JavaScript身份证校验源码

2021年2月2日 141点热度 0人点赞 0条评论
var idCardNoUtil = {
  /*省,直辖市代码表*/
  provinceAndCitys: {
      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"
  },

  /*每位加权因子*/
  powers: ["7", "9", "10", "5", "8", "4", "2", "1", "6", "3", "7", "9", "10", "5", "8", "4", "2"],

  /*第18位校检码*/
  parityBit: ["1", "0", "X", "9", "8", "7", "6", "5", "4", "3", "2"],

  /*性别*/
  genders: { male: "男", female: "女" },

  /*校验地址码*/
  checkAddressCode: function(addressCode) {
      var check = /^[1-9]\d{5}$/.test(addressCode);
      if (!check) return false;
      if (idCardNoUtil.provinceAndCitys[parseInt(addressCode.substring(0, 2))]) {
          return true;
      } else {
          return false;
      }
  },

  /*校验日期码*/
  checkBirthDayCode: function(birDayCode) {
      var check = /^[1-9]\d{3}((0[1-9])|(1[0-2]))((0[1-9])|([1-2][0-9])|(3[0-1]))$/.test(birDayCode);
      if (!check) return false;
      var yyyy = parseInt(birDayCode.substring(0, 4), 10);
      var mm = parseInt(birDayCode.substring(4, 6), 10);
      var dd = parseInt(birDayCode.substring(6), 10);
      var xdata = new Date(yyyy, mm - 1, dd);
      if (xdata > new Date()) {
          return false; //生日不能大于当前日期
      } else if ((xdata.getFullYear() == yyyy) && (xdata.getMonth() == mm - 1) && (xdata.getDate() == dd)) {
          return true;
      } else {
          return false;
      }
  },

  /*计算校检码*/
  getParityBit: function(idCardNo) {
      var id17 = idCardNo.substring(0, 17);
      /*加权 */
      var power = 0;
      for (var i = 0; i < 17; i++) {
          power += parseInt(id17.charAt(i), 10) * parseInt(idCardNoUtil.powers[i]);
      }
      /*取模*/
      var mod = power % 11;
      return idCardNoUtil.parityBit[mod];
  },

  /*验证校检码*/
  checkParityBit: function(idCardNo) {
      var parityBit = idCardNo.charAt(17).toUpperCase();
      if (idCardNoUtil.getParityBit(idCardNo) == parityBit) {
          return true;
      } else {
          return false;
      }
  },

  /*校验15位或18位的身份证号码*/
  checkIdCardNo: function(idCardNo) {
      //15位和18位身份证号码的基本校验
      var check = /^\d{15}|(\d{17}(\d|x|X))$/.test(idCardNo);
      if (!check) return false;
      //判断长度为15位或18位 
      if (idCardNo.length == 15) {
          return idCardNoUtil.check15IdCardNo(idCardNo);
      } else if (idCardNo.length == 18) {
          return idCardNoUtil.check18IdCardNo(idCardNo);
      } else {
          return false;
      }
  },

  //校验15位的身份证号码
  check15IdCardNo: function(idCardNo) {
      //15位身份证号码的基本校验
      var check = /^[1-9]\d{7}((0[1-9])|(1[0-2]))((0[1-9])|([1-2][0-9])|(3[0-1]))\d{3}$/.test(idCardNo);
      if (!check) return false;
      //校验地址码
      var addressCode = idCardNo.substring(0, 6);
      check = idCardNoUtil.checkAddressCode(addressCode);
      if (!check) return false;
      var birDayCode = '19' + idCardNo.substring(6, 12);
      //校验日期码
      return idCardNoUtil.checkBirthDayCode(birDayCode);
  },

  //校验18位的身份证号码
  check18IdCardNo: function(idCardNo) {
      //18位身份证号码的基本格式校验
      var check = /^[1-9]\d{5}[1-9]\d{3}((0[1-9])|(1[0-2]))((0[1-9])|([1-2][0-9])|(3[0-1]))\d{3}(\d|x|X)$/.test(idCardNo);
      if (!check) return false;
      //校验地址码
      var addressCode = idCardNo.substring(0, 6);
      check = idCardNoUtil.checkAddressCode(addressCode);
      if (!check) return false;
      //校验日期码
      var birDayCode = idCardNo.substring(6, 14);
      check = idCardNoUtil.checkBirthDayCode(birDayCode);
      if (!check) return false;
      //验证校检码  
      return idCardNoUtil.checkParityBit(idCardNo);
  },

  formateDateCN: function(day) {
      var yyyy = day.substring(0, 4);
      var mm = day.substring(4, 6);
      var dd = day.substring(6);
      return yyyy + '-' + mm + '-' + dd;
  },

  //获取信息
  getIdCardInfo: function(idCardNo) {
      var idCardInfo = {
          gender: "", //性别
          birthday: "" // 出生日期(yyyy-mm-dd)
      };
      if (idCardNo.length == 15) {
          var aday = '19' + idCardNo.substring(6, 12);
          idCardInfo.birthday = idCardNoUtil.formateDateCN(aday);
          if (parseInt(idCardNo.charAt(14)) % 2 == 0) {
              idCardInfo.gender = idCardNoUtil.genders.female;
          } else {
              idCardInfo.gender = idCardNoUtil.genders.male;
          }
      } else if (idCardNo.length == 18) {
          var aday = idCardNo.substring(6, 14);
          idCardInfo.birthday = idCardNoUtil.formateDateCN(aday);
          if (parseInt(idCardNo.charAt(16)) % 2 == 0) {
              idCardInfo.gender = idCardNoUtil.genders.female;
          } else {
              idCardInfo.gender = idCardNoUtil.genders.male;
          }

      }
      return idCardInfo;
  },

  /*18位转15位*/
  getId15: function(idCardNo) {
      if (idCardNo.length == 15) {
          return idCardNo;
      } else if (idCardNo.length == 18) {
          return idCardNo.substring(0, 6) + idCardNo.substring(8, 17);
      } else {
          return null;
      }
  },

  /*15位转18位*/
  getId18: function(idCardNo) {
      if (idCardNo.length == 15) {
          var id17 = idCardNo.substring(0, 6) + '19' + idCardNo.substring(6);
          var parityBit = idCardNoUtil.getParityBit(id17);
          return id17 + parityBit;
      } else if (idCardNo.length == 18) {
          return idCardNo;
      } else {
          return null;
      }
  }
};

module.exports = {
  idCardNoUtil
}

 

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