身份证号工具类

package com.wondersgroup.kszx.util;

import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class IdCardUtil {
	
	
	private static final String regEx_15="(\b[0-9]{6})([0-9]{2})([0-9]{2})([0-9]{2})([0-9]{2})([0-9]{1})";
	private static final String regEx_18="(\b[0-9]{6})([0-9]{2})([0-9]{2})([0-9]{2})([0-9]{2})([0-9]{2})([0-9]{1})([0-9]{1}|x|X\b)";
	/**
	 * 获取正则表达试
	 * @param card
	 * @return
	 */
	public static String getregEx(String card){
		if(card.toString().length()==15){
			return regEx_15;
		}else if(card.toString().length()==18){
			return regEx_18;
		}else{
			return "";
		}
	}
	/**
	 * 验证身份证
	 * @param card
	 * @return
	 */
	public static boolean validateCard(String card){
		try{ 
			if(card==null)return false;
			if(card.toString().length()!=15 && card.toString().length()!=18)return false;
			 
			Pattern p=Pattern.compile(getregEx(card));
			Matcher m=p.matcher(card); 
			if(m.find()){    
				return true;
			}else{
				return false;
			}
		}catch(Exception ex){
			ex.printStackTrace();
			return false;
		}
	}
	/**
	 * 通过身份证解析性别
	 * @param card
	 * @return
	 */
	public static String parseCardSex(String card){
		String sex="";
		int s=10;
		try{  
			if(validateCard(card)){ 
				Pattern pp=Pattern.compile(getregEx(card));
				Matcher mm=pp.matcher(card);  
				while(mm.find()){
					if(mm.groupCount()==6){
						s=Integer.parseInt(mm.group(6));
					}else if(mm.groupCount()==8){
						s=Integer.parseInt(mm.group(7));
					}else{
						
					} 
				}
			} 
			if(s<10 && s%2==0){
				sex="0";
			}else if(s<10 && s%2==1){
				sex="1";
			}else{
				sex="2";
			}
		}catch(Exception ex){
			ex.printStackTrace();
		}
		return sex;
	}
	/**
	 * 
	 * @param cardObj
	 * @return
	 */
	public static String paresCardSex(Object cardObj){
		return paresCardSex(cardObj);
	}
	/**
	 * 通过身份证获取出生年月
	 * @param cardObj
	 * @return
	 */
	public static String getBrithDayByCard(Object cardObj){
		String date="";
		try{  
			String card =cardObj.toString();
			if(validateCard(card)){ 
				Pattern pp=Pattern.compile(getregEx(card));
				Matcher mm=pp.matcher(card);  
				while(mm.find()){
					if(mm.groupCount()==6){
						date="19"+mm.group(2)+"-"+mm.group(3)+"-"+mm.group(4);
					}else if(mm.groupCount()==8){
						date=mm.group(2)+mm.group(3)+"-"+mm.group(4)+"-"+mm.group(5);
					}else{
						
					} 
				}
			}  
		}catch(Exception ex){
			ex.printStackTrace();
		}
		return date;
	}
	
	public static String trans15to18(String oriNo) {
//		if(oriNo==null||(oriNo.length()!=15 && oriNo.length()!=18)){
//			return oriNo;
//		}
//		if(oriNo.length()==18){//211028 19 820909123 4
//			oriNo=StringUtil.subString(oriNo,1,6)+StringUtil.subString(oriNo,9,9);
//		}
		if(oriNo==null||oriNo.length()!=15){
			return oriNo;
		}
		int[] ai = new int[17];
		int[] wi = { 7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2 };
		char[] veriCode =
			{ '1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2' };
		String str1 = oriNo.substring(0, 6);
		String str2 = oriNo.substring(6);
		oriNo = str1 + "19" + str2;
		char[] aiCh = oriNo.toCharArray();
		for (int i = 0; i < ai.length; i++) {
			ai[i] = Character.getNumericValue(aiCh[i]);
		}
		int s = 0;
		for (int j = 0; j < ai.length; j++) {
			s = s + ai[j] * wi[j];
		}
		int y = s % 11;
		char lastCh=veriCode[y];
		return oriNo+Character.toString(lastCh);
	}
	
	/**
	 * 身份证18位转15位
	 * @param s18
	 * @return
	 * @throws Exception
	 */
	public static String trans18to15(String s18) throws Exception
	{
		if (s18 == null)
		{
			throw new Exception("trans18To15(): Error input ID number: ID number is null!");
		}
		if (s18.length() != 18)
		{
			throw new Exception("trans18To15(): Error input ID number(" + s18 + "): ID.length()!=18");
		} 
		else
		{
			char[] chA = s18.toCharArray();
			// 数据合法性检验
			for (int i = 0; i < 18; i++)
			{
				if (chA[i] < '0' || chA[i] > '9')
				{
					if (i != 17)
					{
						throw new Exception("trans18To15(): Error input ID number(" + s18 + "): is not number!");
					} else if (chA[i] != 'x' && chA[i] != 'X')
					{
						throw new Exception("trans18To15(): Error input ID number(" + s18 + "): is not number!");
					}
				}
			}
			return s18.substring(0, 6) + s18.substring(8, 17);
		}
	}
	/**
	 * @param args
	 */
	public static void main(String[] args) {
		// TODO Auto-generated method stub
//		List list=new ArrayList();
//		list.add("310113198403099890");
//		for(int i=0;i<list.size();i++){
//			System.out.println(IdCardUtil.trans15to18(list.get(i).toString()));
//		}
//		System.out.println(IdCardUtil.getBrithDayByCard("31011419840406301X"));
		System.out.println(IdCardUtil.trans15to18("310110580813423"));
	}

}