js COOKIE 记住帐号或者uuid

时间：2021-01-11 22:57:37

当开始接到这个任务的时候，我对cookie还是没多少了解的，而uuid的生成也是一无所知。但是当你发现这个网址http://*.com/questions/105034/how-to-create-a-guid-uuid-in-javascript，你就会有想法的。呵呵，不仅如此，还有一个网址也不错，推荐下http://www.cnblogs.com/xuzhong718/archive/2012/07/22/2600121.html

<!DOCTYPE HTML>

<html>

    <head>

        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

        <title>js COOKIE 记住帐号或者uuid</title>

    </head>

    <body>

        <script type="text/javascript">

            function guidGenerator() {

                var S4 = function() {

                    return (((1 + Math.random()) * 0x10000) | 0).toString(16).substring(1);

                };

                return (S4() + S4() + "-" + S4() + "-" + S4() + "-" + S4() + "-" + S4()    + S4() + S4());

            }

            var cookie = {};

            cookie.set = function(n, v, t) {

                var exp = new Date();

                exp.setTime(exp.getTime() + (t || 24) * 60 * 60 * 1000 * 365);

                document.cookie = n + "=" + escape(v) + ";expires=" + exp.toGMTString()    + ';path=/';

            }

            cookie.get = function(n) {

                var arr = document.cookie.match(new RegExp("(^| )" + n + "=([^;]*)(;|$)"));

                if (arr != null) {

                    return unescape(arr[2]);

                }

                return null;

            }

            var uniqueVisitorId;

            var co = cookie.get('uniqueVisitorId');

            if (co != null) {

                uniqueVisitorId = cookie.get('uniqueVisitorId');

            } else {

                uniqueVisitorId = guidGenerator();

                cookie.set('uniqueVisitorId', uniqueVisitorId);

            }

            var url = window.location.href;

            var monitorUrl = 'http://130.251.101.3:18080/monitor/add?url=' + url + '&uniqueVisitorId=' + uniqueVisitorId;

            var code = "<" + "script src='" + monitorUrl +"'></"+"script>";

            document.write(code);

        </script>

    </body>

</html>

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