Vb.net 删除名称包含字符串（匹配掩码）的FTP文件

我想删除FTP服务器上的所有文件，其名称包含特定字符串

例如，我在FTP上有以下文件：

pippo_1.jpg
pippo_2.jpg
pippo_3.jpg
pluto_1.jpg

我想删除所有包含

pippo

的文件

如何通过一次操作删除所有这些文件

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谢谢大家!

在.NET framework中，FTP协议的任何实现都不允许在单个操作中执行此操作

您必须列出远程目录，筛选要删除的文件并逐个删除

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如果您真的想在单个操作中实现这一点，您必须使用第三方库，该库支持带有文件掩码的操作。例如，允许使用以下选项：

（我是WinSCP的作者）

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如果您不想使用第三方库，请按照上述建议执行：

Dim url As String = "ftp://ftp.example.com/remote/path/"
Dim credentials As NetworkCredential = New NetworkCredential("username", "password")

Dim listRequest As FtpWebRequest = WebRequest.Create(url)
listRequest.Method = WebRequestMethods.Ftp.ListDirectory
listRequest.Credentials = credentials

Using listResponse As FtpWebResponse = listRequest.GetResponse(),
      listStream As Stream = listResponse.GetResponseStream(),
      listReader As StreamReader = New StreamReader(listStream)
    While Not listReader.EndOfStream
        Dim filename As String = listReader.ReadLine()

        If filename.StartsWith("pippo") Then
            Dim deleteRequest As FtpWebRequest = WebRequest.Create(url + filename)
            deleteRequest.Method = WebRequestMethods.Ftp.DeleteFile
            deleteRequest.Credentials = credentials
            deleteRequest.GetResponse()
        End If
    End While
End Using

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我尝试用WinSCP解决问题，当我打开连接时，我收到以下错误：连接失败。连接失败。所有凭据都是正确的。我尝试连接WinSCP.exe，它工作得非常好。我认为问题与传输协议有关。你有什么建议吗？谢谢@MartinPrikryl您是如何连接到

winscp.exe

？使用脚本还是GUI？如果是脚本，您使用了什么命令？如果是GUI，您选择了什么协议？您可以使用WinSCP GUI。

Dim url As String = "ftp://ftp.example.com/remote/path/"
Dim credentials As NetworkCredential = New NetworkCredential("username", "password")

Dim listRequest As FtpWebRequest = WebRequest.Create(url)
listRequest.Method = WebRequestMethods.Ftp.ListDirectory
listRequest.Credentials = credentials

Using listResponse As FtpWebResponse = listRequest.GetResponse(),
      listStream As Stream = listResponse.GetResponseStream(),
      listReader As StreamReader = New StreamReader(listStream)
    While Not listReader.EndOfStream
        Dim filename As String = listReader.ReadLine()

        If filename.StartsWith("pippo") Then
            Dim deleteRequest As FtpWebRequest = WebRequest.Create(url + filename)
            deleteRequest.Method = WebRequestMethods.Ftp.DeleteFile
            deleteRequest.Credentials = credentials
            deleteRequest.GetResponse()
        End If
    End While
End Using