校验身份证号码(转载)
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1 public class IDCardVerify { 2 3 private String errorInfo; 4 5 // wi =2(n-1)(mod 11) 6 final int[] wi = { 7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1 }; 7 // verify digit 8 final int[] vi = { 1, 0, 'X', 9, 8, 7, 6, 5, 4, 3, 2 }; 9 private int[] ai = new int[18]; 10 private static String[] _areaCode = { "11", "12", "13", "14", "15", "21", 11 "22", "23", "31", "32", "33", "34", "35", "36", "37", "41", "42", 12 "43", "44", "45", "46", "50", "51", "52", "53", "54", "61", "62", 13 "63", "64", "65", "71", "81", "82", "91" }; 14 private static HashMap<String, Integer> dateMap; 15 private static HashMap<String, String> areaCodeMap; 16 static { 17 dateMap = new HashMap<String, Integer>(); 18 dateMap.put("01", 31); 19 dateMap.put("02", null); 20 dateMap.put("03", 31); 21 dateMap.put("04", 30); 22 dateMap.put("05", 31); 23 dateMap.put("06", 30); 24 dateMap.put("07", 31); 25 dateMap.put("08", 31); 26 dateMap.put("09", 30); 27 dateMap.put("10", 31); 28 dateMap.put("11", 30); 29 dateMap.put("12", 31); 30 areaCodeMap = new HashMap<String, String>(); 31 for (String code : _areaCode) { 32 areaCodeMap.put(code, null); 33 } 34 } 35 36 // 验证身份证位数,15位和18位身份证 37 public boolean verifyLength(String code) { 38 int length = code.length(); 39 if (length == 15 || length == 18) { 40 return true; 41 } else { 42 errorInfo = "错误:输入的身份证号不是15位和18位的"; 43 return false; 44 } 45 } 46 47 // 判断地区码 48 public boolean verifyAreaCode(String code) { 49 String areaCode = code.substring(0, 2); 50 // Element child= _areaCodeElement.getChild("_"+areaCode); 51 if (areaCodeMap.containsKey(areaCode)) { 52 return true; 53 } else { 54 errorInfo = "错误:输入的身份证号的地区码(1-2位)[" + areaCode 55 + "]不符合中国行政区划分代码规定(GB/T2260-1999)"; 56 Log.e("---------", errorInfo); 57 return false; 58 } 59 } 60 61 // 判断月份和日期 62 public boolean verifyBirthdayCode(String code) { 63 // 验证月份 64 String month = code.substring(10, 12); 65 boolean isEighteenCode = (18 == code.length()); 66 if (!dateMap.containsKey(month)) { 67 errorInfo = "错误:输入的身份证号" 68 + (isEighteenCode ? "(11-12位)" : "(9-10位)") + "不存在[" 69 + month + "]月份,不符合要求(GB/T7408)"; 70 return false; 71 } 72 // 验证日期 73 String dayCode = code.substring(12, 14); 74 Integer day = dateMap.get(month); 75 String yearCode = code.substring(6, 10); 76 Integer year = Integer.valueOf(yearCode); 77 String currentTime = StringUtil.formateDateToDay(System 78 .currentTimeMillis()); 79 Integer currentYear = Integer.valueOf(currentTime.substring(0, 4)); 80 int age = currentYear - year; 81 // Log.e("----------", currentTime+";"+currentYear+";"+age+""); 82 if (age <= 16 || age >= 115) { 83 return false; 84 } 85 // 非2月的情况 86 if (day != null) { 87 if (Integer.valueOf(dayCode) > day || Integer.valueOf(dayCode) < 1) { 88 errorInfo = "错误:输入的身份证号" 89 + (isEighteenCode ? "(13-14位)" : "(11-13位)") + "[" 90 + dayCode + "]号不符合小月1-30天大月1-31天的规定(GB/T7408)"; 91 return false; 92 } 93 } 94 // 2月的情况 95 else { 96 // 闰月的情况 97 if ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0)) { 98 if (Integer.valueOf(dayCode) > 29 99 || Integer.valueOf(dayCode) < 1) { 100 errorInfo = "错误:输入的身份证号" 101 + (isEighteenCode ? "(13-14位)" : "(11-13位)") + "[" 102 + dayCode + "]号在" + year 103 + "闰年的情况下未符合1-29号的规定(GB/T7408)"; 104 return false; 105 } 106 } 107 // 非闰月的情况 108 else { 109 if (Integer.valueOf(dayCode) > 28 110 || Integer.valueOf(dayCode) < 1) { 111 errorInfo = "错误:输入的身份证号" 112 + (isEighteenCode ? "(13-14位)" : "(11-13位)") + "[" 113 + dayCode + "]号在" + year 114 + "平年的情况下未符合1-28号的规定(GB/T7408)"; 115 return false; 116 } 117 } 118 } 119 return true; 120 } 121 122 // 验证身份除了最后位其他的是否包含字母 123 public boolean containsAllNumber(String code) { 124 String str = ""; 125 if (code.length() == 15) { 126 str = code.substring(0, 15); 127 } else if (code.length() == 18) { 128 str = code.substring(0, 17); 129 } 130 char[] ch = str.toCharArray(); 131 for (int i = 0; i < ch.length; i++) { 132 if (!(ch[i] >= '0' && ch[i] <= '9')) { 133 errorInfo = "错误:输入的身份证号第" + (i + 1) + "位包含字母"; 134 return false; 135 } 136 } 137 return true; 138 } 139 140 public String getCodeError() { 141 return errorInfo; 142 } 143 144 // 验证身份证 145 public boolean verify(String idcard) { 146 errorInfo = ""; 147 // 验证身份证位数,15位和18位身份证 148 if (!verifyLength(idcard)) { 149 return false; 150 } 151 // 验证身份除了最后位其他的是否包含字母 152 if (!containsAllNumber(idcard)) { 153 return false; 154 } 155 156 // 如果是15位的就转成18位的身份证 157 String eifhteencard = ""; 158 if (idcard.length() == 15) { 159 eifhteencard = uptoeighteen(idcard); 160 } else { 161 eifhteencard = idcard; 162 } 163 // 验证身份证的地区码 164 if (!verifyAreaCode(eifhteencard)) { 165 return false; 166 } 167 // 判断月份和日期 168 if (!verifyBirthdayCode(eifhteencard)) { 169 return false; 170 } 171 // 验证18位校验码,校验码采用ISO 7064:1983,MOD 11-2 校验码系统 172 if (!verifyMOD(eifhteencard)) { 173 return false; 174 } 175 return true; 176 } 177 178 // 验证18位校验码,校验码采用ISO 7064:1983,MOD 11-2 校验码系统 179 public boolean verifyMOD(String code) { 180 String verify = code.substring(17, 18); 181 if ("x".equals(verify)) { 182 code = code.replaceAll("x", "X"); 183 verify = "X"; 184 } 185 String verifyIndex = getVerify(code); 186 if (verify.equals(verifyIndex)) { 187 return true; 188 } 189 // int x=17; 190 // if(code.length()==15){ 191 // x=14; 192 // } 193 errorInfo = "错误:输入的身份证号最末尾的数字验证码错误"; 194 return false; 195 } 196 197 // 获得校验位 198 public String getVerify(String eightcardid) { 199 int remaining = 0; 200 201 if (eightcardid.length() == 18) { 202 eightcardid = eightcardid.substring(0, 17); 203 } 204 205 if (eightcardid.length() == 17) { 206 int sum = 0; 207 for (int i = 0; i < 17; i++) { 208 String k = eightcardid.substring(i, i + 1); 209 ai[i] = Integer.parseInt(k); 210 } 211 212 for (int i = 0; i < 17; i++) { 213 sum = sum + wi[i] * ai[i]; 214 } 215 remaining = sum % 11; 216 } 217 218 return remaining == 2 ? "X" : String.valueOf(vi[remaining]); 219 } 220 221 // 15位转18位身份证 222 public String uptoeighteen(String fifteencardid) { 223 String eightcardid = fifteencardid.substring(0, 6); 224 eightcardid = eightcardid + "19"; 225 eightcardid = eightcardid + fifteencardid.substring(6, 15); 226 eightcardid = eightcardid + getVerify(eightcardid); 227 return eightcardid; 228 } 229 }