asp.net访问网络路径方法(模拟用户登录)

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 = ;

    const int LOGON32_LOGON_NEWCREDENTIALS = ;//域ò控?中D的?需è要a用?:Interactive = 2

    private bool disposed;

    /// <summary>

    /// 登?录?

    /// </summary>

    /// <param name="sUsername">用?户§名?</param>

    /// <param name="sDomain">域ò名?，?如?果?不?在ú域ò中D就í使1用?机ú器÷IP地?址·</param>

    /// <param name="sPassword">密ü码?</param>

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

    {

      // initialize tokens

      IntPtr pExistingTokenHandle = new IntPtr();

      IntPtr pDuplicateTokenHandle = new IntPtr();

      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);

    }

  }

//第二个参数是域名，有域名的话写域名，没有域名写目标机器的IP就可以了
using (IdentityScope c = new IdentityScope("administrator", "192.168.0.1", ""))

{

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

}