Asp.net 访问 共享目录

public class IdentityScope : IDisposable



{



    // obtains user token



    [DllImport("advapi32.dll", SetLastError = true)]



    static extern bool LogonUser(string pszUsername, string pszDomain, string pszPassword,



        int dwLogonType, int dwLogonProvider, ref IntPtr phToken);







    // closes open handes returned by LogonUser



    [DllImport("kernel32.dll", CharSet = CharSet.Auto)]



    extern static bool CloseHandle(IntPtr handle);







    [DllImport("Advapi32.DLL")]



    static extern bool ImpersonateLoggedOnUser(IntPtr hToken);







    [DllImport("Advapi32.DLL")]



    static extern bool RevertToSelf();



    const int LOGON32_PROVIDER_DEFAULT = 0;



    const int LOGON32_LOGON_NEWCREDENTIALS = 9;//域控中的需要用:Interactive = 2



    private bool disposed;



    public IdentityScope(string sUsername, string sDomain, string sPassword)



    {



        // initialize tokens



        IntPtr pExistingTokenHandle = new IntPtr(0);



        IntPtr pDuplicateTokenHandle = new IntPtr(0);







        try



        {



            // get handle to token



            bool bImpersonated = LogonUser(sUsername, sDomain, sPassword,



                LOGON32_LOGON_NEWCREDENTIALS, LOGON32_PROVIDER_DEFAULT, ref pExistingTokenHandle);







            if (true == bImpersonated)



            {



                if (!ImpersonateLoggedOnUser(pExistingTokenHandle))



                {



                    int nErrorCode = Marshal.GetLastWin32Error();



                    throw new Exception("ImpersonateLoggedOnUser error;Code=" + nErrorCode);



                }



            }



            else



            {



                int nErrorCode = Marshal.GetLastWin32Error();



                throw new Exception("LogonUser error;Code=" + nErrorCode);



            }



        }



        finally



        {



            // close handle(s)



            if (pExistingTokenHandle != IntPtr.Zero)



                CloseHandle(pExistingTokenHandle);



            if (pDuplicateTokenHandle != IntPtr.Zero)



                CloseHandle(pDuplicateTokenHandle);



        }



    }



    protected virtual void Dispose(bool disposing)



    {



        if (!disposed)



        {



            RevertToSelf();



            disposed = true;



        }



    }



    public void Dispose()



    {



        Dispose(true);



    }



}







//调用;指定共享机器上的用户名,机器名,密码,(不在域控中的.)



using (IdentityScope c = new IdentityScope("userId", "192.168.0.1", "psw"))



{//在此就可以访问了.



	string[] filelist = System.IO.Directory.GetDirectories(@"\\192.168.0.1\folderName");



}