JSONを読む(Array編)

こんな感じのJSONを読みます

{{"midashi":
[{"hoge":"1", "imageurl":"htt://www.hoge.com/uri01.png"},
 {"hoge":"2", "imageurl":"htt://www.hoge.com/uri02.png"},
 {"hoge":"3", "imageurl":"htt://www.hoge.com/uri03.png"}]
}

// NSUrlSessionの取得ハンドラ
    func onFinishGetUri(data: NSData?, res: NSURLResponse?, error: NSError?){
        var dict:NSDictionary
        do{
            dict = try NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers) as! NSDictionary
            let imageList = dict["midashi"] as! NSArray
           
            for image in imageList{
                let url = image["imageurl"] as! String
                print(url)
                getList.append(url)  // 詰め直してみる
            }
            // index0のurlを取得
            print(getList[0])           
        } catch {
            print("error")
            return
        }
    }