请解决我的错误并告诉我为什么我收到此错误

Question

我不知道我的错误在哪里我尝试使用JSON数据解析通过Web服务解析数据

import UIKit

class ViewController: UIViewController {

override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a nib.



    let url = NSURL(string: "http://pokeapi.co/api/v2/pokemon/1/")
    let request = NSURLRequest(URL: url!)
    let config =NSURLSessionConfiguration.defaultSessionConfiguration()
    let session = NSURLSession(configuration: config)

        let task =  session.dataTaskWithRequest(request, completionHandler: { (data:NSData?, response:NSURLResponse?, error:NSError?) in

        if error==nil {

            let post: NSDictionary

            if let responsedata = data{

                do{
                post = try NSJSONSerialization.dataWithJSONObject(responsedata, options: []) as! NSDictionary
                }
                catch(post){
                    print ("error inserialization")
                }

            }

        }
    })
    task.resume()

}
}

image

Answer 1

尝试使用以下代码

    let url = NSURL(string: "http://pokeapi.co/api/v2/pokemon/1/")
    let request = NSURLRequest(URL: url!)
    let config = NSURLSessionConfiguration.defaultSessionConfiguration()
    let session = NSURLSession(configuration: config)

    let task = session.dataTaskWithRequest(request) { (data, response, error) -> Void in

        if(error == nil)
        {
            let err : NSError! = nil
            do
            {
                let json = try NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.AllowFragments)
                print(json)

            }
            catch{

                print(err)

            }
        }
        else
        {
            print(error?.description)
        }
    }
    task.resume()

希望这会对你有所帮助。