c# 操作 Sftp

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先在项目中引用 Renci.SshNet.dll (点击下载)
创建 SFTPHelper.cs 类
代码:
using Renci.SshNet;using System;using System.Collections;using System.Collections.Generic;using System.IO;using System.Linq;using System.Text;using System.Threading.Tasks;namespace CheatingTransmitterCalibration{    /*     * 此类为sftp连接操作类     * 使用方法:引用SshNet文件夹下的Renci.SshNet.dll文件,以及此类文件,即可使用     */    public class SFTPOperation    {        #region 字段或属性        private SftpClient sftp;        /// <summary>        /// SFTP连接状态        /// </summary>        public bool Connected { get { return sftp.IsConnected; } }        #endregion        #region 构造        /// <summary>        /// 构造        /// </summary>        /// <param name="ip">IP</param>        /// <param name="port">端口</param>        /// <param name="user">用户名</param>        /// <param name="pwd">密码</param>        public SFTPOperation(string ip, string port, string user, string pwd)        {            sftp = new SftpClient(ip, Int32.Parse(port), user, pwd);        }        #endregion        #region 连接SFTP        /// <summary>        /// 连接SFTP        /// </summary>        /// <returns>true成功</returns>        public bool Connect()        {            try            {                if (!Connected)                {                    sftp.Connect();                }                return true;            }            catch (Exception ex)            {                throw new Exception(string.Format("连接SFTP失败，原因：{0}", ex.Message));            }        }        #endregion        #region 断开SFTP        /// <summary>        /// 断开SFTP        /// </summary>         public void Disconnect()        {            try            {                if (sftp != null && Connected)                {                    sftp.Disconnect();                }            }            catch (Exception ex)            {                throw new Exception(string.Format("断开SFTP失败，原因：{0}", ex.Message));            }        }        #endregion        #region SFTP上传文件        /// <summary>        /// SFTP上传文件        /// </summary>        /// <param name="localPath">本地路径</param>        /// <param name="remotePath">远程路径</param>        public int Put(string localPath, string remotePath)        {            try            {                using (var file = File.OpenRead(localPath))                {                    Connect();                    sftp.UploadFile(file, remotePath);                    Disconnect();                }                return 1;            }            catch (Exception ex)            {                //throw new Exception(string.Format("SFTP文件上传失败，原因：{0}", ex.Message));                return 0;            }        }        #endregion        #region SFTP获取文件        /// <summary>        /// SFTP获取文件        /// </summary>        /// <param name="remotePath">远程路径</param>        /// <param name="localPath">本地路径</param>        public void Get(string remotePath, string localPath)        {            try            {                Connect();                var byt = sftp.ReadAllBytes(remotePath);                Disconnect();                File.WriteAllBytes(localPath, byt);            }            catch (Exception ex)            {                throw new Exception(string.Format("SFTP文件获取失败，原因：{0}", ex.Message));            }        }        #endregion        #region 删除SFTP文件        /// <summary>        /// 删除SFTP文件         /// </summary>        /// <param name="remoteFile">远程路径</param>        public void Delete(string remoteFile)        {            try            {                Connect();                sftp.Delete(remoteFile);                Disconnect();            }            catch (Exception ex)            {                throw new Exception(string.Format("SFTP文件删除失败，原因：{0}", ex.Message));            }        }        #endregion        #region 获取SFTP文件列表        /// <summary>        /// 获取SFTP文件列表        /// </summary>        /// <param name="remotePath">远程目录</param>        /// <param name="fileSuffix">文件后缀</param>        /// <returns></returns>        public ArrayList GetFileList(string remotePath, string fileSuffix)        {            try            {                Connect();                var files = sftp.ListDirectory(remotePath);                Disconnect();                var objList = new ArrayList();                foreach (var file in files)                {                    string name = file.Name;                    if (name.Length > (fileSuffix.Length + 1) && fileSuffix == name.Substring(name.Length - fileSuffix.Length))                    {                        objList.Add(name);                    }                }                return objList;            }            catch (Exception ex)            {                throw new Exception(string.Format("SFTP文件列表获取失败，原因：{0}", ex.Message));            }        }        #endregion        #region 移动SFTP文件        /// <summary>        /// 移动SFTP文件        /// </summary>        /// <param name="oldRemotePath">旧远程路径</param>        /// <param name="newRemotePath">新远程路径</param>        public void Move(string oldRemotePath, string newRemotePath)        {            try            {                Connect();                sftp.RenameFile(oldRemotePath, newRemotePath);                Disconnect();            }            catch (Exception ex)            {                throw new Exception(string.Format("SFTP文件移动失败，原因：{0}", ex.Message));            }        }        #endregion    }}
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