.net - 从.Net Core api返回html文件

Question

我正在尝试使用 this和 this获取 html 文件作为输出，但得到错误 500

我的应用程序的目标是基于api请求，服务器将生成请求的输出作为html文件，并将其发送给用户请求。

使用的代码是:

using Microsoft.AspNetCore.Mvc;  // for Controller, [Route], [HttpPost], [FromBody], JsonResult and Json
using System.IO;   // for MemoryStream
using System.Net.Http; // for HttpResponseMessage
using System.Net;  // for HttpStatusCode
using System.Net.Http.Headers;  // for MediaTypeHeaderValue

namespace server{
    [Route("api/[controller]")]
    public class FileController : Controller{
    [HttpGet]
    public HttpResponseMessage Get()
    {
        string r = @" 
            Hello There
        ";
        var stream = new MemoryStream();
        StreamWriter writer = new StreamWriter(stream);
        writer.Write(r);
        writer.Flush();
        stream.Position = 0;

       // processing the stream.
       byte[] Content = convert.StreamToByteArray(stream);
       var result = new HttpResponseMessage(HttpStatusCode.OK);


        result.Content.Headers.ContentDisposition =
            new System.Net.Http.Headers.ContentDispositionHeaderValue("attachment")
        {
            FileName = "welcome.html"
        };
        result.Content.Headers.ContentType =
            new MediaTypeHeaderValue("application/octet-stream");

        return result;
    }
  }
}

和:

using System.IO;  // for MemoryStream

namespace server{
    class convert{
            public static byte[] StreamToByteArray(Stream inputStream)
            {
                byte[] bytes = new byte[16384];
                using (MemoryStream memoryStream = new MemoryStream())
                {
                    int count;
                    while ((count = inputStream.Read(bytes, 0, bytes.Length)) > 0)
                    {
                        memoryStream.Write(bytes, 0, count);
                    }
                    return memoryStream.ToArray();
                }
            }
    }
}

我需要返回的结果是一个 .html 文件，这样我就可以使用 JavaScript 在新的浏览器窗口中打开它，例如 var a = window.open(returnedFile, "name");

Answer 1

对于 .NET Core 2 API，您可以使用此

return Content(html, "text/html", Encoding.UTF8);