Bootstrap select下拉联动（jQuery cxselect）

woniuguanjun

2017-01-04

下拉select选项多级联动实例。

cxselect插件使用方法：

1. 引入JS，
<script src="http://apps.bdimg.com/libs/jquery/1.9.1/jquery.min.js"></script>
<script src="js/jquery.cxselect.min.js"></script>

2. JS项设置。Find more here：http://code.ciaoca.com/jquery/cxselect/

<script>$('#cnMap').cxSelect({ 
 url: 'js/cityData.min.json', 
 //url: 'js/cityData.min.json', 
 selects: ['province', 'city', 'region'], 
 nodata: 'none' 
}); 
 
$('#globalMap').cxSelect({ 
 url: 'js/globalData.min.json', 
 selects: ['country', 'state', 'city', 'region'], 
 nodata: 'none' 
}); 
</script>

实例源码：

<!DOCTYPE html> 
<html> 
<head> 
 <meta charset="utf-8"> 
 <meta http-equiv="X-UA-Compatible" content="IE=edge"> 
 <meta name="viewport" content="width=device-width, initial-scale=1"> 
 <!-- 
 <link href="favicon.ico" rel="shortcut icon" type="image/x-icon" /> 
 <link href="favicon.ico" rel="Bookmark" type="image/x-icon" /> 
 --> 
 <meta name="Generator" content="EditPlus®"> 
 <meta name="Author" content=""> 
 <meta name="Keywords" content=""> 
 <meta name="Description" content=""> 
 <!-- HTML5 Shim 和 Respond.js 用于让 IE8 支持 HTML5元素和媒体查询 --> 
 <!-- 注意： 如果通过 file:// 引入 Respond.js 文件，则该文件无法起效果 --> 
 <!--[if lt IE 9]> 
 <script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script> 
 <script src="https://oss.maxcdn.com/libs/respond.js/1.3.0/respond.min.js"></script> 
 <![endif]--> 
 <title>UnionSelect</title> 
 <link href="http://apps.bdimg.com/libs/bootstrap/3.3.4/css/bootstrap.min.css" rel="stylesheet" /> 
</head> 
<body> 
<h1 align="center">下拉联动</h1> 
<div id="" class="container"> 
 <form method="post" action="" class="form-horizontal" role="form"> 
 
 <div class="form-group" id="cnMap"> 
 <label for="firstname" class="col-sm-3 control-label">全国<small> (省、市、县三级；包括提交表单的验证。)</small></label> 
 <div class="col-sm-3"> 
 <select name="province" class="province form-control" disabled="disabled" data-first-title="选择省份"></select> 
 </div> 
 <div class="col-sm-3"> 
 <select name="city" class="city form-control" disabled="disabled"></select> 
 </div> 
 <div class="col-sm-3"> 
 <select name="region" class="region form-control" disabled="disabled"></select> 
 </div> 
 </div> 
 
 <hr /> 
 
 <div class="form-group" id="globalMap"> 
 <label for="firstname" class="col-sm-4 control-label">全球<small> (国、省、市、县三级；未做表单验证。)</small></label> 
 <div class="col-sm-2"> 
 <select name="country" class="country form-control" disabled="disabled" data-first-title="选择国家"></select> 
 </div> 
 <div class="col-sm-2"> 
 <select name="state" class="state form-control" disabled="disabled"></select> 
 </div> 
 <div class="col-sm-2"> 
 <select name="city" class="city form-control" disabled="disabled"></select> 
 </div> 
 <div class="col-sm-2"> 
 <select name="region" class="region form-control" disabled="disabled"></select> 
 </div> 
 </div> 
 
<!-- 
 <h2>全国</h2> 
 <div id="cnMap"> 
 <select name="province" class="province" disabled="disabled" data-first-title="选择省份"></select> 
 <select name="city" class="city" disabled="disabled"></select> 
 <select name="region" class="region" disabled="disabled"></select> 
 </div> 
 
 <h2>全球</h2> 
 <div id="globalMap"> 
 <select name="country" class="country" disabled="disabled" data-first-title="选择国家"></select> 
 <select name="state" class="state" disabled="disabled"></select> 
 <select name="city" class="city" disabled="disabled"></select> 
 <select name="region" class="region" disabled="disabled"></select> 
 </div> 
--> 
 <br /> 
 <button id="subBut" type="submit" class="btn btn-default">提交</button> 
 </form> 
<?php 
if($_POST){ 
 echo "<br /><pre>"; 
 print_r($_POST); 
} 
?> 
</div> 
<script src="http://apps.bdimg.com/libs/jquery/1.9.1/jquery.min.js"></script> 
<script src="js/jquery.cxselect.min.js"></script> 
<script> 
$('#cnMap').cxSelect({ 
 url: 'js/cityData.min.json', 
 //url: 'js/cityData.min.json', 
 selects: ['province', 'city', 'region'], 
 nodata: 'none' 
}); 
 
$('#globalMap').cxSelect({ 
 url: 'js/globalData.min.json', 
 selects: ['country', 'state', 'city', 'region'], 
 nodata: 'none' 
}); 
 
//表单验证start 
$("#subBut").click(function(){ 
 if (!$("#cnMap .province").val() && !$("#cnMap .province").attr('disabled')) 
 { 
 alert('请选择省份 :)'); 
 $("#cnMap .province").focus(); 
 return false; 
 } else if (!$("#cnMap .city").val() && !$("#cnMap .city").attr('disabled')) { 
 alert('请选择市 :)'); 
 $("#cnMap .city").focus(); 
 return false; 
 } else if (!$("#cnMap .region").val() && !$("#cnMap .region").attr('disabled')) { 
 alert('请选择县区 :)'); 
 $("#cnMap .region").focus(); 
 return false; 
 } else { 
 return true; 
 } 
}); 
//表单验证end 
</script> 
</body> 
</html>

必须的JS文件：jquery.cxselect.js 或 jquery.cxselect.min.js(压缩版)
必须的JSON文件：cityData.min.json（全国的城市列表）和 globalData.min.json（全世界的城市列表）
这些都可以从这里下载：https://github.com/ciaoca/cxSelect

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