1 var random="";
2 function getMessages(button){
3 //前台倒计时
4 front(button);
5 //请求后台发送验证码
6 behind();
7 }
8
9 ///后台发送短信
10 function behind (){
11 //随机码
12 random=getRandom();
13 var tel=document.getElementById("tel").value;
14 $.post("<%=path%>/sendSmsServlet.action",{tel:tel,random:random},function(data){
15
16 });
17 }
18
19 //前台实现倒计时
20 function front(button){
21 //前台倒计时
22 var count = 60;
23 button.value = count + "s后可重新获取验证码";
24 //将按钮设置为不可点击
25 button.setAttribute("disabled", "disabled");
26 var time = setInterval(function() {
27 count--;
28 button.value = count + "s后可重新获取验证码";
29 if (count <= 0) {
30 //关闭定时器
31 clearInterval(time);
32 //改变按钮标题
33 button.value = "获取验证码";
34 button.removeAttribute("disabled");
35 }
36 }, 1000);
37 }
38
39 //获取四位随机完整码
40 function getRandom(){
41 var str="";
42 for(var i=0;i<4;i++){
43 var num=parseInt(Math.random()*1000000000%10);
44 str+=num;
45 }
46 return str;
47 }
48
