从字符串或流上传文件到FTP服务器

本文关键字：文件 FTP 服务器 字符串 | 更新日期: 2023-09-27 18:04:46

我试图在FTP服务器上创建一个文件，但我所拥有的只是字符串或数据流和应该创建的文件名。是否有一种方法可以从流或字符串在服务器上创建文件(我没有权限创建本地文件)?

string location = "ftp://xxx.xxx.xxx.xxx:21/TestLocation/Test.csv";
WebRequest ftpRequest = WebRequest.Create(location);
ftpRequest.Method = WebRequestMethods.Ftp.UploadFile;
ftpRequest.Credentials = new NetworkCredential(userName, password);
string data = csv.getData();
MemoryStream stream = csv.getStream();
//Magic
using (var response = (FtpWebResponse)ftpRequest.GetResponse()) { }

从字符串或流上传文件到FTP服务器

将您的流复制到FTP请求流:

Stream requestStream = ftpRequest.GetRequestStream();
stream.CopyTo(requestStream);
requestStream.Close();

对于字符串(假设内容是文本):

byte[] bytes = Encoding.UTF8.GetBytes(data);
using (Stream requestStream = request.GetRequestStream())
{
    requestStream.Write(bytes, 0, bytes.Length);
}

或者更好地使用StreamWriter:

using (Stream requestStream = request.GetRequestStream())
using (StreamWriter writer = new StreamWriter(requestStream, Encoding.UTF8))
{
    writer.Write(data);
}

如果内容是文本，你应该使用文本模式:

request.UseBinary = false;

设置此参数用于将xml文件发送到FTP。它工作得很好。我想这正是你所需要的。

 FtpWebRequest request = (FtpWebRequest)WebRequest.Create("ftp://XXXXXXXXXX//" + filename);
            request.Method = WebRequestMethods.Ftp.UploadFile;
            request.Credentials = new NetworkCredential("user", "pwd");
            request.UsePassive = true;
            request.UseBinary = true;
            request.KeepAlive = true;
            StreamReader sourceStream = new StreamReader(file);
            byte[] fileContents = Encoding.UTF8.GetBytes(sourceStream.ReadToEnd());
            sourceStream.Close();
            request.ContentLength = fileContents.Length;
            Stream requestStream = request.GetRequestStream();
            requestStream.Write(fileContents, 0, fileContents.Length);
            requestStream.Close();
            FtpWebResponse response = (FtpWebResponse)request.GetResponse();

问候!

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