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");
}
}
