Question

这是我的代码我有一个包含许多zip个文件的FTP。每个zip文件都有一个XML，名称相同。我想解析这些xml文件。

我做的是这个：

获取FTP中所有zip文件的列表，并将名称保存在此变量directories中。
现在我要打开每个zip文件，其名称在directories列表中。我做到了。
```
foreach (string fileNameInFTP in directories)                   
{
}
```

现在要阅读该zip文件的内容，我试过了：。

string fileName =  FTPAddress + fileNameInFTP;
using (var file = File.OpenRead(fileName))
using (var zip = new ZipArchive(file, ZipArchiveMode.Read))
{
      foreach (var entry in zip.Entries)
      {
           using (var stream = entry.Open())
           {
                  // do whatever we want with stream
                  // ...
           }
      }
 }

我在此行中遇到此异常The given path's format is not supported.： using (var file = File.OpenRead("ftp://" +FTPAddress +"/" + fileNameInFTP))可以帮助你

Answer 1

您应该使用类似的东西，而不是尝试使用File.OpenRead进行远程FTP文件下载。

http://msdn.microsoft.com/en-us/library/ms229711%28v=vs.110%29.aspx

// Get the object used to communicate with the server.
FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://www.contoso.com/test.htm");
request.Method = WebRequestMethods.Ftp.DownloadFile;

// This example assumes the FTP site uses anonymous logon.
request.Credentials = new NetworkCredential ("anonymous","janeDoe@contoso.com");

FtpWebResponse response = (FtpWebResponse)request.GetResponse();

Stream responseStream = response.GetResponseStream();

using (var zip = new ZipArchive(responseStream , ZipArchiveMode.Read))
{
   //Loops through each file in the zip that has the ".xml" extension 
   foreach (var entry in zip.Entries.Where(x=> (Path.GetExtension(x.Name) ?? "").ToLower() ==".xml"))
   {
        using (var stream = entry.Open())
        {
            //Load xml file and do whatever you like with it.
            var xmlDocument = XDocument.Load(stream);
        }
    }
}

Console.WriteLine("Download Complete, status {0}", response.StatusDescription);

response.Close();

Answer 2

您无法使用File IO打开FTP流，以下是我们如何使用.NET中的WebRequest打开FTP的示例：

    private static void Main(string[] args)
    {
        var ftp = WebRequest.Create(@"ftp://ftp.microsoft.com/softlib/MSLFILES/aspwebwiz2k.zip");
        //ftp.Credentials=new NetworkCredential("anonymous","anonymous");
        var response=ftp.GetResponse();
        var stream=response.GetResponseStream();
        var ms = ToMemoryStream(stream);

        var archive = new ZipArchive(ms, ZipArchiveMode.Read);
        var entry=archive.GetEntry("file name here");

        var doc=XDocument.Load(entry.Open());
    }

    public static MemoryStream ToMemoryStream( Stream stream)
    {
        var memoryStream = new MemoryStream();
        var buffer = new byte[4096];

        while (true)
        {
            var readCount = stream.Read(buffer, 0, buffer.Length);
            if (readCount == 0)
                break;

            memoryStream.Write(buffer, 0, readCount);
        }

        memoryStream.Position = 0;
        return memoryStream;
    }

C＃FTP不支持给定路径的格式

2 个答案: