最严格的身份证校验（Java版）
上一篇博客贴出了JavaScript版本的身份证校验，本篇博客将贴出Java版的身份证校验：
import java.util.Date;
/**
* 校验身份证号码是否有效
*
* @author GaoHuanjie
*/
public class CheckCertificateNo {
@SuppressWarnings("deprecation")
publicstaticvoid main(String[] args) {
String certificateNo = "61072919761109762X";//身份证号码
if(certificateNo.length() == 15){
System.err.println("身份证号码无效，请使用第二代身份证！！！");
}elseif(certificateNo.length() == 18){
String address = certificateNo.substring(0,6);//6位，地区代码
String birthday = certificateNo.substring(6,14);//8位，出生日期
String sequenceCode = certificateNo.substring(14,17);//3位，顺序码：奇为男，偶为女
String checkCode = certificateNo.substring(17);//1位，校验码：检验位
System.out.println("身份证号码:"+certificateNo+"、地区代码:"+address+"、出生日期:"+birthday+"、顺序码:"+sequenceCode+"、校验码:"+checkCode+"\n");
String [] provinceArray = {"11:北京","12:天津","13:河北","14:山西","15:内蒙古","21:辽宁","22:吉林","23:黑龙江","31:上海","32:江苏","33:浙江","34:安徽", "35:福建","36:江西","37:山东","41:河南","42:湖北 ","43:湖南","44:广东","45:广西","46:海南","50:重庆","51:四川","52:贵州","53:云南","54:西藏 ","61:陕西","62:甘肃","63:青海","64:宁夏", "65:新疆","71:台湾","81:香港","82:澳门","91:国外"};
boolean valideAddress =false;
for (int i = 0; i < provinceArray.length; i++) {
String provinceKey =provinceArray[i].split(":")[0];
if (provinceKey.equals(address.substring(0,2))){
valideAddress = true;
}
}
if (valideAddress) {
Stringyear = birthday.substring(0,4);
String month =birthday.substring(4,6);
String day =birthday.substring(6);
Date tempDate = newDate(Integer.parseInt(year),Integer.parseInt(month)-1,Integer.parseInt(day));
if((tempDate.getYear()!=Integer.parseInt(year)|| tempDate.getMonth()!=Integer.parseInt(month)-1 || tempDate.getDate()!=Integer.parseInt(day))){//避免千年虫问题
System.err.println("身份证号码无效，请重新输入！！！");
}else{
int [] weightedFactors = { 7, 9, 10, 5, 8, 4, 2,1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1 };//加权因子
int [] valideCode = { 1, 0, 10, 9, 8, 7, 6, 5,4, 3, 2 };//身份证验证位值，其中10代表X
int sum = 0;//声明加权求和变量
String []certificateNoArray =newString[certificateNo.length()];
for (int i = 0; i < certificateNo.length(); i++) {
certificateNoArray[i] =String.valueOf(certificateNo.charAt(i));
}
if ("x".equals(certificateNoArray[17].toLowerCase())) {
certificateNoArray[17] ="10";//将最后位为x的验证码替换为10
}
for (int i = 0; i < 17; i++) {
sum += weightedFactors[i]* Integer.parseInt(certificateNoArray[i]);//加权求和
}
int valCodePosition = sum % 11;//得到验证码所在位置
if (Integer.parseInt(certificateNoArray[17])== valideCode[valCodePosition]) {
String sex = "男";
if(Integer.parseInt(sequenceCode)%2==0){
sex = "女";
}
System.out.println("身份证号码有效，性别为："+sex+"！");
} else {
System.err.println("身份证号码无效，请重新输入！！！");
}
}
} else {
System.err.println("身份证号码无效，请重新输入！！！");
}
}else{
System.err.println("非身份证号码，请输入身份证号码！！！");
}
}
}