微信小程序身份证验证方法实现详解

<view class='box'> 
<view class='box-shang'>  
<view class='box-shang_left'>   
<text class='text1'>姓名</text>  
</view>  
<view class='box-shang_right'>   
<input placeholder='请输入姓名' id='name' bindinput='bininput_name' auto-focus></input>  
</view> 
</view> 
<view class='box-shang'>  
<view class='box-shang_left'>   
<text>身份证</text>  
</view>  
<view class='box-shang_right'>  
<input placeholder='请输入身份证' id='identity' bindinput='bininput_identity' auto-focus></input>  
</view> </view> <view class='box-shang'>  
<view class='box-shang_left'>   
<text>手机号</text>  </view>  <view class='box-shang_right'>   
<input placeholder='请输入手机号' id='mobile' bindinput='bininput_mobile' auto-focus></input>  
</view> </view> <view>  
<text class='text2'>和你的关系</text> 
</view>
</view>

//绑定输入的姓名 
bininput_name: function (e) {  this.setData({   name: e.detail.value  }) }, 
//绑定输入的身份证 
bininput_identity: function (e) {  this.setData({   identity: e.detail.value  }) }, 
//绑定输入的电话 
bininput_mobile: function (e) {  this.setData({   mobile: e.detail.value  }) },

/身份证验证输入是否正确 
 身份证号合法性验证 
支持15位和18位身份证号 支持地址编码、出生日期、校验位验证/ 
getBirthAndSex: function (e) {  
var ts = this;  
 var code = this.data.identity //identity 为你输入的身份证  
console.log(code) 
var city = { 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 " }; 
var tip = ""; 
 var pass = true; 
var reg = /^\d{6}(18|19|20)?\d{2}(0[1-9]|1[012])(0[1-9]|[12]\d|3[01])\d{3}(\d|X)$/; 
if(!code || !code.match(reg)) { 
tip = "身份证号格式错误"; 
pass = false;
} else if (!city[code.substr(0, 2)]) { 
tip = "地址编码错误"; pass = false;
} else { 
//18位身份证需要验证一位校验位 
if (code.length == 18) {  code = code.split('');  
//∑(ai×Wi)(mod 11)  
//加权因子  
 var factor = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2];  
//校验位  var parity = [1, 0, 'X', 9, 8, 7, 6, 5, 4, 3, 2];  
var sum = 0;  
var ai = 0;  
var wi = 0;  
for (var i = 0; i < 17; i++) {   
ai = code[i];   
 wi = factor[i];   
sum += ai  wi;  
 }  
var last = parity[sum % 11];  
if (parity[sum % 11] != code[17]) {   
 tip = "校验位错误";   
 pass = false;   
 }  
 } 
 }  
console.log("pass==="+pass) 
 if (pass) { ts.setData({ allow_id: true }); wx.setStorageSync("idcard", code) } 
 if (!pass) console.log("tip" + tip); 
return pass;
},
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