C# WebClient进行FTP服务上传文件和下载文件

定义WebClient使用的操作类: 操作类名称WebUpDown

WebClient上传文件至Ftp服务:

////

        /// WebClient上传文件至Ftp服务

        ///  

        /// 文件名，全路径格式 

        /// 服务器文件夹路径 

        public static void UpLoadFile(string fileNamePath, string uriString)

        {

            string NewFileName = DateTime.Now.ToString("yyMMddhhmmss") + DateTime.Now.Millisecond.ToString() + fileNamePath.Substring(fileNamePath.LastIndexOf("."));

            uriString = uriString + NewFileName;

            //创建WebClient实例 

            WebClient myWebClient = new WebClient();

            //指定用户名和密码

            myWebClient.Credentials = new NetworkCredential("username", "password");

            try

            {

                //上传文件

                myWebClient.UploadFile(new Uri(uriString), fileNamePath);

            }

            catch (Exception ex)

            {

                MessageBox.Show("文件上传失败，失败原因:" + ex.Message);

            }

            finally

            {

                myWebClient.Dispose();

            }

        } 

下载服务器文件至客户端:

        ///

        /// 下载服务器文件至客户端 

        ///  

        /// 被下载的文件地址，绝对路径 

        /// 另存放的目录 

        public static void Download(string URL, string Dir)

        {

            WebClient client = new WebClient();

            client.Credentials = new NetworkCredential("username "," password ");

            string Path = Dir;   //另存为的绝对路径＋文件名 

            try

            {

                client.DownloadFile(new Uri(URL), Path);

            }

            catch (Exception ex)

            {

                MessageBox.Show("文件下载失败，失败原因:" + ex.Message);

            }

            finally

            {

                client.Dispose();

            }

        }

调用方法:

///

        /// WebClient上传到Ftp服务

        ///

        ///

        ///

        private void Button_Click_5(object sender, RoutedEventArgs e)

        {

            WebUpDown.UpLoadFile(@"C:\123.txt",@"ftp://localhost//");

        }

        ///

        /// WebClient使用Ftp服务下载到客户端

        ///

        ///

        ///

        private void Button_Click_6(object sender, RoutedEventArgs e)

        {

            WebUpDown.Download(@"ftp://localhost//123.txt", @"C:\123.txt");

        }