驗證身份證的有效性，是否符合身份證規範

    /** 
     * 功能：身份證的有效驗證 
     * @param IDStr 身份證號 
     * @return 有效：返回"true" ；無效：返回String資訊 
     * @throws ParseException 
     */ 
    public static String IDCardValidate(String IDStr) throws ParseException {  
        String errorInfo = "true";// 記錄錯誤資訊  
        String[] ValCodeArr = { "1", "0", "x", "9", "8", "7", "6", "5", "4","3", "2" };  
        String[] Wi = { "7", "9", "10", "5", "8", "4", "2", "1", "6", "3", "7",  
                "9", "10", "5", "8", "4", "2" };  
        String Ai = "";
        String Ai1 = "";
        String Ai2 = "";
        
        // 號碼的長度 15位或18位 
        if (IDStr.length() != 15 && IDStr.length() != 18) {  
            errorInfo = "身份證號格式不正確";  
            return errorInfo;  
        }  
 
        //數字 除最後以為都為數字
        if (IDStr.length() == 18) {  
            Ai = IDStr.substring(0, 17);  
        } else if (IDStr.length() == 15) {  
            Ai = IDStr.substring(0, 6) + "19" + IDStr.substring(6, 15);  
        }  
        if (isNumeric(Ai) == false) {  
            errorInfo = "身份證號格式不正確";  
            return errorInfo;  
        }  
 
        //出生年月是否有效
        String strYear = Ai.substring(6, 10);// 年份  
        String strMonth = Ai.substring(10, 12);// 月份  
        String strDay = Ai.substring(12, 14);// 月份  
        if (isDataFormat(strYear + "-" + strMonth + "-" + strDay) == false) {  
            errorInfo = "身份證生日無效。";  
            return errorInfo;  
        }  
        GregorianCalendar gc = new GregorianCalendar();  
        SimpleDateFormat s = new SimpleDateFormat("yyyy-MM-dd");  
        try {
			if ((gc.get(Calendar.YEAR) - Integer.parseInt(strYear)) > 150 
			     || (gc.getTime().getTime() - s.parse(strYear + "-" + strMonth + "-" + strDay).getTime())< 0){  
			    errorInfo = "身份證生日不在有效範圍。";  
			    return errorInfo;  
			}
		} catch (NumberFormatException e) {
			e.printStackTrace();
		} catch (java.text.ParseException e) {
			e.printStackTrace();
		}  
        if (Integer.parseInt(strMonth) > 12 || Integer.parseInt(strMonth) == 0) {  
            errorInfo = "身份證月份無效";  
            return errorInfo;  
        }  
        if (Integer.parseInt(strDay) > 31 || Integer.parseInt(strDay) == 0) {  
            errorInfo = "身份證日期無效"; 
            return errorInfo;  
        }  
 
        //地區碼時候有效  
        Hashtable h = GetAreaCode();  
        if (h.get(Ai.substring(0, 2)) == null) {  
            errorInfo = "身份證地區編碼錯誤";  
            return errorInfo;  
        }  
 
        //判斷最後一位的值 
        int TotalmulAiWi = 0;  
        for (int i = 0; i < 17; i++) {  
            TotalmulAiWi = TotalmulAiWi  
                    + Integer.parseInt(String.valueOf(Ai.charAt(i)))  
                    * Integer.parseInt(Wi[i]);  
        }  
        int modValue = TotalmulAiWi % 11;  
        String strVerifyCode = ValCodeArr[modValue]; 
        Ai1 = Ai + strVerifyCode.toUpperCase();   
        Ai2 = Ai + strVerifyCode.toLowerCase(); 
        if (IDStr.length() == 18) {  
             if (Ai1.equals(IDStr) == false && Ai2.equals(IDStr) == false) {  
                 errorInfo = "身份證號格式不正確"; 
                 return errorInfo;  
             } 
         }
        else{
        	return errorInfo;
        }
         return errorInfo;  
     }
 

     /** 
      * 功能：判斷字串是否為數字 
      * @param str 
      * @return 
      */ 
     private static boolean isNumeric(String str) {  
         Pattern pattern = Pattern.compile("[0-9]*");  
         Matcher isNum = pattern.matcher(str);  
         if (isNum.matches()) {  
             return true;  
         } else {  
             return false;  
         }  
     }
 

     /** 
      * 功能：設定地區編碼 
      * @return Hashtable 物件 
      */ 
     private static Hashtable GetAreaCode() {  
         Hashtable hashtable = new Hashtable();  
         hashtable.put("11", "北京");  
         hashtable.put("12", "天津");  
         hashtable.put("13", "河北");  
         hashtable.put("14", "山西");  
         hashtable.put("15", "內蒙古");  
         hashtable.put("21", "遼寧");  
         hashtable.put("22", "吉林");  
         hashtable.put("23", "黑龍江");  
         hashtable.put("31", "上海");  
         hashtable.put("32", "江蘇");  
         hashtable.put("33", "浙江");  
         hashtable.put("34", "安徽");  
         hashtable.put("35", "福建");  
         hashtable.put("36", "江西");  
         hashtable.put("37", "山東");  
         hashtable.put("41", "河南");  
         hashtable.put("42", "湖北");  
         hashtable.put("43", "湖南");  
         hashtable.put("44", "廣東");  
         hashtable.put("45", "廣西");  
         hashtable.put("46", "海南");  
         hashtable.put("50", "重慶");  
         hashtable.put("51", "四川");  
         hashtable.put("52", "貴州");  
         hashtable.put("53", "雲南");  
         hashtable.put("54", "西藏");  
         hashtable.put("61", "陝西");  
         hashtable.put("62", "甘肅");  
         hashtable.put("63", "青海");  
         hashtable.put("64", "寧夏");  
         hashtable.put("65", "新疆");  
         hashtable.put("71", "臺灣");  
         hashtable.put("81", "香港");  
         hashtable.put("82", "澳門");  
         hashtable.put("91", "國外");  
         return hashtable;  
     } 
 

     /**
      * 驗證日期字串是否是YYYY-MM-DD格式
      * @param str
      * @return
      */
    public static boolean isDataFormat(String str){
      boolean flag=false;
       //String regxStr="[1-9][0-9]{3}-[0-1][0-2]-((0[1-9])|([12][0-9])|(3[01]))";
      String regxStr="^((\\d{2}(([02468][048])|([13579][26]))[\\-\\/\\s]?((((0?[13578])|(1[02]))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])))))|(\\d{2}(([02468][1235679])|([13579][01345789]))[\\-\\/\\s]?((((0?[13578])|(1[02]))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(3[01])))|(((0?[469])|(11))[\\-\\/\\s]?((0?[1-9])|([1-2][0-9])|(30)))|(0?2[\\-\\/\\s]?((0?[1-9])|(1[0-9])|(2[0-8]))))))(\\s(((0?[0-9])|([1-2][0-3]))\\:([0-5]?[0-9])((\\s)|(\\:([0-5]?[0-9])))))?$";
      Pattern pattern1=Pattern.compile(regxStr);
      Matcher isNo=pattern1.matcher(str);
      if(isNo.matches()){
        flag=true;
      }
      return flag;
   }