javascript实现验证身份证号的有效性并提示

2024-05-06 16:19:05

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下面分享的JS脚本是我用过的最完善的身份证号的验证程序了，因为只有真正的身份证号才能被通过，小伙伴们可以试试。直接复制运行。

javascript实现验证身份证号的有效性并提示

function nunber(allowancePersonValue){

if(allowancePersonValue=="身份证号"){

$("#span_username").show();

$("#span_username").html("身份证号不能为空");

return false;

}

//校验长度，类型

else if(isCardNo(allowancePersonValue) === false)

{

$("#span_username").show();

$("#span_username").html("您输入的身份证号码不正确，请重新输入");

return false;

}

//检查省份

else if(checkProvince(allowancePersonValue) === false)

{

$("#span_username").show();

$("#span_username").html("您输入的身份证号码不正确,请重新输入");

return false;

}

//校验生日

else if(checkBirthday(allowancePersonValue) === false)

{

$("#span_username").show();

$("#span_username").html("您输入的身份证号码生日不正确,请重新输入");

return false;

}

//检验位的检测

else if(checkParity(allowancePersonValue) === false)

{

$("#span_username").show();

$("#span_username").html("您的身份证校验位不正确,请重新输入");

return false;

}else{

$("#span_username").hide();

return true;

}

}

//身份证省的编码

var vcity={ 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"

};

//检查号码是否符合规范，包括长度，类型

function isCardNo(card){

//身份证号码为15位或者18位，15位时全为数字，18位前17位为数字，最后一位是校验位，可能为数字或字符X

var reg = /(^/d{15}$)|(^/d{17}(/d|X)$)/;

if(reg.test(card) === false){

//alert("demo");

return false;

}

return true;

}

//取身份证前两位,校验省份

function checkProvince(card){

var province = card.substr(0,2);

if(vcity[province] == undefined){

return false;

}

return true;

}

//检查生日是否正确

function checkBirthday(card){

var len = card.length;

//身份证15位时，次序为省（3位）市（3位）年（2位）月（2位）日（2位）校验位（3位），皆为数字

if(len == '15'){

var re_fifteen = /^(/d{6})(/d{2})(/d{2})(/d{2})(/d{3})$/;

var arr_data = card.match(re_fifteen);

var year = arr_data[2];

var month = arr_data[3];

var day = arr_data[4];

var birthday = new Date('19'+year+'/'+month+'/'+day);

return verifyBirthday('19'+year,month,day,birthday);

}

//身份证18位时，次序为省（3位）市（3位）年（4位）月（2位）日（2位）校验位（4位），校验位末尾可能为X

if(len == '18'){

var re_eighteen = /^(/d{6})(/d{4})(/d{2})(/d{2})(/d{3})([0-9]|X)$/;

var arr_data = card.match(re_eighteen);

var year = arr_data[2];

var month = arr_data[3];

var day = arr_data[4];

var birthday = new Date(year+'/'+month+'/'+day);

return verifyBirthday(year,month,day,birthday);

}

return false;

}

//校验日期

function verifyBirthday(year,month,day,birthday){

var now = new Date();

var now_year = now.getFullYear();

//年月日是否合理

if(birthday.getFullYear() == year && (birthday.getMonth() + 1) == month && birthday.getDate() == day)

{

//判断年份的范围（3岁到100岁之间)

var time = now_year - year;

if(time >= 3 && time <= 100)

{

return true;

}

return false;

}

return false;

}

//校验位的检测

function checkParity(card){

//15位转18位

card = changeFivteenToEighteen(card);

var len = card.length;

if(len == '18'){

var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2);

var arrCh = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2');

var cardTemp = 0, i, valnum;

for(i = 0; i < 17; i ++)

{

cardTemp += card.substr(i, 1) * arrInt[i];

}

valnum = arrCh[cardTemp % 11];

if (valnum == card.substr(17, 1))

{

return true;

}

return false;

}

return false;

}

//15位转18位身份证号

function changeFivteenToEighteen(card){

if(card.length == '15')

{

var arrInt = new Array(7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2);

var arrCh = new Array('1', '0', 'X', '9', '8', '7', '6', '5', '4', '3', '2');

var cardTemp = 0, i;

card = card.substr(0, 6) + '19' + card.substr(6, card.length - 6);

for(i = 0; i < 17; i ++)

{

cardTemp += card.substr(i, 1) * arrInt[i];

}

card += arrCh[cardTemp % 11];

return card;

}

return card;

}

使用方法：

<input type="text" class="reg_txt" value="身份证号" titles="请输入您的身份证号！" name="userid" id="username" maxlength="40" onfocus="if(this.value=='身份证号'){this.value='';}" onblur="if(this.value==''){this.value='身份证号';}nunber(this.value);" style="border: 1px solid red;"><br>

<span class="c_red" id="span_username"></span>