使用带有C#的SSH.NET复制或移动远程文件

Question

我知道我可以使用'SftpClient'类的SSH.NET库从/向sFTP服务器上传和下载文件,但我不确定如何使用此类在sFTP服务器上复制或移动远程文件.我也没有在互联网上找到相关资料.如何使用SSH.NET库和C#将远程文件从目录A复制或移动到目录B.

更新: 我也尝试使用下面的代码试验SshClient类,但它什么也没做,既没有任何错误也没有任何异常.

ConnectionInfo ConnNfo = new ConnectionInfo("FTPHost", 22, "FTPUser",
new AuthenticationMethod[]{

   // Pasword based Authentication
   new PasswordAuthenticationMethod("FTPUser","FTPPass")
   }                
   );

using (var ssh = new SshClient(ConnNfo))
{
    ssh.Connect();                
    if (ssh.IsConnected)
    {                    
         string comm = "pwd";
         using (var cmd = ssh.CreateCommand(comm))
         {
            var returned = cmd.Execute();
            var output = cmd.Result;
            var err = cmd.Error;
            var stat = cmd.ExitStatus;
         }
     }
   ssh.Disconnect();
}

在Visual Studio控制台上,我得到以下输出.

*SshNet.Logging详细:1:SendMessage到服务器'ChannelRequestMessage':'SSH_MSG_CHANNEL_REQUEST:#152199'.

SshNet.Logging详细:1:来自服务器的ReceiveMessage:'ChannelFailureMessage':'SSH_MSG_CHANNEL_FAILURE:#0'.*

Answer 1

除了 SSH.NET 之外，当我遇到问题时SftpClient，还有更简单的方法。只有上传/下载功能，但这满足了我的用例。ScpClientSftpClientScpClient

上传：

using (ScpClient client = new ScpClient(host, username, password))
{
    client.Connect();

    using (Stream localFile = File.OpenRead(localFilePath))
    {
         client.Upload(localFile, remoteFilePath);
    }
}

下载：

using (ScpClient client = new ScpClient(host, username, password))
{
    client.Connect();

    using (Stream localFile = File.Create(localFilePath))
    {
         client.Download(remoteFilePath, localFile);
    }
}

Answer 2

使用 Renci 的 NuGet 包 SSH.NET，我使用以下内容：

using Renci.SshNet;
using Renci.SshNet.SftpClient;    

...

        SftpClient _sftp = new SftpClient(_host, _username, _password);

移动文件：

        var inFile = _sftp.Get(inPath);
        inFile.MoveTo(outPath);

复制文件：

       var fsIn = _sftp.OpenRead(inPath);
       var fsOut = _sftp.OpenWrite(outPath);

        int data;
        while ((data = fsIn.ReadByte()) != -1)
            fsOut.WriteByte((byte)data);

        fsOut.Flush();
        fsIn.Close();
        fsOut.Close();

Answer 3

可以使用SSH.NET库来移动远程文件.可在此处访问:https://github.com/sshnet/SSH.NET

以下是将第一个文件从一个源文件夹移动到另一个源文件夹的示例代 根据FTP设置在类中设置私有变量.

using System;
using System.Linq;
using System.Collections.Generic;
using Renci.SshNet;
using Renci.SshNet.Sftp;
using System.IO;
using System.Configuration;
using System.IO.Compression;

public class RemoteFileOperations
{
    private string ftpPathSrcFolder = "/Path/Source/";//path should end with /
    private string ftpPathDestFolder = "/Path/Archive/";//path should end with /
    private string ftpServerIP = "Target IP";
    private int ftpPortNumber = 80;//change to appropriate port number
    private string ftpUserID = "FTP USer Name";//
    private string ftpPassword = "FTP Password";
    /// <summary>
    /// Move first file from one source folder to another. 
    /// Note: Modify code and add a for loop to move all files of the folder
    /// </summary>
    public void MoveFolderToArchive()
    {
        using (SftpClient sftp = new SftpClient(ftpServerIP, ftpPortNumber, ftpUserID, ftpPassword))
        {
            SftpFile eachRemoteFile = sftp.ListDirectory(ftpPathSrcFolder).First();//Get first file in the Directory            
            if(eachRemoteFile.IsRegularFile)//Move only file
            {
                bool eachFileExistsInArchive = CheckIfRemoteFileExists(sftp, ftpPathDestFolder, eachRemoteFile.Name);

                //MoveTo will result in error if filename alredy exists in the target folder. Prevent that error by cheking if File name exists
                string eachFileNameInArchive = eachRemoteFile.Name;

                if (eachFileExistsInArchive)
                {
                    eachFileNameInArchive = eachFileNameInArchive + "_" + DateTime.Now.ToString("MMddyyyy_HHmmss");//Change file name if the file already exists
                }
                eachRemoteFile.MoveTo(ftpPathDestFolder + eachFileNameInArchive);
            }           
        }
    }

    /// <summary>
    /// Checks if Remote folder contains the given file name
    /// </summary>
    public bool CheckIfRemoteFileExists(SftpClient sftpClient, string remoteFolderName, string remotefileName)
    {
        bool isFileExists = sftpClient
                            .ListDirectory(remoteFolderName)
                            .Any(
                                    f => f.IsRegularFile &&
                                    f.Name.ToLower() == remotefileName.ToLower()
                                );
        return isFileExists;
    }

}