MVC显示图片

项目需要在MVC下显示图片

首先创建一个ImageResult

 public class ImageResult : ActionResult
    {
        public ImageResult() { }



        public byte[] byteStream;



        //重写ExecuteResult

        public override void ExecuteResult(ControllerContext context)
        {

            // 设置响应设置

            context.HttpContext.Response.ContentType = "image/jpeg";

            context.HttpContext.Response.Cache.SetCacheability(System.Web.HttpCacheability.Public);

            context.HttpContext.Response.BufferOutput = false;

            // 将图像流写入响应流中
            context.HttpContext.Response.OutputStream.Write(byteStream, 0, Convert.ToInt32(byteStream.Length));

        }

在Controller的Action

    public ActionResult GetImage(string imageUrl)
        {
            if (!System.IO.File.Exists(imageUrl))
            {
                return null;
            }

            System.IO.FileStream fileStream = new System.IO.FileStream(imageUrl, System.IO.FileMode.Open);
            byte[] bytes = new byte[fileStream.Length];
            fileStream.Read(bytes,0,bytes.Length);
            fileStream.Close();


            return new ImageResult(){byteStream=bytes};
        }

Html代码：

<img src="/Product/GetImage/?imageUrl=路径"/>