byte[] 转成图片方法

/// <summary>
/// ImageData 的摘要说明
/// </summary>
public class ImageData : IHttpHandler
{

public void ProcessRequest(HttpContext context)
{
context.Response.ContentType = "image/Jpeg";
string item_code = context.Request.QueryString["ItemCode"];
IntegralDal dal = new IntegralDal();
byte[] imgbyte = dal.GetImage(item_code);
Bitmap myImage = new Bitmap(GetImageByBytes(imgbyte));
MemoryStream ms = new MemoryStream();
myImage.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
context.Response.ClearContent();
ms.WriteTo(context.Response.OutputStream);
context.Response.Flush();
context.Response.End();
}

}
/// <summary>
/// 读取byte[]并转化为图片
/// </summary>
/// <param name="bytes">byte[]</param>
/// <returns>Image</returns>
public static Image GetImageByBytes(byte[] bytes)
{
    Image photo = null;
    using (MemoryStream ms = new MemoryStream(bytes))
    {
        ms.Write(bytes, 0, bytes.Length);
        photo = Image.FromStream(ms, true);
    }

    return photo;
}

实现:

 this.image.Src = " ../Servers/ImageData.ashx?ItemCode=" + model.ItemCode; 
posted @ 2016-12-07 13:21  huangenai  阅读(15775)  评论(0编辑  收藏  举报