Question

我在网址上返回了JSON文件：http://tvshowapi.azurewebsites.net/tvshownewsfeed

我需要能够解析json并将所有电视剧列在一个类别下。

我按照教程找到了几个解决方案但无法获取json数据并解析它。

这是我所遵循的教程的快速代码，我想同样将我的JSON文件解析为单个类别。

class AppCategory: NSObject{
var name: String?
var apps: [App]?
var type: String?    
static func fetchFeaturedApps() {

let urlString = "http://www.statsallday.com/appstore/featured"

    URLSession.shared.dataTask(with: URL(string: urlString)!, completionHandler: { (data, response, error) ->Void in

        if error != nil {
            print(error)
            return
        }
        do {

            let json = try(JSONSerialization.jsonObject(with: data!, options: .mutableContainers)) as! [String: AnyObject]

            var appCategories = [AppCategory]()

             for dict in json["categories"] as! [[String: AnyObject]] {
                    let appCategory = AppCategory()
                    appCategory.setValuesForKeys(dict)
                    appCategories.append(appCategory)
            }

            print(appCategories)

        } catch let err {
            print(err)
        }

    }) .resume()
}
}

Answer 1

下面的代码将解析json中的所有屏幕名称并将其放入一个类别。

func callApi(){

        let url = NSURL(string: "http://tvshowapi.azurewebsites.net/tvshownewsfeed")

        let request = NSURLRequest(url: url as! URL)

        let task = URLSession.shared.dataTask(with: request as URLRequest) { (dataRecived, response, error) in

            guard error == nil else{
            return

            }

            guard dataRecived != nil else{

            return
            }

            do{

                let jsonData  = try JSONSerialization.jsonObject(with: dataRecived!, options: .mutableContainers) as! [AnyObject]

                var collectScreenName  = [String]()

                for item in jsonData{
                collectScreenName.append(item["screenName"] as! String)

                }

                let listOfScreen = ["category":collectScreenName]
                print(listOfScreen)


            }
            catch let error{

            print(error)

            }

        }

        task.resume()

    }

Swift 3 - 解析JSON文件中的值

1 个答案: