<!DOCTYPE HTML>
<html>
<head>
<title>生成带有logo的二维码</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<!--此处需要引入三个JS文件
一、jquery-1.8.2.js
二、excanvas.js
三、qrcode.js
顺序要注意，不能乱了顺序；
-->
<script src="js/jquery-1.8.2.js" type="text/javascript"></script>
<script src="js/excanvas.js"></script>
<script src="js/qrcode.js"></script>
<script type="text/javascript">
$(function() {
$("#bt").bind("click",
function() {
$("#qrcode_div").empty();
var text = $("#text").val();
$('#qrcode_div').qrcode({
render: 'canvas',
text: utf16to8(text),
height: 200,
width: 200,
typeNumber: -1, //计算模式
correctLevel: QRErrorCorrectLevel.M,//纠错等级
background: "#ffffff", //背景颜色
foreground: "#000000", //前景颜色
//logo图片地址
src: 'logo.png'
});
//console.info("wwww");
}
);
});
function utf16to8(str) { //转码
var out, i, len, c;
out = "";
len = str.length;
for (i = 0; i < len; i++) {
c = str.charCodeAt(i);
if ((c >= 0x0001) && (c <= 0x007F)) {
out += str.charAt(i);
} else if (c > 0x07FF) {
out += String.fromCharCode(0xE0 | ((c >> 12) & 0x0F));
out += String.fromCharCode(0x80 | ((c >> 6) & 0x3F));
out += String.fromCharCode(0x80 | ((c >> 0) & 0x3F));
} else {
out += String.fromCharCode(0xC0 | ((c >> 6) & 0x1F));
out += String.fromCharCode(0x80 | ((c >> 0) & 0x3F));
}
}
return out;
}
</script>
</head>
<body>
<input type="text" id="text" value="甜甜，我爱你！" style="width:200px;"/>
<input type="button" value="生成二维码" id="bt" />
<div id="qrcode_div" style="margin-top:10px;">
</div>
</body>
</html>
- 1
- 2
- 3
- 4
前往页