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云代码 - javascript代码库

完美验证身份证

2016-09-05 作者: fw325举报

[javascript]代码库

<!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" xml:lang="en">
<head>
	<meta http-equiv="Content-Type" content="text/html;charset=UTF-8" />
	<title></title>
	<script type="text/javascript"> 
var vcity={ 11:"北京",12:"天津",13:"河北",14:"山西",15:"内蒙古",  
            21:"辽宁",22:"吉林",23:"黑龙江",31:"上海",32:"江苏",  
            33:"浙江",34:"安徽",35:"福建",36:"江西",37:"山东",41:"河南",  
            42:"湖北",43:"湖南",44:"广东",45:"广西",46:"海南",50:"重庆",  
            51:"四川",52:"贵州",53:"云南",54:"西藏",61:"陕西",62:"甘肃",  
            63:"青海",64:"宁夏",65:"新疆",71:"台湾",81:"香港",82:"澳门",91:"国外"  
           };  
  
checkCard = function()  
{  
    var card = document.getElementById('card_no').value;  
    //是否为空  
    if(card === '')  
    {  
        alert('请输入身份证号,身份证号不能为空');  
        document.getElementById('card_no').focus;  
        return false;  
    }  
    //校验长度,类型  
    if(isCardNo(card) === false)  
    {  
        alert('您输入的身份证号码不正确,请重新输入');  
        document.getElementById('card_no').focus;  
        return false;  
    }  
    //检查省份  
    if(checkProvince(card) === false)  
    {  
        alert('您输入的身份证号码不正确,请重新输入');  
        document.getElementById('card_no').focus;  
        return false;  
    }  
    //校验生日  
    if(checkBirthday(card) === false)  
    {  
        alert('您输入的身份证号码生日不正确,请重新输入');  
        document.getElementById('card_no').focus();  
        return false;  
    }  
    //检验位的检测  
    if(checkParity(card) === false)  
    {  
        alert('您的身份证校验位不正确,请重新输入');  
        document.getElementById('card_no').focus();  
        return false;  
    }  
    alert('OK');  
    return true;  
};  
  
  
//检查号码是否符合规范,包括长度,类型  
isCardNo = function(card)  
{  
    //身份证号码为15位或者18位,15位时全为数字,18位前17位为数字,最后一位是校验位,可能为数字或字符X  
    var reg = /(^\d{15}$)|(^\d{17}(\d|X)$)/;  
    if(reg.test(card) === false)  
    {  
        return false;  
    }  
  
    return true;  
};  
  
//取身份证前两位,校验省份  
checkProvince = function(card)  
{  
    var province = card.substr(0,2);  
    if(vcity[province] == undefined)  
    {  
        return false;  
    }  
    return true;  
};  
  
//检查生日是否正确  
checkBirthday = function(card)  
{  
    var len = card.length;  
    //身份证15位时,次序为省(3位)市(3位)年(2位)月(2位)日(2位)校验位(3位),皆为数字  
    if(len == '15')  
    {  
        var re_fifteen = /^(\d{6})(\d{2})(\d{2})(\d{2})(\d{3})$/;   
        var arr_data = card.match(re_fifteen);  
        var year = arr_data[2];  
        var month = arr_data[3];  
        var day = arr_data[4];  
        var birthday = new Date('19'+year+'/'+month+'/'+day);  
        return verifyBirthday('19'+year,month,day,birthday);  
    }  
    //身份证18位时,次序为省(3位)市(3位)年(4位)月(2位)日(2位)校验位(4位),校验位末尾可能为X  
    if(len == '18')  
    {  
        var re_eighteen = /^(\d{6})(\d{4})(\d{2})(\d{2})(\d{3})([0-9]|X)$/;  
        var arr_data = card.match(re_eighteen);  
        var year = arr_data[2];  
        var month = arr_data[3];  
        var day = arr_data[4];  
        var birthday = new Date(year+'/'+month+'/'+day);  
        return verifyBirthday(year,month,day,birthday);  
    }  
    return false;  
};  
  
//校验日期  
verifyBirthday = function(year,month,day,birthday)  
{  
    var now = new Date();  
    var now_year = now.getFullYear();  
    //年月日是否合理  
    if(birthday.getFullYear() == year && (birthday.getMonth() + 1) == month && birthday.getDate() == day)  
    {  
        //判断年份的范围(3岁到100岁之间)  
        var time = now_year - year;  
        if(time >= 3 && time <= 100)  
        {  
            return true;  
        }  
        return false;  
    }  
    return false;  
};  
  
//校验位的检测  
checkParity = function(card)  
{  
    //15位转18位  
    card = changeFivteenToEighteen(card);  
    var len = card.length;  
    if(len == '18')  
    {  
        var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2);   
        var arrCh = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2');   
        var cardTemp = 0, i, valnum;   
        for(i = 0; i < 17; i ++)   
        {   
            cardTemp += card.substr(i, 1) * arrInt[i];   
        }   
        valnum = arrCh[cardTemp % 11];   
        if (valnum == card.substr(17, 1))   
        {  
            return true;  
        }  
        return false;  
    }  
    return false;  
};  
  
//15位转18位身份证号  
changeFivteenToEighteen = function(card)  
{  
    if(card.length == '15')  
    {  
        var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2);   
        var arrCh = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2');   
        var cardTemp = 0, i;     
        card = card.substr(0, 6) + '19' + card.substr(6, card.length - 6);  
        for(i = 0; i < 17; i ++)   
        {   
            cardTemp += card.substr(i, 1) * arrInt[i];   
        }   
        card += arrCh[cardTemp % 11];   
        return card;  
    }  
    return card;  
}; 	
	</script>
</head>
<body>
请输入身份证号码:  
  
<input name='card_no' type='text' id='card_no' value='' />  
  
<input type='button' name='submit' value='click me' onclick='javascript:checkCard();' />  
  
</body>  	
</body>
</html>


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