C# 访问共享文件夹或者磁盘（需要用户名密码）

SharedTool：

using System;  
using System.Collections.Generic;  
using System.Linq;  
using System.Text;  
using System.Runtime.InteropServices;  
  
namespace ConsoleApplication5  
{  
    public class SharedTool : 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 SharedTool(string username, string password, string ip)  
        {  
            // initialize tokens       
            IntPtr pExistingTokenHandle = new IntPtr(0);  
            IntPtr pDuplicateTokenHandle = new IntPtr(0);  
  
            try  
            {  
                // get handle to token       
                bool bImpersonated = LogonUser(username, ip, password,  
                    LOGON32_LOGON_NEWCREDENTIALS, LOGON32_PROVIDER_DEFAULT, ref pExistingTokenHandle);  
  
                if (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);  
        }  
    }  
}  

案例：

using System;  
using System.Collections.Generic;  
using System.Linq;  
using System.Text;  
using System.IO;  
  
namespace ConsoleApplication5  
{  
    class Program  
    {  
        static void Main(string[] args)  
        {  
            using (SharedTool tool = new SharedTool("administrator", "12345678", "192.168.1.101"))  
            {  
                string selectPath = @"\\192.168.1.101\c$";  
  
                var dicInfo = new DirectoryInfo(selectPath);//选择的目录信息  
  
                DirectoryInfo[] dic = dicInfo.GetDirectories("*.*", SearchOption.TopDirectoryOnly);  
                foreach (DirectoryInfo temp in dic)  
                {  
                    Console.WriteLine(temp.FullName);  
                }  
  
                Console.WriteLine("---------------------------");  
                FileInfo[] textFiles = dicInfo.GetFiles("*.*", SearchOption.TopDirectoryOnly);//获取所有目录包含子目录下的文件  
                foreach (FileInfo temp in textFiles)  
                {  
                    Console.WriteLine(temp.Name);  
                }  
            }  
            Console.ReadKey();  
        }  
    }  
}