斯威夫特Json错误

Question

我试图从和服拉数据我遇到了错误。我的和服API的链接= https://www.kimonolabs.com/api/8dfvxr3a?apikey=5747a54d5ca762895b474cc224943240

和Xcode的错误是

"thread 3: EXC_BREAKPOINT(code=EXC_1386_BPT,subcode0x0)"

如何解决这个问题？

import UIKit 

class ViewController: UIViewController { 

@IBOutlet weak var countLabel: UILabel! 



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

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

@IBOutlet weak var ara: UITextField! 
@IBAction func getir(sender: AnyObject) { 

    araIMDB() 
} 

func araIMDB(){ 

     var urlYol = NSURL(string: "http://www.kimonolabs.com/api/8dfvxr3a?apikey=5747a54d5ca762895b474cc224943240") 
     var oturum = NSURLSession.sharedSession() 
     var task = oturum.dataTaskWithURL(urlYol!){ 

      data, response, error -> Void in 
      if (error != nil){ 

       println(error) 

      } 
      var jsonError : NSError? 
      var jsonSonuc = NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers, error: &jsonError) as Dictionary<String, String> 
      if(jsonError != nil) 
      { 
       println(jsonError) 
      } 
      dispatch_async(dispatch_get_main_queue()){ 
       self.titleLabel.text = jsonSonuc["count"] 
      } 
      } 
     task.resume() 
    } 

Answer 1

在as Dictionary<String, String>处抛出异常，因为您的JSON不是扁平字典。在你的情况下，你应该使用optional form of the type cast operator (as?)将它投射到NSDictionary或Dictionary<String,AnyObject>。您不需要NSJSONReadingOptions.MutableContainers，因为您只能从结果中读取。

jsonSonuc["count"]是整数值，而不是字符串。您应该使用as? Int将其转换为Int，然后将其转换为String。

尝试：

 var jsonError: NSError? 
     var jsonSonuc = NSJSONSerialization.JSONObjectWithData(data, options: .allZeros, error: &jsonError) as? NSDictionary 
     if(jsonError != nil) { 
      println(jsonError) 
     } 
     else if let count = jsonSonuc?["count"] as? Int { 
      dispatch_async(dispatch_get_main_queue()){ 
       self.titleLabel.text = String(count) 
      } 
     }