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Jquery 插件实现 “点击获取验证码后 60 秒内禁止重新获取(防刷新)

摘要: 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:

《Jquery 插件实现 “点击获取验证码后 60 秒内禁止重新获取(防刷新)》

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>

转载来自 https://my.oschina.net/ximidao/blog/385291

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