我正在尝试从一台FTP服务器下载文件，然后将其上传到其他FTP。到目前为止，我只想知道如何通过FTP上传本地文件和下载XML。
以下是将本地文件上传到FTP的方法：
private void UploadLocalFile(string sourceFileLocation, string targetFileName)
{
try
{
string ftpServerIP = "ftp://testing.com/ContentManagementSystem/"+ Company +"/Prod";
string ftpUserID = Username;
string ftpPassword = Password;
string filename = "ftp://" + ftpServerIP + "/" + targetFileName;
FtpWebRequest ftpReq = (FtpWebRequest)WebRequest.Create(filename);
ftpReq.UseBinary = true;
ftpReq.Method = WebRequestMethods.Ftp.UploadFile;
ftpReq.Credentials = new NetworkCredential(ftpUserID, ftpPassword);
ftpReq.Proxy = null;
byte[] b = File.ReadAllBytes(sourceFileLocation);
ftpReq.ContentLength = b.Length;
using (Stream s = ftpReq.GetRequestStream())
{
s.Write(b, 0, b.Length);
}
}
catch (WebException ex)
{
String status = ((FtpWebResponse)ex.Response).StatusDescription;
Console.WriteLine(status);
}
}
这是我从FTP下载XML的方法：
private static XmlDocument DownloadFtpXml(string uri, int retryLimit)
{
var returnDocument = new XmlDocument();
try
{
FtpWebRequest request = (FtpWebRequest)WebRequest.Create(uri);
request.Method = WebRequestMethods.Ftp.DownloadFile;
request.Credentials = new NetworkCredential(Username, Password);
request.UsePassive = true;
request.Proxy = new WebProxy();
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
using (Stream responseStream = response.GetResponseStream())
{
returnDocument.Load(responseStream);
}
}
catch (WebException ex)
{
if (ex.Response != null)
{
FtpWebResponse response = (FtpWebResponse)ex.Response;
if (response.StatusCode == FtpStatusCode.ActionNotTakenFileUnavailable)
{
}
}
}
return returnDocument;
}
我不确定该怎么做，但我试图创建一种方法，从一个FTP下载内容（内容将是一个视频或图像），然后转身上传我和我＃39;刚刚下载（我已经在内存中保存）到另一台FTP。
请帮忙！
答案 0 :(得分：1)
你太近了！使用流将下载转换为字节数组以进行上载。
我最近做了一个程序就是这样做的！只要目标目录中没有同名文件，这将把所有文件从一个FTP目录复制到另一个FTP目录。如果你只想复制一个文件，只需使用copyFile，toByteArray和上传函数，就很容易改变：
using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
namespace Copy_From_FTP
{
class Program
{
public static void Main(string[] args)
{
List<FileName> sourceFileList = new List<FileName>();
List<FileName> targetFileList = new List<FileName>();
//string targetURI = ftp://www.target.com
//string targetUser = userName
//string targetPass = passWord
//string sourceURI = ftp://www.source.com
//string sourceUser = userName
//string sourcePass = passWord
getFileLists(sourceURI, sourceUser, sourcePass, sourceFileList, targetURI, targetUser, targetPass, targetFileList);
Console.WriteLine(sourceFileList.Count + " files found!");
CheckLists(sourceFileList, targetFileList);
targetFileList.Sort();
Console.WriteLine(sourceFileList.Count + " unique files on sourceURI"+Environment.NewLine+"Attempting to move them.");
foreach(var file in sourceFileList)
{
try
{
CopyFile(file.fName, sourceURI, sourceUser, sourcePass, targetURI, targetUser, targetPass);
}
catch
{
Console.WriteLine("There was move error with : "+file.fName);
}
}
}
public class FileName : IComparable<FileName>
{
public string fName { get; set; }
public int CompareTo(FileName other)
{
return fName.CompareTo(other.fName);
}
}
public static void CheckLists(List<FileName> sourceFileList, List<FileName> targetFileList)
{
for (int i = 0; i < sourceFileList.Count;i++ )
{
if (targetFileList.BinarySearch(sourceFileList[i]) > 0)
{
sourceFileList.RemoveAt(i);
i--;
}
}
}
public static void getFileLists(string sourceURI, string sourceUser, string sourcePass, List<FileName> sourceFileList,string targetURI, string targetUser, string targetPass, List<FileName> targetFileList)
{
string line = "";
/////////Source FileList
FtpWebRequest sourceRequest;
sourceRequest = (FtpWebRequest)WebRequest.Create(sourceURI);
sourceRequest.Credentials = new NetworkCredential(sourceUser, sourcePass);
sourceRequest.Method = WebRequestMethods.Ftp.ListDirectory;
sourceRequest.UseBinary = true;
sourceRequest.KeepAlive = false;
sourceRequest.Timeout = -1;
sourceRequest.UsePassive = true;
FtpWebResponse sourceRespone = (FtpWebResponse)sourceRequest.GetResponse();
//Creates a list(fileList) of the file names
using (Stream responseStream = sourceRespone.GetResponseStream())
{
using (StreamReader reader = new StreamReader(responseStream))
{
line = reader.ReadLine();
while (line != null)
{
var fileName = new FileName
{
fName = line
};
sourceFileList.Add(fileName);
line = reader.ReadLine();
}
}
}
/////////////Target FileList
FtpWebRequest targetRequest;
targetRequest = (FtpWebRequest)WebRequest.Create(targetURI);
targetRequest.Credentials = new NetworkCredential(targetUser, targetPass);
targetRequest.Method = WebRequestMethods.Ftp.ListDirectory;
targetRequest.UseBinary = true;
targetRequest.KeepAlive = false;
targetRequest.Timeout = -1;
targetRequest.UsePassive = true;
FtpWebResponse targetResponse = (FtpWebResponse)targetRequest.GetResponse();
//Creates a list(fileList) of the file names
using (Stream responseStream = targetResponse.GetResponseStream())
{
using (StreamReader reader = new StreamReader(responseStream))
{
line = reader.ReadLine();
while (line != null)
{
var fileName = new FileName
{
fName = line
};
targetFileList.Add(fileName);
line = reader.ReadLine();
}
}
}
}
public static void CopyFile(string fileName, string sourceURI, string sourceUser, string sourcePass,string targetURI, string targetUser, string targetPass )
{
try
{
FtpWebRequest request = (FtpWebRequest)WebRequest.Create(sourceURI + fileName);
request.Method = WebRequestMethods.Ftp.DownloadFile;
request.Credentials = new NetworkCredential(sourceUser, sourcePass);
FtpWebResponse response = (FtpWebResponse)request.GetResponse();
Stream responseStream = response.GetResponseStream();
Upload(fileName, ToByteArray(responseStream),targetURI,targetUser, targetPass);
responseStream.Close();
}
catch
{
Console.WriteLine("There was an error with :" + fileName);
}
}
public static Byte[] ToByteArray(Stream stream)
{
MemoryStream ms = new MemoryStream();
byte[] chunk = new byte[4096];
int bytesRead;
while ((bytesRead = stream.Read(chunk, 0, chunk.Length)) > 0)
{
ms.Write(chunk, 0, bytesRead);
}
return ms.ToArray();
}
public static bool Upload(string FileName, byte[] Image, string targetURI,string targetUser, string targetPass)
{
try
{
FtpWebRequest clsRequest = (FtpWebRequest)WebRequest.Create(targetURI+FileName);
clsRequest.Credentials = new NetworkCredential(targetUser, targetPass);
clsRequest.Method = WebRequestMethods.Ftp.UploadFile;
Stream clsStream = clsRequest.GetRequestStream();
clsStream.Write(Image, 0, Image.Length);
clsStream.Close();
clsStream.Dispose();
return true;
}
catch
{
return false;
}
}
}
}
如果您使用具有特殊编码的内容（如文本文档），则可能会遇到问题。这可以通过上传功能的使用方式来改变。如果您正在处理文本文件，请使用：
System.Text.Encoding.UTF8.GetBytes(responseStream)
而不是
ToByteArray(responseStream)
在执行上传之前，您可以对文件进行简单的扩展检查。