asp.netÊä³ö png ͼÏñ£¬
asp.netÊä³ö png 32λ ͼÏñ£¬´øÍ¸Ã÷alpha¡£
// pngtest.htm
<html>
<head></head>
<body bgColor="gray">
<img src="png.ashx" />
</body>
</html>
// png.ashx
<%@ WebHandler Language="C#" Class="Png" %>
using System.Web;
public class Png : IHttpHandler {
public void ProcessRequest (HttpContext context) {
HttpResponse Response = context.Response;
System.Drawing.Bitmap bmp = new System.Drawing.Bitmap(392, 72);
System.Drawing.Graphics g = System.Drawing.Graphics.fromImage(bmp);
g.Clear(System.Drawing.Color.Gray);
g.DrawString("This is 32bit png.", new System.Drawing.Font("verdana bold", 14f), System.Drawing.Brushes.HotPink, 0f, 0f);
g.Dispose();
bmp.MakeTransparent(System.Drawing.Color.Gray);
System.IO.MemoryStream MemStream = new System.IO.MemoryStream();
bmp.Save(MemStream, System.Drawing.Imaging.ImageFormat.Png);
bmp.Dispose();
Response.Clear();
Response.ContentType = "image/PNG";
MemStream.WriteTo(Response.OutputStream);
MemStream.Close();
}
public bool IsReusable {
get {
return false;
}
}
}
Ïà¹ØÎĵµ£º
ÔÚWeb±à³Ì¹ý³ÌÖУ¬´æÔÚןܶలȫÒþ»¼¡£±ÈÈçÔÚÒÔǰµÄASP°æ±¾ÖУ¬CookieΪ·ÃÎÊÕߺͱà³ÌÕß¶¼ÌṩÁË·½±ã£¬²¢Ã»ÓÐÌṩ¼ÓÃܵŦÄÜ¡£´ò¿ªIEä¯ÀÀÆ÷£¬Ñ¡Ôñ“¹¤¾ß”²Ëµ¥ÀïµÄ“InternetÑ¡Ï¬È»ºóÔÚµ¯³öµÄ¶Ô»°¿òÀïµ¥»÷“ÉèÖÔ°´Å¥£¬Ñ¡Ôñ“²é¿´Îļþ”°´Å¥£¬ÔÚµ¯³öµÄ´°¿ÚÖУ¬¾Í»áÏÔʾӲÅÌÀï ......
Asp.NetÏÂÔØ·½·¨¡¡²Î¿¼
(1) Ê×ÏÈ×ö³ÉÏÂÔØÎļþ¡£
¡£¡£¡£ ¡£¡£¡£
(2) ×ö³ÉÏÂÔØÎļþµÄ·¾¶ÒÔ¼°ÎļþÃûÓÃsession´«µÝ¸ø´ò¿ªÒ³Ãæ
Session["FILE_PATH"] = ·¾¶ + "DownLoadFile.txt";
Session["FILE_NAME"] = "DownLoadFile.txt";
(3) ´ò¿ªÐ ......
ÎÒÖ÷ÒªÓÃÀ´¸ú×Ùºǫ́µÄһЩÇé¿ö£¬ÎÒÓõÄÊÇÒ»¸öµÚÈý·½²å¼þ£¬ºÜºÃÓõÄ
log4net
¾ßÌåʹÓÃÈçÏ£º
Web.configÅäÖãº
<configSections>
<section name="log4net" type="log4net.Config.Log4NetConfigurationSectionHandler,log4net"/>
</configSections>
<log4net>
&nbs ......
2009-12-03
1. ¼òÊö private¡¢ protected¡¢ public¡¢ internal ÐÞÊηûµÄ·ÃÎÊȨÏÞ¡£
´ð . private : ˽ÓгÉÔ±, ÔÚÀàµÄÄÚ²¿²Å¿ÉÒÔ·ÃÎÊ¡£
protected : ±£»¤³ÉÔ±£¬¸ÃÀàÄÚ²¿ºÍ¼Ì³ÐÀàÖпÉÒÔ·ÃÎÊ¡£
public : ¹«¹²³ÉÔ±£¬ÍêÈ«¹«¿ª£¬Ã»ÓзÃÎÊÏÞÖÆ¡£
internal: ÔÚͬһÃüÃû¿Õ¼äÄÚ¿ÉÒÔ·ÃÎÊ¡£
2 .ÁоÙASP.NET Ò³ÃæÖ®¼ä´«µÝÖµµÄ ......
ǰ̨´úÂë
<object classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,19,0" width='<%=focus_width %>' height='<%=swf_height %>'>
<pa ......