身份证号码校验

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import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.regex.Pattern;

public class IdcardValidator1 {


    public static void main(String[] args) throws Exception {  

        String idcard15 = "142431199001145";//15位  
        String idcard18 = "121212121212121212";//18位  
        IdcardValidator1 iv = new IdcardValidator1();  
        System.out.println(iv.isValidatedAllIdcard(idcard15));  
        System.out.println(iv.isValidatedAllIdcard(idcard18));  
        IdcardInfoExtractor ie = new IdcardInfoExtractor(idcard18);  
        System.out.println(ie.toString()); 
    } 


    /** 
     * 省,直辖市代码表: { 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"} 
     */  
    protected String codeAndCity[][] = { { "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" } };  

    private 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  
    private 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  
    private String verifyCode[] = { "1", "0", "X", "9", "8", "7", "6", "5",  
            "4", "3", "2" };  

    /** 
     * 验证所有的身份证的合法性 
     *  
     * @param idcard 
     * @return 
     */  
    public boolean isValidatedAllIdcard(String idcard) {  
        if (idcard.length() == 15) {  
            idcard = this.convertIdcarBy15bit(idcard);  
        }  
        return this.isValidate18Idcard(idcard);  
    }  

    /** 
     * <p> 
     * 判断18位身份证的合法性 
     * </p> 
     * 根据〖中华人民共和国国家标准GB11643-1999〗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。 
     * <p> 
     * 顺序码: 表示在同一地址码所标识的区域范围内,对同年、同月、同 日出生的人编定的顺序号,顺序码的奇数分配给男性,偶数分配 给女性。 
     * </p> 
     * <p> 
     * 1.前1、2位数字表示:所在省份的代码; 2.第3、4位数字表示:所在城市的代码; 3.第5、6位数字表示:所在区县的代码; 
     * 4.第7~14位数字表示:出生年、月、日; 5.第15、16位数字表示:所在地的派出所的代码; 
     * 6.第17位数字表示性别:奇数表示男性,偶数表示女性; 
     * 7.第18位数字是校检码:也有的说是个人信息码,一般是随计算机的随机产生,用来检验身份证的正确性。校检码可以是0~9的数字,有时也用x表示。 
     * </p> 
     * <p> 
     * 第十八位数字(校验码)的计算方法为: 1.将前面的身份证号码17位数分别乘以不同的系数。从第一位到第十七位的系数分别为:7 9 10 5 8 4 
     * 2 1 6 3 7 9 10 5 8 4 2 
     * </p> 
     * <p> 
     * 2.将这17位数字和系数相乘的结果相加。 
     * </p> 
     * <p> 
     * 3.用加出来和除以11,看余数是多少? 
     * </p> 
     * 4.余数只可能有0 1 2 3 4 5 6 7 8 9 10这11个数字。其分别对应的最后一位身份证的号码为1 0 X 9 8 7 6 5 4 3 
     * 2。 
     * <p> 
     * 5.通过上面得知如果余数是2,就会在身份证的第18位数字上出现罗马数字的Ⅹ。如果余数是10,身份证的最后一位号码就是2。 
     * </p> 
     *  
     * @param idcard 
     * @return 
     */  
    public boolean isValidate18Idcard(String idcard) {  
        // 非18位为假  
        if (idcard.length() != 18) {  
            return false;  
        }  
        // 获取前17位  
        String idcard17 = idcard.substring(0, 17);  
        // 获取第18位  
        String idcard18Code = idcard.substring(17, 18);  
        char c[] = null;  
        String checkCode = "";  
        // 是否都为数字  
        if (isDigital(idcard17)) {  
            c = idcard17.toCharArray();  
        } else {  
            return false;  
        }  

        if (null != c) {  
            int bit[] = new int[idcard17.length()];  

            bit = converCharToInt(c);  

            int sum17 = 0;  

            sum17 = getPowerSum(bit);  

            // 将和值与11取模得到余数进行校验码判断  
            checkCode = getCheckCodeBySum(sum17);  
            if (null == checkCode) {  
                return false;  
            }  
            // 将身份证的第18位与算出来的校码进行匹配,不相等就为假  
            if (!idcard18Code.equalsIgnoreCase(checkCode)) {  
                return false;  
            }  
        }  
        return true;  
    }  

    /** 
     * 验证15位身份证的合法性,该方法验证不准确,最好是将15转为18位后再判断,该类中已提供。 
     *  
     * @param idcard 
     * @return 
     */  
    public boolean isValidate15Idcard(String idcard) {  
        // 非15位为假  
        if (idcard.length() != 15) {  
            return false;  
        }  

        // 是否全都为数字  
        if (isDigital(idcard)) {  
            String provinceid = idcard.substring(0, 2);  
            String birthday = idcard.substring(6, 12);  
            int year = Integer.parseInt(idcard.substring(6, 8));  
            int month = Integer.parseInt(idcard.substring(8, 10));  
            int day = Integer.parseInt(idcard.substring(10, 12));  

            // 判断是否为合法的省份  
            boolean flag = false;  
            for (String id : cityCode) {  
                if (id.equals(provinceid)) {  
                    flag = true;  
                    break;  
                }  
            }  
            if (!flag) {  
                return false;  
            }  
            // 该身份证生出日期在当前日期之后时为假  
            Date birthdate = null;  
            try {  
                birthdate = new SimpleDateFormat("yyMMdd").parse(birthday);  
            } catch (ParseException e) {  
                e.printStackTrace();  
            }  
            if (birthdate == null || new Date().before(birthdate)) {  
                return false;  
            }  

            // 判断是否为合法的年份  
            GregorianCalendar curDay = new GregorianCalendar();  
            int curYear = curDay.get(Calendar.YEAR);  
            int year2bit = Integer.parseInt(String.valueOf(curYear)  
                    .substring(2));  

            // 判断该年份的两位表示法,小于50的和大于当前年份的,为假  
            if ((year < 50 && year > year2bit)) {  
                return false;  
            }  

            // 判断是否为合法的月份  
            if (month < 1 || month > 12) {  
                return false;  
            }  

            // 判断是否为合法的日期  
            boolean mflag = false;  
            curDay.setTime(birthdate); // 将该身份证的出生日期赋于对象curDay  
            switch (month) {  
            case 1:  
            case 3:  
            case 5:  
            case 7:  
            case 8:  
            case 10:  
            case 12:  
                mflag = (day >= 1 && day <= 31);  
                break;  
            case 2: // 公历的2月非闰年有28天,闰年的2月是29天。  
                if (curDay.isLeapYear(curDay.get(Calendar.YEAR))) {  
                    mflag = (day >= 1 && day <= 29);  
                } else {  
                    mflag = (day >= 1 && day <= 28);  
                }  
                break;  
            case 4:  
            case 6:  
            case 9:  
            case 11:  
                mflag = (day >= 1 && day <= 30);  
                break;  
            }  
            if (!mflag) {  
                return false;  
            }  
        } else {  
            return false;  
        }  
        return true;  
    }  

    /** 
     * 将15位的身份证转成18位身份证 
     *  
     * @param idcard 
     * @return 
     */  
    public String convertIdcarBy15bit(String idcard) {  
        String idcard17 = null;  
        // 非15位身份证  
        if (idcard.length() != 15) {  
            return null;  
        }  

        if (isDigital(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 cday = Calendar.getInstance();  
            cday.setTime(birthdate);  
            String year = String.valueOf(cday.get(Calendar.YEAR));  

            idcard17 = idcard.substring(0, 6) + year + idcard.substring(8);  

            char c[] = idcard17.toCharArray();  
            String checkCode = "";  

            if (null != c) {  
                int bit[] = new int[idcard17.length()];  

                // 将字符数组转为整型数组  
                bit = converCharToInt(c);  
                int sum17 = 0;  
                sum17 = getPowerSum(bit);  

                // 获取和值与11取模得到余数进行校验码  
                checkCode = getCheckCodeBySum(sum17);  
                // 获取不到校验位  
                if (null == checkCode) {  
                    return null;  
                }  

                // 将前17位与第18位校验码拼接  
                idcard17 += checkCode;  
            }  
        } else { // 身份证包含数字  
            return null;  
        }  
        return idcard17;  
    }  

    /** 
     * 15位和18位身份证号码的基本数字和位数验校 
     *  
     * @param idcard 
     * @return 
     */  
    public boolean isIdcard(String idcard) {  
        return idcard == null || "".equals(idcard) ? false : Pattern.matches(  
                "(^\\d{15}$)|(\\d{17}(?:\\d|x|X)$)", idcard);  
    }  

    /** 
     * 15位身份证号码的基本数字和位数验校 
     *  
     * @param idcard 
     * @return 
     */  
    public boolean is15Idcard(String idcard) {  
        return idcard == null || "".equals(idcard) ? false : Pattern.matches(  
                "^[1-9]\\d{7}((0\\d)|(1[0-2]))(([0|1|2]\\d)|3[0-1])\\d{3}$",  
                idcard);  
    }  

    /** 
     * 18位身份证号码的基本数字和位数验校 
     *  
     * @param idcard 
     * @return 
     */  
    public boolean is18Idcard(String idcard) {  
        return Pattern  
                .matches(  
                        "^[1-9]\\d{5}[1-9]\\d{3}((0\\d)|(1[0-2]))(([0|1|2]\\d)|3[0-1])\\d{3}([\\d|x|X]{1})$",  
                        idcard);  
    }  

    /** 
     * 数字验证 
     *  
     * @param str 
     * @return 
     */  
    public boolean isDigital(String str) {  
        return str == null || "".equals(str) ? false : str.matches("^[0-9]*$");  
    }  

    /** 
     * 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 bit 
     * @return 
     */  
    public int getPowerSum(int[] bit) {  

        int sum = 0;  

        if (power.length != bit.length) {  
            return sum;  
        }  

        for (int i = 0; i < bit.length; i++) {  
            for (int j = 0; j < power.length; j++) {  
                if (i == j) {  
                    sum = sum + bit[i] * power[j];  
                }  
            }  
        }  
        return sum;  
    }  

    /** 
     * 将和值与11取模得到余数进行校验码判断 
     *  
     * @param checkCode 
     * @param sum17 
     * @return 校验位 
     */  
    public String getCheckCodeBySum(int sum17) {  
        String checkCode = null;  
        switch (sum17 % 11) {  
        case 10:  
            checkCode = "2";  
            break;  
        case 9:  
            checkCode = "3";  
            break;  
        case 8:  
            checkCode = "4";  
            break;  
        case 7:  
            checkCode = "5";  
            break;  
        case 6:  
            checkCode = "6";  
            break;  
        case 5:  
            checkCode = "7";  
            break;  
        case 4:  
            checkCode = "8";  
            break;  
        case 3:  
            checkCode = "9";  
            break;  
        case 2:  
            checkCode = "x";  
            break;  
        case 1:  
            checkCode = "0";  
            break;  
        case 0:  
            checkCode = "1";  
            break;  
        }  
        return checkCode;  
    }  

    /** 
     * 将字符数组转为整型数组 
     *  
     * @param c 
     * @return 
     * @throws NumberFormatException 
     */  
    public int[] converCharToInt(char[] c) throws NumberFormatException {  
        int[] a = new int[c.length];  
        int k = 0;  
        for (char temp : c) {  
            a[k++] = Integer.parseInt(String.valueOf(temp));  
        }  
        return a;  
    }  

}


import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;

public class IdcardInfoExtractor {


    public static void main(String[] args) {  
        String idcard = "342221199406205511";  
        IdcardInfoExtractor ie = new IdcardInfoExtractor(idcard);  
        System.out.println(ie.toString());  
    } 


    // 省份  
    private String province;  
    // 城市  
    private String city;  
    // 区县  
    private String region;  
    // 年份  
    private int year;  
    // 月份  
    private int month;  
    // 日期  
    private int day;  
    // 性别   1男 2女
    private int gender;  
    // 出生日期  
    private Date birthday;  

    private Map<String, String> cityCodeMap = new HashMap<String, String>() {  
        {  
            this.put("11", "北京");  
            this.put("12", "天津");  
            this.put("13", "河北");  
            this.put("14", "山西");  
            this.put("15", "内蒙古");  
            this.put("21", "辽宁");  
            this.put("22", "吉林");  
            this.put("23", "黑龙江");  
            this.put("31", "上海");  
            this.put("32", "江苏");  
            this.put("33", "浙江");  
            this.put("34", "安徽");  
            this.put("35", "福建");  
            this.put("36", "江西");  
            this.put("37", "山东");  
            this.put("41", "河南");  
            this.put("42", "湖北");  
            this.put("43", "湖南");  
            this.put("44", "广东");  
            this.put("45", "广西");  
            this.put("46", "海南");  
            this.put("50", "重庆");  
            this.put("51", "四川");  
            this.put("52", "贵州");  
            this.put("53", "云南");  
            this.put("54", "西藏");  
            this.put("61", "陕西");  
            this.put("62", "甘肃");  
            this.put("63", "青海");  
            this.put("64", "宁夏");  
            this.put("65", "新疆");  
            this.put("71", "台湾");  
            this.put("81", "香港");  
            this.put("82", "澳门");  
            this.put("91", "国外");  
        }  
    };  

    private IdcardValidator1 validator = null;  

    /** 
     * 通过构造方法初始化各个成员属性 
     */  
    public IdcardInfoExtractor(String idcard) {  
        try {  
            validator = new IdcardValidator1();  
            if (validator.isValidatedAllIdcard(idcard)) {  
                if (idcard.length() == 15) {  
                    idcard = validator.convertIdcarBy15bit(idcard);  
                }  
                // 获取省份  
                String provinceId = idcard.substring(0, 2);  
                Set<String> key = this.cityCodeMap.keySet();  
                for (String id : key) {  
                    if (id.equals(provinceId)) {  
                        this.province = this.cityCodeMap.get(id);  
                        break;  
                    }  
                }  

                // 获取性别  
                String id17 = idcard.substring(16, 17);  
                if (Integer.parseInt(id17) % 2 != 0) {  
                    this.gender = 1;  //男
                } else {  
                    this.gender = 2;  //女
                }  

                // 获取出生日期  
                String birthday = idcard.substring(6, 14);  
                Date birthdate = new SimpleDateFormat("yyyyMMdd")  
                        .parse(birthday);  
                this.birthday = birthdate;  
                GregorianCalendar currentDay = new GregorianCalendar();  
                currentDay.setTime(birthdate);  
                this.year = currentDay.get(Calendar.YEAR);  
                this.month = currentDay.get(Calendar.MONTH) + 1;  
                this.day = currentDay.get(Calendar.DAY_OF_MONTH);  
            }  
        } catch (Exception e) {  
            e.printStackTrace();  
        }  
    }  

    /** 
     * @return the province 
     */  
    public String getProvince() {  
        return province;  
    }  

    /** 
     * @return the city 
     */  
    public String getCity() {  
        return city;  
    }  

    /** 
     * @return the region 
     */  
    public String getRegion() {  
        return region;  
    }  

    /** 
     * @return the year 
     */  
    public int getYear() {  
        return year;  
    }  

    /** 
     * @return the month 
     */  
    public int getMonth() {  
        return month;  
    }  

    /** 
     * @return the day 
     */  
    public int getDay() {  
        return day;  
    }  

    /** 
     * @return the gender 
     */  
    public int getGender() {  
        return gender;  
    }  

    /** 
     * @return the birthday 
     */  
    public Date getBirthday() {  
        return birthday;  
    }  

    @Override  
    public String toString() {  
        return "省份:" + this.province + ",性别:" + this.gender + ",出生日期:"  
                + this.birthday;  
    }  
}

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转载自blog.csdn.net/waa_0618/article/details/80711348