C#訪問共享目錄 得到共享目錄文件列表和修改裏面的文件

建一個IdentityScope類，並引用相應的包

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;

namespace yokohama.util
{
    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);  
        }  
    } 
}

使用方法：

private String[] findFile(String hostIp,String dirname )
        {
            using (IdentityScope iss = new IdentityScope(username, hostIp,password))
            {
                try
                {
                    return System.IO.Directory.GetFiles(@"\\\\" + hostIp+"\\"+dirname);
                }
                catch(Exception e)
                {
                    Console.WriteLine(e.Message);
                }
                return null;
            }
        }

        public void writeStatusFile(String hostIp, String dirname,String message)
        {
            using (IdentityScope iss = new IdentityScope(username , hostIp, password))
            {
                String filepath = "\\\\" + hostIp + "\\" + dirname + "\\status.txt";
                if (!System.IO.File.Exists(filepath))
                {
                    File.Create(filepath);
                }


                //MessageBox.Show("撮影中、少々お待ち下さい");
                using (StreamWriter sw = new StreamWriter(filepath))
                {
                    sw.WriteLine("現狀撮影開始");
                }
            }
        }

一個是得到文件列表，下面那個方法是操作遠程共享文件

轉載自：http://jonsion.iteye.com/blog/881655