Asp.Net操作共享目录

版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/qq_23502409/article/details/89439618

在此之前有项目中遇到需要操作共享目录里面的文件，因此记录一下：

下面的核心代码是用来在共享目录下载文件时使用：

 /// <summary>
        /// 身份标识  2019年4月10日01:11:15  Dennyhui
        /// </summary>
        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D的?需è要癮用?:Interactive = 2    
            private bool disposed;
            /// <summary>
            /// 创建身份标识  2019年4月10日01:11:35  Dennyhui 
            /// </summary>
            /// <param name="sUsername">用户名</param>
            /// <param name="sDomain">域名</param>
            /// <param name="sPassword">密码</param>
            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);
                }
            }

下载文件：

using (IdentityScope iss = new IdentityScope(user, sftpIP, pwd))
                {
                    DirectoryInfo Dir = new DirectoryInfo(sftpInPath);
                    //找到该目录下的文件 
                    FileInfo[] fis = Dir.GetFiles();
                    //do something....
});

上传文件：

 /// <summary>
        /// 上传文件到共享目录  2019年4月7日17:21:13  Dennyhui
        /// </summary>
        /// <param name="fileNamePath">文件路径</param>
        /// <param name="urlPath">共享路径</param>
        /// <param name="User">用户名</param>
        /// <param name="Pwd">密码</param>
        public static void UpLoadFile(string fileNamePath, string urlPath, string User, string Pwd)
        {
            try
            {
                string newFileName = fileNamePath.Substring(fileNamePath.LastIndexOf(@"\") + 1);//取文件名称
                Log.CreateLogManager().Error(newFileName);
                if (urlPath.EndsWith(@"\") == false) urlPath = urlPath + @"\";

                urlPath = urlPath + newFileName;

                WebClient myWebClient = new WebClient();
                NetworkCredential cread = new NetworkCredential(User, Pwd, "Domain");
                myWebClient.Credentials = cread;
                using (FileStream fs = new FileStream(fileNamePath, FileMode.Open, FileAccess.Read))
                {
                    BinaryReader r = new BinaryReader(fs);
                    byte[] postArray = r.ReadBytes((int)fs.Length);
                    Stream postStream = myWebClient.OpenWrite(urlPath);
                    // postStream.m
                    if (postStream.CanWrite)
                    {
                        postStream.Write(postArray, 0, postArray.Length);
                    }
                    else
                    {
                        Log.CreateLogManager().Error("文件上传错误！");
                    }
                    postStream.Close();
                    fs.Close();
                    fs.Dispose();
                }
            }
            catch (Exception ex)
            {
                Log.CreateLogManager().Error("文件上传发生错误：" + ex);
            }
        }