Question

我正在尝试了解FtpWebRequest的MSDN文档，更具体地说，how to upload using FTP and C#

using System;
using System.IO;
using System.Net;
using System.Text;

namespace Examples.System.Net
{
    public class WebRequestGetExample
    {
        public static void Main ()
        {
            // Get the object used to communicate with the server.
            FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://www.contoso.com/test.htm");
            request.Method = WebRequestMethods.Ftp.UploadFile;

            // This example assumes the FTP site uses anonymous logon.
            request.Credentials = new NetworkCredential ("anonymous","janeDoe@contoso.com");

            // Copy the contents of the file to the request stream.
            StreamReader sourceStream = new StreamReader("testfile.txt");
            byte [] fileContents = Encoding.UTF8.GetBytes(sourceStream.ReadToEnd());
            sourceStream.Close();
            request.ContentLength = fileContents.Length;

            Stream requestStream = request.GetRequestStream();
            requestStream.Write(fileContents, 0, fileContents.Length);
            requestStream.Close();

            FtpWebResponse response = (FtpWebResponse)request.GetResponse();

            Console.WriteLine("Upload File Complete, status {0}", response.StatusDescription);

            response.Close();
            }
        }
    }
}

在上面的代码中，它们引用了2种文件类型。我是否正确地假设testfile.txt是'源'文件（在本地计算机上）并且test.htm也将重命名testfile.txt？

Answer 1

是的 - 您正在将上传到 test.htm，从 testfile.txt加载数据。你可以告诉我，因为test.htm是URL的一部分（因此是远程的），而testfile.txt只是通过在文件上创建StreamReader来加载。

（值得注意的是，顺便提一下，这个代码在各方面都非常糟糕 - 特别是在资源处置方面。不要将其视为体现最佳实践......）

FtpWebRequest - MSDN示例问题

1 个答案: