Question

我有来自url的下载文件的下一代码。但是我得到了下一个错误：

失败并显示错误：错误Domain = NSCocoaErrorDomain Code = 516 “”CFNetworkDownload_85Dvq4.tmp“无法移至”文档“ 因为已存在具有相同名称的项目。“ 的UserInfo = {NSSourceFilePathErrorKey = /用户/大谷/库/开发商/ CoreSimulator /设备/ 8BABC203-7FD9-4F03-BF0D-D660DD29CCDE /数据/容器/数据/应用/ 09C714D3-F185-4289-91DB-13B21557B784 / TMP / CFNetworkDownload_85Dvq4。 TMP， NSUserStringVariant =（移动），NSDestinationFilePath = / Users / otani / Library / Developer / CoreSimulator / Devices / 8BABC203-7FD9-4F03-BF0D-D660DD29CCDE / data / Containers / Data / Application / 09C714D3-F185-4289-91DB-13B21557B784 / Documents / temp。微克， NSFilePath = /用户/大谷/库/开发商/ CoreSimulator /设备/ 8BABC203-7FD9-4F03-BF0D-D660DD29CCDE /数据/容器/数据/应用/ 09C714D3-F185-4289-91DB-13B21557B784 / TMP / CFNetworkDownload_85Dvq4.tmp， NSUnderlyingError = 0x7fea5a53a9a0 {错误域= NSPOSIXErrorDomain 代码= 17“文件存在”}}

下载文件的代码：

func downloadFile(let url: String!){
        self.downloadHUD()
        Alamofire.download(.GET, url) { temporaryURL, response in
            let documentsUrl =  NSFileManager.defaultManager().URLsForDirectory(.DocumentDirectory, inDomains: .UserDomainMask).first!
            let fullPath = documentsUrl.URLByAppendingPathComponent(Misc.pathToSaveFile)
            if (NSFileManager.defaultManager().fileExistsAtPath(fullPath.absoluteString)){
                   try! NSFileManager.defaultManager().removeItemAtURL(fullPath)
            }
            return fullPath

        }
        .progress { bytesRead, totalBytesRead, totalBytesExpectedToRead in
                dispatch_async(dispatch_get_main_queue()) {
                    self.hud.progress = Float(totalBytesRead) / Float(totalBytesExpectedToRead)
                    print("Total bytes read on main queue: \(totalBytesRead)")
            }
        }
        .response { _, _, _, error in
                if let error = error {
                    print("Failed with error: \(error)")
                } else {
                    print("Downloaded file successfully")
                    self.hideHUD()
                }
        }

    }

错误上线

print("Failed with error: \(error)")

Answer 1

解决方案是重写目标文件。

NSPOSIXErrorDomain下载文件

1 个答案: