問題描述

上傳表格:

<form asp-action="Upload" asp-controller="Uploads" enctype="multipart/form-data">
<input type="file" name="file" maxlength="64" />
<button type="submit">Upload</button>

控制器/文件上傳:

public void Upload(IFormFile file){
    using (WebClient client = new WebClient())
    {
        client.Credentials = new NetworkCredential("xxxx", "xxxx");
        client.UploadFile("ftp://xxxx.xxxx.net.uk/web/wwwroot/images/", "STOR", file.FileName);
    }
}

問題:

出現錯誤找不到文件 xxxx".我知道問題是它試圖找到文件，因為它是 FTP 服務器上的 "C:path-to-vs-filesexamplePhoto.jpg" ，這顯然不存在.我一直在這里查看許多問題/答案，我認為我需要某種 FileStream 讀/寫代碼.但我目前還沒有完全理解這個過程.

Getting error "Could not find file xxxx". I understand the issue is that it's trying to find the file as it is "C:path-to-vs-filesexamplePhoto.jpg" on the FTP server, which obviously doesn't exist. I've been looking at many questions/answers on here and I think I need some kind of FileStream read/write cod. But I'm not fully understanding the process at the moment.

推薦答案

使用 IFormFile.CopyTo 或 IFormFile.OpenReadStream 來訪問上傳文件的內容.

Use IFormFile.CopyTo or IFormFile.OpenReadStream to access the contents of the uploaded file.

雖然 WebClient 無法使用 Stream 接口.所以你最好使用 FtpWebRequest:

Though WebClient cannot work with Stream interface. So you better use FtpWebRequest:

public void Upload(IFormFile file)
{
    FtpWebRequest request =
        (FtpWebRequest)WebRequest.Create("ftp://ftp.example.com/remote/path/file.zip");
    request.Credentials = new NetworkCredential("username", "password");
    request.Method = WebRequestMethods.Ftp.UploadFile;  

    using (Stream ftpStream = request.GetRequestStream())
    {
        file.CopyTo(ftpStream);
    }
}

這篇關于將通過 HTTP 上傳到 ASP.NET 的文件上傳到 C# 中的 FTP 服務器的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！