设置ProcessStartInfo.WorkingDirectory一个UNC路径

Question

我有一个工具，我已经写在VB.net是运行的计划任务。它在内部调用另一个可执行文件，它具有访问映射驱动器。显然，窗户与访问映射驱动器时，不登录的用户，即使在认证证书被提供给任务本身的计划任务的问题。好了，细

要解决这个问题我刚刚通过我的应用程序的UNC路径。

process.StartInfo.FileName = 'name of executable'
process.StartInfo.WorkingDirectory = '\\unc path\'
process.StartInfo.WindowStyle = ProcessWindowStyle.Hidden
process.StartInfo.Arguments = 'arguments to executable'
process.Start()

这是我与映射的驱动器中使用相同的实现，但是使用UNC路径，该处理不表现得好像UNC路径是工作目录。

是否有任何已知问题设置ProcessStartInfo.WorkingDirectory一个UNC路径？如果不是这样，我在做什么错了？

Answer 1

您使用映射驱动器的问题时，在没有登录用户的是，它们不存在。驱动器只映射，并提供给用户当前登录。如果没有一个已登录，没有驱动器映射。

作为一种变通方法，您可以通过CMD运行，呼叫PUSHD将您的UNC映射到幕后驱动器，然后执行代码。我已经从我的SYSTEM32复制的tree.com文件，并把它放在我的文件服务器上的“tree4.com”这个代码按预期工作（我也重定向标准输出，所以我可以看到调用的结果，但是公司不是必要的）

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

    Using P As New Process()
        'Launch a standard hidden command window
        P.StartInfo.FileName = "cmd.exe"
        P.StartInfo.WindowStyle = ProcessWindowStyle.Hidden
        P.StartInfo.CreateNoWindow = True

        'Needed to redirect standard error/output/input
        P.StartInfo.UseShellExecute = False

        P.StartInfo.RedirectStandardInput = True
        P.StartInfo.RedirectStandardOutput = True

        'Add handler for when data is received
        AddHandler P.OutputDataReceived, AddressOf SDR

        'Start the process
        P.Start()

        'Begin async data reading
        P.BeginOutputReadLine()

        '"Map" our drive
        P.StandardInput.WriteLine("pushd \\file-server\File-Server")

        'Call our command, you could pass args here if you wanted
        P.StandardInput.WriteLine("tree2.com  c:\3ea7025b247d0dfb7731a50bf2632f")

        'Once our command is done CMD.EXE will still be sitting around so manually exit
        P.StandardInput.WriteLine("exit")
        P.WaitForExit()
    End Using

    Me.Close()
End Sub
Private Sub SDR(ByVal sender As Object, ByVal e As DataReceivedEventArgs)
    Trace.WriteLine(e.Data)
End Sub

Answer 2

我跑过这个问题，接受的解决方案是复杂，我一点点。我所做的就是把UNC路径和它的内容复制到[Path.GetTempDir()]\[Guid.NewGuid().ToString()]，然后用它作为我的工作目录process.StartInfo.WorkingDirectory。在一个名为“环境”，这将实现IDisposable，并在处置清理您创建的临时目录类包装这个功能。像这样（忽略的设置的参考文献）：

 using (var env = new ProcessEnvironment(settings))
                {
                    filePath = Path.Combine(env.WorkingDirectory, settings.ApplicationEXE);
                    var psi = new ProcessStartInfo
                    {
                        UseShellExecute = false,
                        FileName = filePath,
                        WorkingDirectory = env.WorkingDirectory,
                        Arguments = (args != null && args.Length > 0 ? String.Join(" ", args) : null)
                    };

                    var proc = Process.Start(psi);

                    if (env.ExecutingFromTempDir || settings.WaitForExit)
                        proc.WaitForExit();
                }

和ProcessEnvironment看起来像：

 class ProcessEnvironment : IDisposable
    {
        private Settings itsSettings;
        private string itsTempDestDirectory;
        public string WorkingDirectory { get; set; }
        public bool ExecutingFromTempDir { get { return !String.IsNullOrEmpty(itsTempDestDirectory); } }

        public ProcessEnvironment(Settings settings)
        {
            this.itsSettings = settings;

            WorkingDirectory = GetWorkingDirectory();
        }

        private string GetWorkingDirectory()
        {
            var dirInfo = new DirectoryInfo(itsSettings.StartupFolder);

            if (!IsUncDrive(dirInfo))
                return itsSettings.StartupFolder;

            return CreateWorkingDirectory(dirInfo);
        }

        private string CreateWorkingDirectory(DirectoryInfo dirInfo)
        {
            var srcPath = dirInfo.FullName;
            itsTempDestDirectory = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToString());
            Directory.CreateDirectory(itsTempDestDirectory);

            //Now Create all of the directories
            foreach (string dirPath in Directory.GetDirectories(srcPath, "*", SearchOption.AllDirectories))
                Directory.CreateDirectory(dirPath.Replace(srcPath, itsTempDestDirectory));

            //Copy all the files & Replaces any files with the same name
            foreach (string newPath in Directory.GetFiles(srcPath, "*.*", SearchOption.AllDirectories))
                File.Copy(newPath, newPath.Replace(srcPath, itsTempDestDirectory), true);

            return itsTempDestDirectory;
        }

        private bool IsUncDrive(DirectoryInfo dirInfo)
        {
            Uri uri = null;
            if (!Uri.TryCreate(dirInfo.FullName, UriKind.Absolute, out uri))
            {
                return false;
            }
            return uri.IsUnc;
        }



        public void Dispose()
        {
            try
            {
                if (ExecutingFromTempDir)
                    Directory.Delete(itsTempDestDirectory, true);

            }
            catch (Exception ex)
            {  //do nothing - if we can't delete then we can't do it
                Console.WriteLine("Failed in Dispose: " + ex);
            }
        }
    }