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();
                 }
                 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-R3377JMR1LG\ShareFolder");
 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, , postArray.Length);
                         }
                     }
                 }
             }
             catch (Exception ex)
             {
                 string errMsg = $"{remoteFile}  ex:{ex.ToString()}";
                 LogUtil.Error(errMsg);
                 Console.WriteLine(errMsg);
             }
         }