js、javascript正则表达式验证身份证号码

前言

有些业务场景需要用户的身份证号码,但是又不想让用户随意填写,这个时候就需要去检查用户输入的合法性,当然并不能做到像公安系统那样完全正确,但或多或少可以避免一些简单的随意乱写。下面就直接上代码

简单的方法:

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}$)|(^\d{18}$)|(^\d{17}(\d|X|x)$)/;
   if(reg.test(card) === false)
   {
       alert("身份证输入不合法");
       return  false;
   }
}

另外一个完美解决方案:

/*
根据〖中华人民共和国国家标准 GB 11643-1999〗中有关公民身份号码的规定,公民身份号码是特征组合码,由十七位数字本体码和一位数字校验码组成。排列顺序从左至右依次为:六位数字地址码,八位数字出生日期码,三位数字顺序码和一位数字校验码。
    地址码表示编码对象常住户口所在县(市、旗、区)的行政区划代码。
    出生日期码表示编码对象出生的年、月、日,其中年份用四位数字表示,年、月、日之间不用分隔符。
    顺序码表示同一地址码所标识的区域范围内,对同年、月、日出生的人员编定的顺序号。顺序码的奇数分给男性,偶数分给女性。
    校验码是根据前面十七位数字码,按照ISO 7064:1983.MOD 11-2校验码计算出来的检验码。

出生日期计算方法。
    15位的身份证编码首先把出生年扩展为4位,简单的就是增加一个19或18,这样就包含了所有1800-1999年出生的人;
    2000年后出生的肯定都是18位的了没有这个烦恼,至于1800年前出生的,那啥那时应该还没身份证号这个东东,⊙﹏⊙b汗...
下面是正则表达式:
 出生日期1800-2099  (18|19|20)?\d{2}(0[1-9]|1[12])(0[1-9]|[12]\d|3[01])
 身份证正则表达式 /^\d{6}(18|19|20)?\d{2}(0[1-9]|1[12])(0[1-9]|[12]\d|3[01])\d{3}(\d|X)$/i            
 15位校验规则 6位地址编码+6位出生日期+3位顺序号
 18位校验规则 6位地址编码+8位出生日期+3位顺序号+1位校验位

 校验位规则     公式:∑(ai×Wi)(mod 11)……………………………………(1)
                公式(1)中: 
                i----表示号码字符从由至左包括校验码在内的位置序号; 
                ai----表示第i位置上的号码字符值; 
                Wi----示第i位置上的加权因子,其数值依据公式Wi=2^(n-1)(mod 11)计算得出。
                i 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
                Wi 7 9 10 5 8 4 2 1 6 3 7 9 10 5 8 4 2 1

*/
//身份证号合法性验证 
//支持15位和18位身份证号
//支持地址编码、出生日期、校验位验证
        function IdentityCodeValid(code) { 
            var city={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 "};
            var tip = "";
            var pass= true;

            if(!code || !/^\d{6}(18|19|20)?\d{2}(0[1-9]|1[12])(0[1-9]|[12]\d|3[01])\d{3}(\d|X)$/i.test(code)){
                tip = "身份证号格式错误";
                pass = false;
            }

           else if(!city[code.substr(0,2)]){
                tip = "地址编码错误";
                pass = false;
            }
            else{
                //18位身份证需要验证最后一位校验位
                if(code.length == 18){
                    code = code.split('');
                    //∑(ai×Wi)(mod 11)
                    //加权因子
                    var factor = [ 7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2 ];
                    //校验位
                    var parity = [ 1, 0, 'X', 9, 8, 7, 6, 5, 4, 3, 2 ];
                    var sum = 0;
                    var ai = 0;
                    var wi = 0;
                    for (var i = 0; i < 17; i++)
                    {
                        ai = code[i];
                        wi = factor[i];
                        sum += ai * wi;
                    }
                    var last = parity[sum % 11];
                    if(parity[sum % 11] != code[17]){
                        tip = "校验位错误";
                        pass =false;
                    }
                }
            }
            if(!pass) alert(tip);
            return pass;
        }
        var c = '130981199312253466';
       var res= IdentityCodeValid(c);

网上另外一个java版本

/**
 * Copyright (C) 2009-2010 Yichuan, Fuchun All rights reserved.
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * @(#) IdcardUtils.java Date: 2010-06-17
 */
package my.tools;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.HashMap;
import java.util.Map;

import org.apache.commons.lang.StringUtils;

/**
 * 身份证工具类
 * 
 * @author June
 * @version 1.0, 2010-06-17
 */
public class IdcardUtils extends StringUtils {

    /** 中国公民身份证号码最小长度。 */
    public static final int CHINA_ID_MIN_LENGTH = 15;

    /** 中国公民身份证号码最大长度。 */
    public static final int CHINA_ID_MAX_LENGTH = 18;

    /** 省、直辖市代码表 */
    public static final String cityCode[] = {
            "11", "12", "13", "14", "15", "21", "22", "23", "31", "32", "33", "34", "35", "36", "37", "41",
            "42", "43", "44", "45", "46", "50", "51", "52", "53", "54", "61", "62", "63", "64", "65", "71",
            "81", "82", "91"
    };

    /** 每位加权因子 */
    public static final int power[] = {
            7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2
    };

    /** 第18位校检码 */
    public static final String verifyCode[] = {
            "1", "0", "X", "9", "8", "7", "6", "5", "4", "3", "2"
    };
    /** 最低年限 */
    public static final int MIN = 1930;
    public static Map<String, String> cityCodes = new HashMap<String, String>();
    /** 台湾身份首字母对应数字 */
    public static Map<String, Integer> twFirstCode = new HashMap<String, Integer>();
    /** 香港身份首字母对应数字 */
    public static Map<String, Integer> hkFirstCode = new HashMap<String, Integer>();
    static {
        cityCodes.put("11", "北京");
        cityCodes.put("12", "天津");
        cityCodes.put("13", "河北");
        cityCodes.put("14", "山西");
        cityCodes.put("15", "内蒙古");
        cityCodes.put("21", "辽宁");
        cityCodes.put("22", "吉林");
        cityCodes.put("23", "黑龙江");
        cityCodes.put("31", "上海");
        cityCodes.put("32", "江苏");
        cityCodes.put("33", "浙江");
        cityCodes.put("34", "安徽");
        cityCodes.put("35", "福建");
        cityCodes.put("36", "江西");
        cityCodes.put("37", "山东");
        cityCodes.put("41", "河南");
        cityCodes.put("42", "湖北");
        cityCodes.put("43", "湖南");
        cityCodes.put("44", "广东");
        cityCodes.put("45", "广西");
        cityCodes.put("46", "海南");
        cityCodes.put("50", "重庆");
        cityCodes.put("51", "四川");
        cityCodes.put("52", "贵州");
        cityCodes.put("53", "云南");
        cityCodes.put("54", "西藏");
        cityCodes.put("61", "陕西");
        cityCodes.put("62", "甘肃");
        cityCodes.put("63", "青海");
        cityCodes.put("64", "宁夏");
        cityCodes.put("65", "新疆");
        cityCodes.put("71", "台湾");
        cityCodes.put("81", "香港");
        cityCodes.put("82", "澳门");
        cityCodes.put("91", "国外");
        twFirstCode.put("A", 10);
        twFirstCode.put("B", 11);
        twFirstCode.put("C", 12);
        twFirstCode.put("D", 13);
        twFirstCode.put("E", 14);
        twFirstCode.put("F", 15);
        twFirstCode.put("G", 16);
        twFirstCode.put("H", 17);
        twFirstCode.put("J", 18);
        twFirstCode.put("K", 19);
        twFirstCode.put("L", 20);
        twFirstCode.put("M", 21);
        twFirstCode.put("N", 22);
        twFirstCode.put("P", 23);
        twFirstCode.put("Q", 24);
        twFirstCode.put("R", 25);
        twFirstCode.put("S", 26);
        twFirstCode.put("T", 27);
        twFirstCode.put("U", 28);
        twFirstCode.put("V", 29);
        twFirstCode.put("X", 30);
        twFirstCode.put("Y", 31);
        twFirstCode.put("W", 32);
        twFirstCode.put("Z", 33);
        twFirstCode.put("I", 34);
        twFirstCode.put("O", 35);
        hkFirstCode.put("A", 1);
        hkFirstCode.put("B", 2);
        hkFirstCode.put("C", 3);
        hkFirstCode.put("R", 18);
        hkFirstCode.put("U", 21);
        hkFirstCode.put("Z", 26);
        hkFirstCode.put("X", 24);
        hkFirstCode.put("W", 23);
        hkFirstCode.put("O", 15);
        hkFirstCode.put("N", 14);
    }

    /**
     * 将15位身份证号码转换为18位
     * 
     * @param idCard
     *            15位身份编码
     * @return 18位身份编码
     */
    public static String conver15CardTo18(String idCard) {
        String idCard18 = "";
        if (idCard.length() != CHINA_ID_MIN_LENGTH) {
            return null;
        }
        if (isNum(idCard)) {
            // 获取出生年月日
            String birthday = idCard.substring(6, 12);
            Date birthDate = null;
            try {
                birthDate = new SimpleDateFormat("yyMMdd").parse(birthday);
            } catch (ParseException e) {
                e.printStackTrace();
            }
            Calendar cal = Calendar.getInstance();
            if (birthDate != null)
                cal.setTime(birthDate);
            // 获取出生年(完全表现形式,如:2010)
            String sYear = String.valueOf(cal.get(Calendar.YEAR));
            idCard18 = idCard.substring(0, 6) + sYear + idCard.substring(8);
            // 转换字符数组
            char[] cArr = idCard18.toCharArray();
            if (cArr != null) {
                int[] iCard = converCharToInt(cArr);
                int iSum17 = getPowerSum(iCard);
                // 获取校验位
                String sVal = getCheckCode18(iSum17);
                if (sVal.length() > 0) {
                    idCard18 += sVal;
                } else {
                    return null;
                }
            }
        } else {
            return null;
        }
        return idCard18;
    }

    /**
     * 验证身份证是否合法
     */
    public static boolean validateCard(String idCard) {
        String card = idCard.trim();
        if (validateIdCard18(card)) {
            return true;
        }
        if (validateIdCard15(card)) {
            return true;
        }
        String[] cardval = validateIdCard10(card);
        if (cardval != null) {
            if (cardval[2].equals("true")) {
                return true;
            }
        }
        return false;
    }

    /**
     * 验证18位身份编码是否合法
     * 
     * @param idCard 身份编码
     * @return 是否合法
     */
    public static boolean validateIdCard18(String idCard) {
        boolean bTrue = false;
        if (idCard.length() == CHINA_ID_MAX_LENGTH) {
            // 前17位
            String code17 = idCard.substring(0, 17);
            // 第18位
            String code18 = idCard.substring(17, CHINA_ID_MAX_LENGTH);
            if (isNum(code17)) {
                char[] cArr = code17.toCharArray();
                if (cArr != null) {
                    int[] iCard = converCharToInt(cArr);
                    int iSum17 = getPowerSum(iCard);
                    // 获取校验位
                    String val = getCheckCode18(iSum17);
                    if (val.length() > 0) {
                        if (val.equalsIgnoreCase(code18)) {
                            bTrue = true;
                        }
                    }
                }
            }
        }
        return bTrue;
    }

    /**
     * 验证15位身份编码是否合法
     * 
     * @param idCard
     *            身份编码
     * @return 是否合法
     */
    public static boolean validateIdCard15(String idCard) {
        if (idCard.length() != CHINA_ID_MIN_LENGTH) {
            return false;
        }
        if (isNum(idCard)) {
            String proCode = idCard.substring(0, 2);
            if (cityCodes.get(proCode) == null) {
                return false;
            }
            String birthCode = idCard.substring(6, 12);
            Date birthDate = null;
            try {
                birthDate = new SimpleDateFormat("yy").parse(birthCode.substring(0, 2));
            } catch (ParseException e) {
                e.printStackTrace();
            }
            Calendar cal = Calendar.getInstance();
            if (birthDate != null)
                cal.setTime(birthDate);
            if (!valiDate(cal.get(Calendar.YEAR), Integer.valueOf(birthCode.substring(2, 4)),
                    Integer.valueOf(birthCode.substring(4, 6)))) {
                return false;
            }
        } else {
            return false;
        }
        return true;
    }

    /**
     * 验证10位身份编码是否合法
     * 
     * @param idCard 身份编码
     * @return 身份证信息数组
     *         <p>
     *         [0] - 台湾、澳门、香港 [1] - 性别(男M,女F,未知N) [2] - 是否合法(合法true,不合法false)
     *         若不是身份证件号码则返回null
     *         </p>
     */
    public static String[] validateIdCard10(String idCard) {
        String[] info = new String[3];
        String card = idCard.replaceAll("[\\(|\\)]", "");
        if (card.length() != 8 && card.length() != 9 && idCard.length() != 10) {
            return null;
        }
        if (idCard.matches("^[a-zA-Z][0-9]{9}$")) { // 台湾
            info[0] = "台湾";
            System.out.println("11111");
            String char2 = idCard.substring(1, 2);
            if (char2.equals("1")) {
                info[1] = "M";
                System.out.println("MMMMMMM");
            } else if (char2.equals("2")) {
                info[1] = "F";
                System.out.println("FFFFFFF");
            } else {
                info[1] = "N";
                info[2] = "false";
                System.out.println("NNNN");
                return info;
            }
            info[2] = validateTWCard(idCard) ? "true" : "false";
        } else if (idCard.matches("^[1|5|7][0-9]{6}\\(?[0-9A-Z]\\)?$")) { // 澳门
            info[0] = "澳门";
            info[1] = "N";
            // TODO
        } else if (idCard.matches("^[A-Z]{1,2}[0-9]{6}\\(?[0-9A]\\)?$")) { // 香港
            info[0] = "香港";
            info[1] = "N";
            info[2] = validateHKCard(idCard) ? "true" : "false";
        } else {
            return null;
        }
        return info;
    }

    /**
     * 验证台湾身份证号码
     * 
     * @param idCard
     *            身份证号码
     * @return 验证码是否符合
     */
    public static boolean validateTWCard(String idCard) {
        String start = idCard.substring(0, 1);
        String mid = idCard.substring(1, 9);
        String end = idCard.substring(9, 10);
        Integer iStart = twFirstCode.get(start);
        Integer sum = iStart / 10 + (iStart % 10) * 9;
        char[] chars = mid.toCharArray();
        Integer iflag = 8;
        for (char c : chars) {
            sum = sum + Integer.valueOf(c + "") * iflag;
            iflag--;
        }
        return (sum % 10 == 0 ? 0 : (10 - sum % 10)) == Integer.valueOf(end) ? true : false;
    }

    /**
     * 验证香港身份证号码(存在Bug,部份特殊身份证无法检查)
     * <p>
     * 身份证前2位为英文字符,如果只出现一个英文字符则表示第一位是空格,对应数字58 前2位英文字符A-Z分别对应数字10-35
     * 最后一位校验码为0-9的数字加上字符"A","A"代表10
     * </p>
     * <p>
     * 将身份证号码全部转换为数字,分别对应乘9-1相加的总和,整除11则证件号码有效
     * </p>
     * 
     * @param idCard 身份证号码
     * @return 验证码是否符合
     */
    public static boolean validateHKCard(String idCard) {
        String card = idCard.replaceAll("[\\(|\\)]", "");
        Integer sum = 0;
        if (card.length() == 9) {
            sum = (Integer.valueOf(card.substring(0, 1).toUpperCase().toCharArray()[0]) - 55) * 9
                    + (Integer.valueOf(card.substring(1, 2).toUpperCase().toCharArray()[0]) - 55) * 8;
            card = card.substring(1, 9);
        } else {
            sum = 522 + (Integer.valueOf(card.substring(0, 1).toUpperCase().toCharArray()[0]) - 55) * 8;
        }
        String mid = card.substring(1, 7);
        String end = card.substring(7, 8);
        char[] chars = mid.toCharArray();
        Integer iflag = 7;
        for (char c : chars) {
            sum = sum + Integer.valueOf(c + "") * iflag;
            iflag--;
        }
        if (end.toUpperCase().equals("A")) {
            sum = sum + 10;
        } else {
            sum = sum + Integer.valueOf(end);
        }
        return (sum % 11 == 0) ? true : false;
    }

    /**
     * 将字符数组转换成数字数组
     * 
     * @param ca
     *            字符数组
     * @return 数字数组
     */
    public static int[] converCharToInt(char[] ca) {
        int len = ca.length;
        int[] iArr = new int[len];
        try {
            for (int i = 0; i < len; i++) {
                iArr[i] = Integer.parseInt(String.valueOf(ca[i]));
            }
        } catch (NumberFormatException e) {
            e.printStackTrace();
        }
        return iArr;
    }

    /**
     * 将身份证的每位和对应位的加权因子相乘之后,再得到和值
     * 
     * @param iArr
     * @return 身份证编码。
     */
    public static int getPowerSum(int[] iArr) {
        int iSum = 0;
        if (power.length == iArr.length) {
            for (int i = 0; i < iArr.length; i++) {
                for (int j = 0; j < power.length; j++) {
                    if (i == j) {
                        iSum = iSum + iArr[i] * power[j];
                    }
                }
            }
        }
        return iSum;
    }

    /**
     * 将power和值与11取模获得余数进行校验码判断
     * 
     * @param iSum
     * @return 校验位
     */
    public static String getCheckCode18(int iSum) {
        String sCode = "";
        switch (iSum % 11) {
        case 10:
            sCode = "2";
            break;
        case 9:
            sCode = "3";
            break;
        case 8:
            sCode = "4";
            break;
        case 7:
            sCode = "5";
            break;
        case 6:
            sCode = "6";
            break;
        case 5:
            sCode = "7";
            break;
        case 4:
            sCode = "8";
            break;
        case 3:
            sCode = "9";
            break;
        case 2:
            sCode = "x";
            break;
        case 1:
            sCode = "0";
            break;
        case 0:
            sCode = "1";
            break;
        }
        return sCode;
    }

    /**
     * 根据身份编号获取年龄
     * 
     * @param idCard
     *            身份编号
     * @return 年龄
     */
    public static int getAgeByIdCard(String idCard) {
        int iAge = 0;
        if (idCard.length() == CHINA_ID_MIN_LENGTH) {
            idCard = conver15CardTo18(idCard);
        }
        String year = idCard.substring(6, 10);
        Calendar cal = Calendar.getInstance();
        int iCurrYear = cal.get(Calendar.YEAR);
        iAge = iCurrYear - Integer.valueOf(year);
        return iAge;
    }

    /**
     * 根据身份编号获取生日
     * 
     * @param idCard 身份编号
     * @return 生日(yyyyMMdd)
     */
    public static String getBirthByIdCard(String idCard) {
        Integer len = idCard.length();
        if (len < CHINA_ID_MIN_LENGTH) {
            return null;
        } else if (len == CHINA_ID_MIN_LENGTH) {
            idCard = conver15CardTo18(idCard);
        }
        return idCard.substring(6, 14);
    }

    /**
     * 根据身份编号获取生日年
     * 
     * @param idCard 身份编号
     * @return 生日(yyyy)
     */
    public static Short getYearByIdCard(String idCard) {
        Integer len = idCard.length();
        if (len < CHINA_ID_MIN_LENGTH) {
            return null;
        } else if (len == CHINA_ID_MIN_LENGTH) {
            idCard = conver15CardTo18(idCard);
        }
        return Short.valueOf(idCard.substring(6, 10));
    }

    /**
     * 根据身份编号获取生日月
     * 
     * @param idCard
     *            身份编号
     * @return 生日(MM)
     */
    public static Short getMonthByIdCard(String idCard) {
        Integer len = idCard.length();
        if (len < CHINA_ID_MIN_LENGTH) {
            return null;
        } else if (len == CHINA_ID_MIN_LENGTH) {
            idCard = conver15CardTo18(idCard);
        }
        return Short.valueOf(idCard.substring(10, 12));
    }

    /**
     * 根据身份编号获取生日天
     * 
     * @param idCard
     *            身份编号
     * @return 生日(dd)
     */
    public static Short getDateByIdCard(String idCard) {
        Integer len = idCard.length();
        if (len < CHINA_ID_MIN_LENGTH) {
            return null;
        } else if (len == CHINA_ID_MIN_LENGTH) {
            idCard = conver15CardTo18(idCard);
        }
        return Short.valueOf(idCard.substring(12, 14));
    }

    /**
     * 根据身份编号获取性别
     * 
     * @param idCard 身份编号
     * @return 性别(M-男,F-女,N-未知)
     */
    public static String getGenderByIdCard(String idCard) {
        String sGender = "N";
        if (idCard.length() == CHINA_ID_MIN_LENGTH) {
            idCard = conver15CardTo18(idCard);
        }
        String sCardNum = idCard.substring(16, 17);
        if (Integer.parseInt(sCardNum) % 2 != 0) {
            sGender = "M";
        } else {
            sGender = "F";
        }
        return sGender;
    }

    /**
     * 根据身份编号获取户籍省份
     * 
     * @param idCard 身份编码
     * @return 省级编码。
     */
    public static String getProvinceByIdCard(String idCard) {
        int len = idCard.length();
        String sProvince = null;
        String sProvinNum = "";
        if (len == CHINA_ID_MIN_LENGTH || len == CHINA_ID_MAX_LENGTH) {
            sProvinNum = idCard.substring(0, 2);
        }
        sProvince = cityCodes.get(sProvinNum);
        return sProvince;
    }

    /**
     * 数字验证
     * 
     * @param val
     * @return 提取的数字。
     */
    public static boolean isNum(String val) {
        return val == null || "".equals(val) ? false : val.matches("^[0-9]*$");
    }


/**
 * 验证小于当前日期 是否有效
 * 
 * @param iYear
 *            待验证日期(年)
 * @param iMonth
 *            待验证日期(月 1-12)
 * @param iDate
 *            待验证日期(日)
 * @return 是否有效
 */
public static boolean valiDate(int iYear, int iMonth, int iDate) {
    Calendar cal = Calendar.getInstance();
    int year = cal.get(Calendar.YEAR);
    int datePerMonth;
    if (iYear < MIN || iYear >= year) {
        return false;
    }
    if (iMonth < 1 || iMonth > 12) {
        return false;
    }
    switch (iMonth) {
    case 4:


  case 6:
        case 9:
        case 11:
            datePerMonth = 30;
            break;
        case 2:
            boolean dm = ((iYear % 4 == 0 && iYear % 100 != 0) || (iYear % 400 == 0))
                    && (iYear > MIN && iYear < year);
            datePerMonth = dm ? 29 : 28;
            break;
        default:
            datePerMonth = 31;
        }
        return (iDate >= 1) && (iDate <= datePerMonth);
    }
}