将JSON NSData转换为字典

Question

我有一个像这样的JSON文件。

{   
"Team Name" : "Team",
"Images" : "images",
"Players" : [
    {
        "Number" : "61",
        "Height" : "6'5\"",
        "Position" : "P",
        "DOB" : "Feb 22, 1989",
        "First Name" : "Chris",
        "Weight" : "210",
        "Last Name" : "Shmoe",
        "Bats" : "R",
        "Throws" : "R"
    },
    {
        "Number" : "54",
        "Height" : "6'3\"",
        "Position" : "P",
        "DOB" : "Dec 31, 1982",
        "First Name" : "Ronald",
        "Weight" : "240",
        "Last Name" : "Peter",
        "Bats" : "R",
        "Throws" : "R"
    },
    {
        "Number" : "67",
        "Height" : "6'4\"",
        "Position" : "P",
        "DOB" : "Sep 24, 1984",
        "First Name" : "Scott",
        "Weight" : "215",
        "Last Name" : "Tim",
        "Bats" : "R",
        "Throws" : "R"
    },

Heres我有什么

  var downloadFailed = false
    var error: NSError? = nil

    let navigationController = self.window!.rootViewController as! UINavigationController
    let masterController = navigationController.childViewControllers[0] as! PlayerViewController

    if let url = NSURL(string: " ") {

        if let urlData = NSData(contentsOfURL: url) {
            let jsonString = NSString(data: urlData, encoding: NSUTF8StringEncoding)
            println(jsonString)
            var result = NSJSONSerialization.JSONObjectWithData(urlData, options: NSJSONReadingOptions.allZeros, error: nil) as? NSDictionary

            print("dictionary created")
            if let players = result?.objectForKey("Players") as? [[String:AnyObject]]
            {

                for dictionary in players{

                    let fname = players["First Name"]
                    let lname = array["Players"]?["Last Name": String]
                    let number = array["Players"]?["Number"]
                    let position = array["Players"]?["Position"]
                    let bats = array["Players"]?["Bats"]?!.string
                    let throws = array["Players"]?["Throws"]?!.string
                    let height = array["Players"]?["Height"]?!.string
                    let weight = array["Players"]?["Weight"]?!.string
                    let DOB = array["Players"]?["DOB"]?!.string


                   masterController.objects.append(Players(fName: (fname as String?)!, lname: (lname as String?)!, position: (position as String?)!, bats: (bats as String?)!, throws: (throws as String?)!, height: (height as String?)!, weight: (weight as String?)!, DOB: (DOB as String?)!, number: (number as String?)!))}

目前我认为唯一不正确的是我不知道如何正确读取代码，以便它使用密钥“Players”并从JSON文件中读取正确的信息。

编辑：

我一直在努力研究它现在已经得到了这个我很少有错误就是没有继续崩溃

 if let dict = array as? [String: AnyObject]

但是我的负载数据功能的新代码

 func preloadData() {


        var downloadFailed = false
        var error: NSError? = nil

        let navigationController = self.window!.rootViewController as! UINavigationController
        let masterController = navigationController.childViewControllers[0] as! PlayerViewController

        if let url = NSURL(string: "removed for reasons") {

            if let urlData = NSData(contentsOfURL: url) {

                if let array: AnyObject! = NSJSONSerialization.JSONObjectWithData(urlData, options: nil, error: &error)
                {
                    print (array)
                    if let dict = array as? [String: AnyObject]
                    {
                    if let players = dict["Players"] as? [AnyObject]
                    {
                    for dictionary in players {
                    let fname = dictionary["First Name"]
                    let lname = dictionary["Last Name"]
                    let number = dictionary["Number"]
                    let position = dictionary["Position"]
                    let bats = dictionary["Bats"]
                    let throws = dictionary["Throws"]
                    let height = dictionary["Height"]
                    let weight = dictionary["Weight"]
                    let DOB = dictionary["DOB"]


                   masterController.objects.append(Players(fName: fname as! String, lname: lname as! String, position: position as! String, bats: bats as! String, throws: throws as! String, height: height as! String, weight: weight as! String, DOB: DOB as! String, number: number as! String))
                        }
                        }
                }

                //masterController.objects.sort({$0.courseNumber < $1.courseNumber})
            }
            else
            {
                downloadFailed = true
            }
        } else {
            downloadFailed = true
        }
    } else {
        downloadFailed = true
    }

    if downloadFailed {
        let alert = UIAlertView(title: "Error", message: "Unable to download course data", delegate: nil, cancelButtonTitle: "OK")
        alert.show()
    }
}