15位和18位身份证JS校验的简单实例

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;  } }};//身份证号码验证  jQuery.validator.addMethod("idCardNo", function(value, element) {   return this.optional(element) || idCardNoUtil.checkIdCardNo(value); }, "Please specify a valid ID number."); //获取身份证信息 var idCardInfo = idCardNoUtil.getIdCardInfo(idCardNo); alert(idCardInfo.gender + "|" + idCardInfo.birthday); 注：录入并判断数据库中是否已存在同样的身份证时 (1) 若输入的是15位的身份证：先查找15位的ID是否存在，若不存在还需要将15位的身份证转成18位的身份证，仍不存在的话才可录入系统。 (2) 若输入的是18位的身份证：先查找18位的ID是否存在，若不存在还需要将18位的身份证转成15位的身份证，仍不存在的话才可录入系统。 如果找到对应的15位身份证，需要将15位的更新到18位。