java身份證生日

⑴ 用java從任意給定的身份證號碼中提取此人的出生日期

用Java從任意給定的身份證號碼中提取此人的出生日期，例子如下：

publicclassTestC{
	publicstaticvoidmain(String[]args){
		//18位的第二代身份版證,出生日期是權從7位到14位是出生日期
		Stringstr="450919199903050123";
		//字元串截取下標從0開始的
		Stringbirthday=str.substring(6,14);
		System.out.println(birthday);
	}
}

結果：
19990305

⑵ java輸入身份證（18位），輸出年齡。

剛寫出來，其實就是字元串的截取。

package com.swing;
import java.util.Calendar;
import java.util.Timer;
public class NianLing {
public static void main(String[] args) {
String s = "610400199011100000";
s = s.substring(6, s.length()-8);
System.out.println(s);
Calendar cal = Calendar.getInstance();
java.util.Date date = cal.getTime();
String s1 = date.toString();
String s2 = (String) s1.subSequence(s1.length()-4, s1.length());
System.out.println(date);
System.out.println(s2);
Integer int1 = Integer.parseInt(s);
Integer int2 = Integer.parseInt(s2);
Integer age = int2-int1;
System.out.println("age : " + age);
}
}

輸出結果：age：22
1990
Fri Dec 14 23:26:52 CST 2012
2012
age : 22

⑶ 在java中怎麼用String 的方法，截取身份證號碼中的出生日期

static substring方法。你都知道要用String的方法了 就不會去查API嘛

⑷ java校驗身份證號碼，解析出生日期，年齡，身份證是否有效

這種我能想到的就是校驗身份證字元串的位數，寫個正則表達式校驗前面的17位為數字，通過了截取第七位到第15位，為出生日期，年齡也差不多，取系統時間年份與出生年減一下

⑸ java源代碼是給你一個身份證號，通過面板身份證號的輸入，顯示出該身份證主人的出生年月，省份，性別等資料

我當初用struts1和hibernate做了個簡單的！主要的邏輯代碼在下面！資料庫里號碼對應的城市在網上可以查的到
package ;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.List;

import org.hibernate.Criteria;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.hibernate.criterion.Expression;

import entity.Shenfenzhen;

public class IdDao {
private static Configuration configuration = new Configuration().configure() ;

private static SessionFactory sessionFactory =configuration.buildSessionFactory();
private static Session session = null;

public Info query(String s){
Info info = null;
StringBuffer stringBuffer = new StringBuffer(s);
if(s.length()==18){
String end = stringBuffer.substring(17);
//System.out.println(end);
if(!end.matches("\\d||x")){
return null;
}

}
else if(s.length()==15){
stringBuffer.insert(6, "19");
stringBuffer.append("3");
}
int i = Integer.parseInt(stringBuffer.substring(0, 6));
//System.out.println(i);
session = sessionFactory.openSession();
Criteria criteria = session.createCriteria(Shenfenzhen.class);
criteria.add(Expression.eq("num", i));
List<Shenfenzhen> list = criteria.list();
String address = null;
try {
address = list.get(0).getAddress();
}catch (Exception e) {
return null;
}
i = Integer.parseInt(stringBuffer.substring(16,17));
String sex = null;
if(i%2==0){
sex = "女";
}else{
sex = "男";
}
//System.out.println(i);
stringBuffer = new StringBuffer(stringBuffer.substring(6, 14));
// stringBuffer.insert(4, "-");
// stringBuffer.insert(7, "-");
//System.out.println(stringBuffer);
String ss = stringBuffer.toString();
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyyMMdd");
String brithday="";
int year=0;
int month =0;
int day =0;
try {
Date date = dateFormat.parse(ss);
//System.out.println(date);
Calendar calendar = Calendar.getInstance();
calendar.setTime(date);
year = calendar.get(Calendar.YEAR);
month = calendar.get(Calendar.MONTH)+1;
day = calendar.get(Calendar.DAY_OF_MONTH);
brithday = (String)(year + "年" + month + "月" + day + "日");
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
info = new Info(address, brithday, sex);
Calendar c = Calendar.getInstance();
int nowYear = c.get(Calendar.YEAR);
int nowMonth = c.get(Calendar.MONTH);
int nowDay = c.get(Calendar.DAY_OF_MONTH);

if(nowYear<year){
info = null;
}else if(nowYear ==year && nowMonth<month ){
info = null;
}else if(nowYear == year && nowMonth==month && nowDay<day){
info = null;
}
closeSession(session);
return info;
}

// public static void main(String[] args){
// IdDao = new IdDao();
// .query("342522998711224513");
// System.out.println("x".matches("\\d||x"));
// }
private void closeSession(Session session){
if(session !=null){
session.close();
}
}

}