软工 任务2

  1 package CheckCard;
  2 import java.util.Calendar;
  3 import java.util.HashMap;
  4 import java.util.Map;
  5 import javax.xml.bind.Validator;
  6 
  7 public class CheckCard {
  8   final static Map<Integer, String> zoneNum = new HashMap<Integer, String>();
  9   static {
 10     zoneNum.put(11, "北京");
 11     zoneNum.put(12, "天津");
 12     zoneNum.put(13, "河北");
 13     zoneNum.put(14, "山西");
 14     zoneNum.put(15, "内蒙古");
 15     zoneNum.put(21, "辽宁");
 16     zoneNum.put(22, "吉林");
 17     zoneNum.put(23, "黑龙江");
 18     zoneNum.put(31, "上海");
 19     zoneNum.put(32, "江苏");
 20     zoneNum.put(33, "浙江");
 21     zoneNum.put(34, "安徽");
 22     zoneNum.put(35, "福建");
 23     zoneNum.put(36, "江西");
 24     zoneNum.put(37, "山东");
 25     zoneNum.put(41, "河南");
 26     zoneNum.put(42, "湖北");
 27     zoneNum.put(43, "湖南");
 28     zoneNum.put(44, "广东");
 29     zoneNum.put(45, "广西");
 30     zoneNum.put(46, "海南");
 31     zoneNum.put(50, "重庆");
 32     zoneNum.put(51, "四川");
 33     zoneNum.put(52, "贵州");
 34     zoneNum.put(53, "云南");
 35     zoneNum.put(54, "西藏");
 36     zoneNum.put(61, "陕西");
 37     zoneNum.put(62, "甘肃");
 38     zoneNum.put(63, "青海");
 39     zoneNum.put(64, "新疆");
 40     zoneNum.put(71, "台湾");
 41     zoneNum.put(81, "香港");
 42     zoneNum.put(82, "澳门");
 43     zoneNum.put(91, "外国");
 44   }
 45   final static int[] PARITYBIT = {‘1‘, ‘0‘, ‘X‘, ‘9‘, ‘8‘, ‘7‘, ‘6‘, ‘5‘, ‘4‘, ‘3‘, ‘2‘};
 46   final static int[] POWER_LIST = { 7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10,
 47     5, 8, 4, 2};
 48   /**
 49    *
 50    * 身份证验证
 51    *
 52    *@param s
 53    *   号码内容
 54    *@return 是否有效 null和"" 都是false
 55    */
 56   public static boolean isIdcard(String s){
 57     if(s == null || (s.length() != 15 && s.length() != 18))
 58       return false;
 59     final char[] cs = s.toUpperCase().toCharArray();
 60     //校验位数
 61     int power = 0;
 62     for(int i=0; i<cs.length; i++){
 63       if(i==cs.length-1 && cs[i] == ‘X‘)
 64         break;//最后一位可以 是X或x
 65       if(cs[i]<‘0‘ || cs[i]>‘9‘)
 66         return false;
 67       if(i < cs.length -1){
 68         power += (cs[i] - ‘0‘) * POWER_LIST[i];
 69       }
 70     }
 71     //校验区位码
 72     if(!zoneNum.containsKey(Integer.valueOf(s.substring(0,2)))){
 73       return false;
 74     }
 75     //校验年份
 76     String year = s.length() == 15 ? "19" + s.substring(6,8) :s
 77         .substring(6, 10);
 78     final int iyear = Integer.parseInt(year);
 79     if(iyear < 1900 || iyear > Calendar.getInstance().get(Calendar.YEAR))
 80       return false;//1900年的PASS，超过今年的PASS
 81     //校验月份
 82     String month = s.length() == 15 ? s.substring(8, 10) : s.substring(10,12);
 83     final int imonth = Integer.parseInt(month);
 84     if(imonth <1 || imonth >12){
 85       return false;
 86     }
 87     //校验天数
 88     String day = s.length() ==15 ? s.substring(10, 12) : s.substring(12, 14);
 89     final int iday = Integer.parseInt(day);
 90     if(iday < 1 || iday > 31)
 91       return false;
 92     //校验一个合法的年月日
 93     if(!validate(iyear, imonth, iday))
 94       return false;
 95     //校验"校验码"
 96     if(s.length() == 15)
 97       return true;
 98     return cs[cs.length -1 ] == PARITYBIT[power % 11];
 99   }
100   static boolean validate(int year, int imonth, int iday){
101     //比如考虑闰月，大小月等
102     return true;
103   }
104   public static void main(String[] args) {
105     for(int i=0;i<10;i++){
106       final String s = "330482199607070616";
107       System.out.println(s+" --> "+isIdcard(s));
108     }
109   }
110 }