JS验证身份证

/** ?* 身份证15位编码规则：dddddd yymmdd xx p * dddddd：地区码 * yymmdd: 出生年月日 * xx: 顺序类编码，无法确定 * p: 性别，奇数为男，偶数为女 * <p /> * 身份证18位编码规则：dddddd yyyymmdd xxx y * dddddd：地区码 * yyyymmdd: 出生年月日 * xxx:顺序类编码，无法确定，奇数为男，偶数为女 * y: 校验码，该位数值可通过前17位计算获得 * <p /> * 18位号码加权因子为(从右到左) wi = [ 7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2,1 ] * 验证位 Y = [ 1, 0, 10, 9, 8, 7, 6, 5, 4, 3, 2 ] * 校验位计算公式：Y_P = mod( ∑(Ai×wi),11 ) * i为身份证号码从右往左数的 2...18 位; Y_P为校验码所在校验码数组位置 * */// 加权因子var wi = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2, 1];// 身份证验证位值.10代表X ??var valideCodeArr = [1, 0, 10, 9, 8, 7, 6, 5, 4, 3, 2]; // 区域IDvar areaMap = {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"};// 男女IDvar sexMap = {0:"女",1:"男"};//错误信息var status = new Array("true", "身份证号码位数不对!", "身份证号码出生日期超出范围或含有非法字符!", "身份证号码校验错误!", "身份证地区非法!"); ?/** * 验证ID，正确返回“true”，错误则返回错误信息 * @param {Object} idCard */function checkIdCard(idCard){ ???//去掉首尾空格 ???idCard = trim(idCard.replace(/ /g, "")); ???????if (idCard.length == 15||idCard.length == 18) { ???????if (!checkArea(idCard)) { ???????????return status[4]; ???????} else if(!checkBrith(idCard)){ ???????????return status[2]; ???????} else if(idCard.length == 18 && !check18Code(idCard)){ ???????????return status[3]; ???????} else { ???????????return status[0]; ???????} ???} else { ???????//不是15或者18，位数不对 ???????return status[1]; ???}} ?/** * 显示解析出的信息 * @param {Object} idCard 正确的ID号 * @param {Object} sexId 性别要显示的Input的id * @param {Object} birthId 生日要显示的Input的id * @param {Object} areaId 地区要显示的Input的id */function showIDInfo(idCard,areaId,sexId, birthId){ ???// 对身份证号码做处理。包括字符间有空格。 ???idCard = trim(idCard.replace(/ /g, "")); ???????// 性别 ???$("#"+sexId).val(getSex(idCard)); ???// 地区 ??????$("#"+areaId).val(getArea(idCard)); ???//生日 ???$("#"+birthId).val(getBirthday(idCard));} ?/** * 得到地区码代表的地区 ?* @param {Object} idCard 正确的15/18位身份证号码 */function getArea(idCard){ ???return areaMap[parseInt(idCard.substr(0, 2))];} /** ?* 通过身份证得到性别 * @param idCard 正确的15/18位身份证号码 * @return 女、男 */function getSex(idCard){ ???if (idCard.length == 15) { ???????return sexMap[idCard.substring(14, 15) % 2]; ???} else if (idCard.length == 18) { ???????return sexMap[idCard.substring(14, 17) % 2]; ???} else { ???????//不是15或者18,null ???????return null; ???}} /** * 得到生日"yyyy-mm-dd" * @param {Object} idCard 正确的15/18位身份证号码 */function getBirthday(idCard){ ???var birthdayStr; ????if (15 == idCard.length) { ???????birthdayStr = idCard.charAt(6) + idCard.charAt(7); ???????????????if (parseInt(birthdayStr) < 10) { ???????????birthdayStr = ‘20‘ + birthdayStr; ???????} else { ???????????birthdayStr = ‘19‘ + birthdayStr; ???????} ???????birthdayStr = birthdayStr + ‘-‘ + idCard.charAt(8) + idCard.charAt(9) + ‘-‘ + idCard.charAt(10) + idCard.charAt(11); ???}else if (18 == idCard.length) { ???????birthdayStr = idCard.charAt(6) + idCard.charAt(7) + idCard.charAt(8) + idCard.charAt(9) + ‘-‘ + idCard.charAt(10) + idCard.charAt(11) + ‘-‘ + idCard.charAt(12) + idCard.charAt(13); ???} ???????return birthdayStr;} /** * 验证身份证的地区码 * @param {Object} idCard 身份证字符串 */function checkArea(idCard){ ???if(areaMap[parseInt(idCard.substr(0, 2))] == null){ ???????return false; ???} else { ???????return true; ???}} /** ?* 验证身份证号码中的生日是否是有效生日 * @param idCard 身份证字符串 * @return */function checkBrith(idCard){ ???var result = true; ???????if (15 == idCard.length) { ???????var year = idCard.substring(6, 8); ???????var month = idCard.substring(8, 10); ???????var day = idCard.substring(10, 12); ???????var temp_date = new Date(year, parseFloat(month) - 1, parseFloat(day)); ??????????????// 对于老身份证中的你年龄则不需考虑千年虫问题而使用getYear()方法 ?????????if (temp_date.getYear() != parseFloat(year) || temp_date.getMonth() != parseFloat(month) - 1 || temp_date.getDate() != parseFloat(day)) { ???????????result = ?false; ???????} ???} else if (18 == idCard.length) { ???????var year = idCard.substring(6, 10); ???????var month = idCard.substring(10, 12); ???????var day = idCard.substring(12, 14); ???????var temp_date = new Date(year, parseFloat(month) - 1, parseFloat(day)); ???????????????// 这里用getFullYear()获取年份，避免千年虫问题 ?????????if (temp_date.getFullYear() != parseFloat(year) || temp_date.getMonth() != parseFloat(month) - 1 || temp_date.getDate() != parseFloat(day)) { ???????????result = false; ???????} ???} else { ???????result = false; ???} ???????return result;} /** ?* 判断身份证号码为18位时最后的验证位是否正确 * @param idCardArr 身份证号码数组 * @return */function check18Code(idCardArr){ ???var sum = 0; // 声明加权求和变量 ???????if (idCardArr[17].toLowerCase() == ‘x‘) { ???????idCardArr[17] = 10;// 将最后位为x的验证码替换为10方便后续操作 ?????} ???????for (var i = 0; i < 17; i++) { ???????sum += wi[i] * idCardArr[i];// 加权求和 ?????} ???????var valCodePosition = sum % 11;// 得到验证码所位置 ???if (idCardArr[17] == valideCodeArr[valCodePosition]) { ???????return true; ???} else { ???????return false; ???}} //去掉字符串头尾空格 ?function trim(str){ ???return str.replace(/(^\s*)|(\s*$)/g, "");}

<!DOCTYPE html><html> ???<head> ???????<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> ???????<title>CordBirthday</title> ???????<script type="text/javascript" src="jquery-1.4.4.min.js"></script> ???????<script type="text/javascript" ?src="IDVerifier.js"></script> ???????<script type="text/javascript"> ???????????function validite(){ ???????????????var id = $("#idCard").val(); ???????????????var resultstr = checkIdCard(id); ????????????????if (resultstr == "true") { ???????????????????showIDInfo(id,"area" ,"sex", "birthday"); ???????????????} else { ???????????????????$(‘#sex‘).val(""); ???????????????????$(‘#birthday‘).val(""); ???????????????????$(‘#area‘).val(""); ???????????????????alert(resultstr); ???????????????} ???????????} ???????</script> ???</head> ???<body> ???????<form> ???????????<table align="center"> ???????????????<tr> ???????????????????<td align="center"> ???????????????????????身份证<input type="text" id="idCard"> ???????????????????</td> ???????????????</tr> ???????????????<tr> ???????????????????<td align="center"> ???????????????????????地区<input type="text" id="area"> ???????????????????</td> ???????????????</tr> ???????????????<tr> ???????????????????<td align="center"> ???????????????????????性别<input type="text" id="sex"> ???????????????????</td> ???????????????</tr> ???????????????<tr> ???????????????????<td align="center"> ???????????????????????生日<input type="text" id="birthday"> ???????????????????</td> ???????????????</tr> ???????????????<tr> ???????????????????<td align="center"> ???????????????????????<input type="button" value="OK" onclick="validite()"> ???????????????????</td> ???????????????</tr> ???????????</table> ???????</form> ???</body></html>