用C# 如何从FTP上下载文件?

Question

WebClient request = new WebClient();
request.Credentials = new NetworkCredential("d","d");
request.DownloadFile("ftp://172.17.2.158/aa.xls",@"D:\abc.xls");FTP:用DownloadFile方法是否能下载?

Answer 1

可以!
request.DownloadFile("ftp://username:[email protected]/aa.xls",@"D:\abc.xls");

Answer 2

flyaqiao(孤风捉影) 谢谢,但是还是不好用

Answer 3

// 传一个uri对象进来就可以了
public bool DownLoadFileFromServer(Uri serverUri)
        {
            string fileName = @"c:\aa.txt";       // Be saved local file            //*************************************************************
            // The serverUri parameter should start with the ftp:// scheme.
            //*************************************************************            
            if (serverUri.Scheme != Uri.UriSchemeFtp)
            {
                return false;
            }
            //*************************************************************
            // Get the object used to communicate with the server.
            //************************************************************* 
            WebClient request = new WebClient();            //*************************************************************
            // This example assumes the FTP site uses anonymous logon.
            //************************************************************* 
            request.Credentials = new NetworkCredential("wangjianfei", "1");
            try
            {
                request.DownloadFile(serverUri, fileName);        
                byte[] newFileData = request.DownloadData(serverUri.ToString());
                
                //*************************************************************
                // Display the downloaded data.
                //*************************************************************
                string download = Encoding.ASCII.GetString(newFileData);
                Console.WriteLine(download);                string fileString = System.Text.Encoding.UTF8.GetString(newFileData);
                Console.WriteLine(fileString);
            }
            catch (WebException e)
            {
                Console.WriteLine(e.ToString());
            }
            return true;
        }