如何在遠程目錄中讀取文件

Question

如何訪問遠程目錄中的文件。如何提供用戶名和密碼。因此，我可以從那裏讀取文件。請在c＃中提供解決方案。

我已經檢查這一點：Directory on another machine - Login credentials

但無法understand.Any工作的代碼會有所幫助。

Answer 1

這就像使用提供的憑證創建到遠程計算機的連接，然後對文件執行操作。

請看下面的代碼，提供幫助者訪問遠程計算機，

public class NetworkConnection : IDisposable 
{ 
    string _networkName; 
    uint dwFlags; 
    public NetworkConnection(string networkName, NetworkCredential credentials) 
    { 
     _networkName = networkName; 

     var netResource = new NetResource() 
     { 
      Scope = ResourceScope.GlobalNetwork, 
      ResourceType = ResourceType.Disk, 
      DisplayType = ResourceDisplaytype.Share, 
      RemoteName = networkName 
     }; 

     var userName = string.IsNullOrEmpty(credentials.Domain) 
      ? credentials.UserName 
      : string.Format(@"{0}\{1}", credentials.Domain, credentials.UserName); 

     var result = WNetAddConnection2(netResource,"","",0x00000008 | 0x00000010); 

     if (result != 0) 
     { 
      string strErrMsg = ""; 
      if (result == 67) 
      { 
       strErrMsg = "The network name cannot be found."; 
      } 
      if (result == 86) 
      { 
       strErrMsg = "Invalid UserName or Password for ProBiz server"; 
      } 
      else if (result == 1219) 
      { 
       strErrMsg = "Multiple connections to a server or shared resource by the same user, using more than one user name, are not allowed.Close application to Disconnect all previous connections to the server or shared resource and try again."; 
      } 

      throw new Win32Exception(result, "Error connecting to "+networkName+" remote share.Error Code:"+result.ToString()+"."+strErrMsg); 
     } 
     else 
     { 
      MessageBox.Show("Test connection is successful for "+ networkName); 
     } 
    } 

    ~NetworkConnection() 
    { 
     Dispose(false); 
    } 

    public void Dispose() 
    { 
     Dispose(true); 
     GC.SuppressFinalize(this); 
    } 

    protected virtual void Dispose(bool disposing) 
    { 
     WNetCancelConnection2(_networkName, 1, true ); 
     var command = "NET USE /delete *"; 
     ExecuteCommand(command, 5000); 

    } 
    public static int ExecuteCommand(string command, int timeout) 
    { 
     var processInfo = new ProcessStartInfo("cmd.exe", "/C " + command) 
     { 
      CreateNoWindow = true, 
      UseShellExecute = false, 
      WorkingDirectory = "C:\\", 
     }; 

     var process = Process.Start(processInfo); 
     process.WaitForExit(timeout); 
     var exitCode = process.ExitCode; 
     process.Close(); 
     return exitCode; 
    } 

    [DllImport("mpr.dll")] 
    private static extern int WNetAddConnection2(NetResource netResource, 
     string password, string username, int flags); 

    [DllImport("mpr.dll")] 
    private static extern int WNetCancelConnection2(string name, int flags, 
     bool force); 
} 

[StructLayout(LayoutKind.Sequential)] 
public class NetResource 
{ 
    public ResourceScope Scope; 
    public ResourceType ResourceType; 
    public ResourceDisplaytype DisplayType; 
    public int Usage; 
    public string LocalName; 
    public string RemoteName; 
    public string Comment; 
    public string Provider; 
} 

public enum ResourceScope : int 
{ 
    Connected = 1, 
    GlobalNetwork, 
    Remembered, 
    Recent, 
    Context 
}; 

public enum ResourceType : int 
{ 
    Any = 0, 
    Disk = 1, 
    Print = 2, 
    Reserved = 8, 
} 

public enum ResourceDisplaytype : int 
{ 
    Generic = 0x0, 
    Domain = 0x01, 
    Server = 0x02, 
    Share = 0x03, 
    File = 0x04, 
    Group = 0x05, 
    Network = 0x06, 
    Root = 0x07, 
    Shareadmin = 0x08, 
    Directory = 0x09, 
    Tree = 0x0a, 
    Ndscontainer = 0x0b 
}