NSURL 到 NSDATA 或数据始终为零 [英] NSURL to NSDATA or Data is always nil

问题描述

我正在尝试通过 Alamofire 将视频上传到服务器文件，但我无法传递数据"......它始终为零

I am trying to upload a video to a server file through Alamofire but I couldn't get the "data" going to be passed..its always nil

    var videoURL = NSURL(string: "")
   //returns Optional(file:///private/var/mobile/Containers/Data/Application/1FB40086-228B-4011-A9D4-7874E2EEF9F4/tmp/4A6AAD76-B899-4B67-8E96-925DA4AE9E93.mov)


    let videodata =  NSData(contentsOfFile: (videoURL?.absoluteString)!)
    //nil  
    let url = NSURL(fileURLWithPath: (videoURL?.absoluteString)!)

    let videodata = NSData(contentsOf: url as URL)
    //nil

如果我得到数据会引导我这样做:

If I get data would lead a way for me to do this:

 Alamofire.upload(multipartFormData: { multipartFormData in
                multipartFormData.append (videodata as! Data, withName: "file", fileName: "file.mov", mimeType: "video/quicktime")
enter code here

:

谢谢你们，在你们的帮助下，我一直在努力摆脱这个文件未找到错误，但我可以看到文件正在保存在我的画廊中，任何线索都可以挽救我的一天.

thank you guys, with your help I have struggled my way out of there to this file not found error, but I can see the file is being saved in my gallery, any clue would save my day.

      print (videoURL!)
//returns file:///private/var/mobile/Containers/Data/Application/3F280477-DA16-4A67-AE60-D6247143352E/tmp/1E4AC002-6AD0-41E1-9E0D-A09B697F81F7.mov


       print (videoURL!.path!)
      // returns /private/var/mobile/Containers/Data/Application/3F280477-DA16-4A67-AE60-D6247143352E/tmp/1E4AC002-6AD0-41E1-9E0D-A09B697F81F7.mov


        var videoData = NSData()

        let path = videoURL!.path!
        if FileManager.default.fileExists(atPath: path) {

        }else {
               print("Could not fin file at url: \(videoURL!.path!)")
             // here it throws file not found
        }

推荐答案

在 Swift 3 中使用原生 URL 和 Data 而不是 NSURL 和NSData.

In Swift 3 use native URL and Data instead of NSURL and NSData.

if let videoURL = URL(string: urlString), let videodata = try? Data(contentsOf: videoURL) {
     //Add code of Alamofire here
}

这篇关于NSURL 到 NSDATA 或数据始终为零的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！