Question

我正在尝试将图像保存到本地文件系统，然后稍后使用alamofire检索图像以进行上传。但是，我不断收到以下错误消息。也许我在保存图像文件时犯了一些错误。我一次上传两个文件（一个jpg和一个pdf）。我可以上传的pdf文件很好，只是我上传失败的图片文件。

 // Create a URL to save the IMAGE
func createPhotoURL() -> URL {

    let fileName = "tempImage_wb.jpg"

    let documentsDirectories = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)
    let documentDirectory = documentsDirectories.first!
    let pdfPageURL = documentDirectory.appendingPathComponent("\(fileName)")

    return pdfPageURL
}


 // SAVE UIIMAGE TO LOCAL FILE SYSTEM
func saveImageToLocalFile(image: UIImage) -> Void {

    // CREATE URL - SAVE TO PATH
    let imageURL = createPhotoURL() // CORRECT FULL LENGTH URL FOR FILE UPLAOD
    print("IMAGE SAVED TO URL: \(imageURL)")
    let imageData = UIImageJPEGRepresentation(image, 1.0)
    do{

        try imageData?.write(to: imageURL)
        self.scannedImageURL = imageURL

    }catch{
        print("error writing img to local dir")
    }
}


 // CONSTRUCT URL FROM FILE NAME
    let imgFileName = "tempImage_wb.jpg"
    let pdfFileName = "tempImagePDF.pdf"

    var dir: URL!
    do {
        dir = try FileManager.default.url(for: .documentDirectory, in: .userDomainMask, appropriateFor: nil, create: false)
    } catch{
        print("error re-creating url")
    }

    let imgURL = dir.appendingPathComponent(imgFileName)
    let pdfURL = dir.appendingPathComponent(pdfFileName)

    var arrayURLToUpload: [URL] = []
    arrayURLToUpload.append(imgURL)
    arrayURLToUpload.append(pdfURL)


    // PARAMETRS TO SEND
    let sendParamters = ["user_id": "1", "hashTagArray": jsonArrayHashTags]
    Alamofire.upload(
        multipartFormData: { multipartFormData in
            for(key, value) in sendParamters{
                multipartFormData.append((value.data(using: .utf8)!), withName: key)
            }

            for fileURL in arrayURLToUpload{
                print("fileURL: \(fileURL)")
                multipartFormData.append(fileURL, withName: "file[]")
            }
    },
        to: UPLOAD_URL,
        encodingCompletion: { encodingResult in
            switch encodingResult {
            case .success(let upload, _, _):
                upload.responseJSON { response in
                    debugPrint(response)
                }

                /**TRACK PROGRESS OF UPLOAD**/
                upload.uploadProgress { progress in
                    print(progress.fractionCompleted)


                }
                /***/


            case .failure(let encodingError):
                print(encodingError)
            }
        }
    )

控制台：

 IMAGE SAVED TO URL: file:///var/mobile/Containers/Data/Application/1522F3C7-876C-410E-935A-D3EC07BC2275/Documents/tempImage_wb.jpg
 fileURL: file:///var/mobile/Containers/Data/Application/1522F3C7-876C-410E-935A-D3EC07BC2275/Documents/tempImage_wb.jpg

 multipartEncodingFailed(Alamofire.AFError.MultipartEncodingFailureReason.bodyPartFileNotReachableWithError(atURL: file:///var/mobile/Containers/Data/Application/1522F3C7-876C-410E-935A-D3EC07BC2275/Documents/tempImage_wb.jpg, error: Error Domain=NSCocoaErrorDomain Code=260 "The file “tempImage_wb.jpg” couldn’t be opened because there is no such file." UserInfo={NSURL=file:///var/mobile/Containers/Data/Application/1522F3C7-876C-410E-935A-D3EC07BC2275/Documents/tempImage_wb.jpg, NSFilePath=/var/mobile/Containers/Data/Application/1522F3C7-876C-410E-935A-D3EC07BC2275/Documents/tempImage_wb.jpg, NSUnderlyingError=0x1c0453350 {Error Domain=NSPOSIXErrorDomain Code=2 "No such file or directory"}}))

无法将图像保存到本地文件系统iOS-Swift

0 个答案: