/// <summary> /// 获取附件HTML /// </summary> /// <returns></returns> public static string FileHtml(Wis.Website.DataManager.Article article) { if (article.ArticleGuid == null) return ""; Wis.Website.DataManager.FileManager fileManager = new Wis.Website.DataManager.FileManager(); List<Wis.Website.DataManager.File> files = Wis.Website.DataManager.FileManager.GetFilesBySubmissionGuid(article.ArticleGuid); int index = 1; System.Text.StringBuilder sb = new StringBuilder(); foreach (Wis.Website.DataManager.File file in files) { sb.Append("<p class=\"contenta\">附件:<a href=\"" + file.SaveAsFileName + "\" target=\"_blank\" title=\"点击下载附件\">" + file.OriginalFileName + "</a></p>"); if (index == files.Count) { sb.Append("<br/>"); } index++; } return sb.ToString(); }
/// <summary> /// 生成缩略图 /// </summary> /// <param name="originalImagePath">源图路径(物理路径)</param> /// <param name="thumbnailPath">缩略图路径(物理路径)</param> /// <param name="width">缩略图宽度</param> /// <param name="height">缩略图高度</param> /// <param name="mode">生成缩略图的方式</param> protected void MakeMyThumbPhoto(string originalImagePath, int toW, int toH, int X, int Y, int W, int H) { System.Drawing.Image originalImage = System.Drawing.Image.FromFile(originalImagePath); int towidth = toW; int toheight = toH; int x = X; int y = Y; int ow = W; int oh = H; //新建一个bmp图片 System.Drawing.Image bitmap = new System.Drawing.Bitmap(towidth, toheight); //新建一个画板 System.Drawing.Graphics g = System.Drawing.Graphics.FromImage(bitmap); //设置高质量插值法 g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.High; //设置高质量,低速度呈现平滑程度 g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality; //清空画布并以透明背景色填充 g.Clear(System.Drawing.Color.Transparent); //在指定位置并且按指定大小绘制原图片的指定部分 g.DrawImage(originalImage, new System.Drawing.Rectangle(0, 0, towidth, toheight), new System.Drawing.Rectangle(x, y, ow, oh), System.Drawing.GraphicsUnit.Pixel); try { Wis.Website.DataManager.FileManager fileManager = new Wis.Website.DataManager.FileManager(); Wis.Website.DataManager.File file = new Wis.Website.DataManager.File(); file.CreatedBy = string.Empty; // TODO:填写当前登录用户的UserName file.CreationDate = System.DateTime.Now; file.Description = string.Empty; // TODO:如何提供描述? file.FileGuid = Guid.NewGuid(); file.Hits = 0; file.OriginalFileName = ""; file.Rank = 0; // file.SaveAsFileName = // file.Size // file.SubmissionGuid = // ? string fileExtension = ".jpg"; //缩略图后缀名 string sUserUploadPath = "/Uploads/Photos"; string DirectoryPath = sUserUploadPath + "/" + DateTime.Now.ToShortDateString(); if (!System.IO.Directory.Exists(Server.MapPath(DirectoryPath))) { System.IO.Directory.CreateDirectory(Server.MapPath(DirectoryPath)); } string sFileName = DateTime.Now.ToString("yyyyMMddHHmmssffff") + fileExtension; // 文件名称 string thumbnailPath = Server.MapPath(DirectoryPath + "/" + sFileName ); // 服务器端文件路径 //以jpg格式保存缩略图 bitmap.Save(thumbnailPath, System.Drawing.Imaging.ImageFormat.Jpeg); ViewState["javescript"] = "ReturnValue('" + DirectoryPath + "/" + sFileName + "');"; return; } catch (System.Exception e) { throw e; } finally { originalImage.Dispose(); bitmap.Dispose(); g.Dispose(); } }