Question

我正在使用下面的代码将zip文件上传到我的ftp服务器：

string zipPath = @"d:\files\start.zip";
string ftpPath = ("ftp://######/start.zip");


WebRequest request = WebRequest.Create(ftpPath);
request.Method = WebRequestMethods.Ftp.UploadFile;
request.Credentials = new NetworkCredential("######", "######");

StreamReader sourceStream = new StreamReader(zipPath);
byte[] fileContents = Encoding.Unicode.GetBytes(sourceStream.ReadToEnd());
sourceStream.Close();
request.ContentLength = fileContents.Length;

try
{
    Stream requestStream = request.GetRequestStream();
    requestStream.Write(fileContents, 0, fileContents.Length);
    requestStream.Close();

    FtpWebResponse makeFileUploadResponse = (FtpWebResponse)request.GetResponse();
}
catch
{
    MessageBox.Show("ftp failed!");
}

我的zip存档绝对有效（我可以打开它并解压缩）但是当我下载上传的zip文件时，我收到存档损坏的错误。

更新1 ：我的源代码来自MSDN文章：How to: Upload Files with FTP

Answer 1

您应该将请求转发给FtpWebRequest（如MSDN示例中所示）然后将请求指定为二进制（您正在上传二进制文件，而不是文本）。

FtpWebRequest request = (FtpWebRequest)WebRequest.Create("aa");
request.Method = WebRequestMethods.Ftp.UploadFile;
request.UseBinary = true;

Answer 2

我不能说问题是什么，但我可以提供替代解决方案。您可以使用WebClient代替WebRequest

string zipPath = @"d:\files\start.zip";
string ftpPath = ("ftp://######/start.zip");
WebClient ftpClient = new WebClient();
ftpClient.Credentials = new NetworkCredential("####", "######");
try{
    ftpClient.UploadFile(ftpPath, WebRequestMethods.Ftp.AppendFile, zipPath);
}
catch(WebException ex){
    MessageBox.Show("ftp failed");
}

C＃：ftp upload成功但下载的文件已损坏

2 个答案: