//首先向大家展示的是jsp部分
<%@ 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 'choujiang.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">
<script type="text/javascript" src="jquery-2.1.4/jquery.min.js"></script>
<script type="text/javascript" src="jsp/zhuanpanchoujiang/choujiang.js"></script>
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
<style type="text/css">
#lottery{width:574px;height:584px;margin:20px auto 0;background:url(jsp/zhuanpanchoujiang/images/bg.jpg) no-repeat;padding:50px 55px;}
#lottery table td{width:142px;height:142px;text-align:center;vertical-align:middle;font-size:24px;color:#333;font-index:-999}
#lottery table td a{width:284px;height:284px;line-height:150px;display:block;text-decoration:none;}
#lottery table td.active{background-color:#ea0000;}
</style>
</head>
<body>
<div id="lottery">
<table border="0" cellpadding="0" cellspacing="0">
<tr>
<td class="lottery-unit lottery-unit-0"><img src="jsp/zhuanpanchoujiang/images/1.png"></td><!--根据需求替换自己的图片-->
<td class="lottery-unit lottery-unit-1"><img src="jsp/zhuanpanchoujiang/images/2.png"></td>
<td class="lottery-unit lottery-unit-2"><img src="jsp/zhuanpanchoujiang/images/4.png"></td>
<td class="lottery-unit lottery-unit-3"><img src="jsp/zhuanpanchoujiang/images/3.png"></td>
</tr>
<tr>
<td class="lottery-unit lottery-unit-11"><img src="jsp/zhuanpanchoujiang/images/7.png"></td>
<td colspan="2" rowspan="2"><a href="#"></a></td>
<td class="lottery-unit lottery-unit-4"><img src="jsp/zhuanpanchoujiang/images/5.png"></td>
</tr>
<tr>
<td class="lottery-unit lottery-unit-10"><img src="jsp/zhuanpanchoujiang/images/1.png"></td>
<td class="lottery-unit lottery-unit-5"><img src="jsp/zhuanpanchoujiang/images/6.png"></td>
</tr>
<tr>
<td class="lottery-unit lottery-unit-9"><img src="jsp/zhuanpanchoujiang/images/3.png"></td>
<td class="lottery-unit lottery-unit-8"><img src="jsp/zhuanpanchoujiang/images/6.png"></td>
<td class="lottery-unit lottery-unit-7"><img src="jsp/zhuanpanchoujiang/images/8.png"></td>
<td class="lottery-unit lottery-unit-6"><img src="jsp/zhuanpanchoujiang/images/7.png"></td>
</tr>
</table>
</div>
</body>
</html>
然后是js部分
$(function(){
lottery.init('lottery');
$("#lottery a").click(function(){
if (click) {
return false;
}else{
//后台获取数据
$.ajax({
url : "user/zhuanpan.do",
cache: false,
type : "POST",
async: false,
dataType : "json",
success : function(data) {
lottery.prize=data;//data的数据类型是数字类型,对应图片的下标0-11,如果data=0;则中奖的是class="lottery-unit-0"的那张图片
},
error : function(XMLHttpRequest, textStatus, errorThrown) {
alert("error");
}
});
lottery.speed=100;
roll();
click=true;
return false;
}
});
})
var lottery={
index:-1, //当前转动到哪个位置,起点位置
count:0, //总共有多少个位置
timer:0, //setTimeout的ID,用clearTimeout清除
speed:20, //初始转动速度
times:0, //转动次数
cycle:50, //转动基本次数:即至少需要转动多少次再进入抽奖环节
prize:-1, //中奖位置
init:function(id){
if ($("#"+id).find(".lottery-unit").length>0) {
$lottery = $("#"+id);
$units = $lottery.find(".lottery-unit");
this.obj = $lottery;
this.count = $units.length;
$lottery.find(".lottery-unit-"+this.index).addClass("active");
};
},
roll:function(){
var index = this.index;
var count = this.count;
var lottery = this.obj;
$(lottery).find(".lottery-unit-"+index).removeClass("active");
index += 1;
if (index>count-1) {
index = 0;
};
$(lottery).find(".lottery-unit-"+index).addClass("active");
this.index=index;
return false;
},
stop:function(index){
this.prize=index;
return false;
}
};
function roll(){
lottery.times += 1;
lottery.roll();
if (lottery.times > lottery.cycle+10 && lottery.prize==lottery.index) {
clearTimeout(lottery.timer);
lottery.prize=-1;
lottery.times=0;
click=false;
}else{
if (lottery.times<lottery.cycle) {
lottery.speed -= 10;
}else{
if (lottery.times > lottery.cycle+10 && ((lottery.prize==0 && lottery.index==7) || lottery.prize==lottery.index+1)) {
lottery.speed += 110;
}else{
lottery.speed += 20;
}
}
if (lottery.speed<40) {
lottery.speed=40;
};
lottery.timer = setTimeout(roll,lottery.speed);
}
return false;
}
var click=false;
//接下来展示的是后台
@ResponseBody
@RequestMapping(value = "zhuanpan", method = RequestMethod.POST)
public Integer zhuanpan(HttpServletRequest request){
int number = new Random().nextInt(12);//取0-11的随机数整数,如果需要加中奖率计算,可以在controller层实现
return number;
}