Web API 向浏览器返回 HttpResponseMessage 的描述

Question

此代码应该会导致文件下载...

public HttpResponseMessage Export()
{
    var byteArray = Encoding.UTF8.GetBytes("Hello World!");

    var stream = new MemoryStream(byteArray);

    var result = new HttpResponseMessage(HttpStatusCode.OK)
    {
        Content = new StreamContent(stream),
    };

    result.Content.Headers.ContentDisposition = new ContentDispositionHeaderValue("attachment")
    {
        FileName = "myFile.csv"
    };

    result.Content.Headers.ContentType = new MediaTypeHeaderValue("text/csv");

    return result;
}

相反，我收到了这条消息...

{"version":{"major":1,"minor":1,"build":-1,"revision":-1,"majorRevision":-1,"minorRevision":-1}, "content":{"headers":[]},"statusCode":200,"reasonPhrase":"OK","headers":[],"requestMessage":null,"isSuccessStatusCode":true}

我做错了什么？

Answer 1

public IActionResult Export()
{
    var byteArray = Encoding.UTF8.GetBytes("Hello World!");

    var stream = new MemoryStream(byteArray);

    return File(stream, "myFile.csv", "text/csv");
}