1.引用qrcode.js前，去如下地址下载或学习使用
QRCode.js教程地址可参考:http://www.runoob.com/w3cnote/javascript-qrcodejs-library.html
Github 地址：https://github.com/davidshimjs/qrcodejs
2.scanner.html(生成二维码)
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="">
<meta name="keywords" content="">
<meta name="author" content="webthemez">
<!-- Title -->
<title>test</title>
<script type="text/javascript">
function test(){
// 设置参数方式
var qrcode = new QRCode(‘qrcode‘, {
text: ‘test.html‘,
width: 238,//设置二维码的宽
height: 210,//设置二维码的高
colorDark : ‘#000000‘,
colorLight : ‘#ffffff‘,
correctLevel : QRCode.CorrectLevel.H
});
$("#qrcode").show();
}
</script>
</head>
<body class="index" id="to-top" onload="test()">
<footer class="footer-section" role="contentinfo">
<div class="container">
<div class="row">
<p><a name="test">手机APP用户请扫描下方二维码</a></p>
<div id="qrcode" style="display:none;">
</div>
</div>
</div>
</footer>
<script src="js/jquery-2.1.0.min.js"></script>
<script src="js/qrcode.js"></script>
</body>
</html>
3.test.html(微信扫描时，判断是否是微信，根据内核判断，如果是微信跳转到如下weixin.png图，同时也是个html页面，会提示使用在浏览器中打开，然后点击打开浏览器直接下载，非微信浏览器用户可直接扫描下载）
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" /> <title>APP下载</title> <script src="js/jquery-2.1.0.min.js" type="text/javascript" charset="utf-8"></script> <script language="javascript"> window.onload = function() { var u = navigator.userAgent; if (u.indexOf(‘Android‘) > -1 || u.indexOf(‘Linux‘) > -1) { //安卓手机 // alert("安卓手机"); window.location.href = "apk目录"; } else if (u.indexOf(‘iPhone‘) > -1) { //苹果手机 // alert("苹果手机"); window.location.href = "apk目录"; } else if (u.indexOf(‘Windows Phone‘) > -1) { //winphone手机 alert("WindowsPhone暂未推出。"); // window.location.href = "apk目录"; }else{ window.location.href = "apk目录"; } // var vU=JSON.stringify(u); // alert(vU); } $(window).on("load", function() { var winHeight = $(window).height(); function is_weixin() { var ua = navigator.userAgent.toLowerCase(); if (ua.match(/MicroMessenger/i) == "micromessenger") { return true; } else { return false; } } var isWeixin = is_weixin(); if (isWeixin) { $(".weixin-tip").css("height", winHeight); $(".weixin-tip").show(); } }) </script> <style type="text/css"> * { margin: 0; padding: 0; } a { text-decoration: none; } img { max-width: 100%; height: auto; } .weixin-tip { position: fixed; left: 0; top: 0; bottom: 0; background: rgba(0, 0, 0, 0.8); filter: alpha(opacity=80); height: 100%; width: 100%; z-index: 100; } .weixin-tip p { text-align: center; margin-top: 10%; padding: 0 5%; } </style> </head> <body> <div class="weixin-tip"> <p> <img src="images/weixin.png" alt="微信打开" /> </p> </div> </body> </html>
4.图片
weixin.png