<div class="iteye-blog-content-contain" style="font-size: 14px"></div>

二话不说，直接上代码

/*** 18位身份证校验,粗略的校验* @author lyl* @param idCard* @return*/public static boolean is18ByteIdCard(String idCard){Pattern pattern1 = Pattern.compile("^(\\d{6})(19|20)(\\d{2})(1[0-2]|0[1-9])(0[1-9]|[1-2][0-9]|3[0-1])(\\d{3})(\\d|X|x)?$"); //粗略的校验Matcher matcher = pattern1.matcher(idCard);if(matcher.matches()){return true;}return false;}/*** 18位身份证校验,比较严格校验* @author lyl* @param idCard* @return*/public static boolean is18ByteIdCardComplex(String idCard){Pattern pattern1 = Pattern.compile("^(\\d{6})(19|20)(\\d{2})(1[0-2]|0[1-9])(0[1-9]|[1-2][0-9]|3[0-1])(\\d{3})(\\d|X|x)?$"); Matcher matcher = pattern1.matcher(idCard);int[] prefix = new int[]{7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2};int[] suffix = new int[]{ 1, 0, 10, 9, 8, 7, 6, 5, 4, 3, 2 };if(matcher.matches()){Map<String, String> cityMap = initCityMap();if(cityMap.get(idCard.substring(0,2)) == null ){return false;}int idCardWiSum=0; //用来保存前17位各自乖以加权因子后的总和for(int i=0;i<17;i++){idCardWiSum+=Integer.valueOf(idCard.substring(i,i+1))*prefix[i];}int idCardMod=idCardWiSum%11;//计算出校验码所在数组的位置String idCardLast=idCard.substring(17);//得到最后一位身份证号码//如果等于2，则说明校验码是10，身份证号码最后一位应该是Xif(idCardMod==2){if(idCardLast.equalsIgnoreCase("x")){return true;}else{return false;}}else{//用计算出的验证码与最后一位身份证号码匹配，如果一致，说明通过，否则是无效的身份证号码if(idCardLast.equals(suffix[idCardMod]+"")){return true;}else{return false;}}}return false;}private static Map<String, String> initCityMap(){Map<String, String> cityMap = new HashMap<String, String>();cityMap.put("11", "北京");cityMap.put("12", "天津");cityMap.put("13", "河北");cityMap.put("14", "山西");cityMap.put("15", "内蒙古");cityMap.put("21", "辽宁");cityMap.put("22", "吉林");cityMap.put("23", "黑龙江");cityMap.put("31", "上海");cityMap.put("32", "江苏");cityMap.put("33", "浙江");cityMap.put("34", "安徽");cityMap.put("35", "福建");cityMap.put("36", "江西");cityMap.put("37", "山东");cityMap.put("41", "河南");cityMap.put("42", "湖北");cityMap.put("43", "湖南");cityMap.put("44", "广东");cityMap.put("45", "广西");cityMap.put("46", "海南");cityMap.put("50", "重庆");cityMap.put("51", "四川");cityMap.put("52", "贵州");cityMap.put("53", "云南");cityMap.put("54", "西藏");cityMap.put("61", "陕西");cityMap.put("62", "甘肃");cityMap.put("63", "青海");cityMap.put("64", "宁夏");cityMap.put("65", "新疆");//          cityMap.put("71", "台湾");
//          cityMap.put("81", "香港");
//          cityMap.put("82", "澳门");
//          cityMap.put("91", "国外");
//          System.out.println(cityMap.keySet().size());return cityMap;}