校验身份证

java校验身份证

/**
 * 判断身份证省份
 */
private static 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 static int power[] = {7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2};

/**
 * 验证所有的身份证的合法性
 *
 * @param idcard 身份证
 * @return 合法返回true，否则返回false
 */
public static boolean isValidatedAllIdcard(String idcard) {
    if (idcard == null || "".equals(idcard)) {
        return false;
    }
    int s = 15;
    if (idcard.length() == s) {
        return validate15IDCard(idcard);
    }
    int s1 = 18;
    if (idcard.length() == s1) {
        return validate18Idcard(idcard);
    }
    return false;


}

public static boolean validate18Idcard(String idcard) {
    if (idcard == null) {
        return false;
    }

    // 非18位为假
    int s=18;
    if (idcard.length() != s) {
        logger.error("身份证位数不正确!");
        return false;
    }
    // 获取前17位
    String idcard17 = idcard.substring(0, 17);

    // 前17位全部为数字
    if (!isDigital(idcard17)) {
        return false;
    }

    String provinceid = idcard.substring(0, 2);
    // 校验省份
    if (!checkProvinceid(provinceid)) {
        return false;
    }

    // 校验出生日期
    String birthday = idcard.substring(6, 14);

    SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");

    try {
        Date birthDate = sdf.parse(birthday);
        String tmpDate = sdf.format(birthDate);
        // 出生年月日不正确
        if (!tmpDate.equals(birthday)) {
            return false;
        }

    } catch (Exception e1) {

        return false;
    }

    // 获取第18位
    String idcard18Code = idcard.substring(17, 18);

    char c[] = idcard17.toCharArray();

    int 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
    String 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;
    }
    //System.out.println("正确");
    return true;
}


/**
 * 校验15位身份证
 *
 * <pre>
 * 只校验省份和出生年月日
 * </pre>
 *
 * @param idcard
 * @return
 */
public static boolean validate15IDCard(String idcard) {
    if (idcard == null) {
        return false;
    }
    // 非15位为假
    int s=15;
    if (idcard.length() != s) {
        return false;
    }

    // 15全部为数字
    if (!isDigital(idcard)) {
        return false;
    }

    String provinceid = idcard.substring(0, 2);
    // 校验省份
    if (!checkProvinceid(provinceid)) {
        return false;
    }

    String birthday = idcard.substring(6, 12);

    SimpleDateFormat sdf = new SimpleDateFormat("yyMMdd");

    try {
        Date birthDate = sdf.parse(birthday);
        String tmpDate = sdf.format(birthDate);
        // 身份证日期错误
        if (!tmpDate.equals(birthday)) {
            return false;
        }

    } catch (Exception e1) {

        return false;
    }

    return true;
}

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

    // 非15位身份证
    int s=15;
    if (idcard.length() != s) {
        return null;
    }

    // 15全部为数字
    if (!isDigital(idcard)) {
        return null;
    }

    String provinceid = idcard.substring(0, 2);
    // 校验省份
    if (!checkProvinceid(provinceid)) {
        return null;
    }

    String birthday = idcard.substring(6, 12);

    SimpleDateFormat sdf = new SimpleDateFormat("yyMMdd");

    Date birthdate = null;
    try {
        birthdate = sdf.parse(birthday);
        String tmpDate = sdf.format(birthdate);
        // 身份证日期错误
        if (!tmpDate.equals(birthday)) {
            return null;
        }

    } catch (Exception e1) {
        return null;
    }

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

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

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

    // 将字符数组转为整型数组
    int 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;
    return idcard17;
}

/**
 * 校验省份
 *
 * @param provinceid
 * @return 合法返回TRUE，否则返回FALSE
 */
private static boolean checkProvinceid(String provinceid) {
    for (String id : cityCode) {
        if (id.equals(provinceid)) {
            return true;
        }
    }
    return false;
}

/**
 * 数字验证
 *
 * @param str
 * @return
 */
private static boolean isDigital(String str) {
    return 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
 */
private static 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 sum17
 * @return 校验位
 */
private static 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;
        default:
    }
    return checkCode;
}

/**
 * 将字符数组转为整型数组
 *
 * @param c
 * @return
 * @throws NumberFormatException
 */
private static 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;
}


public static void main(String[] args) throws Exception {
    String idcard15 = "130321860311519";
    String idcard18 = "210102198617083732";//
   // String idcard = "37";
    //自己身份证测试
   // System.out.println(isValidatedAllIdcard(idcard));
    // 15位身份证
    //System.out.println(isValidatedAllIdcard(idcard15));
    // 18位身份证
    //System.out.println(isValidatedAllIdcard(idcard18));
    // 15位身份证转18位身份证
    //System.out.println(convertIdcarBy15bit(idcard15));
    System.err.println(UUID.randomUUID().toString().replace("-",""));


}


js 校验

//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;
//验证身份证格式（6个地区编码，8位出生日期，3位顺序号，1位校验位）
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;
}