ftp 操作

确定目录存在

using System.Net;
/// <summary>
/// 确定ftp当前目录存在
/// </summary>
/// <param name="dir"></param>
private void FtpDirectoryExit(string dir)
{
    if (!dir.EndsWith("/"))
    {
        dir += "/";
    }
    var req = (FtpWebRequest)WebRequest.Create(dir);
    req.Method = WebRequestMethods.Ftp.MakeDirectory;
    req.Credentials = new NetworkCredential(_user, _password);
    using var response = (FtpWebResponse)req.GetResponse();
    Console.WriteLine("FtpCreateDirectory: " + dir);
}

文件上传

/// <summary>
/// 文件上传
/// </summary>
/// <param name="path">本地路径</param>
/// <returns></returns>
private Upload(string path)
{
    try
    {
        using (var client = new WebClient())
        {
            client.Credentials = new NetworkCredential(_user, _password);
            string fileName = Path.GetFileName(path);
            var url = Path.Combine(_rootUrl, DateTime.Now.ToString("yy/MM/dd/HHmmssfff"), fileName);
            var uri = new Uri(url);
            client.UploadProgressChanged += Client_UploadProgressChanged;
            client.UploadFileCompleted += Client_UploadFileCompleted;
            client.UploadFileAsync(uri, fileName);
        }
    }
    catch (Exception ex)
    {
        Console.WriteLine(ex.Message);
    }
}

private void Client_UploadProgressChanged(object sender, UploadProgressChangedEventArgs e)
{
    Console.WriteLine($"{e.BytesSent}/{e.ProgressPercentage}");
}

private void Client_UploadFileCompleted(object sender, UploadFileCompletedEventArgs e)
{
    if (!e.Cancelled)
    {
        Console.WriteLine("上传成功！");
    }
}