<script language="javaScript">
function checkReg(){
if (document.regForm.username.value == ""){
alert ("提示：\n\n必须输入用户名！")
document.regForm.username.focus()
return false
}
if (document.regForm.password.value == document.regForm.username.value){
alert ("提示：\n\n密码不能与用户名相同！")
document.regForm.password.focus()
return false
}else if (document.regForm.password.value.length <6){
alert ("提示：\n\n密码至少6位数！")
document.regForm.password.focus()
return false
}else if (!isNaN(document.regForm.password.value)){
alert ("提示：\n\n密码不能全是数字！")
document.regForm.password.focus()
return false
}
if(!(document.regForm.tel.value.match(/^(\d{3,4}\-)?\d{7,8}$/))){
alert ("提示：\n\n固定电话格式为：XXXX-XXXXXXX，XXXX-XXXXXXXX，XXX-XXXXXXX，XXX-XXXXXXXX，XXXXXXX，XXXXXXXX！")
document.regForm.tel.focus()
return false
}
if(!(document.regForm.mobile.value.match(/^(\d{3})(\-)?(\d{8})$/))){
alert ("提示：\n\n11位手机号码格式为：XXXXXXXXXXX，XXX-XXXXXXXX！")
document.regForm.mobile.focus()
return false
}
if(!(document.regForm.email.value.match(/^\w+([-+.]\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*$/))){
alert ("提示：\n\nEmail地址错误！")
document.regForm.email.focus()
return false
}
return true
}
</script>
<table width="400" border="1" cellspacing="0" cellpadding="0" align="center">
<form method="post" action="reg.asp" name="regForm" onSubmit="return checkReg()">
<tr>
<td width="120" align="right">用户名：</td>
<td width="280"><input type="text" name="username" size="30"></td>
</tr>
<tr>
<td align="right">密码：</td>
<td><input type="text" name="password" size="30"></td>
</tr>
<tr>
<td align="right">电话:</td>
<td><input type="text" name="tel" size="30"></td>
</tr>
<tr>
<td align="right">手机:</td>
<td><input type="text" name="mobile" size="30"></td>
</tr>
<tr>
<td align="right">邮箱: </td>
<td><input type="text" name="email" size="30"></td>
</tr>
<tr>
<td colspan=2 align=center>
<input type="submit" name="ok" value="注 册">
<input type="reset" name="reset" value="重 填">
</td>
</tr>
</form>
</table>
<%@ page contentType="image/jpeg" import="java.awt.*,java.awt.image.*,java.util.*,javax.imageio.*" pageEncoding="GBK"%>
<%!
Color getRandColor(int fc,int bc){//给定范围获得随机颜色
Random random = new Random()
if(fc>255) fc=255
if(bc>255) bc=255
int r=fc+random.nextInt(bc-fc)
int g=fc+random.nextInt(bc-fc)
int b=fc+random.nextInt(bc-fc)
return new Color(r,g,b)
}
%>
<%
//设置页面不缓存
response.setHeader("Pragma","No-cache")
response.setHeader("Cache-Control","no-cache")
response.setDateHeader("Expires", 0)// 在内存中创建图象
int width=60, height=20
BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB)// 获取图形上下文
Graphics g = image.getGraphics()//生成随机类
Random random = new Random()// 设定背景色
g.setColor(getRandColor(200,250))
g.fillRect(0, 0, width, height)//设定字体
g.setFont(new Font("Times New Roman",Font.PLAIN,18))//画边框
//g.setColor(new Color())
//g.drawRect(0,0,width-1,height-1)// 随机产生155条干扰线，使图象中的认证码不易被其它程序探测到
g.setColor(getRandColor(160,200))
for (int i=0i<155i++)
{
int x = random.nextInt(width)
int y = random.nextInt(height)
int xl = random.nextInt(12)
int yl = random.nextInt(12)
g.drawLine(x,y,x+xl,y+yl)
}// 取随机产生的认证码(4位数字)
String sRand=""
for (int i=0i<4i++){
String rand=String.valueOf(random.nextInt(10))
sRand+=rand
// 将认证码显示到图象中
g.setColor(new Color(20+random.nextInt(110),20+random.nextInt(110),20+random.nextInt(110)))
//调用函数出来的颜色相同，可能是因为种子太接近，所以只能直接生成
g.drawString(rand,13*i+6,16)
}// 将认证码存入SESSION
session.setAttribute("rand",sRand)// 图象生效
g.dispose()// 输出图象到页面
ImageIO.write(image, "JPEG", response.getOutputStream())
out.clear()
out = pageContext.pushBody()
%>
