Question

代码完美无缺。问题是，在尝试了一段时间之后，我无法弄清楚如何使我的程序处理成为不同JSON数据的第二个链接。

这是我的viewDidLoad，其中一切都在继续：

override func viewDidLoad() {
    super.viewDidLoad()

        var err: NSError?
        let urlPath: String = "https://na.api.pvp.net/api/lol/na/v1.4/summoner/by-name/" + searchFieldDataPassed + "?api_key=(removed my private api key for obvious reasons"
        var url: NSURL = NSURL(string: urlPath)!
        let session = NSURLSession.sharedSession()
        let task = session.dataTaskWithURL(url) { data, response, error in

            // cast response as NSHTTPURLResponse and switch on statusCode if you like
            if let httpResponse = response as? NSHTTPURLResponse { switch httpResponse.statusCode { case 200..<300: println("OK") default: println("Not OK") } }

            // parse JSON using NSJSONSerialization if you've got data
            if let jsonResult = NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers, error: &err) as? NSDictionary,
            let include = jsonResult.objectForKey(self.searchFieldDataPassed) as? NSDictionary {

                    if let summLevel = include[ "summonerLevel" ] as? NSNumber {

                        dispatch_async(dispatch_get_main_queue()) {

                            self.summonerLevel.text = "\(summLevel.integerValue)"
                            println("summoner level: \(summLevel.integerValue)")

                        }
                    }

                    if let profIconId = include[ "profileIconId" ] as? NSNumber {

                        dispatch_async(dispatch_get_main_queue()) {

                            self.profileIconId.text = "\(profIconId.integerValue)"
                            println("profile icon id: \(profIconId.integerValue)")

                        }
                    }

                    if let idNum = include [ "id" ] as? NSNumber {

                        dispatch_async(dispatch_get_main_queue()) {

                            self.idNumber = idNum
                            println("id number: \(self.idNumber)")

                        }
                }
            }


        // spawn off another network call here if you like
    }
    task.resume()  
}

这是来自我的secondViewController，其中所有处理都继续为JSON然后显示。

这是我正在处理的JSON数据（用于第一次JSON解析）：

{"soon2challenger":{"id":43993167,"name":"soon2challenger","profileIconId":844,"summonerLevel":30,"revisionDate":1435549418000}}

所有这一切都运行正常，现在，我想要处理这个JSON数据，它实际上从第一个解析的JSON数据获取id并在链接中使用它来处理更多数据，我想输出，部分数据，到屏幕。

第二个JSON数据：

{"summonerId":43993167,"playerStatSummaries":[{"playerStatSummaryType":"AramUnranked5x5","wins":25,"modifyDate":1423007927000,"aggregatedStats":{"totalChampionKills":676,"totalTurretsKilled":20,"totalAssists":991}},{"playerStatSummaryType":"CAP5x5","wins":15,"modifyDate":1429065922000,"aggregatedStats":{"totalChampionKills":312,"totalMinionKills":4885,"totalTurretsKilled":31,"totalNeutralMinionsKilled":511,"totalAssists":216}},{"playerStatSummaryType":"CoopVsAI","wins":28,"modifyDate":1421882181000,"aggregatedStats":{"totalChampionKills":266,"totalMinionKills":2802,"totalTurretsKilled":50,"totalNeutralMinionsKilled":385,"totalAssists":164,"maxChampionsKilled":0,"averageNodeCapture":0,"averageNodeNeutralize":0,"averageTeamObjective":0,"averageTotalPlayerScore":49,"averageCombatPlayerScore":0,"averageObjectivePlayerScore":49,"averageNodeCaptureAssist":0,"averageNodeNeutralizeAssist":0,"maxNodeCapture":0,"maxNodeNeutralize":0,"maxTeamObjective":0,"maxTotalPlayerScore":49,"maxCombatPlayerScore":0,"maxObjectivePlayerScore":49,"maxNodeCaptureAssist":0,"maxNodeNeutralizeAssist":0,"totalNodeNeutralize":0,"totalNodeCapture":0,"averageChampionsKilled":0,"averageNumDeaths":0,"averageAssists":0,"maxAssists":0}},{"playerStatSummaryType":"CoopVsAI3x3","wins":15,"modifyDate":1421882181000,"aggregatedStats":{"totalChampionKills":140,"totalMinionKills":1114,"totalTurretsKilled":9,"totalNeutralMinionsKilled":449,"totalAssists":91}},{"playerStatSummaryType":"OdinUnranked","wins":1,"modifyDate":1421882181000,"aggregatedStats":{"totalChampionKills":31,"totalAssists":45,"maxChampionsKilled":10,"averageNodeCapture":4,"averageNodeNeutralize":4,"averageTeamObjective":0,"averageTotalPlayerScore":843,"averageCombatPlayerScore":268,"averageObjectivePlayerScore":575,"averageNodeCaptureAssist":3,"averageNodeNeutralizeAssist":1,"maxNodeCapture":6,"maxNodeNeutralize":7,"maxTeamObjective":2,"maxTotalPlayerScore":1468,"maxCombatPlayerScore":529,"maxObjectivePlayerScore":939,"maxNodeCaptureAssist":5,"maxNodeNeutralizeAssist":2,"totalNodeNeutralize":22,"totalNodeCapture":25,"averageChampionsKilled":5,"averageNumDeaths":5,"averageAssists":8,"maxAssists":19}},{"playerStatSummaryType":"RankedSolo5x5","wins":116,"losses":120,"modifyDate":1433630047000,"aggregatedStats":{"totalChampionKills":1699,"totalMinionKills":33431,"totalTurretsKilled":219,"totalNeutralMinionsKilled":6501,"totalAssists":1969}},{"playerStatSummaryType":"RankedTeam3x3","wins":0,"losses":0,"modifyDate":1377726216000,"aggregatedStats":{}},{"playerStatSummaryType":"RankedTeam5x5","wins":3,"losses":0,"modifyDate":1383784473000,"aggregatedStats":{"totalChampionKills":28,"totalMinionKills":636,"totalTurretsKilled":6,"totalNeutralMinionsKilled":101,"totalAssists":41}},{"playerStatSummaryType":"Unranked3x3","wins":9,"modifyDate":1421882181000,"aggregatedStats":{"totalChampionKills":90,"totalMinionKills":1427,"totalTurretsKilled":11,"totalNeutralMinionsKilled":428,"totalAssists":105}},{"playerStatSummaryType":"URF","wins":4,"modifyDate":1435024847000,"aggregatedStats":{"totalChampionKills":68,"totalMinionKills":642,"totalTurretsKilled":14,"totalNeutralMinionsKilled":182,"totalAssists":55}},{"playerStatSummaryType":"Unranked","wins":566,"modifyDate":1435549418000,"aggregatedStats":{"totalChampionKills":8419,"totalMinionKills":128213,"totalTurretsKilled":960,"totalNeutralMinionsKilled":26117,"totalAssists":7812}}]}

下面是我要解析的第二个JSON数据的链接（只是添加它，可能很有用，但不确定）： https://na.api.pvp.net/api/lol/na/v1.3/stats/by-summoner/43993167/summary?season=SEASON2015&api_key=(took-out-my-private-api-key-for-obvious-reasons)

链接不起作用，因为我必须保持我的api密钥对我自己，但它显示的JSON数据就在链接的正上方，这就是你使用链接时会产生的结果。 api key。

重申一下，我想处理JSON数据的第二部分（上面），但我不明白如何处理JSON的多个链接。我解析了第一个JSON数据，但无法解析第二个JSON数据。

Answer 1

我相信Apple正在弃用NSURLConnection。看看NSURLSession。使用它，您可以传入一个包含三个参数的完成块：NSData?，NSURLResponse?和NSError?。数据对象包含可以传递到JSON序列化程序的JSON。之后，如果您需要进行另一次网络调用，只需使用另一个NSURLSession数据任务从完成块内部调用它。 Alamofire是一个很棒的框架，但有时你并不需要它提供的所有内容，它会增加你的应用程序的复杂性，如果出现问题或没有按照你的意图/理解的方式行事，你可能无法完全理解为什么。如果您想保持简单并且在您的控制之下，请使用NSURLSession。

let session = NSURLSession.sharedSession()
let task = session.dataTaskWithURL(url) { data, response, error in
    // cast response as NSHTTPURLResponse and switch on statusCode if you like
    // parse JSON using NSJSONSerialization if you've got data
    // spawn off another network call here if you like
}
task.resume() // or in Swift 2, task?.resume()

Answer 2

首先，我完全更喜欢为http请求使用一些常见的框架 - 特别是如果你是swift的新手。例如，这里有alamofire。

https://github.com/Alamofire/Alamofire

还有一个集成了SwiftyJSON的版本，因此您可以非常轻松地解析JSON响应。

https://github.com/SwiftyJSON/Alamofire-SwiftyJSON

因此，如果您想提出请求，请使用：

Alamofire.request(.GET, "http://httpbin.org/get")
         .responseJSON { (_, _, json, _) in
                  var json = JSON(json)

                  // get the id out (depends on your structure of JSON):  
                  let id = json["id"].int
         }

现在您可以执行第二个请求（使用相同的代码） - 阅读文档，如何进行不同的请求（如使用POST）并添加参数。

如果你想使用Segues，所以你想在另一个ViewController中从ID加载更多数据，你可以使用Segues将数据推送到第二个ViewController，并在新的ViewController初始化时从JSON加载新内容

看看这个如何通过segues发送数据：

Sending data with Segue with Swift

如何处理JSON数据的多个链接？

2 个答案: