C# 读写网上邻居中的共享文件

读写网上邻居共享的文件夹，和操作本地文件夹类似，只要有权限读取写入即可。

分为以下2步：

1.打通共享文件夹权限

2.操作文件

打通共享文件夹权限

        /// <summary>
        /// 连接共享文件
        /// </summary>
        /// <param name="path">共享文件地址</param>
        /// <param name="userName">用户名</param>
        /// <param name="passWord">密码</param>
        /// <returns>true:连接成功 false:连接失败</returns>
        public static bool ConnectState(string path, string userName, string passWord)
        {
            bool Flag = false;
            Process proc = new Process();
            try
            {
                proc.StartInfo.FileName = "cmd.exe";
                proc.StartInfo.UseShellExecute = false;
                proc.StartInfo.RedirectStandardInput = true;
                proc.StartInfo.RedirectStandardOutput = true;
                proc.StartInfo.RedirectStandardError = true;
                proc.StartInfo.CreateNoWindow = true;
                proc.Start();
                string dosLine = @"net use " + path + " /User:" + userName + " " + passWord + " /PERSISTENT:YES";
                proc.StandardInput.WriteLine(dosLine);
                proc.StandardInput.WriteLine("exit");
                while (!proc.HasExited)
                {
                    proc.WaitForExit(1000);
                }
                string errormsg = proc.StandardError.ReadToEnd();
                proc.StandardError.Close();
                if (string.IsNullOrEmpty(errormsg))
                {
                    Flag = true;
                }
                else
                {
                    throw new Exception(errormsg);
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                proc.Close();
                proc.Dispose();
            }

            return Flag;
        }

创建文件夹

DirectoryInfo dirInfo = new DirectoryInfo("\WIN-R3377JMR1LGShareFolder");
if (dirInfo.Exists == false)
{
    dirInfo.Create();
}

上传文件

        /// <summary>
        /// 上传文件到共享文件夹
        /// </summary>
        /// <param name="sourceFile">本地文件</param>
        /// <param name="remoteFile">远程文件</param>
        public static void UpLoadFile(string sourceFile, string remoteFile)
        {
            //判断文件夹是否存在 ->不存在则创建
            var targetFolder = Path.GetDirectoryName(remoteFile);
            DirectoryInfo theFolder = new DirectoryInfo(targetFolder);
            if (theFolder.Exists == false)
            {
                theFolder.Create();
            }

            try
            {
                WebClient myWebClient = new WebClient();
                NetworkCredential cread = new NetworkCredential();
                myWebClient.Credentials = cread;

                using (FileStream fs = new FileStream(sourceFile, FileMode.Open, FileAccess.Read))
                {
                    using (BinaryReader r = new BinaryReader(fs))
                    {
                        byte[] postArray = r.ReadBytes((int)fs.Length);
                        using (Stream postStream = myWebClient.OpenWrite(remoteFile))
                        {
                            if (postStream.CanWrite == false)
                            {
                                LogUtil.Error($"{remoteFile} 文件不允许写入~");
                                return;
                            }

                            postStream.Write(postArray, 0, postArray.Length);
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                string errMsg = $"{remoteFile}  ex:{ex.ToString()}";
                LogUtil.Error(errMsg);
                Console.WriteLine(errMsg);
            }
        }