select自己定义属性值


1、问题背景

     下拉框能够传递值和内容，只是有时为了传值，还须要连带其它的值也一起传过来。假设用title属性。鼠标移到下拉框上方会显示出来，这样就会导致被暴露出来。所以，为了安全和传值方便。能够利用自己定义属性。


2、实现源代码

<%@ 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>自己定义下拉框属性值</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="<%=basePath%>/js/jquery-2.2.3.js"></script>
    <script type="text/javascript">
        $(function(){
          $("#sel").change(function(){
            var sel = $("#sel option:selected").val();
            var name = $("#sel option:selected").text();
            var child = $("#sel option:selected").attr("child");
            alert("下拉框的值："+sel+"\n"+"下拉框的内容："+name+"\n"+"下拉框属性值child："+child);
          });
        });
    </script>
  </head>

  <body>
     <div id="div-select">
        <select id="sel" style="width:200px;">
            <option value="1" child="2016010101">篮球</option>
            <option value="2" child="2016010102">足球</option>
            <option value="3" child="2016010103">铅球</option>
            <option value="4" child="2016010104">羽毛球</option>
            <option value="5" child="2016010105">乒乓球</option>
            <option value="6" child="2016010106">网球</option>
        </select>
     </div>
  </body>
</html>


3、实现结果

select自己定义属性值_属性值