public class QRCodeHandler{/// <summary>/// 创建生成二维码/// </summary>/// <param name="Dz">跳转连接地址</param>/// <param name="Tp">中间显示的Logo</param>/// <returns></returns>///   也可以是Image 类型public static byte[] CreateQRcode(string Dz, string Tp){QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;//二维码编码(Byte、AlphaNumeric、Numeric)qrCodeEncoder.QRCodeScale = 4;//二维码尺寸(Version为0时，1：26x26，每加1宽和高各加25qrCodeEncoder.QRCodeVersion = 8;//二维码密集度0-40qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.M;//二维码纠错能力(L：7% M：15% Q：25% H：30%)Image card = qrCodeEncoder.Encode(Dz, Encoding.UTF8);System.IO.MemoryStream MStream = new System.IO.MemoryStream();card.Save(MStream, System.Drawing.Imaging.ImageFormat.Png);System.IO.MemoryStream MStream1 = new System.IO.MemoryStream();CombinImage(card, Tp).Save(MStream1, System.Drawing.Imaging.ImageFormat.Png);MStream.Dispose();MStream1.Dispose();MemoryStream ms = new MemoryStream();card.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);//return card;  Image类型的时候返回return ms.ToArray(); //返回 byte[]类型
}/// <summary>   /// 调用此函数后使此两种图片合并，类似相册，有个   /// 背景图，中间贴自己的目标图片   /// </summary>   /// <param name="imgBack">粘贴的源图片</param>   /// <param name="destImg">粘贴的目标图片</param>   public static Image CombinImage(Image imgBack, string destImg){Image img = Image.FromFile(destImg);        //照片图片     if (img.Height != 65 || img.Width != 65){img = KiResizeImage(img, 65, 65, 0);}Graphics g = Graphics.FromImage(imgBack);g.DrawImage(imgBack, 0, 0, imgBack.Width, imgBack.Height); 

   //页面
<ul class="ui-list ui-list-one ui-list-link ui-border-tb">@foreach (var m in Model.sources){var url = Url.Action("WxItem", new { id = m.ID });<li class="ui-border-t"><a class="ui-list-info" href="@url"><h4 class="ui-nowrap">@m.MC</h4><img src="@Url.Action("EWMWxItem", "Home", new { id = m.ID, logo = m.Logo, dz= url })" /><div class="ui-txt-info"></div></a></li>}</ul>//后台[Description("获取二维码")]public ActionResult EWMWxItem(int id, string logo, string dz, int? w, int? h){try{w = 50; h = 50;if (string.IsNullOrWhiteSpace(logo))return HttpNotFound();logo = logo.Replace("../", "");var t = "~/" + logo;var logourl = Server.MapPath(t);var startIndex = logourl.LastIndexOf('.');List<string> exs = new List<string> { ".JPG", ".JPEG", ".PNG", ".GIF", ".ICO", ".BMP" };if (w.HasValue || h.HasValue){var tp = string.Format("{0}.{1}_{2}.jpg", logourl, w, h);if (!System.IO.File.Exists(tp)){Db.Charge.FileHelper.PicFile.MakeThumbnail(logourl, tp, w, h);}logourl = tp;}//二维码跳转的连接地址var Url = Request.Url.Scheme + "://" + Request.Url.Authority + dz;var EWMLogo = QRCodeHandler.CreateQRcode(Url, logourl);return File(EWMLogo, @"image/jpeg");}catch (Exception ex){Db.Charge.LogHelper.WriteLogs.LogN("EWMWxItem", ex.ToString());return HttpNotFound();}}

        // Image类型public class ImageResult : ActionResult{public ImageResult() { }public Image Image { get; set; }public ImageFormat ImageFormat { get; set; }public override void ExecuteResult(ControllerContext context){// 验证属性if (Image == null){throw new ArgumentNullException("Image");}if (ImageFormat == null){throw new ArgumentNullException("ImageFormat");}//输出
                context.HttpContext.Response.Clear();if (ImageFormat.Equals(ImageFormat.Bmp)) context.HttpContext.Response.ContentType = "image/bmp";if (ImageFormat.Equals(ImageFormat.Gif)) context.HttpContext.Response.ContentType = "image/gif";if (ImageFormat.Equals(ImageFormat.Icon)) context.HttpContext.Response.ContentType = "image/vnd.microsoft.icon";if (ImageFormat.Equals(ImageFormat.Jpeg)) context.HttpContext.Response.ContentType = "image/jpeg";if (ImageFormat.Equals(ImageFormat.Png)) context.HttpContext.Response.ContentType = "image/png";if (ImageFormat.Equals(ImageFormat.Tiff)) context.HttpContext.Response.ContentType = "image/tiff";if (ImageFormat.Equals(ImageFormat.Wmf)) context.HttpContext.Response.ContentType = "image/wmf";Image.Save(context.HttpContext.Response.OutputStream, ImageFormat);}}public ActionResult EWMWxItem(int id, string logo, string dz, int? w, int? h){//二维码跳转的连接地址var Url = Request.Url.Scheme + "://" + Request.Url.Authority + dz;var EWMLogo = QRCodeHandler.CreateQRcode(Url, logo);return new ImageResult(){Image = EWMLogo,ImageFormat = System.Drawing.Imaging.ImageFormat.Jpeg};}