Question

我正在刷我的C＃所以我决定编写一个程序，我可以用来轻松导入我拍摄的照片。一点点背景......我用JPEG和RAW拍摄照片，然后浏览并选择JPEG，因为它们更小，更容易处理/预览。然后我只导入那些在后期制作中值得搞乱的RAW文件。

我想编写一个简单的程序来复制一个目录中的RAW文件，该目录与我在另一个目录中筛选的JPEG相匹配。

以下是代码：

static void Main(string[] args)
    {
        Console.WriteLine("Enter the JPEG Origin Directory: "); 
        string originDirectory = @"C:\Users\Greg\Pictures\Summer 2013\Back Bay\testJPEG";

        Console.WriteLine("Enter the RAW Origin Directory: ");
        string copyDirectory = @"C:\Users\Greg\Pictures\Summer 2013\Back Bay\testRAW";

        Console.WriteLine("Enter the RAW Import Directory: ");
        string rawCopyDirectory = @"C:\Users\Greg\Pictures\Summer 2013\Back Bay\testRAWImport"; 

        char[] delimiterChars = { '_', '.' };

        List<string> filesToCopy = new List<string>();
        List<string> CopiedFiles = new List<string>(); 

        foreach (var filePath in Directory.GetFiles(originDirectory))
        {
            Console.WriteLine("Filepath: '{0}'", filePath);
            string[] words = filePath.Split(delimiterChars);

            filesToCopy.Add(words[1]); 
        }

        filesToCopy.ForEach(Console.WriteLine);

        foreach (var copyFilePath in Directory.GetFiles(copyDirectory))
        {
          string[] delimited = copyFilePath.Split(delimiterChars);     

          if (filesToCopy.Contains(delimited[1]))
          {
              Console.WriteLine("Copied: '{0}'", copyFilePath);

              string fileName = Path.GetFileName(copyFilePath);

              string sourcePath = Path.GetDirectoryName(copyFilePath);

              string targetPath = rawCopyDirectory;

              string sourceFile = System.IO.Path.Combine(sourcePath, fileName);

              string destFile = System.IO.Path.Combine(targetPath, fileName);


             System.IO.File.Copy(sourcePath, destFile, true); 

          }


        }

        Console.WriteLine("Press any key to exit.");
        Console.ReadKey();

    }

当我将所有变量写入控制台时，一切似乎正如我所期望的那样，但是我在Copy.File上得到一个异常，指示文件是只读的。我检查了，但它们不是，但是文件夹本身就是，尽管我付出了最大的努力，但我不能将我的测试文件夹作为只读取消标记。任何帮助将不胜感激，我已粘贴下面的例外日志。

System.UnauthorizedAccessException was unhandled
  HResult=-2147024891
  Message=Access to the path 'C:\Users\Greg\Pictures\Summer 2013\Back Bay\testRAW' is denied.
  Source=mscorlib
  StackTrace:
       at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
       at System.IO.File.InternalCopy(String sourceFileName, String destFileName, Boolean overwrite, Boolean checkHost)
       at System.IO.File.Copy(String sourceFileName, String destFileName, Boolean overwrite)
       at ConsoleApplication1.Program.Main(String[] args) in C:\Users\Greg\documents\visual studio 2010\Projects\Photo Importer\Photo Importer\photoImporter.cs:line 56
       at System.AppDomain._nExecuteAssembly(RuntimeAssembly assembly, String[] args)
       at System.AppDomain.nExecuteAssembly(RuntimeAssembly assembly, String[] args)
       at System.Runtime.Hosting.ManifestRunner.Run(Boolean checkAptModel)
       at System.Runtime.Hosting.ManifestRunner.ExecuteAsAssembly()
       at System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext, String[] activationCustomData)
       at System.Runtime.Hosting.ApplicationActivator.CreateInstance(ActivationContext activationContext)
       at System.Activator.CreateInstance(ActivationContext activationContext)
       at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssemblyDebugInZone()
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
  InnerException:

Answer 1

问题可能是您无法删除或覆盖只读文件。解决方案是更改属性。

if(File.Exists(destFile))
{
    File.SetAttributes(destFile, FileAttributes.Normal);
}
File.Copy(sourcePath, destFile, true);

Answer 2

您正在尝试访问程序可以使用的文件以外的文件。

尝试查看旧版Why is access to the path denied?

Answer 3

原来我在File.Copy中调用了错误的变量，而是试图复制路径而不是文件（derp）。现在一切正常！谢谢你的回复！

File.Copy中的C＃UnauthorizedAccessException

3 个答案: