JS 怎么制作数字、字母、汉字混合的验证码

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JS 怎么制作数字、字母、汉字混合的验证码,第1张

/***************************************************/ /**效果倒是出来了,但是不是十分好看*********/ /**建议还是单选汉字或者去掉汉字看看*******/ /**************************************************/ <html><head><style type="text/css">.code{ background-image:url(code.jpg)font-family:Arialfont-style:italiccolor:Redborder:0padding:2px 3pxletter-spacing:3pxfont-weight:bolder} .unchanged { border:0} </style><script language="javascript" type="text/javascript">var code //在全局 定义验证码 function createCode(){ code = ""var codeLength = 100//验证码的长度 var checkCode = document.getElementById("checkCode")checkCode.value = ""var selectChar = new Array(2,3,4,5,6,7,8,9,'A','B','C','D','E','F','G','H','J','K','L','M','N','P','Q','R','S','T','U','V','W','X','Y','Z','\u7684','\u4e00','\u4e86','\u662f','\u6211','\u4e0d','\u5728','\u4eba','\u4eec','\u6709','\u6765','\u4ed6','\u8fd9','\u4e0a','\u7740','\u4e2a','\u5730','\u5230','\u5927','\u91cc','\u8bf4','\u5c31','\u53bb','\u5b50','\u5f97','\u4e5f','\u548c','\u90a3','\u8981','\u4e0b','\u770b','\u5929','\u65f6','\u8fc7','\u51fa','\u5c0f','\u4e48','\u8d77','\u4f60','\u90fd','\u628a','\u597d','\u8fd8','\u591a','\u6ca1','\u4e3a','\u53c8','\u53ef','\u5bb6','\u5b66','\u53ea','\u4ee5','\u4e3b','\u4f1a','\u6837','\u5e74','\u60f3','\u751f','\u540c','\u8001','\u4e2d','\u5341','\u4ece','\u81ea','\u9762','\u524d','\u5934','\u9053','\u5b83','\u540e','\u7136','\u8d70','\u5f88','\u50cf','\u89c1','\u4e24','\u7528','\u5979','\u56fd','\u52a8','\u8fdb','\u6210','\u56de','\u4ec0','\u8fb9','\u4f5c','\u5bf9','\u5f00','\u800c','\u5df1','\u4e9b','\u73b0','\u5c71','\u6c11','\u5019','\u7ecf','\u53d1','\u5de5','\u5411','\u4e8b','\u547d','\u7ed9','\u957f','\u6c34','\u51e0','\u4e49','\u4e09','\u58f0','\u4e8e','\u9ad8','\u624b','\u77e5','\u7406','\u773c','\u5fd7','\u70b9','\u5fc3','\u6218','\u4e8c','\u95ee','\u4f46','\u8eab','\u65b9','\u5b9e','\u5403','\u505a','\u53eb','\u5f53','\u4f4f','\u542c','\u9769','\u6253','\u5462','\u771f','\u5168','\u624d','\u56db','\u5df2','\u6240','\u654c','\u4e4b','\u6700','\u5149','\u4ea7','\u60c5','\u8def','\u5206','\u603b','\u6761','\u767d','\u8bdd','\u4e1c','\u5e2d','\u6b21','\u4eb2','\u5982','\u88ab','\u82b1','\u53e3','\u653e','\u513f','\u5e38','\u6c14','\u4e94','\u7b2c','\u4f7f','\u5199','\u519b','\u5427','\u6587','\u8fd0','\u518d','\u679c','\u600e','\u5b9a','\u8bb8','\u5feb','\u660e','\u884c','\u56e0','\u522b','\u98de','\u5916','\u6811','\u7269','\u6d3b','\u90e8','\u95e8','\u65e0','\u5f80','\u8239','\u671b','\u65b0','\u5e26','\u961f','\u5148','\u529b','\u5b8c','\u5374','\u7ad9','\u4ee3','\u5458','\u673a','\u66f4','\u4e5d','\u60a8','\u6bcf','\u98ce','\u7ea7','\u8ddf','\u7b11','\u554a','\u5b69','\u4e07','\u5c11','\u76f4','\u610f','\u591c','\u6bd4','\u9636','\u8fde','\u8f66','\u91cd','\u4fbf','\u6597','\u9a6c','\u54ea','\u5316','\u592a','\u6307','\u53d8','\u793e','\u4f3c','\u58eb','\u8005','\u5e72','\u77f3','\u6ee1','\u65e5','\u51b3','\u767e','\u539f','\u62ff','\u7fa4','\u7a76','\u5404','\u516d','\u672c','\u601d','\u89e3','\u7acb','\u6cb3','\u6751','\u516b','\u96be','\u65e9','\u8bba','\u5417','\u6839','\u5171','\u8ba9','\u76f8','\u7814','\u4eca','\u5176','\u4e66','\u5750','\u63a5','\u5e94','\u5173','\u4fe1','\u89c9','\u6b65','\u53cd','\u5904','\u8bb0','\u5c06','\u5343','\u627e','\u4e89','\u9886','\u6216','\u5e08','\u7ed3','\u5757','\u8dd1','\u8c01','\u8349','\u8d8a','\u5b57','\u52a0','\u811a','\u7d27','\u7231','\u7b49','\u4e60','\u9635','\u6015','\u6708','\u9752','\u534a','\u706b','\u6cd5','\u9898','\u5efa','\u8d76','\u4f4d','\u5531','\u6d77','\u4e03','\u5973','\u4efb','\u4ef6','\u611f','\u51c6','\u5f20','\u56e2','\u5c4b','\u79bb','\u8272','\u8138','\u7247','\u79d1','\u5012','\u775b','\u5229','\u4e16','\u521a','\u4e14','\u7531','\u9001','\u5207','\u661f','\u5bfc','\u665a','\u8868','\u591f','\u6574','\u8ba4','\u54cd','\u96ea','\u6d41','\u672a','\u573a','\u8be5','\u5e76','\u5e95','\u6df1','\u523b','\u5e73','\u4f1f','\u5fd9','\u63d0','\u786e','\u8fd1','\u4eae','\u8f7b','\u8bb2','\u519c','\u53e4','\u9ed1','\u544a','\u754c','\u62c9','\u540d','\u5440','\u571f','\u6e05','\u9633','\u7167','\u529e','\u53f2','\u6539','\u5386','\u8f6c','\u753b','\u9020','\u5634','\u6b64','\u6cbb','\u5317','\u5fc5','\u670d','\u96e8','\u7a7f','\u5185','\u8bc6','\u9a8c','\u4f20','\u4e1a','\u83dc','\u722c','\u7761','\u5174','\u5f62','\u91cf','\u54b1','\u89c2','\u82e6','\u4f53','\u4f17','\u901a','\u51b2','\u5408','\u7834','\u53cb','\u5ea6','\u672f','\u996d','\u516c','\u65c1','\u623f','\u6781','\u5357','\u67aa','\u8bfb','\u6c99','\u5c81','\u7ebf','\u91ce','\u575a','\u7a7a','\u6536','\u7b97','\u81f3','\u653f','\u57ce','\u52b3','\u843d','\u94b1','\u7279','\u56f4','\u5f1f','\u80dc','\u6559','\u70ed','\u5c55','\u5305','\u6b4c','\u7c7b','\u6e10','\u5f3a','\u6570','\u4e61','\u547c','\u6027','\u97f3','\u7b54','\u54e5','\u9645','\u65e7','\u795e','\u5ea7','\u7ae0','\u5e2e','\u5566','\u53d7','\u7cfb','\u4ee4','\u8df3','\u975e','\u4f55','\u725b','\u53d6','\u5165','\u5cb8','\u6562','\u6389','\u5ffd','\u79cd','\u88c5','\u9876','\u6025','\u6797','\u505c','\u606f','\u53e5','\u533a','\u8863','\u822c','\u62a5','\u53f6','\u538b','\u6162','\u53d4','\u80cc','\u7ec6')for(var i=0i<codeLengthi++) { var charIndex = Math.floor(Math.random()*550)code +=selectChar[charIndex]} if(code.length != codeLength){ createCode()} checkCode.value = code} function validate () { var inputCode = document.getElementById("input1").value.toUpperCase()if(inputCode.length <=0) { alert("请输入验证码！")return false} else if(inputCode != code ){ alert("验证码输入错误！")createCode()return false} else { alert("OK")return true} } </script></head><body onload="createCode()"><input type="text" id="input1" /><input type="text" id="checkCode" class="code" style="width: 1000px" /><a href="#" onclick="createCode()">看不清楚</a><input id="Button1" onclick="validate()" type="button" value="确定" /><br /><br /><script></script></body></html>

<%@ page contentType="text/htmlcharset=gb2312" language="java" import="java.sql.*" errorPage="" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/htmlcharset=gb2312" />

<title>新用户注册</title>

<script language="javascript" src="js/send_request.js"></script>

<script language="javascript">

function refreshImage(){

document.getElementById("image").src = "image.jsp"

}

function checkInput(){

var f = document.forms[0]

var usernamePatrn = /^[a-zA-Z]{4,12}$/

if(!usernamePatrn.exec(f.username.value)){

alert("输入用户名不合法，请重新输入!")

f.username.select

f.username.focus()

return false

}

var passwordPatrn = /^(\w){6,12}$/

if(!passwordPatrn.exec(f.password.value)){

alert("密码不符合要求，请重新输入!")

f.passowrd.focus()

return false

}

if(f.password.value != f.passwordverify.value){

alert("两次密码输入不一样，请重新输入!")

f.password.focus()

return false

}

document.getElementById("info").innerHTML = "正在处理。。。请等待。。。"

send_request("get","private/register1.jsp?userName="+f.username.value+"&password="+f.password.value+

"&checkCode="+f.check.value,null,"text",callback)

}

function callback(){

if(http_request.readyState == 4){

if(http_request.status == 200){

var result = http_request.responseText

if(result == 1){

alert("注册成功！点击确定后进入主界面!")

window.location="mainPage.html"

}

else alert(result)

}

else{

alert("页面异常")

alert(http_request.status)

}

}

}

</script>

</head>

<body>

<form action="" name="form1"method="post">

<table width="100%">

<tr align="center">

<td align="right">用户名:</td>

<td align="left"><input type="text" size="12" maxlength="12" id="username" name="username" />

(2-12字符, 必须全为英文字母)</td>

</tr>

<tr>

<td></td>

<td align="left"><label id="info" style="color:#0033FF"></td>

</tr>

<tr>

<td align="right">密码:</td>

<td align="left"><input type="password" size="12" maxlength="12" id="password" />(4-12字符)</td>

</tr>

<tr>

<td align="right">密码确认:</td>

<td align="left"><input type="password" size="12" maxlength="12" id="passwordverify" />(4-12字符)</td>

</tr>

<tr>

<td align="right"><img src="image.jsp" id="image" /></td>

<td align="left"><input type="button" value="看不清楚，换个验证码" onclick="javascript:refreshImage()" /></td>

</tr>

<tr>

<td align="right">请输入验证码:</td>

<td align="left"><input type="text" size="12" maxlength="12" id="check" name="check" /></td>

</tr>

<tr>

<td align="right"><input type="button" value="提交" onclick="javascript:checkInput()" /></td>

<td align="left"><input type="reset" value="取消" /></td>

</tr>

</table>

</form>

</body>

</html>

ajax的

下面是image.jsp

<%@ page contentType="image/jpeg" import="java.awt.*,java.awt.image.*,java.util.*,javax.imageio.*" %>

<%!

Color getRandColor(Random random,int fc,int bc)

{

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)

}

%>

<%

response.setHeader("Pragma","No-cache")

response.setHeader("Cache-Control","no-cache")

response.setDateHeader("Expires", 0)

// 设置图片的长宽

int width=176, height=30

//设置备选汉字，剔除一些不雅的汉字

String base = "\u7684\u4e00\u4e86\u662f\u6211\u4e0d\u5728\u4eba\u4eec\u6709\u6765\u4ed6\u8fd9\u4e0a\u7740\u4e2a\u5730\u5230\u5927"+

"\u91cc\u8bf4\u5c31\u53bb\u5b50\u5f97\u4e5f\u548c\u90a3\u8981\u4e0b\u770b\u5929\u65f6\u8fc7\u51fa\u5c0f\u4e48\u8d77"+

"\u90fd\u628a\u597d\u8fd8\u591a\u6ca1\u4e3a\u53c8\u53ef\u5bb6\u5b66\u53ea\u4ee5\u4e3b\u4f1a\u6837\u5e74\u60f3\u751f\u540c\u8001\u4e2d\u5341"+

"\u4ece\u81ea\u9762\u524d\u5934\u9053\u5b83\u540e\u7136\u8d70\u5f88\u50cf\u89c1\u4e24\u7528\u5979\u56fd\u52a8\u8fdb\u6210\u56de\u4ec0\u8fb9"+

"\u4f5c\u5bf9\u5f00\u800c\u5df1\u4e9b\u73b0\u5c71\u6c11\u5019\u7ecf\u53d1\u5de5\u5411\u4e8b\u547d\u7ed9\u957f\u6c34\u51e0\u4e49\u4e09\u58f0"+

"\u4e8e\u9ad8\u624b\u77e5\u7406\u773c\u5fd7\u70b9\u5fc3\u6218\u4e8c\u95ee\u4f46\u8eab\u65b9\u5b9e\u5403\u505a\u53eb\u5f53\u4f4f\u542c\u9769"+

"\u6253\u5462\u771f\u5168\u624d\u56db\u5df2\u6240\u654c\u4e4b\u6700\u5149\u4ea7\u60c5\u8def\u5206\u603b\u6761\u767d\u8bdd\u4e1c\u5e2d\u6b21"+

"\u4eb2\u5982\u88ab\u82b1\u53e3\u653e\u513f\u5e38\u6c14\u4e94\u7b2c\u4f7f\u5199\u519b\u5427\u6587\u8fd0\u518d\u679c\u600e\u5b9a\u8bb8"+

"\u5feb\u660e\u884c\u56e0\u522b\u98de\u5916\u6811\u7269\u6d3b\u90e8\u95e8\u65e0\u5f80\u8239\u671b\u65b0\u5e26\u961f\u5148\u529b\u5b8c\u5374"+

"\u7ad9\u4ee3\u5458\u673a\u66f4\u4e5d\u60a8\u6bcf\u98ce\u7ea7\u8ddf\u7b11\u554a\u5b69\u4e07\u5c11\u76f4\u610f\u591c\u6bd4\u9636\u8fde\u8f66"+

"\u91cd\u4fbf\u6597\u9a6c\u54ea\u5316\u592a\u6307\u53d8\u793e\u4f3c\u58eb\u8005\u5e72\u77f3\u6ee1\u65e5\u51b3\u767e\u539f\u62ff\u7fa4\u7a76"+

"\u5404\u516d\u672c\u601d\u89e3\u7acb\u6cb3\u6751\u516b\u96be\u65e9\u8bba\u5417\u6839\u5171\u8ba9\u76f8\u7814\u4eca\u5176\u4e66\u5750\u63a5"+

"\u5e94\u5173\u4fe1\u89c9\u6b65\u53cd\u5904\u8bb0\u5c06\u5343\u627e\u4e89\u9886\u6216\u5e08\u7ed3\u5757\u8dd1\u8c01\u8349\u8d8a\u5b57\u52a0"+

"\u811a\u7d27\u7231\u7b49\u4e60\u9635\u6015\u6708\u9752\u534a\u706b\u6cd5\u9898\u5efa\u8d76\u4f4d\u5531\u6d77\u4e03\u5973\u4efb\u4ef6"+

"\u611f\u51c6\u5f20\u56e2\u5c4b\u79bb\u8272\u8138\u7247\u79d1\u5012\u775b\u5229\u4e16\u521a\u4e14\u7531\u9001\u5207\u661f\u5bfc\u665a\u8868"+

"\u591f\u6574\u8ba4\u54cd\u96ea\u6d41\u672a\u573a\u8be5\u5e76\u5e95\u6df1\u523b\u5e73\u4f1f\u5fd9\u63d0\u786e\u8fd1\u4eae\u8f7b\u8bb2"+

"\u519c\u53e4\u9ed1\u544a\u754c\u62c9\u540d\u5440\u571f\u6e05\u9633\u7167\u529e\u53f2\u6539\u5386\u8f6c\u753b\u9020\u5634\u6b64\u6cbb\u5317"+

"\u5fc5\u670d\u96e8\u7a7f\u5185\u8bc6\u9a8c\u4f20\u4e1a\u83dc\u722c\u7761\u5174\u5f62\u91cf\u54b1\u89c2\u82e6\u4f53\u4f17\u901a\u51b2\u5408"+

"\u7834\u53cb\u5ea6\u672f\u996d\u516c\u65c1\u623f\u6781\u5357\u67aa\u8bfb\u6c99\u5c81\u7ebf\u91ce\u575a\u7a7a\u6536\u7b97\u81f3"+

"\u653f\u57ce\u52b3\u843d\u94b1\u7279\u56f4\u5f1f\u80dc\u6559\u70ed\u5c55\u5305\u6b4c\u7c7b\u6e10\u5f3a\u6570\u4e61\u547c\u6027\u97f3\u7b54"+

"\u54e5\u9645\u65e7\u795e\u5ea7\u7ae0\u5e2e\u5566\u53d7\u7cfb\u4ee4\u8df3\u975e\u4f55\u725b\u53d6\u5165\u5cb8\u6562\u6389\u5ffd\u79cd\u88c5"+

"\u9876\u6025\u6797\u505c\u606f\u53e5\u533a\u8863\u822c\u62a5\u53f6\u538b\u6162\u53d4\u80cc\u7ec6"

//备选汉字的长度

int length = base.length()

//创建内存图像

BufferedImage image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB)

// 获取图形上下文

Graphics g = image.getGraphics()

//创建随机类的实例

Random random = new Random()

// 设定图像背景色(因为是做背景，所以偏淡)

g.setColor(getRandColor(random,200,250))

g.fillRect(0, 0, width, height)

//备选字体

String[] fontTypes = {"\u5b8b\u4f53","\u65b0\u5b8b\u4f53","\u9ed1\u4f53","\u6977\u4f53","\u96b6\u4e66"}

int fontTypesLength = fontTypes.length

//在图片背景上增加噪点

g.setColor(getRandColor(random,160,200))

g.setFont(new Font("Times New Roman",Font.PLAIN,14))

for (int i=0i<6i++)

{

g.drawString("*********************************************",0,5*(i+2))

}

//取随机产生的认证码(6个汉字)

//保存生成的汉字字符串

String sRand=""

for (int i=0i<4i++)

{

int start = random.nextInt(length)

String rand=base.substring(start,start+1)

sRand+=rand

//设置字体的颜色

g.setColor(getRandColor(random,10,150))

//设置字体

g.setFont(new Font(fontTypes[random.nextInt(fontTypesLength)],Font.BOLD,18 + random.nextInt(6)))

//将此汉字画到图片上

g.drawString(rand,24*i+ 10 + random.nextInt(8),24)

}

session.setAttribute("rand",sRand)

g.dispose()

ImageIO.write(image, "JPEG", response.getOutputStream())

%>