大家帮忙已经一天了，.ashx返回图片就是不显示

Question

ImageUrl=这里直接输出路径不就得了?
难道你数据库存的是二进制的图片?
如果是,用Response.OutputStream.Write方法来输出

Answer 1

context.Response.OutputStream.Write用这个输出还是 X

Answer 2

context.Response.ContentType = "image/jpg";
"image/jpg"后面的值改下应该可以

Answer 3

HttpContext.Current.Response.ContentType = "image/jpeg";
img.Save(HttpContext.Current.Response.OutputStream, ImageFormat.Jpg);

Answer 4

public void ProcessRequest (HttpContext context)
    {
        string id = (string)context.Request["id"];
        my_db.my_data_type type = (my_db.my_data_type)Enum.Parse(typeof(my_db.my_data_type), ConfigurationManager.AppSettings["dbType"]);
        if(id!=null)
        {
            MemoryStream imgStream;
            try
            {
                my_db.Data dd = new my_db.Data();
                byte[] blob = (byte[])dd.Execute_Scalar("select img from enterprise where id='" + id + "'");
                imgStream = new MemoryStream(blob);
                Image img = Image.FromStream(imgStream);
                HttpContext.Current.Response.ContentType = "image/jpeg";
                img.Save(HttpContext.Current.Response.OutputStream, ImageFormat.Jpg);                
            }           
            finally
            {
                imgStream.Close();
            }
        }
    }
    public bool IsReusable {
        get {
            return false;
        }
    }
请看电脑，还是显示不出来