.NET 6.0 MVC如何访问非wwwroot文件里的资源文件。即访问本地文件夹下的资源文件

1.Program下注册相关服务

app.UseStaticFiles();//使用静态文件

// ===设置额外可访问的文件夹路径===
app.UseStaticFiles(new StaticFileOptions
{
    FileProvider = new PhysicalFileProvider("D:/Image/Panorama/"),//需要访问的文件夹
    RequestPath = "/static",//转换为虚拟URL路径
    OnPrepareResponse = (c) =>
    {
        c.Context.Response.Headers.Add("Access-Control-Allow-Origin", "*");
        c.Context.Response.Headers.Add("Access-Control-Allow-Methods", "GET, POST, DELETE, PUT, OPTIONS, TRACE, HEAD, PATCH");
        c.Context.Response.Headers.Add("Access-Control-Allow-Headers", "*");
    }
});

使用:

string path = $"../static/文件名称";//资源外的文件

#region 加载本地图片，MVC显示图片的方法，不需要请忽略

public byte[] GetBytesFromImage(string filename)
{

    try
    {
        FileStream fs = new FileStream(filename, FileMode.Open, FileAccess.Read);

        int length = (int)fs.Length;

        byte[] image = new byte[length];

        fs.Read(image, 0, length);

        fs.Close();

        return image;
    }
    catch (Exception ex)
    {
        return null;
    }
}
///<img src="{{ path }}"/>访问控制器获取图片显示
public async Task<FileResult> Image()
{
    byte[] image = { };
    await Task.Run(() =>
        {

                image = GetBytesFromImage(path);
            
        });
    return new FileContentResult(image, "image/jpeg");
}
#endregion