FTP 上传文件 使用 HTTP 代理时,不支持请求的 FTP 命令
本文关键字:FTP 不支持 请求 命令 代理 文件 使用 HTTP | 更新日期: 2023-09-27 18:36:20
有人可以看看下面的代码,告诉我我做错了什么。我只是在兜圈子,,,非常感谢任何指示
public class FtpWebRequestUtil
{
private static string RemoteHost;
private static string RemoteFtpPath;
public static NetworkCredential Credential = new NetworkCredential();
public FtpWebRequestUtil()
{
}
public FtpWebRequestUtil(string RemoteAddress, string RemotePath, string RemoteUser, string RemotePwd)
{
Credential.UserName = RemoteUser;
Credential.Password = RemotePwd;
RemoteHost = RemoteAddress;
RemoteFtpPath = RemotePath;
}
public string UploadFile(string localFilePath)
{
int startTime = Environment.TickCount;
// Console.WriteLine("Uploading File " + localFilePath);
try
{
FileInfo localFile = new FileInfo(localFilePath); //e.g.: c:''Test.txt
byte[] buf = new byte[2048];
int iWork;
string remoteFile = "ftp://" + RemoteHost + "/" + RemoteFtpPath + "/" + localFile.Name;
FtpWebRequest req = (FtpWebRequest) FtpWebRequest.Create(remoteFile);
// req.Proxy =
req.Credentials = Credential;
// FtpWebRequest req = (FtpWe
req.UseBinary = true;
req.KeepAlive = true;
req.Method = WebRequestMethods.Ftp.UploadFile;
StreamWriter myStreamWriter = new StreamWriter(req.GetRequestStream());
myStreamWriter.Write(new StreamReader("TestFiles''" + localFile.Name).ReadToEnd());
myStreamWriter.Close();
FtpWebResponse myFtpWebResponse = (FtpWebResponse) req.GetResponse();
Console.WriteLine("Upload File Complete, status: " + myFtpWebResponse.StatusDescription);
myFtpWebResponse.Close();
return "SUCCESS";
}
catch (Exception ex)
{
Console.WriteLine("There was an error connecting to the FTP Server.");
Console.WriteLine(ex.Message);
throw ex;
}
Console.WriteLine("Time taken for downloading file is " + (Environment.TickCount - startTime).ToString());
return "FAILURE";
}
************************ *********************************
FtpWebRequestUtil ftpClient = new FtpWebRequestUtil(FtpUrl, InputFolder, FtpUser, FtpPassword);
try
{
Thread.Sleep(5000);
ftpClient.UploadFile(UploadingFileName);
}
catch (Exception exception)
{
Assert.Fail(exception.Message);
}
finally
{
ftpClient = null;
}
}
}
req.Proxy = new WebProxy(); // initialize this FtpWebRequest property
事实证明,当配置HTTP
代理时,System.Net.FtpWebRequest
仅支持 RETR
、LIST
和 NLST
方法,并且您在代码中没有设置代理并不重要: 如果在系统代理设置中配置了HTTP
代理(不是FTP
代理)(即: 互联网选项''连接''局域网设置''代理服务器''为局域网使用代理服务器),则在尝试上传到FTP
服务器时会收到此错误。
解决方法是使用 IE 更改系统设置以关闭HTTP
代理的使用。但是,如果您有权访问受影响的代码,则解决方案是将请求的 Proxy
属性设置为 null,例如:
request.Proxy = null;
例外本身就是答案 - 它不受支持。可能您有一些阻止直接连接到FTP的HTTP代理。根据 MS 文档,如果指定的代理是 HTTP 代理,则仅支持 DownloadFile、ListDirectory 和 ListDirectoryDetails 命令 - 因此 UploadFile 不受支持。