JSON 查询无效

Question

我的 swift 应用中有 JSON 数据。我想创建一个查询，但数组返回为 nil。下面是我的代码：

import UIKit

class ViewController: UIViewController {

@IBOutlet weak var RandomQuoteLabel: UITextField!

var bytes: NSMutableData?

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.
    let request = NSURLRequest(URL: NSURL(string: "https://www.kimonolabs.com/api/1vldybe0?apikey=iFotcJDm95fB6Ua7XiZRDZA0jl3uYWuc")!)
    let loader = NSURLConnection(request: request, delegate: self, startImmediately: true)
}

    func connection(connection: NSURLConnection!, didReceiveData conData: NSData!) {
            self.bytes?.appendData(conData)
    }

    func connection(didReceiveResponse: NSURLConnection!, didReceiveResponse response: NSURLResponse!) {
            self.bytes = NSMutableData()
}

        func connectionDidFinishLoading(connection: NSURLConnection!) {
            let jsonresult:NSDictionary = NSJSONSerialization.JSONObjectWithData(self.bytes!, options: nil, error: nil) as NSDictionary
            println(jsonresult)

//This is where the app crashes
            let results: NSArray = jsonresult["collection1"] as NSArray
            println(results)
            for item in results {
                var quote:String = item["quote"] as String
                println("\(quote)")
            }
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}



}

为什么查询不起作用。欢迎所有建议。

Answer 1

根据 larme 的建议，通过以下更改更正您的代码。

let results: NSDictionary = jsonresult["results"] as NSDictionary

let collection1: NSArray = results["collection1"] as NSArray

println(collection1)
for item in collection1 {
    var quote:String = item["quote"] as String
    println("\(quote)")
}

JSON 查询无效

JSON query not working

xcode

parsing

json

ios

swift