public void ProcessRequest(HttpContext context)
{
int width = Convert.ToInt32(context.Request.QueryString["width"]);
int height = Convert.ToInt32(context.Request.QueryString["height"]);
string pictureFileNo = context.Request.QueryString["pictureFileNo"].ToString();
string type = context.Request.QueryString["type"].ToString();
//V2版 CDN图片
//string picUrl = ServicePic.ResolveUGCImage(GetType(type), pictureFileNo, width, height);
//context.Response.Redirect(picUrl, true);
#region V1版读取--直接读取数据库中的二进制
CommonService service = new CommonService();
string extension = string.Empty;
Image outImage = service.GetPic(width, height, pictureFileNo, type, out extension);
context.Response.ContentType = "image/jpeg";
context.Response.Clear();
context.Response.BufferOutput = true;
if (null == outImage)
{
//输出默认图片
Bitmap defalut = PictureFileConverter.GetDefalutPic(width, height);
defalut.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg);
context.Response.End();
}
switch (extension)
{
case "jpg":
outImage.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg);
break;
case "gif":
outImage.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Gif);
break;
case "png":
outImage.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Png);
break;
default:
outImage.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg);
break;
}
context.Response.End();
#endregion
}
public void ProcessRequest(HttpContext context)
{
int width = Convert.ToInt32(context.Request.QueryString["width"]);
int height = Convert.ToInt32(context.Request.QueryString["height"]);
string pictureFileNo = context.Request.QueryString["pictureFileNo"].ToString();
string type = context.Request.QueryString["type"].ToString();
CommonService service = new CommonService();
string extension = string.Empty;
string cacheKey = string.Format("PicRead_{0}_{1}_{2}_{3}", pictureFileNo, width, height, type);
Image outImage;
ImageModel imageModel = (ImageModel)HttpRuntime.Cache.Get(cacheKey);
if (imageModel == null)
{
imageModel = service.GetPic(width, height, pictureFileNo, type);
if (imageModel != null)
{
HttpRuntime.Cache.Add(cacheKey, imageModel, null, DateTime.Now.AddMinutes(15), Cache.NoSlidingExpiration, CacheItemPriority.Normal, null);
}
}
outImage = imageModel.Image;
switch (imageModel.Extension)
{
case ".jpg":
context.Response.ContentType = "image/jpeg";
break;
case ".gif":
context.Response.ContentType = "image/gif";
break;
case ".png":
context.Response.ContentType = "image/png";
break;
default:
context.Response.ContentType = "image/jpeg";
break;
}
context.Response.Clear();
context.Response.BufferOutput = true;
if (null == outImage)//输出默认图片--图片不存在时
{
Bitmap defalut = PictureFileConverter.GetDefalutPic(width, height);
defalut.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg);
context.Response.End();
}
switch (imageModel.Extension)
{
case ".jpg":
outImage.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg);
break;
case ".gif":
outImage.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Gif);
break;
case ".png":
using (MemoryStream ms = new MemoryStream())
{
outImage.Save(ms, ImageFormat.Png);
ms.WriteTo(context.Response.OutputStream);
}
//outImage.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Png);
break;
default:
outImage.Save(context.Response.OutputStream, System.Drawing.Imaging.ImageFormat.Jpeg);
break;
}
context.Response.End();
}