本文实例讲述了jQuery短信验证倒计时功能实现方法。分享给大家供大家参考,具体如下:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>demo 短信验证码60秒,并限制次数</title>
<script src="js/time.js" type="text/javascript"></script>
</head>
<body>
<div class="input">
<input type="button" id="btn" class="btn_mfyzm" value="获取验证码" />
</div>
</body>
<script>
var wait=60*2;
document.getElementById("btn").disabled = false;
function time(o) {
if (wait == 0) {
o.removeAttribute("disabled");
o.value="免费获取验证码";
wait = 60*2;
} else {
o.setAttribute("disabled", true);
o.value="重新发送(" + wait + ")";
wait--;
setTimeout(function() {
time(o)
},
1000)
}
}
document.getElementById("btn").onclick=function(){time(this);}
</script>
</html>
time.js内容如下:
var InterValObj; //timer变量,控制时间
var count = 60; //间隔函数,1秒执行
var curCount;//当前剩余秒数
var code = ""; //验证码
var codeLength = 6;//验证码长度
function sendMessage() {
curCount = count;
var dealType; //验证方式
var uid=$("#uid").val();//用户uid
if ($("#phone").attr("checked") == true) {
dealType = "phone";
}
else {
dealType = "email";
}
//产生验证码
for (var i = 0; i < codeLength; i++) {
code += parseInt(Math.random() * 9).toString();
}
//设置button效果,开始计时
$("#btnSendCode").attr("disabled", "true");
$("#btnSendCode").val("请在" + curCount + "秒内输入验证码");
InterValObj = window.setInterval(SetRemainTime, 1000); //启动计时器,1秒执行一次
//向后台发送处理数据
$.ajax({
type: "POST", //用POST方式传输
dataType: "text", //数据格式:JSON
url: 'Login.ashx', //目标地址
data: "dealType=" + dealType +"&uid=" + uid + "&code=" + code,
error: function (XMLHttpRequest, textStatus, errorThrown) { },
success: function (msg){ }
});
}
//timer处理函数
function SetRemainTime() {
if (curCount == 0) {
window.clearInterval(InterValObj);//停止计时器
$("#btnSendCode").removeAttr("disabled");//启用按钮
$("#btnSendCode").val("重新发送验证码");
code = ""; //清除验证码。如果不清除,过时间后,输入收到的验证码依然有效
}
else {
curCount--;
$("#btnSendCode").val("请在" + curCount + "秒内输入验证码");
}
}
希望本文所述对大家jQuery程序设计有所帮助。