B\S备忘录01——此吧神兽“焰正马 ”
百度草原相传，古生神兽，凤神无双，双眼如菊、晦涩如电，轻轻回眸，百媚顿生。身着烈焰，未把数十米长，一旦有违反百度草原之事，长尾一甩，离开将其灰飞烟灭，直冲九天，死不足惜。生活于蔚蓝的百度草原，生猛无比。对于这种马，外界褒贬不一，唯一的强项就是帅气！弱项就是实力不是很强，不过对付百度草原中的违反草原规则的人来说，焰正马绝对是恐怖的。然则人外有人，山外有山，在无尽的贴吧之海中，有一群人，自诩水军，终有一天走向了草原。神兽盛怒，天降魔火，所过之处寸草不生，万里强袭，直取水军，奈何双拳难敌四手，水军杀之不尽。神兽力有竭，又无天时地利人和之势，思量之下欲联合森林之神——鹳狸猿。。。
欲问后事如何。。。后边我还没想好。。。幸好这两天是看了不少牛腩，不然这让我扯一整篇这玩意，信不信分分钟吊死在这。
这两天刚刚是做完了牛腩验证码的部分，记得以前看别人写博客的时候，注释里有一大段乱七八糟的东西，我还以为是乱码，后来发现，好像不用也行。
using System;
using System.Web;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Web.SessionState;
public class WaterMark : IHttpHandler, IRequiresSessionState // 要使用session必须实现该接口,记得要导入System.Web.SessionState命名空间
{
public void ProcessRequest(HttpContext context)
{
string checkCode = GenCode(5); // 产生5位随机字符
context.Session["Code"] = checkCode; //将字符串保存到Session中，以便需要时进行验证
System.Drawing.Bitmap image = new System.Drawing.Bitmap(70, 22);
Graphics g = Graphics.FromImage(image);
try
{
//生成随机生成器
Random random = new Random();
//清空图片背景色
g.Clear(Color.White);
// 画图片的背景噪音线
int i;
for (i = 0; i < 25; i++)
{
int x1 = random.Next(image.Width);
int x2 = random.Next(image.Width);
int y1 = random.Next(image.Height);
int y2 = random.Next(image.Height);
g.DrawLine(new Pen(Color.Silver), x1, y1, x2, y2);
}
Font font = new System.Drawing.Font("Arial", 12, (System.Drawing.FontStyle.Bold));
System.Drawing.Drawing2D.LinearGradientBrush brush = new System.Drawing.Drawing2D.LinearGradientBrush(new Rectangle(0, 0, image.Width, image.Height), Color.Blue, Color.DarkRed, 1.2F, true);
g.DrawString(checkCode, font, brush, 2, 2);
//画图片的前景噪音点
g.DrawRectangle(new Pen(Color.Silver), 0, 0, image.Width - 1, image.Height - 1);
System.IO.MemoryStream ms = new System.IO.MemoryStream();
image.Save(ms, System.Drawing.Imaging.ImageFormat.Gif);
context.Response.ClearContent();
context.Response.ContentType = "image/Gif";
context.Response.BinaryWrite(ms.ToArray());
}
finally
{
g.Dispose();
image.Dispose();
}
}
///
/// 产生随机字符串
///
/// 随机出几个字符
/// 随机出的字符串
private string GenCode(int num)
{
string str = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ";
char[] chastr = str.ToCharArray();
// string[] source ={ "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z", "#", "$", "%", "&", "@" };
string code = "";
Random rd = new Random();
int i;
for (i = 0; i < num; i++)
{
//code += source[rd.Next(0, source.Length)];
code += str.Substring(rd.Next(0, str.Length), 1);
}
return code;
}
public bool IsReusable
{
get
{
return false;
}
}
}以上
啊。。。想继续看故事的可以走了。。。