.net core 2.0 虚拟目录下载 Android Apk 等文件

当Android 文件 Apk 放在Asp.net core wwwroot 虚拟目录下面、访问是 404，设置Content-Type类型

app.UseStaticFiles();

            //设置实际目录与虚拟目录  
            app.UseStaticFiles(new StaticFileOptions
            {
                FileProvider = new PhysicalFileProvider(Path.Combine(Directory.GetCurrentDirectory(), @"wwwroot/Files")),
                RequestPath = new PathString("/jfiles"),
             
                //设置Android APK 下载
                ContentTypeProvider = new FileExtensionContentTypeProvider(new Dictionary<string, string>
                {
                    { ".apk","application/vnd.android.package-archive"},
                    { ".nupkg","application/zip"}
                })
            });

app.UseStaticFiles(new StaticFileOptions()
{
    ContentTypeProvider = new FileExtensionContentTypeProvider()
    {
        Mappings = {[".glb"] = "application/octect-stream"}
    }
});