判斷是第幾代身份證(第一代15位, 第二代18位)
1 if (cardId.length() == 15 || cardId.length() == 18) { 2 if (!this.cardCodeVerifySimple(cardId)) { 3 error.put("cardId", "15位或18位身份證號碼不正確"); 4 } else { 5 if (cardId.length() == 18 && !this.cardCodeVerify(cardId)) { 6 error.put("cardId", "18位身份證號碼不符合國家規范"); 7 } 8 } 9 } else { 10 error.put("cardId", "身份證號碼長度必須等於15或18位"); 11 }
正則校驗身份證是否符合第一代第二代標准
1 private boolean cardCodeVerifySimple(String cardcode) { 2 //第一代身份證正則表達式(15位)
3 String isIDCard1 = "^[1-9]\\d{7}((0\\d)|(1[0-2]))(([0|1|2]\\d)|3[0-1])\\d{3}$"; 4 //第二代身份證正則表達式(18位)
5 String isIDCard2 ="^[1-9]\\d{5}[1-9]\\d{3}((0\\d)|(1[0-2]))(([0|1|2]\\d)|3[0-1])((\\d{4})|\\d{3}[A-Z])$"; 6
7 //驗證身份證
8 if (cardcode.matches(isIDCard1) || cardcode.matches(isIDCard2)) { 9 return true; 10 } 11 return false; 12 }
驗證第二代身份證是否符合國家規范
1 private boolean cardCodeVerify(String cardcode) { 2 int i = 0; 3 String r = "error"; 4 String lastnumber = ""; 5
6 i += Integer.parseInt(cardcode.substring(0, 1)) * 7; 7 i += Integer.parseInt(cardcode.substring(1, 2)) * 9; 8 i += Integer.parseInt(cardcode.substring(2, 3)) * 10; 9 i += Integer.parseInt(cardcode.substring(3, 4)) * 5; 10 i += Integer.parseInt(cardcode.substring(4, 5)) * 8; 11 i += Integer.parseInt(cardcode.substring(5, 6)) * 4; 12 i += Integer.parseInt(cardcode.substring(6, 7)) * 2; 13 i += Integer.parseInt(cardcode.substring(7, 8)) * 1; 14 i += Integer.parseInt(cardcode.substring(8, 9)) * 6; 15 i += Integer.parseInt(cardcode.substring(9, 10)) * 3; 16 i += Integer.parseInt(cardcode.substring(10,11)) * 7; 17 i += Integer.parseInt(cardcode.substring(11,12)) * 9; 18 i += Integer.parseInt(cardcode.substring(12,13)) * 10; 19 i += Integer.parseInt(cardcode.substring(13,14)) * 5; 20 i += Integer.parseInt(cardcode.substring(14,15)) * 8; 21 i += Integer.parseInt(cardcode.substring(15,16)) * 4; 22 i += Integer.parseInt(cardcode.substring(16,17)) * 2; 23 i = i % 11; 24 lastnumber =cardcode.substring(17,18); 25 if (i == 0) { 26 r = "1"; 27 } 28 if (i == 1) { 29 r = "0"; 30 } 31 if (i == 2) { 32 r = "x"; 33 } 34 if (i == 3) { 35 r = "9"; 36 } 37 if (i == 4) { 38 r = "8"; 39 } 40 if (i == 5) { 41 r = "7"; 42 } 43 if (i == 6) { 44 r = "6"; 45 } 46 if (i == 7) { 47 r = "5"; 48 } 49 if (i == 8) { 50 r = "4"; 51 } 52 if (i == 9) { 53 r = "3"; 54 } 55 if (i == 10) { 56 r = "2"; 57 } 58 if (r.equals(lastnumber.toLowerCase())) { 59 return true; 60 } 61 return false; 62 }