java对身份证验证及正则表达式解析

原文地址：http://www.cnblogs.com/zhongshengzhen/

java对身份证验证及正则表达式解析

package service;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.regex.Pattern;
import org.junit.Test;

public class TestRegex {
    public static boolean isChineseName(String realname){
         return Pattern.matches("[\u4e00-\u9fa5|·]{2,15}",realname);
    }
    public static boolean isCardId(String cardid){
         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})$", cardid);
    }
    public static String[] randomArray(int length){
        int index = 0;
        String temp = ",";
        for(int ii=0;ii<1000;ii++){
            for(int i=0;i<length;i++){
                index = (int) (Math.random()*10);
                temp += ( index + "");
            }
            temp +=",";
        }
        return temp.split(",");
    }
    //身份证前1位每位加权因子 
    private static int[] power = {7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2};
    //身份证第18位校检码
    private static String[] refNumber ={"1", "0", "X", "9", "8", "7", "6", "5", "4", "3"};
    //省(直辖市)代码表
    private String provinceCode[] = { "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" };
    /**
     * 检查身份证的省份信息是否正确（使用与18/15位身份证）
     * @param provinceid
     * @return
     */
    public boolean checkProvinceId(String provinceid){
        for (String id : provinceCode) {
            if (id.equals(provinceid)) {   
                return true; 
            }
        }   
        return false;
    }
    /**
     * 校验身份证第18位是否正确(只适合18位身份证)
     * @param cardId
     * @return
     */
    public static boolean checkCardIdLastNum(String cardId){
        if(cardId.length() != 18){
            return false;
        }
        char[] tmp = cardId.toCharArray();
        int[] cardidArray = new int[tmp.length-1];
        int i=0;
        for(i=0;i<tmp.length-1;i++){
            cardidArray[i] = Integer.parseInt(tmp[i]+"");
        }
        String checkCode = sumPower(cardidArray);
        String lastNum = tmp[tmp.length-1] + "";
        if(lastNum.equals("x")){
            lastNum = lastNum.toUpperCase();
        }
        if(!checkCode.equals(lastNum)){
            return false;
        }
        return true;
    }
    /**
     * 计算身份证的第十八位校验码
     * @param cardidArray
     * @return
     */
    public static String sumPower(int[] cardidArray){
        int result = 0;
        for(int i=0;i<power.length;i++){
            result += power[i] * cardidArray[i];
        }
        return refNumber[(result%11)];
    }
    /**
     * 判断日期是否有效
     * @param inDate
     * @return
     */
     public boolean isValidDate(String inDate) {
        if (inDate == null){
          return false;
        }
        SimpleDateFormat dateFormat = new SimpleDateFormat("yyyyMMdd");
        if (inDate.trim().length() != dateFormat.toPattern().length()){
              return false;    
        }
        dateFormat.setLenient(false);//严格的日期匹配
        try {
            dateFormat.parse(inDate.trim());
        } catch (ParseException e) {
            return false;
        }
        return true;
    }
    //@Test
    public void testName(){
        String[] array = {"钟·","在哪"};
        for(int i=0;i<array.length;i++){
            System.out.println(array[i]+":"+isChineseName(array[i]));
        }
    }
    //   
    //@Test
    public void testCardId(){
        String[] array = randomArray(18);
        int index = 0,sum =0;
        for(int i=0;i<array.length;i++){
            sum += 1;
            if(isCardId(array[i])){
                index += 1;
            }
            System.out.println(array[i]+":"+isCardId(array[i]));
        }
        double ret = index/sum;
        System.out.println(index+","+sum+","+ret);
    }
    //@Test
    public void testArray(){
        String[] array = randomArray(15);
        for(int i=0;i<array.length;i++){
            System.out.println(array[i]);
        }
    }
    //@Test
    public void testLastNum(){
        String[] cardId = {"440982199563272359","43010219890414298x"};
        for(int i=0;i<cardId.length;i++){
            System.out.println(cardId[i]+":"+checkCardIdLastNum(cardId[i]));
        }
    }
    //@Test
    public void testProcince(){
        String[] cardId = {"440982199563272359","43010219890414298x"};
        for(int i=0;i<cardId.length;i++){
            System.out.println(cardId[i].substring(0,2)+":"+checkProvinceId(cardId[i].substring(0,2)));
        }
        
    }
    @Test
    public void testDate(){
        String cardId[] = {"445102198904312332",
                "131100200102290696",
                "51042119710630173X",
                "340823196806263613",
                "340703197410050615",
                "440982195201230696",
                "130203196110239132",
                "321101197411218776",
                "340501196812265178",
                "330424197204277791",
                "61040219710929439X",
                "230826195610286476",
                "350305196501252819",
                "450881197212026374",
                "220282197010121032",
                "341723197209084377",
                "451024197211265090",
                "330727195609144416",
                "411626197504219395",
                "230605196203286219",
                "21068119520426399X",
                "511821195404264774",
                "622923197107299798",
        };
        for(int i=0;i<cardId.length;i++){
            
            System.out.println(cardId[i].substring(6,14)+":"+isValidDate(cardId[i].substring(6,14)));
        }
    }
}