帮助上传到FTP

问题描述

我收到此错误:

I get this error:

"System.dll中发生了类型为'System.Net.WebException'的未处理的异常

"An unhandled exception of type 'System.Net.WebException' occurred in System.dll

附加信息:所请求的URI对于此FTP命令无效."

Additional information: The requested URI is invalid for this FTP command."

我仍无法发布屏幕截图，但是它发生在以下行:"Stream requestStream = request.GetRequestStream();"

 I cant post a screenshot yet but it occurs for this line: "Stream requestStream = request.GetRequestStream();"

该程序读取和/或写入文本文件，然后上传到ftp.

The program reads and/or writes a text file and uploads to ftp.

我正在从msdn站点使用此代码:

I am using this code from the msdn site:

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","[email protected]");

            // 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();
            }
        }
    }
}

这是完整的代码，少了登录凭据.

Here is the full code less login credentials.

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.IO;
using System.Data.SqlClient;
using System.Net;



namespace Streamer
{
    public partial class Form1 : Form
    {
        private string User = "user";
        private string Password = "password";

        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            OpenFileDialog of = new OpenFileDialog();
            of.ShowDialog();
            textBox1.Text = of.FileName;
        }

        private void button2_Click(object sender, EventArgs e)
        {
            StreamReader sr = new StreamReader(textBox1.Text);
            textBox2.Text = sr.ReadToEnd();
            sr.Close();
        }

        private void button3_Click(object sender, EventArgs e)
        {
            StreamWriter sw = new StreamWriter(textBox1.Text, false);//writeToFileLocation
            sw.WriteLine(textBox3.Text);//writeFrom
            sw.Close();
        }

        private void textBox1_TextChanged(object sender, EventArgs e)
        {

        }

        private void textBox2_TextChanged(object sender, EventArgs e)
        {

        }

        private void textBox3_TextChanged(object sender, EventArgs e)
        {

        }

        private void button4_Click(object sender, EventArgs e)

        {

            // StreamWriter sw = new StreamWriter(textBox1.Text, false);//writeToFileLocation
            // sw.WriteLine(textBox3.Text);//writeFrom
            //sw.Close();
            // Get the object used to communicate with the server.
            // Get the object used to communicate with the server.
            // Get the object used to communicate with the server.
            FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://files.000webhost.com/public_html/members/zones/" + textBox3.Text.Trim());
            request.Method = WebRequestMethods.Ftp.UploadFile;

            // This example assumes the FTP site uses anonymous logon.
            request.Credentials = new NetworkCredential(this.User, this.Password);

            // Copy the contents of the file to the request stream.
            StreamReader sourceStream = new StreamReader("streamer.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();
            //





        }


}
}

推荐答案

>>>>" FtpWebRequest request =(FtpWebRequest)WebRequest.Create(< " + textBox3.Text.Trim());

>>"FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://files.000webhost.com/public_html/members/zones/" + textBox3.Text.Trim());

感谢您的信息. textBox3的值是什么?上传FTP文件需要一个以文件名结尾的URL.因此您的网址应该是这样.

Thank you for your post. What is the value of textBox3? FTP file upload need a URL which end with a file name.  So your URL should be like this.

ftp://files.000webhost.com/public_html/members/zones/streamer.txt

最好的问候，
王丽

Best Regards,
Li Wang

这篇关于帮助上传到FTP的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！