利用Java實(shí)現(xiàn)身份證號(hào)碼校驗(yàn)工具

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，直轄市代碼表： { 11:"北京",12:"天津",13:"河北",14:"山西",15:"內(nèi)蒙古", 
   * 21:"遼寧",22:"吉林",23:"黑龍江",31:"上海",32:"江蘇", 
   * 33:"浙江",34:"安徽",35:"福建",36:"江西",37:"山東",41:"河南", 
   * 42:"湖北",43:"湖南",44:"廣東",45:"廣西",46:"海南",50:"重慶", 
   * 51:"四川",52:"貴州",53:"云南",54:"西藏",61:"陜西",62:"甘肅", 
   * 63:"青海",64:"寧夏",65:"新疆",71:"臺(tái)灣",81:"香港",82:"澳門",91:"國(guó)外"} 
   */ 
  protected String codeAndCity[][] = { { "11", "北京" }, { "12", "天津" }, 
      { "13", "河北" }, { "14", "山西" }, { "15", "內(nèi)蒙古" }, { "21", "遼寧" }, 
      { "22", "吉林" }, { "23", "黑龍江" }, { "31", "上海" }, { "32", "江蘇" }, 
      { "33", "浙江" }, { "34", "安徽" }, { "35", "福建" }, { "36", "江西" }, 
      { "37", "山東" }, { "41", "河南" }, { "42", "湖北" }, { "43", "湖南" }, 
      { "44", "廣東" }, { "45", "廣西" }, { "46", "海南" }, { "50", "重慶" }, 
      { "51", "四川" }, { "52", "貴州" }, { "53", "云南" }, { "54", "西藏" }, 
      { "61", "陜西" }, { "62", "甘肅" }, { "63", "青海" }, { "64", "寧夏" }, 
      { "65", "新疆" }, { "71", "臺(tái)灣" }, { "81", "香港" }, { "82", "澳門" }, 
      { "91", "國(guó)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" }; 
 
  // 每位加權(quán)因子 
  private int power[] = { 7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2 }; 
 
  // 第18位校檢碼 
  private String verifyCode[] = { "1", "0", "X", "9", "8", "7", "6", "5", 
      "4", "3", "2" }; 
 
  /** 
   * 驗(yàn)證所有的身份證的合法性 
   * 
   * @param idcard 
   * @return 
   */ 
  public boolean isValidatedAllIdcard(String idcard) { 
    if (idcard.length() == 15) { 
      idcard = this.convertIdcarBy15bit(idcard); 
    } 
    return this.isValidate18Idcard(idcard); 
  } 
 
  /** 
   * <p> 
   * 判斷18位身份證的合法性 
   * </p> 
   * 根據(jù)〖中華人民共和國(guó)國(guó)家標(biāo)準(zhǔn)GB11643-1999〗中有關(guān)公民身份號(hào)碼的規(guī)定，公民身份號(hào)碼是特征組合碼，由十七位數(shù)字本體碼和一位數(shù)字校驗(yàn)碼組成。 
   * 排列順序從左至右依次為：六位數(shù)字地址碼，八位數(shù)字出生日期碼，三位數(shù)字順序碼和一位數(shù)字校驗(yàn)碼。 
   * <p> 
   * 順序碼: 表示在同一地址碼所標(biāo)識(shí)的區(qū)域范圍內(nèi)，對(duì)同年、同月、同 日出生的人編定的順序號(hào)，順序碼的奇數(shù)分配給男性，偶數(shù)分配 給女性。 
   * </p> 
   * <p> 
   * 1.前1、2位數(shù)字表示：所在省份的代碼； 2.第3、4位數(shù)字表示：所在城市的代碼； 3.第5、6位數(shù)字表示：所在區(qū)縣的代碼； 
   * 4.第7~14位數(shù)字表示：出生年、月、日； 5.第15、16位數(shù)字表示：所在地的派出所的代碼； 
   * 6.第17位數(shù)字表示性別：奇數(shù)表示男性，偶數(shù)表示女性； 
   * 7.第18位數(shù)字是校檢碼：也有的說(shuō)是個(gè)人信息碼，一般是隨計(jì)算機(jī)的隨機(jī)產(chǎn)生，用來(lái)檢驗(yàn)身份證的正確性。校檢碼可以是0~9的數(shù)字，有時(shí)也用x表示。 
   * </p> 
   * <p> 
   * 第十八位數(shù)字(校驗(yàn)碼)的計(jì)算方法為： 1.將前面的身份證號(hào)碼17位數(shù)分別乘以不同的系數(shù)。從第一位到第十七位的系數(shù)分別為：7 9 10 5 8 4 
   * 2 1 6 3 7 9 10 5 8 4 2 
   * </p> 
   * <p> 
   * 2.將這17位數(shù)字和系數(shù)相乘的結(jié)果相加。 
   * </p> 
   * <p> 
   * 3.用加出來(lái)和除以11，看余數(shù)是多少？ 
   * </p> 
   * 4.余數(shù)只可能有0 1 2 3 4 5 6 7 8 9 10這11個(gè)數(shù)字。其分別對(duì)應(yīng)的最后一位身份證的號(hào)碼為1 0 X 9 8 7 6 5 4 3 
   * 2。 
   * <p> 
   * 5.通過(guò)上面得知如果余數(shù)是2，就會(huì)在身份證的第18位數(shù)字上出現(xiàn)羅馬數(shù)字的Ⅹ。如果余數(shù)是10，身份證的最后一位號(hào)碼就是2。 
   * </p> 
   * 
   * @param idcard 
   * @return 
   */ 
  public boolean isValidate18Idcard(String idcard) { 
    // 非18位為假 
    if (idcard.length() != 18) { 
      return false; 
    } 
    // 獲取前17位 
    String idcard17 = idcard.substring(0, 17); 
    // 獲取第18位 
    String idcard18Code = idcard.substring(17, 18); 
    char c[] = null; 
    String checkCode = ""; 
    // 是否都為數(shù)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); 
 
      // 將和值與11取模得到余數(shù)進(jìn)行校驗(yàn)碼判斷 
      checkCode = getCheckCodeBySum(sum17); 
      if (null == checkCode) { 
        return false; 
      } 
      // 將身份證的第18位與算出來(lái)的校碼進(jìn)行匹配，不相等就為假 
      if (!idcard18Code.equalsIgnoreCase(checkCode)) { 
        return false; 
      } 
    } 
    return true; 
  } 
 
  /** 
   * 驗(yàn)證15位身份證的合法性,該方法驗(yàn)證不準(zhǔn)確，最好是將15轉(zhuǎn)為18位后再判斷，該類中已提供。 
   * 
   * @param idcard 
   * @return 
   */ 
  public boolean isValidate15Idcard(String idcard) { 
    // 非15位為假 
    if (idcard.length() != 15) { 
      return false; 
    } 
 
    // 是否全都為數(shù)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)); 
 
      // 判斷是否為合法的省份 
      boolean flag = false; 
      for (String id : cityCode) { 
        if (id.equals(provinceid)) { 
          flag = true; 
          break; 
        } 
      } 
      if (!flag) { 
        return false; 
      } 
      // 該身份證生出日期在當(dāng)前日期之后時(shí)為假 
      Date birthdate = null; 
      try { 
        birthdate = new SimpleDateFormat("yyMMdd").parse(birthday); 
      } catch (ParseException e) { 
        e.printStackTrace(); 
      } 
      if (birthdate == null || new Date().before(birthdate)) { 
        return false; 
      } 
 
      // 判斷是否為合法的年份 
      GregorianCalendar curDay = new GregorianCalendar(); 
      int curYear = curDay.get(Calendar.YEAR); 
      int year2bit = Integer.parseInt(String.valueOf(curYear) 
          .substring(2)); 
 
      // 判斷該年份的兩位表示法，小于50的和大于當(dāng)前年份的，為假 
      if ((year < 50 && year > year2bit)) { 
        return false; 
      } 
 
      // 判斷是否為合法的月份 
      if (month < 1 || month > 12) { 
        return false; 
      } 
 
      // 判斷是否為合法的日期 
      boolean mflag = false; 
      curDay.setTime(birthdate); // 將該身份證的出生日期賦于對(duì)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: // 公歷的2月非閏年有28天,閏年的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; 
  } 
 
  /** 
   * 將15位的身份證轉(zhuǎn)成18位身份證 
   * 
   * @param idcard 
   * @return 
   */ 
  public String convertIdcarBy15bit(String idcard) { 
    String idcard17 = null; 
    // 非15位身份證 
    if (idcard.length() != 15) { 
      return null; 
    } 
 
    if (isDigital(idcard)) { 
      // 獲取出生年月日 
      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()]; 
 
        // 將字符數(shù)組轉(zhuǎn)為整型數(shù)組 
        bit = converCharToInt(c); 
        int sum17 = 0; 
        sum17 = getPowerSum(bit); 
 
        // 獲取和值與11取模得到余數(shù)進(jìn)行校驗(yàn)碼 
        checkCode = getCheckCodeBySum(sum17); 
        // 獲取不到校驗(yàn)位 
        if (null == checkCode) { 
          return null; 
        } 
 
        // 將前17位與第18位校驗(yàn)碼拼接 
        idcard17 += checkCode; 
      } 
    } else { // 身份證包含數(shù)字 
      return null; 
    } 
    return idcard17; 
  } 
 
  /** 
   * 15位和18位身份證號(hào)碼的基本數(shù)字和位數(shù)驗(yàn)校 
   * 
   * @param idcard 
   * @return 
   */ 
  public boolean isIdcard(String idcard) { 
    return idcard == null || "".equals(idcard) &#63; false : Pattern.matches( 
        "(^\\d{15}$)|(\\d{17}(&#63;:\\d|x|X)$)", idcard); 
  } 
 
  /** 
   * 15位身份證號(hào)碼的基本數(shù)字和位數(shù)驗(yàn)校 
   * 
   * @param idcard 
   * @return 
   */ 
  public boolean is15Idcard(String idcard) { 
    return idcard == null || "".equals(idcard) &#63; false : Pattern.matches( 
        "^[1-9]\\d{7}((0\\d)|(1[0-2]))(([0|1|2]\\d)|3[0-1])\\d{3}$", 
        idcard); 
  } 
 
  /** 
   * 18位身份證號(hào)碼的基本數(shù)字和位數(shù)驗(yàn)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); 
  } 
 
  /** 
   * 數(shù)字驗(yàn)證 
   * 
   * @param str 
   * @return 
   */ 
  public boolean isDigital(String str) { 
    return str == null || "".equals(str) &#63; false : str.matches("^[0-9]*$"); 
  } 
 
  /** 
   * 將身份證的每位和對(duì)應(yīng)位的加權(quán)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; 
  } 
 
  /** 
   * 將和值與11取模得到余數(shù)進(jìn)行校驗(yàn)碼判斷 
   * 
   * @param checkCode 
   * @param sum17 
   * @return 校驗(yàn)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; 
  } 
 
  /** 
   * 將字符數(shù)組轉(zhuǎn)為整型數(shù)組 
   * 
   * @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; 
  // 區(qū)縣 
  private String region; 
  // 年份 
  private int year; 
  // 月份 
  private int month; 
  // 日期 
  private int day; 
  // 性別  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", "內(nèi)蒙古"); 
      this.put("21", "遼寧"); 
      this.put("22", "吉林"); 
      this.put("23", "黑龍江"); 
      this.put("31", "上海"); 
      this.put("32", "江蘇"); 
      this.put("33", "浙江"); 
      this.put("34", "安徽"); 
      this.put("35", "福建"); 
      this.put("36", "江西"); 
      this.put("37", "山東"); 
      this.put("41", "河南"); 
      this.put("42", "湖北"); 
      this.put("43", "湖南"); 
      this.put("44", "廣東"); 
      this.put("45", "廣西"); 
      this.put("46", "海南"); 
      this.put("50", "重慶"); 
      this.put("51", "四川"); 
      this.put("52", "貴州"); 
      this.put("53", "云南"); 
      this.put("54", "西藏"); 
      this.put("61", "陜西"); 
      this.put("62", "甘肅"); 
      this.put("63", "青海"); 
      this.put("64", "寧夏"); 
      this.put("65", "新疆"); 
      this.put("71", "臺(tái)灣"); 
      this.put("81", "香港"); 
      this.put("82", "澳門"); 
      this.put("91", "國(guó)外"); 
    } 
  }; 
 
  private IdcardValidator1 validator = null; 
 
  /** 
   * 通過(guò)構(gòu)造方法初始化各個(gè)成員屬性 
   */ 
  public IdcardInfoExtractor(String idcard) { 
    try { 
      validator = new IdcardValidator1(); 
      if (validator.isValidatedAllIdcard(idcard)) { 
        if (idcard.length() == 15) { 
          idcard = validator.convertIdcarBy15bit(idcard); 
        } 
        // 獲取省份 
        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; 
          } 
        } 
 
        // 獲取性別 
        String id17 = idcard.substring(16, 17); 
        if (Integer.parseInt(id17) % 2 != 0) { 
          this.gender = 1; //男
        } else { 
          this.gender = 2; //女
        } 
 
        // 獲取出生日期 
        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 + ",性別：" + this.gender + ",出生日期：" 
        + this.birthday; 
  } 
}