使用SSL加密的FtpWebRequest举例

 

 

 

 

using System;
using System.IO;
using System.Net;
using System.Net.Security;
using System.Security.Cryptography.X509Certificates;

namespace Test
{
    class Program
    {
        static void Main(string[] args)
        {
            Uri serverUri = new Uri("ftp://xxx.xxx.xxx.xxx");
            FtpWebRequest request = (FtpWebRequest)WebRequest.Create(serverUri);            
            request.Credentials = new NetworkCredential("username", "password", "");
            request.Method = WebRequestMethods.Ftp.ListDirectoryDetails;
            //下面4行代码用于支持显示SSL（explicit SSL），.NET2.0中的FtpWebRequest不支持
            //隐式SSL（implicit SSL）。如果不用SSL，注释掉它们即可。
            request.EnableSsl = true;
            ServicePointManager.ServerCertificateValidationCallback =
                delegate(Object obj, X509Certificate certificate, X509Chain chain, SslPolicyErrors errors)
                { return true; }; 
            
            FtpWebResponse response = (FtpWebResponse)request.GetResponse();
            Stream responseStream = null;
            StreamReader readStream = null;
            try
            {
                responseStream = response.GetResponseStream();
                readStream = new StreamReader(responseStream, System.Text.Encoding.UTF8);
                if (readStream != null)
                    Console.WriteLine(readStream.ReadToEnd());
            }
            finally
            {
                if (readStream != null)
                    readStream.Close();
                if (response != null)
                    response.Close();
            }
            Console.ReadLine();
        }
    }
}