asp.net 怎么检测一个ftp ip 用户名 密码 是否正确？

Question

asp.net 怎么检测一个ftp ip 用户名 密码 是否正确？ftp服务器正常。本人不会asp.net,请各位高手尽量给出全的代码，谢谢！asp 貌似是无法实现的不写组件的话

Answer 1

给你一个C#的事例吧using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Net;
using System.IO;
using System.Text;
using System.Windows.Forms;
namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private string ftpServerIP="";
        private string ftpUserID="";
        private string ftpPassword="";        private void button1_Click(object sender, EventArgs e)
        {        }
        
        private void Download(string filePath, string fileName)
        {
            FtpWebRequest reqFTP;
            try
            {
                FileStream outputStream = new FileStream((filePath + "\\" + fileName), FileMode.Create);
                reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://" + ftpServerIP+fileName));
                reqFTP.Method = WebRequestMethods.Ftp.DownloadFile;
                reqFTP.UseBinary = true;
                reqFTP.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
                FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();
                Stream ftpStream = response.GetResponseStream();
                long cl = response.ContentLength;
                int bufferSize = 2048;
                int readCount;
                byte[] buffer = new byte[bufferSize];
                readCount = ftpStream.Read(buffer, 0, bufferSize);
                while (readCount > 0)
                {
                    outputStream.Write(buffer, 0, readCount);
                    readCount = ftpStream.Read(buffer, 0, bufferSize);
                }
                ftpStream.Close();
                outputStream.Close();
                response.Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }        }
    }}

Answer 2

使用在程序中调用FTP控件测试下连接

Answer 3

http://blog.sina.com.cn/s/blog_5607239a0100c2jy.html