nodejs动态创建二维码的方法

本文实例为大家分享了nodejs动态创建二维码的具体代码，供大家参考，具体内容如下

<!--弹出二维码-->
<div class="qrcode">
 <div>
 <p id="saoma">扫描二维码</p>
 </div>
</div>

js代码：

$.ajax({
 type: 'POST',
 url: '/house',
 data: {
 data:'你的数据'
 },
 dataType: 'json',
 success: function (data) {
 if (data.code == 0) {
 alert("成功");
 $('#saoma').before('<img class="qrcode_show" src="https://www.gxlcms.com/newQrCode?url='+ data.data +'"alt=""/>'); 
 }else {
 alert('失败');
 }
 }
})

nodejs:

var express = require('express');
var request = require('request');
var url = require('url');
var qrImg = require('qr-image');

//生成二维码
app.get('/newQrCode', function (req, res) {
 var par = url.parse(req.url, true).query;
 var thisUrl = par.url;
 var thisParam = par.id;
 var imgUrl = thisUrl + '?id=' + thisParam;
 var img = qrImg.image(imgUrl, { size: 10 });
 res.writeHead(200, { 'Content-Type': 'image/png' });
 img.pipe(res);
});

var bodyParser = require('body-parser');
var urlencodeRarser = bodyParser.urlencoded({ extended: false });
app.post('/house',urlencodeRarser,function (req, res) {
 var data = req.body;
 var result = JSON.stringify({code:0, data:'http://www.baidu.com/&id=' + data.data});
 //console.log(result)
 res.end(result);

});