jquery+ajax实现倒计时动态显示效果。

 

前台页面:

 

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">
   
    <title>My JSP 'time_view2.jsp' starting page</title>
   
 <meta http-equiv="pragma" content="no-cache">
 <meta http-equiv="cache-control" content="no-cache">
 <meta http-equiv="expires" content="0">   
 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
 <meta http-equiv="description" content="This is my page">
 <!--
 <link rel="stylesheet" type="text/css" href="styles.css">
 -->

<script type="text/javascript" src="../js/jquery/jquery-1.5.1.min.js"></script>

  </head>
 
<script>
//倒计时显示方法
function getTimeNum(){
  $.ajax({
  url: "/event/2012flower/test.jsp?t==="+new Date(),
  type: "GET",
     dataType: "text",
     success: function(data){
      //alert("time="+data);
      $("#showTimes").html(""+data);
     }
 });
}

</script>
 
  <body>

 

<div id="showTimes"></div>


 <script>
window.setInterval("getTimeNum()", 1000);
</script>

  </body>
</html>

 

 

后台服务页面:

 

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 <%
 
        //当前时间毫秒数
    Long current_time1=System.currentTimeMillis();
  
  //结束时间毫秒数
  Long  end_time2=1337875200000l;
  
  //计算时间差
  Long time2=end_time2-current_time1;
       
        //转换为秒数
        int second=(int)(time2/1000); //剩余总秒数
 
     //将秒数专为天数
 
      int s = second % 60; // 秒
      int  mi = (second - s) / 60 % 60; // 分钟
      int h =  ((second - s) / 60 - mi ) / 60 % 24; // 小时
      int d =  (((second - s) / 60 - mi ) / 60 - h ) / 24; // 天
     
      String ret= "剩余:" + d + "天" + h + "小时" + mi + "分钟" + s + "秒";
      //System.out.println(ret);
 
   %>
  
   <%=ret %>

 

 

 

 

 

 

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