ios - 如何使用 swift 将文件 Doc/pdf/excel 从 iphone 设备上传到后端？

Question

我需要从 iPhone 获取可能是 doc/pdf/excel 文件的附件，然后发送到后端
请指导是否有人知道如何执行此操作
让我告诉你我还做了什么
1.我一直在使用 UIDocumentPickerViewController

下面的函数打开iCloud

函数点击函数(){

 let options = [kUTTypePDF as String, kUTTypeZipArchive  as String, kUTTypePNG as String, kUTTypeJPEG as String, kUTTypeText  as String, kUTTypePlainText as String]

     let documentPicker: UIDocumentPickerViewController = UIDocumentPickerViewController(documentTypes: options, in: .import)

    documentPicker.delegate = self

    documentPicker.modalPresentationStyle = .formSheet

    self.present(documentPicker, animated: true, completion: nil)
}

3.这些是委托(delegate)方法
公共(public) func documentPicker(_ Controller : UIDocumentPickerViewController,
didPickDocumentsAt urls: [URL]) {

    guard let myURL = urls.first else {
        return
    }

    print("import result : \(myURL)")
}



public func documentMenu(_ documentMenu:UIDocumentMenuViewController, didPickDocumentPicker documentPicker: UIDocumentPickerViewController) {
    documentPicker.delegate = self
    present(documentPicker, animated: true, completion: nil)
}





func documentPickerWasCancelled(_ controller: UIDocumentPickerViewController) {
    print("view was cancelled")
    dismiss(animated: true, completion: nil)
}

从上面的代码中，我在从 icloud 中选择任何文件后得到了 url，我有点困惑我应该用那个 url 做什么
像:- file:///private/var/mobile/Containers/Data/Application/8F334336-525D-46F7-BF60-79FC6A45601A/tmp/com.Empro.WorkToday-Inbox/AbhishekSharma-MCA-1.pdf

Answer 1

选择文件后，您必须将其上传到 Moya，这是一个非常好的网络层，可以将图像/文档等文件上传到服务器

 let keyValue = "doc[0]"
   
var multipartData = [MultipartFormData]()



if(docTypes == .isTypePDF)
    {
        multipartData.append(Moya.MultipartFormData(provider: .data(documentData!), name: keyValue, fileName: "file.pdf", mimeType: "application/pdf"))
    }
    else
    {
        multipartData.append(Moya.MultipartFormData(provider: .data(documentData!), name: keyValue, fileName: "file.doc", mimeType: "application/doc"))
    }

当在此委托(delegate)下选择文档时，您需要将其转换为数据

func documentPicker(_ controller: UIDocumentPickerViewController, didPickDocumentsAt urls: [URL]) {
        
        if(urls.count > 0)
        {
            do
            {
                let imageExtensions = ["pdf", "rtf", "docx", "doc"]

                for i in 0..<urls.count
                {
                    let urlvalue = urls[i]
                   
                    let pathExtention = urlvalue.pathExtension
                    if imageExtensions.contains(pathExtention)
                    {
                        print("Image URL: \(urlvalue)")
                        
                        if(pathExtention == "pdf")
                        {
                            self.doctype = .isTypePDF
                        }
                        else
                        {
                            self.doctype = .isTypeDoc
                        }
                        
                        // Do something with it
                    }else
                    {
                       print("Movie URL: \(urlvalue)")
                    }
                    
                    let fileName = urlvalue.lastPathComponent

                    let imgData1 = try Data.init(contentsOf: urlvalue)
                    print("testing")
                    
                    self.documentData = imgData1
                    
                    self.uploadDocumentName = fileName
                    self.tableView.reloadData()
                   // multipartData.append(Moya.MultipartFormData(provider: .data(imgData1), name: "audio[0]", fileName: "file.mp4", mimeType: "audio/mpeg"))
                }
            }
            catch {
                print("asdfasfd")
            }
        }
        
    }

并使用此上传功能将该文件发送到服务器

func updatePostData(formdata: [MultipartFormData], controller: UIViewController)
{
    provider.request( .UpdatePost(formdata) , callbackQueue: DispatchQueue.main, progress: { (progress) in
        
        print(progress.progress)

    }) { (result) in
         
        switch result{
        case .success(let response):
            
            do {
              loadLoader(isLoading: false)
              
              let responseResult = try response.map(BaseCordableResponseResult<Any>.self)
              print(responseResult)
              
//              self.delegateObject?.reloadData()

                NotificationCenter.default.post(name: Notification.Name("NotificationIdentifier"), object: nil)

               controller.dismiss(animated: true)
                                 
            } catch {
              
               controller.dismiss(animated: true)

            }

        case .failure(let error):
            checkLogoutUser(error: error, viewController: controller)

        }
    }
}