JAVA常用验证方法

public class ValidateUtil {
    //用户名密码 字符串 A-Z，a-z，0-9
    private static final String userStr = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz_";
    private static final String numberStr = "0123456789";

    /**
     * 是否不符合登陆字符串
     *
     * @param str
     * @return 有不符合
     */
    public static boolean isUserErrStr(String str) {
        if (isNull(str)) return false;
        str = str.trim();
        char[] tempChar = str.toCharArray();
        for (int kk = 0; kk < tempChar.length; kk++) {
            if (userStr.indexOf(tempChar[kk]) == -1)
                return true;
        }
        return false;
    }

    /**
     * Null和空验证
     *
     * @param str
     * @return
     */
    public static boolean isNull(String str) {
        if (str == null) str = "";
        str = str.trim();
        if (str.equals(""))
            return true;
        else
            return false;
    }

    /**
     * 是否由数字组成
     *
     * @param str
     * @return
     */
    public static boolean isNumber(String str) {
        if (isNull(str)) return false;
        str = str.trim();
        char[] tempChar = str.toCharArray();
        for (int kk = 0; kk < tempChar.length; kk++) {
            if (numberStr.indexOf(tempChar[kk]) == -1)
                return false;
        }
        return true;
    }

    /**
     * 长度判断
     *
     * @param str
     * @param stt
     * @param end
     * @return
     */
    public static boolean isLength(String str, int stt, int end) {
        if (isNull(str)) return false;
        str = str.trim();
        if (str.length() >= stt && str.length() <= end)
            return true;
        else
            return false;
    }

    /**
     * 验证手机号码是否合法
     *
     * @param phoneNumber
     * @return
     */
    public static boolean validateMovePhone(String phoneNumber) {
        //如果号码为空或是长度不为11，返回false;
        if (phoneNumber == null || phoneNumber.trim().length() != 11) return false;
        try {
            long l = Long.parseLong(phoneNumber) / 100000000;
            if (l >= 130 && l < 140) return true;
        } catch (Exception e) {
        }
        return false;
    }

    public static boolean isPhone(String number) {
        return true;
    }

    /**
     * 验证邮件地址合法性
     *
     * @param emailAddr
     * @return
     */
    public static boolean validateEmail(String emailAddr) {
        if (emailAddr == null || emailAddr.trim().indexOf("@") == -1) return false;
        if (emailAddr.lastIndexOf(".") < emailAddr.indexOf("@")) return false;
        return true;
    }

    /**
     * 验证身份证号码合法性
     *
     * @param sfzNumber
     * @return
     */
    public static boolean validateSfz(String sfzNumber) {
        return SfzValidate.Verify(sfzNumber);
    }

    /**
     * 取得身份证信息
     *
     * @param s
     * @return
     */
    public static String[] getSfzInfo(String s) {
        return SfzValidate.getSfzInfo(s);
    }

    /**
     * 身份证号15位升成18位
     *
     * @param fifteencardid
     * @return
     */
    public static String UpTo18(String fifteencardid) {
        return SfzValidate.uptoeighteen(fifteencardid);
    }

    /**
     * 测试
     *
     * @param arg
     */
    public static void main(String[] arg) {
        String s = "51040319770907131X";
        System.out.println(validateSfz(s));
    }

    /**
     * 身份证验证内隐类
     */
    private static class SfzValidate {
        // wi =2(n-1)(mod 11)
        static final int[] wi = {7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1};

        // verify digit
        static final int[] vi = {1, 0, 'X', 9, 8, 7, 6, 5, 4, 3, 2};

        private static int[] ai = new int[18];

        //verify
        public static boolean Verify(String idcard) {
            if (idcard == null) return false;
            if (idcard.length() == 15) {
                idcard = uptoeighteen(idcard);
            }
            if (idcard.length() != 18) {
                return false;
            }
            String verify = idcard.substring(17, 18);
            if (verify.equals(getVerify(idcard))) {
                return true;
            }
            return false;
        }

        //get verify
        public static String getVerify(String eightcardid) {
            int remaining = 0;
            if (eightcardid.length() == 18) {
                eightcardid = eightcardid.substring(0, 17);
            }
            if (eightcardid.length() == 17) {
                int sum = 0;
                for (int i = 0; i < 17; i++) {
                    String k = eightcardid.substring(i, i + 1);
                    ai[i] = Integer.parseInt(k);
                }
                for (int i = 0; i < 17; i++) {
                    sum = sum + wi[i] * ai[i];
                }
                remaining = sum % 11;
            }
            return remaining == 2 ? "X" : String.valueOf(vi[remaining]);
        }

        /**
         * 15 update to 18
         */

        public static String uptoeighteen(String fifteencardid) {
            if (fifteencardid == null || fifteencardid.length() != 15) return fifteencardid;
            String eightcardid = fifteencardid.substring(0, 6);
            eightcardid = eightcardid + "19";
            eightcardid = eightcardid + fifteencardid.substring(6, 15);
            eightcardid = eightcardid + getVerify(eightcardid);
            return eightcardid;
        }

        /**
         * 取得身份证信息
         *
         * @param s
         * @return
         */
        public static String[] getSfzInfo(String s) {
            if (s.length() == 15) s = uptoeighteen(s);
            if (Verify(s)) {
                String[] sl = new String[3];
                sl[0] = s.substring(0, 6);//发证单位号码
                sl[1] = s.substring(6, 10) + "年" + s.substring(10, 12) + "月" + s.substring(12, 14) + "日";//出身年月
                sl[2] = Integer.parseInt(s.substring(16, 17)) % 2 == 1 ? "男" : "女"; //性别
                return sl;
            } else {
                return null;
            }
        }

    }
}