精确验证身份证号码合法性代码实例

快乐打工仔 分类:实例代码

当前有很多关于身份证合法性验证的代码,但是很多都不够精准,仅仅是对于号码的位数或者其他方面进行简单验证。

本章节分享一段实例代码,它能够比较精准的验证身份证合法性效果。

代码实例如下:

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="author" content="http://www.pipipi.net/" />
<title>犀牛前端部落</title>
<script src="http://libs.baidu.com/jquery/1.9.0/jquery.js"></script>
<script type="text/javascript">
function nunber(allowancePersonValue){ 
  if(allowancePersonValue=="身份证号"){ 
    $("#span_username").show(); 
    $("#span_username").html("身份证号不能为空"); 
    return false; 
  } 
  //校验长度,类型 
  else if(isCardNo(allowancePersonValue) === false){ 
    $("#span_username").show(); 
    $("#span_username").html("您输入的身份证号码不正确,请重新输入"); 
    return false; 
  } 
  //检查省份 
  else if(checkProvince(allowancePersonValue) === false){ 
    $("#span_username").show(); 
    $("#span_username").html("您输入的身份证号码不正确,请重新输入"); 
    return false; 
  } 
  //校验生日 
  else if(checkBirthday(allowancePersonValue) === false){ 
    $("#span_username").show(); 
    $("#span_username").html("您输入的身份证号码生日不正确,请重新输入"); 
    return false; 
  } 
  //检验位的检测 
  else if(checkParity(allowancePersonValue) === false){ 
    $("#span_username").show(); 
    $("#span_username").html("您的身份证校验位不正确,请重新输入"); 
    return false; 
  }
  else{ 
    $("#span_username").hide(); 
    return true; 
  } 
} 
   
//身份证省的编码 
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"
    }; 
   
//检查号码是否符合规范,包括长度,类型 
function isCardNo(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){ 
    //alert("demo"); 
    return false; 
  } 
  return true; 
} 
   
//取身份证前两位,校验省份 
function checkProvince(card){ 
  var province = card.substr(0,2); 
  if(vcity[province] == undefined){ 
    return false; 
  } 
  return true; 
} 
   
//检查生日是否正确 
function checkBirthday(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 
function verifyBirthday(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 
function checkParity(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 
function changeFivteenToEighteen(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; 
} 
$(document).ready(function(){
  $("#username").focus(function(){
    if(this.value=='身份证号'){
          this.value='';
        }
  })
  $("#username").blur(function(){
    if(this.value==''){
          this.value='身份证号';
        }
        nunber(this.value);
  })
});
</script>
</head>
<body>
<input type="text" class="reg_txt" value="身份证号" titles="请输入您的身份证号!" name="userid" id="username"><br> 
<span class="c_red" id="span_username"></span> 
</body>
</html>

回复

我来回复
  • 暂无回复内容