FTPS服务器的上传文件、下载文件、删除指定文件和获取所有文件名

最新推荐文章于 2025-06-19 10:53:27 发布

原创最新推荐文章于 2025-06-19 10:53:27 发布 · 1.3k 阅读

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本文提供了一个FTPS客户端类库的使用教程，包括连接服务器、获取文件列表、上传和下载文件等功能，并解决了因SSL版本变化导致的身份验证问题。

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using AlexPilotti.FTPS.Client;
using System.Net;
using AlexPilotti.FTPS.Common;

namespace FTPS
{
    public class FtpsHelper
    {
        /// <summary>
        /// 获取连接对象
        /// </summary>
        /// <param name="FtpIP">IP地址</param>
        /// <param name="Name">登陆用户</param>
        /// <param name="Pass">用户密码</param>
        /// <param name="Msg">错误信息</param>
        /// <param name="Port">端口号（默认21）</param>
        /// <returns>连接对象</returns>
        private static FTPSClient GetClient(string FtpIP, string Name, string Pass, out string Msg, int Port = 21)
        {
            FTPSClient client = new FTPSClient();
            Msg = "";
            try
            {
                NetworkCredential netCredential = new NetworkCredential(Name, Pass);
                client.Connect(
                    FtpIP,
                    Port,
                    netCredential,
                    ESSLSupportMode.All,
                    new System.Net.Security.RemoteCertificateValidationCallback(delegate
                    {
                        return true;
                    }), null, 0, 0, 0, null);
            }
            catch (Exception ex)
            {
                Msg = ex.Message;
            }
            return client;
        }
        /// <summary>
        /// 获取目标Ftps服务器中的文件集合（包括子文件夹）
        /// </summary>
        /// <param name="FtpIP">IP地址</param>
        /// <param name="Name">登陆用户</param>
        /// <param name="Pass">用户密码</param>
        /// <param name="Msg">错误信息</param>
        /// <param name="Port">端口号（默认21）</param>
        /// <returns></returns>
        public static List<DirectoryListItem> GetDirectoryList(string FtpIP, string Name, string Pass, out string Msg, int Port = 21)
        {
            var list = new List<DirectoryListItem>();

            FTPSClient client = GetClient(FtpIP, Name, Pass, out Msg, Port);
            if (Msg != "") { return list; }
            try
            {
                string remoteCurrentPath = client.GetCurrentDirectory();
                list = client.GetDirectoryList(remoteCurrentPath).ToList();
            }
            catch (Exception ex)
            {
                Msg = ex.Message;
            }
            finally
            {
                client.Close();
            }
            return list;
        }
        /// <summary>
        /// 获取目标Ftps服务器中的文件名集合（不包括子文件夹）
        /// </summary>
        /// <param name="FtpIP">IP地址</param>
        /// <param name="Name">登陆用户</param>
        /// <param name="Pass">用户密码</param>
        /// <param name="Msg">错误信息</param>
        /// <param name="Port">端口号（默认21）</param>
        /// <returns></returns>
        public static List<string> GetFiles(string FtpIP, string Name, string Pass, out string Msg, int Port = 21)
        {
            var list = new List<string>();

            FTPSClient client = GetClient(FtpIP, Name, Pass, out Msg, Port);
            if (Msg != "") { return list; }
            try
            {
                string remoteCurrentPath = client.GetCurrentDirectory();
                list = client.GetShortDirectoryList(remoteCurrentPath).ToList();
            }
            catch (Exception ex)
            {
                Msg = ex.Message;
            }
            finally
            {
                client.Close();
            }
            return list;
        }
        /// <summary>
        /// 上传文件到Ftps服务器
        /// </summary>
        /// <param name="FtpIP">IP地址</param>
        /// <param name="Name">登陆用户</param>
        /// <param name="Pass">用户密码</param>
        /// <param name="FilePath">要上传的文件路径（包括文件名）</param>
        /// <param name="Msg">错误信息</param>
        /// <param name="SaveName">保存到目标Ftps服务器中的文件名（默认为空，则为原文件名）</param>
        /// <param name="Port">端口号（默认21）</param>
        /// <returns>是否成功</returns>
        public static bool UploadFile(string FtpIP, string Name, string Pass, string FilePath, out string Msg, string SaveName = "", int Port = 21)
        {
            bool result = false;

            FTPSClient client = GetClient(FtpIP, Name, Pass, out Msg, Port);
            if (Msg != "") { return result; }
            try
            {
                if (SaveName == "")
                {
                    int index = FilePath.LastIndexOf('\\');
                    SaveName = FilePath.Substring(index + 1);
                }
                client.PutFile(FilePath, "/" + SaveName);
                result = true;
            }
            catch (Exception ex)
            {
                result = false;
                Msg = ex.Message;
            }
            finally
            {
                client.Close();
            }
            return result;
        }
        /// <summary>
        /// 下载文件到Ftps服务器
        /// </summary>
        /// <param name="FtpIP">IP地址</param>
        /// <param name="Name">登陆用户</param>
        /// <param name="Pass">用户密码</param>
        /// <param name="FileName">要下载的文件名</param>
        /// <param name="LocaPath">本地存放地址（不包括文件名）</param>
        /// <param name="Msg">错误信息</param>
        /// <param name="SaveName">保存到本地存放地址中的文件名（默认为空，则为原文件名）</param>
        /// <param name="Port">端口号（默认21）</param>
        /// <returns>是否成功</returns>
        public static bool DownloadFile(string FtpIP, string Name, string Pass, string FileName, string LocaPath, out string Msg, string SaveName = "", int Port = 21)
        {
            bool result = false;

            FTPSClient client = GetClient(FtpIP, Name, Pass, out Msg, Port);
            if (Msg != "") { return result; }
            try
            {
                if (SaveName == "")
                {
                    SaveName = FileName;
                }
                client.GetFile("/" + FileName, LocaPath + "\\" + SaveName);
                result = true;
            }
            catch (Exception ex)
            {
                result = false;
                Msg = ex.Message;
            }
            finally
            {
                client.Close();
            }
            return result;
        }
        /// <summary>
        /// 删除Ftps服务器中的文件
        /// </summary>
        /// <param name="FtpIP">IP地址</param>
        /// <param name="Name">登陆用户</param>
        /// <param name="Pass">用户密码</param>
        /// <param name="FileName">要删除的文件名</param>
        /// <param name="Msg">错误信息</param>
        /// <param name="Port">端口号（默认21）</param>
        /// <returns>是否成功</returns>
        public static bool DeleteFile(string FtpIP, string Name, string Pass, string FileName, out string Msg, int Port = 21)
        {
            bool result = false;

            FTPSClient client = GetClient(FtpIP, Name, Pass, out Msg, Port);
            if (Msg != "") { return result; }
            try
            {
                client.DeleteFile(FileName);
                result = true;
            }
            catch (Exception ex)
            {
                result = false;
                Msg = ex.Message;
            }
            finally
            {
                client.Close();
            }
            return result;
        }
    }
}

然后，里面具体引用的类文件，我下文件的外网官网找不到了；

不过，可以在https://github.com/StingyJack/FTPSClient（不保证一定和我用的版本相同）下载，

另外，也可以下载我本人上传的资源文件，地址：https://download.youkuaiyun.com/download/caojunzhi96/11421384

前天布置的好好的，今天突然发现又不起作用了，发现报错：流不可读

实际原因是因为： "由于远程方关闭传输流，身份验证失败"，后面发现应该是FTPS服务器的SSL版本发生变化，由原来的TLS变为TLS11

在FTPSClient类文件里做如下修改即可：