule like this

class Schedule: NSObject { var departureTime: String var destination: String var trainType: String init(jsonDic : NSDictionary) { self.departureTime = jsonDic["departureTime"] != nil ? jsonDic["departureTime"] as! String! : nil self.destination = jsonDic["destination"] != nil ? jsonDic["destination"] as! String! : nil self.trainType = jsonDic["trainType"] != nil ? jsonDic["trainType"] as! String : nil } }

在您的视图控制器中，您将需要一个Schedule对象的数组，并且您可以在解析您的Json之后执行以下操作:

And in your view controller your going to need an array of the Schedule object and after you could parse your Json you do it like this:

class ScheduleController: UIViewController { // The two object use to show the spinner loading var loadingView: UIView = UIView() var spinner = UIActivityIndicatorView(activityIndicatorStyle: .whiteLarge) // Array of your objects var arrSchedule: [Schedule] = [] override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. self.getInfoSchedule() } func getInfoSchedule() { showActivityIndicator() Alamofire.request("api.mynexttrainschedule/", method: .get, parameters: nil, encoding: URLEncoding.default, headers: nil).responseJSON { response in self.hideActivityIndicator() switch response.result { case .success: if let objJson = response.result.value as! NSArray? { for element in objJson { let data = element as! NSDictionary if let arraySchedule = data["schedule"] as! NSArray? { for objSchedule in arraySchedule { self.arrSchedule.append(Schedule(jsonDic: objSchedule as! NSDictionary)) } } } } case .failure(let error): print("Error: \(error)") } } } //Those two method serves to show a spinner when the request is in execution func showActivityIndicator() { DispatchQueue.main.async { self.loadingView = UIView() self.loadingView.frame = CGRect(x: 0.0, y: 0.0, width: self.view.frame.width, height: self.view.frame.height) self.loadingView.center = self.view.center self.loadingView.backgroundColor = UIColor(rgba: "#111111") self.loadingView.alpha = 0.9 self.loadingView.clipsToBounds = true self.spinner = UIActivityIndicatorView(activityIndicatorStyle: .whiteLarge) self.spinner.frame = CGRect(x: 0.0, y: 0.0, width: 80.0, height: 80.0) self.spinner.center = CGPoint(x:self.loadingView.bounds.size.width / 2, y:self.loadingView.bounds.size.height / 2) self.loadingView.addSubview(self.spinner) self.view.addSubview(self.loadingView) self.spinner.startAnimating() } } func hideActivityIndicator() { DispatchQueue.main.async { self.spinner.stopAnimating() self.loadingView.removeFromSuperview() } } }

也许这不是更有效的方法，但是它对我有用.我在xcode 8.1上使用swift3.

Maybe is not the more efficient way to do it, but it worked for me. I'm using swift3 with xcode 8.1.

希望有帮助！