Jquery插件实现点击获取验证码后60秒内禁止重新获取

通过jquery.cookie.js插件可以快速实现“点击获取验证码后60秒内禁止重新获取（防刷新）”的功能

效果图：

先到官网（http://plugins.jquery.com/cookie/）下载cookie插件，放到相应文件夹，代码如下：


<!DOCTYPE html>

<html>

<head>

<meta charset="utf-8">

<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">

<title>Examples</title>

<meta name="description" content="">

<meta name="keywords" content="">

<script src="http://apps.bdimg.com/libs/jquery/1.11.1/jquery.min.js" ></script>

<script src="jquery.cookie.js" ></script>

<style type="text/css">

    * {margin: 0; padding: 0; font-family: "Microsoft Yahei";}

    .captcha-box {width: 360px; height: 34px; margin: 30px; padding: 30px; border: #956E6F 1px dashed; border-radius: 5px; background-color: #FAF2F2;}

    #mobile { float: left; width: 180px; height: 32px; border: #e5e5e5 1px solid; line-height: 32px; text-indent: 8px; outline: none;}

    #getting {float: left; height: 34px; margin-left: -1px; padding: 0 18px; text-align: center;  line-height: 34px; border: #e5e5e5 1px solid; background: linear-gradient(0deg, #f4f2f2 0%,#fbf9f9 100%); cursor: pointer; outline: none;}

</style>

<script>

    $(function(){

        /*仿刷新：检测是否存在cookie*/

        if($.cookie("captcha")){

            var count = $.cookie("captcha");

            var btn = $('#getting');

            btn.val(count+'秒后可重新获取').attr('disabled',true).css('cursor','not-allowed');

            var resend = setInterval(function(){

                count--;

                if (count > 0){

                    btn.val(count+'秒后可重新获取').attr('disabled',true).css('cursor','not-allowed');

                    $.cookie("captcha", count, {path: '/', expires: (1/86400)*count});

                }else {

                    clearInterval(resend);

                    btn.val("获取验证码").removeClass('disabled').removeAttr('disabled style');

                }

            }, 1000);

        }

        /*点击改变按钮状态，已经简略掉ajax发送短信验证的代码*/

        $('#getting').click(function(){

            var btn = $(this);

            var count = 60;

            var resend = setInterval(function(){

                count--;

                if (count > 0){

                    btn.val(count+"秒后可重新获取");

                    $.cookie("captcha", count, {path: '/', expires: (1/86400)*count});

                }else {

                    clearInterval(resend);

                    btn.val("获取验证码").removeAttr('disabled style');

                }

            }, 1000);

            btn.attr('disabled',true).css('cursor','not-allowed');

        });

    });

</script>

</head>

<body>

    <div class="captcha-box">

        <input type="text" id="mobile" maxlength="11" placeholder="请输入手机号码">

        <input type="button" id="getting" value="获取验证码">

    </div>

</body>

</html>

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