一、效果如下:
二、项目中添加一个类命名为(可任选)在此类中添加代码
二、项目中添加一个类命名为(可任选)在此类中添加代码
using System;
using System.Web;
using System.IO;
using System.Drawing;
/**//// <summary>
/// Class1 的摘要说明
/// </summary>
public class zhangming
{
public class VerifyCode
{
验证码长度(默认5个验证码的长度)#region 验证码长度(默认5个验证码的长度)
int length = 5;
public int Length
{
get{ return length; }
set{ length = value; }
}
#endregion
验证码字体大小(默认10像素)#region 验证码字体大小(默认10像素)
int fontSize = 10;
public int FontSize
{
get{ return fontSize; }
set{ fontSize = value; }
}
#endregion
边框补(默认1像素)#region 边框补(默认1像素)
int padding = 1;
public int Padding
{
get{ return padding; }
set{ padding = value; }
}
#endregion
是否输出燥点(默认不输出)#region 是否输出燥点(默认不输出)
bool chaos = true;
public bool Chaos
{
get{ return chaos; }
set{ chaos = value; }
}
#endregion
输出燥点的颜色(默认灰色)#region 输出燥点的颜色(默认灰色)
Color chaosColor = Color.LightGray;
public Color ChaosColor
{
get{ return chaosColor; }
set{ chaosColor = value; }
}
#endregion
自定义背景色(默认白色)#region 自定义背景色(默认白色)
Color backgroundColor = Color.White;
public Color BackgroundColor
{
get{ return backgroundColor; }
set{ backgroundColor = value; }
}
#endregion
自定义随机颜色数组#region 自定义随机颜色数组
Color[] colors = {Color.Black,Color.Red,Color.DarkBlue,Color.Green,Color.Orange,Color.Brown,Color.DarkCyan,Color.Purple};
public Color[] Colors
{
get{ return colors; }
set{ colors = value; }
}
#endregion
自定义字体数组#region 自定义字体数组
string[] fonts = {"Arial", "Georgia"};
public string[] Fonts
{
get{ return fonts; }
set{ fonts = value; }
}
#endregion
自定义随机码字符串序列(使用逗号分隔)#region 自定义随机码字符串序列(使用逗号分隔)
string codeSerial = "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,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";
public string CodeSerial
{
get{ return codeSerial; }
set{ codeSerial = value; }
}
#endregion
生成校验码图片#region 生成校验码图片
public Bitmap CreateImageCode(string code)
{
int fSize = FontSize;
int fWidth = fSize + Padding;
int imageWidth = (int)(code.Length * fWidth) + 4 + Padding * 2;
int imageHeight = fSize *2 + Padding;
System.Drawing.Bitmap image = new System.Drawing.Bitmap(imageWidth, imageHeight);
Graphics g = Graphics.FromImage(image);
g.Clear(BackgroundColor);
Random rand = new Random();
//给背景添加随机生成的燥点
if(this.Chaos)
{
Pen pen = new Pen(ChaosColor, 0);
int c = Length * 10;
for(int i=0;i<c;i++)
{
int x = rand.Next(image.Width);
int y = rand.Next(image.Height);
g.DrawRectangle(pen, x, y, 1, 1);
}
}
int left = 0 , top = 0, top1 = 1, top2 = 1;
int n1 = (imageHeight - FontSize - Padding * 2);
int n2 = n1/4;
top1 = n2;
top2 = n2 *2;
Font f;
Brush b;
int cindex, findex;
//随机字体和颜色的验证码字符
for(int i=0; i<code.Length; i++)
{
cindex = rand.Next(Colors.Length - 1);
findex = rand.Next(Fonts.Length - 1);
f = new System.Drawing.Font(Fonts[findex], fSize, System.Drawing.FontStyle.Bold);
b = new System.Drawing.SolidBrush(Colors[cindex]);
if( i%2 == 1 )
using System.Web;
using System.IO;
using System.Drawing;
/**//// <summary>
/// Class1 的摘要说明
/// </summary>
public class zhangming
{
public class VerifyCode
{
验证码长度(默认5个验证码的长度)#region 验证码长度(默认5个验证码的长度)
int length = 5;
public int Length
{
get{ return length; }
set{ length = value; }
}
#endregion
验证码字体大小(默认10像素)#region 验证码字体大小(默认10像素)
int fontSize = 10;
public int FontSize
{
get{ return fontSize; }
set{ fontSize = value; }
}
#endregion
边框补(默认1像素)#region 边框补(默认1像素)
int padding = 1;
public int Padding
{
get{ return padding; }
set{ padding = value; }
}
#endregion
是否输出燥点(默认不输出)#region 是否输出燥点(默认不输出)
bool chaos = true;
public bool Chaos
{
get{ return chaos; }
set{ chaos = value; }
}
#endregion
输出燥点的颜色(默认灰色)#region 输出燥点的颜色(默认灰色)
Color chaosColor = Color.LightGray;
public Color ChaosColor
{
get{ return chaosColor; }
set{ chaosColor = value; }
}
#endregion
自定义背景色(默认白色)#region 自定义背景色(默认白色)
Color backgroundColor = Color.White;
public Color BackgroundColor
{
get{ return backgroundColor; }
set{ backgroundColor = value; }
}
#endregion
自定义随机颜色数组#region 自定义随机颜色数组
Color[] colors = {Color.Black,Color.Red,Color.DarkBlue,Color.Green,Color.Orange,Color.Brown,Color.DarkCyan,Color.Purple};
public Color[] Colors
{
get{ return colors; }
set{ colors = value; }
}
#endregion
自定义字体数组#region 自定义字体数组
string[] fonts = {"Arial", "Georgia"};
public string[] Fonts
{
get{ return fonts; }
set{ fonts = value; }
}
#endregion
自定义随机码字符串序列(使用逗号分隔)#region 自定义随机码字符串序列(使用逗号分隔)
string codeSerial = "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,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";
public string CodeSerial
{
get{ return codeSerial; }
set{ codeSerial = value; }
}
#endregion
生成校验码图片#region 生成校验码图片
public Bitmap CreateImageCode(string code)
{
int fSize = FontSize;
int fWidth = fSize + Padding;
int imageWidth = (int)(code.Length * fWidth) + 4 + Padding * 2;
int imageHeight = fSize *2 + Padding;
System.Drawing.Bitmap image = new System.Drawing.Bitmap(imageWidth, imageHeight);
Graphics g = Graphics.FromImage(image);
g.Clear(BackgroundColor);
Random rand = new Random();
//给背景添加随机生成的燥点
if(this.Chaos)
{
Pen pen = new Pen(ChaosColor, 0);
int c = Length * 10;
for(int i=0;i<c;i++)
{
int x = rand.Next(image.Width);
int y = rand.Next(image.Height);
g.DrawRectangle(pen, x, y, 1, 1);
}
}
int left = 0 , top = 0, top1 = 1, top2 = 1;
int n1 = (imageHeight - FontSize - Padding * 2);
int n2 = n1/4;
top1 = n2;
top2 = n2 *2;
Font f;
Brush b;
int cindex, findex;
//随机字体和颜色的验证码字符
for(int i=0; i<code.Length; i++)
{
cindex = rand.Next(Colors.Length - 1);
findex = rand.Next(Fonts.Length - 1);
f = new System.Drawing.Font(Fonts[findex], fSize, System.Drawing.FontStyle.Bold);
b = new System.Drawing.SolidBrush(Colors[cindex]);
if( i%2 == 1 )