详细的身份证号码验证(JavaScript正则表达式)

来源：互联网发布：linux自动启动服务编辑：程序博客网时间：2024/05/11 00:58

   checkCard = function(obj)
   {
       //var card = document.getElementById('card_no').value;
       //是否为空
      // if(card === '')
      // {

      //     return false;
       //}
       //校验长度，类型
       if(isCardNo(obj) === false)
       {

           return false;
       }
       //检查省份
       if(checkProvince(obj) === false)
       {

           return false;
       }
       //校验生日
       if(checkBirthday(obj) === false)
       {

           return false;
       }
       //检验位的检测
       if(checkParity(obj) === false)
       {

           return false;
       }
       return true;
   };


   //检查号码是否符合规范，包括长度，类型
   isCardNo = function(obj)
   {
       //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(obj) === false)
       {
           return false;
       }

       return true;
   };

   //取身份证前两位,校验省份
   checkProvince = function(obj)
   {
       var province = obj.substr(0,2);
       if(vcity[province] == undefined)
       {
           return false;
       }
       return true;
   };

   //检查生日是否正确
   checkBirthday = function(obj)
   {
       var len = obj.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})$/;
           var arr_data = obj.match(re_fifteen);
           var year = arr_data[2];
           var month = arr_data[3];
           var day = arr_data[4];
           var birthday = new Date('19'+year+'/'+month+'/'+day);
           return verifyBirthday('19'+year,month,day,birthday);
       }
       //身份证18位时，次序为省（3位）市（3位）年（4位）月（2位）日（2位）校验位（4位），校验位末尾可能为X
       if(len == '18')
       {
           var re_eighteen = /^(\d{6})(\d{4})(\d{2})(\d{2})(\d{3})([0-9]|X)$/;
           var arr_data = obj.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 >= 0 && time <= 130)
           {
               return true;
           }
           return false;
       }
       return false;
   };

   //校验位的检测
   checkParity = function(obj)
   {
       //15位转18位
       obj = changeFivteenToEighteen(obj);
       var len = obj.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 += obj.substr(i, 1) * arrInt[i];
           }
           valnum = arrCh[cardTemp % 11];
           if (valnum == obj.substr(17, 1))
           {
               return true;
           }
           return false;
       }
       return false;
   };

   //15位转18位身份证号
   changeFivteenToEighteen = function(obj)
   {
       if(obj.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;
           obj = obj.substr(0, 6) + '19' + obj.substr(6, obj.length - 6);
           for(i = 0; i < 17; i ++)
           {
               cardTemp += obj.substr(i, 1) * arrInt[i];
           }
           obj += arrCh[cardTemp % 11];
           return obj;
       }
       return obj;
   };