将writeToFile始终返回false

我想写的内容到一个文件中迅速将writeToFile始终返回false

let jsonResult = try! NSJSONSerialization.JSONObjectWithData(response.data, options: NSJSONReadingOptions.MutableContainers) as! NSDictionary 

let fileManager = NSFileManager.defaultManager() 
let urls = fileManager.URLsForDirectory(.DocumentDirectory, inDomains: .UserDomainMask) 

let documentDirectory = urls.first!.path 
let path = NSURL(fileURLWithPath: documentDirectory!).URLByAppendingPathComponent("data.txt") 
let dict = jsonResult as NSDictionary 
let status = dict.writeToFile(path.path!, atomically: false) 
print(status)

，但内容不会写入文件和状态永远是假的

来源

2016-03-07 jithin

斯威夫特2

 let file = "file.txt" //this is the file. we will write to and read from it 

     let jsonResult : NSMutableDictionary = NSMutableDictionary.init(object: "08:00:00", forKey: "start_hour"); 
     jsonResult.setValue("10:00:00", forKey: "end_hour"); 
     jsonResult.setValue("30", forKey: "call_duration"); 

     let dict = jsonResult as NSDictionary 

     if let dir : NSString = NSSearchPathForDirectoriesInDomains(NSSearchPathDirectory.DocumentDirectory, NSSearchPathDomainMask.AllDomainsMask, true).first { 
      let path = NSURL(fileURLWithPath: dir as String).URLByAppendingPathComponent(file); 

      //writing 
      dict.writeToFile(path.path!, atomically: false) 

      var contents : NSString 
      //reading 
      do { 
       contents = try NSString(contentsOfFile: path.path!, encoding: NSUTF8StringEncoding) 
      } 
      catch { 
       /* error handling here */ 
       contents = "" 
      } 
      print(contents as String); 
     }

如果您已经在捆绑文件，请使用如下代码找到路径和读取文件。

let path = NSBundle.mainBundle().pathForResource("sample-text", ofType: "txt") 

    let contents: NSString 
    do { 
     contents = try NSString(contentsOfFile: path!, encoding: NSUTF8StringEncoding) 
    } catch _ { 
     contents = "" 
    }

解析Web服务响应：

 // responseData - API response data. 

     // parse the result as JSON, since that's what the API provides 
     let getConfig: NSDictionary 
     do { 
      getConfig = try NSJSONSerialization.JSONObjectWithData(responseData, options: NSJSONReadingOptions()) as! NSDictionary 
     } catch { 
      print("error trying to convert data to JSON") 
     }

来源

2016-03-07 06:13:14

stringByAppendingPathComponent不会在Xcode 7工作（不推荐）。其中就是为什么我使用URLByAppendingPathComponent。 – jithin

我正在使用xcode 7.1。我没有被弃用的问题。不过，我已经更新了代码。 –

你有没有测试上面的例子？它是否解决了你的问题@jithin？ –

你不能写你的应用程序包。相反，请尝试写入您的应用程序的文档目录。看到这个问题：Write a file on iOS

来源

2016-03-07 05:36:46

@Aron Wojnowski我试过first.Please看到我的修改quetion – jithin

将writeToFile始终返回false

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