记录下来 要知其所以然
日常开发中经常会碰到校验表单的情况 下面是比较常见的身份证校验的一个完整js
const validateIdent = {
aIdentityCode_City: { // 城市代码列表
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 "
},
IdentityCode_isCardNo(card) { //检查号码是否符合规范，包括长度，类型
var reg = /(^\d{15}$)|(^\d{17}(\d|X)$)/; //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
if (reg.test(card) === false) {
return false;
}
return true;
},
IdentityCode_checkProvince(card) { //取身份证前两位，校验省份
var province = card.substr(0, 2);
if (validateIdent.aIdentityCode_City[province] == undefined) {
return false;
}
return true;
},
IdentityCode_checkBirthday(card) { //检查生日是否正确，15位以'19'年份来进行补齐。
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})$/;
var arr_data = card.match(re_fifteen); // 正则取号码内所含出年月日数据
var year = arr_data[2];
var month = arr_data[3];
var day = arr_data[4];
var birthday = new Date('19' + year + '/' + month + '/' + day);
return validateIdent.IdentityCode_verifyBirthday('19' + year, month, day, birthday);
}
//身份证18位时，次序为省（3位）市（3位）年（4位）月（2位）日（2位）校验位（4位），校验位末尾可能为X
if (len == '18') {
var re_eighteen = /^(\d{6})(\d{4})(\d{2})(\d{2})(\d{3})([0-9]|X)$/;
var arr_data = card.match(re_eighteen); // 正则取号码内所含出年月日数据
var year = arr_data[2];
var month = arr_data[3];
var day = arr_data[4];
var birthday = new Date(year + '/' + month + '/' + day);
return validateIdent.IdentityCode_verifyBirthday(year, month, day, birthday);
}
return false;
},
IdentityCode_verifyBirthday(year, month, day, birthday) { //校验日期 ，15位以'19'年份来进行补齐。
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150岁之间)
var time = now_year - year;
if (time >= 3 && time <= 150) {
return true;
}
return false;
}
return false;
},
IdentityCode_checkParity(card) { //校验位的检测
card = validateIdent.IdentityCode_changeFivteenToEighteen(card); // 15位转18位
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;
},
IdentityCode_changeFivteenToEighteen(card) { //15位转18位身份证号
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;
},
IdentityCodeValid(card) { // 身份证号码检验主入口
let pass = true;
let sex = ''
//是否为空
if (pass && card === '')
pass = false;
//校验长度，类型
if (pass && validateIdent.IdentityCode_isCardNo(card) === false)
pass = false;
//检查省份
if (pass && validateIdent.IdentityCode_checkProvince(card) === false)
pass = false;
//校验生日
if (pass && validateIdent.IdentityCode_checkBirthday(card) === false)
pass = false;
//检验位的检测
if (pass && validateIdent.IdentityCode_checkParity(card) === false)
pass = false;
if (pass) {
var iCard = validateIdent.IdentityCode_changeFivteenToEighteen(card);
if (parseInt(iCard.charAt(16)) % 2 == 0) {
sex = "0"; // 女生
} else {
sex = "1"; // 男生
}
return true
} else {
return false
}
}
}
export default validateIdent.IdentityCodeValid //导出
使用的时候直接导入对应页面即可
import IdentityCodeValid from '@/utils/checkIdent'
let data='1269392'
if (!IdentityCodeValid(data)) {
return callback(new Error('请输入正确身份证号'))
}
