利用jquery包将字符串变成二维码
将一个字符串(可以是中文,在生成二维码图片之前将中文转码)生成二维码图片,如果想要带log的二维码,可以在生成后的二维码中间部位自己添加一个小log,log图片不要太大,不然就扫描不出内容了。
<html xmlns="http://www.w3.org/1999/xhtml"><head> <title></title> <script src="js/jquery-1.8.3.js" type="text/javascript"></script> <script src="js/qrcode.js" type="text/javascript"></script> <script src="js/jquery.qrcode.js" type="text/javascript"></script> <script type="text/javascript"> $(function () { $("#bt").bind("click", function () { text = $("#text").val(); $("#div_div").qrcode(utf16to8(text)); }) }) 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" /><input type="button" value="shengc" id="bt" /><div id="div_div" style="width:400px;height:400px;border:1px solid #000;"></div></body></html>
js包下载http://download.csdn.net/detail/anxin591025/6254607