How to use swiftyjson to parse json data to foundation object and loop through data

问题

So I'm trying to get his raw json data and use it to ultimately be viewed in a table(so one table cell would be --> Emirates - $1588.77)

Problem: Having trouble parsing the JSON data.. alamofire apparently does it automatically? but im completely confused with the data types. I keep getting weird errors like 'doesnt have a member named subscript" (I've also got swiftyjson installed but aa non-swiftyjson solution should work as well.

Code:

    request(qpxRequest).responseJSON { (request, response, json, error) -> Void in
        if response != nil {
           //println(response!)
        }
        if json != nil {


          // 1. parse the JSON data into a Foundation object
         // 2. Grab the data from the foundation object (so its can be looped though      in a table)

}

---

{
trips =     {
    data =         {
        carrier =             (
                            {
                name = "Cathay Pacific Airways Ltd.";
            },
                            {
                name = Emirates;
            },
                            {
                name = "Ethiopian Airlines Enterprise";
            },
                            {
                name = "Qantas Airways Ltd.";
            },
                            {
                name = "South African Airways";
            }
        );
    };
    tripOption =         (
                    {
            saleTotal = "AUD1537.22";
        },
                    {
            saleTotal = "AUD1588.77";
        },
                    {
            saleTotal = "AUD1857.42";
        },
                    {
            saleTotal = "AUD1857.42";
        },
                    {
            saleTotal = "AUD1922.42";
        }
    );
};

}

---

-------- Edit.

---

Using this model.

class FlightDataModel {
    var carrier: String
    var price: String

    init(carrier: String?, price: String?) {
        self.carrier = carrier! 
        self.price = price!
    }
}

How woudl I use your solution to add it to an array of FlightDataModel class

This my my attempt..

var arrayOfFlights : [FlightDataModel] = [FlightDataModel]()



 if let tripOptions = trips["tripOption"] as? [[String:AnyObject]] {
                        for (index, tripOption) in enumerate(tripOptions) {
                            //println("\(index): " + (tripOption["saleTotal"]! as String))

                            self.arrayOfFlights[index].carrier = tripOption["saleTotal"]! as String


                            println("\(self.arrayOfFlights[index].carrier)")
                        }

回答1:

Alamofire can do it, but you have to dig into your JSON structure. :)

Like this, using Alamofire's responseJSON method:

    Alamofire.request(.GET, YOUR_URL, parameters: nil, encoding: .URL).responseJSON(options: NSJSONReadingOptions.allZeros) { (request, response, json, error) -> Void in
        if let myJSON = json as? [String:AnyObject] {
            if let trips = myJSON["trips"] as? [String:AnyObject] {
                if let data = trips["data"] as? [String:AnyObject] {
                    if let carriers = data["carrier"] as? [[String:String]] {
                        for (index, carrierName) in enumerate(carriers) {
                            println("\(index): " + carrierName["name"]!)
                        }
                    }
                }
                if let tripOptions = trips["tripOption"] as? [[String:AnyObject]] {
                    for (index, tripOption) in enumerate(tripOptions) {
                        println("\(index): " + (tripOption["saleTotal"]! as! String))
                    }
                }
            }
        }
    }

Output:

0: Cathay Pacific Airways Ltd.
1: Emirates
...
0: AUD1537.22
1: AUD1588.77
...

It's a bit easier with SwiftyJSON indeed. And for diversity's sake, we'll use Alamofire's responseString method this time:

    Alamofire.request(.GET, YOUR_URL, parameters: nil, encoding: .URL).responseString(encoding: NSUTF8StringEncoding, completionHandler: {(request: NSURLRequest, response: NSHTTPURLResponse?, responseBody: String?, error: NSError?) -> Void in

        if let dataFromString = responseBody!.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false) {
            let json = JSON(data: dataFromString)
            let carriers = json["trips"]["data"]["carrier"].array
            for (index, carrier) in enumerate(carriers!) {
                println("\(index):" + carrier["name"].string!)
            }
            let tripOption = json["trips"]["tripOption"].array
            for (index, option) in enumerate(tripOption!) {
                println("\(index):" + option["saleTotal"].string!)
            }
        }

    })

Output:

0: Cathay Pacific Airways Ltd.
1: Emirates
...
0: AUD1537.22
1: AUD1588.77
...

Note: I've used enumerate as an example for how getting the index of the content at the same time you get the content.

来源：https://stackoverflow.com/questions/30123657/how-to-use-swiftyjson-to-parse-json-data-to-foundation-object-and-loop-through-d