WinScp上传和下载

不多说，贴代码，看不懂得可以留言。需要引入WinSCP

public class WebWinScp
    {
        //远程上传路径
        private SessionOptions sessionOptions = null;
        private WinSCP.Session session = new WinSCP.Session();
        /// <summary>
        /// 
        /// </summary>
        /// <param name="HostName">FTP服务器</param>
        /// <param name="UserName">账号</param>
        /// <param name="Password">密码</param>
        /// <param name="SshPrivateKeyPath">Ssh私有密钥路径(以PPK结尾的文件)</param>
        public WebWinScp(string HostName, string UserName, string Password, string SshPrivateKeyPath)
        {
            sessionOptions = new SessionOptions
            {
                Protocol = Protocol.Sftp,
                HostName = HostName,
                UserName = UserName,
                Password = Password,
                SshPrivateKeyPath = SshPrivateKeyPath,
                GiveUpSecurityAndAcceptAnySshHostKey = true
            };
        }
        /// <summary>
        /// 下载FTP上的所有文件，并移除FTP上下载的问题
        /// </summary>
        /// <param name="localPath">本地下载路径</param>
        /// <param name="remoteDoPath">远程下载路径</param>
        public void Download(string localPath, string remoteDoPath)
        {
            try
            {
                //开启连接
                session.Open(sessionOptions);
                TransferOptions transferOptions = new TransferOptions();
                //传输模式  二进制
                transferOptions.TransferMode = TransferMode.Binary;
                //FTP上的目录列表
                RemoteDirectoryInfo directoryInfo = session.ListDirectory(remoteDoPath);
                RemoteFileInfoCollection ct = directoryInfo.Files;
                TransferOperationResult transferResult;
                foreach (RemoteFileInfo item in ct)
                {
                    transferResult = session.GetFiles(remoteDoPath + item.Name, localPath, true, transferOptions);
                    if (transferResult != null)
                    {
                        transferResult.Check();
                    }
                }
            }
            catch (Exception)
            {
                throw;
            }
            finally
            {
                if (session.Opened)
                {
                    session.Close();
                }
            }
        }
        /// <summary>
        /// 上传本地文件到FTP上，上传成功删除本机文件
        /// </summary>
        /// <param name="localPath">本地上传路径</param>
        /// <param name="remoteUpPath">远程上传路径</param>
        public void Upload(string localPath, string remoteUpPath)
        {
            try
            {
                //开启连接
                session.Open(sessionOptions);
                TransferOptions transferOptions = new TransferOptions();
                //传输模式  二进制
                transferOptions.TransferMode = TransferMode.Binary;
                TransferOperationResult transferResult = null;
                transferResult = session.PutFiles(localPath, remoteUpPath, true, transferOptions);
                if (transferResult != null)
                {
                    transferResult.Check();
                }
            }
            catch (Exception)
            {
                throw;
            }
            finally
            {
                if (session.Opened)
                {
                    session.Close();
                }
            }
        }
    }