public void ProcessRequest(HttpContext context) { context.Response.ContentType = "text/html"; int id; if (int.TryParse(context.Request.QueryString["ID"], out id)) { BLL.ImageInfoService imageInfoService = new BLL.ImageInfoService(); Model.ImageInfo imageInfo = new Model.ImageInfo(); imageInfo = imageInfoService.read(id); if (imageInfo != null) { string mapPath = context.Request.MapPath("ImageUpdate.html"); string fileContent = File.ReadAllText(mapPath); fileContent = fileContent.Replace("$ID", imageInfo.ID.ToString()).Replace("$OriginalName", imageInfo.OriginalName).Replace("$Path", imageInfo.Path).Replace("$GuidName", imageInfo.GuidName).Replace("$Exetension", imageInfo.Extension).Replace("$ThumbName", imageInfo.ThumbName).Replace("$Size", imageInfo.Size).Replace("$CreateTime", imageInfo.CreateTime.ToString()); context.Response.Write(fileContent); } else { context.Response.Write("要更新的图片不存在"); } } else { context.Response.Write("参数错误"); } }
public void ProcessRequest(HttpContext context) { context.Response.ContentType = "text/html"; string htmlFilePath = context.Request.MapPath("ImageList.html"); string htmlFileContent = File.ReadAllText(htmlFilePath); BLL.ImageInfoService imageInfoService = new BLL.ImageInfoService(); List <ImageInfo> list = imageInfoService.read(); if (list != null) { StringBuilder sb = new StringBuilder(); foreach (ImageInfo item in list) { sb.AppendFormat("<tr><td>{0}</td><td>{1}</td><td>{2}</td><td>{3}</td><td>{4}</td><td>{5}</td><td>{6}</td><td>{7}</td><td><a href='{2}{3}{4}'>{1}</a></td><td><a href='{2}{5}{4}'>thumb</a></td><td><a href='ImageDetail.ashx?ID={0}'>Detail</a></td><td><a href='ImageUpdate.ashx?ID={0}'>Update</a></td><td></td></tr>", item.ID, item.OriginalName, item.Path, item.GuidName, item.Extension, item.ThumbName, item.Size, item.CreateTime); } htmlFileContent = htmlFileContent.Replace("@toBody", sb.ToString()); } else { htmlFileContent = htmlFileContent.Replace("@toBody", ""); } context.Response.Write(htmlFileContent); }
public void ProcessRequest(HttpContext context) { context.Response.ContentType = "text/html"; HttpPostedFile file = context.Request.Files[0]; if (file.ContentLength > 0) { string filePath = Path.GetFileName(file.FileName); //通过file的完全限定名得出源文件的文件名和扩展名 string fileExt = Path.GetExtension(file.FileName); //通过file的完全限定名得出源文件的扩展名 string guidName; string thumbName; string imgWidth; string imgHeight; string dir = "/ImageUpload/" + DateTime.Now.Year + "/" + DateTime.Now.Month + "/" + DateTime.Now.Day + "/"; if (!Directory.Exists(context.Request.MapPath(dir))) { Directory.CreateDirectory(context.Request.MapPath(dir)); }//如果目录不存在就创建一个 string[] imageExt = { ".jpg", ".png", "bmp", ".jpge" }; bool exist = ((IList)imageExt).Contains(fileExt); if (exist) { guidName = Guid.NewGuid().ToString(); thumbName = "thumb" + guidName; file.SaveAs(context.Request.MapPath(dir + guidName + fileExt)); //画缩略图 using (Bitmap map = new Bitmap(100, 100)) { using (Graphics g = Graphics.FromImage(map)) { Image img = Image.FromStream(file.InputStream); imgWidth = img.Width.ToString(); imgHeight = img.Height.ToString(); g.DrawImage(img, 0, 0, 100, 100); map.Save(context.Request.MapPath(dir + thumbName + fileExt), System.Drawing.Imaging.ImageFormat.Jpeg); } } //组imageinfo写数据库 ImageInfo imageInfo = new ImageInfo(); imageInfo.OriginalName = file.FileName; imageInfo.Path = dir; imageInfo.GuidName = guidName; imageInfo.Extension = fileExt; imageInfo.ThumbName = thumbName; imageInfo.Size = imgWidth + "X" + imgHeight; imageInfo.CreateTime = DateTime.Now; BLL.ImageInfoService imageInfoService = new BLL.ImageInfoService(); if (imageInfoService.create(imageInfo)) { context.Response.Redirect("ImageList.ashx"); } else { context.Response.Redirect("/Error.html"); } } else { context.Response.Write("仅能上传图片文件"); } } else { context.Response.Write("请选择要上传的图片"); } }