使用MVC Core下载文件 [英] Download File using MVC Core

问题描述

我找不到使用MVC Core下载文件的参考.

I cannot find a reference to downloading a file using MVC Core.

我们只有一个exe文件供会员从我们的网站下载.过去我们放

We have a single exe file for members to download from our website. In the past we have put

<a href=(file path)> Download < /a>供我们的用户单击.我想按照

<a href=(file path)> Download < /a> for our users to click. I would like to do something equivalent in MVC Core along the lines of

<a href=@ViewData["DownloadLink"]> Download < /a>

使用DownloadLink填充文件路径.

with DownloadLink populated with the file path.

public class DownloadController : Controller
{
    [HttpGet]
    public IActionResult Index()
    {
        ViewData["DownloadLink"] = ($"~/Downloads/{V9.Version}.exe");
        return View();
    }
}

`

链接<a href=@ViewData["DownloadLink"]> Download < /a>获取正确的路径，但是单击时仅在地址栏中呈现该路径.有没有设置下载链接的简单方法?

The link <a href=@ViewData["DownloadLink"]> Download < /a> gets the correct path, but when clicked only renders the path in the address bar. Is there a simple way to set a download link?

推荐答案

我使用了

I used this answer posted by @Tieson T to come up with this solution

    public FileResult Download()
    {
        var fileName = $"{V9.Version}.exe";
        var filepath = $"Downloads/{fileName}";
        byte[] fileBytes = System.IO.File.ReadAllBytes(filepath);
        return File(fileBytes, "application/x-msdownload", fileName);
    }

现在是视图

<a asp-action="Download" asp->
Download

@Ageonix关于不要求〜进入wwwroot也是正确的

@Ageonix was also correct about not requiring the ~ to get to wwwroot

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