edit

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>修改</title>



<!-- 1jQuery的js包 -->
<script type="text/javascript" src="jquery-easyui-1.4.4/jquery.min.js"></script>
<!-- 2css资源 -->
<link rel="stylesheet" type="text/css" href="jquery-easyui-1.4.4/themes/default/easyui.css">   
<!-- 3图标资源 -->
<link rel="stylesheet" type="text/css" href="jquery-easyui-1.4.4/themes/icon.css">   
<!-- 4easyui的js包 -->
<script type="text/javascript" src="jquery-easyui-1.4.4/jquery.easyui.min.js"></script>   
  <!-- 5本地语言包 -->
<script type="text/javascript" src="jquery-easyui-1.4.4/locale/easyui-lang-zh_CN.js"></script>

</head>
<body>
修改页面


<input id="cc2" class="easyui-combobox" 
data-options="valueField:'id',textField:'text',
url:'json/combo.json'" />  

<br><br>

省:<input id="sheng" class="easyui-combobox" style="100px"
data-options="
url:'RegionServlet?parentid=0',
valueField:'regionID',
textField:'regionName',
onSelect:function(region){

$('#shi').combobox('clear');
$('#shi').combobox('reload','RegionServlet?parentid='+region.regionID);

//清理原有项
$('#qu').combobox('clear');
//清理下拉项
$('#qu').combobox('reload','RegionServlet');
}
"/>

<br><br>
市:<input id="shi" class="easyui-combobox" style="100px"
data-options="
url:'RegionServlet',
valueField:'regionID',
textField:'regionName',
onSelect:function(region){

$('#qu').combobox('clear');
$('#qu').combobox('reload','RegionServlet?parentid='+region.regionID);



}
"/>

<br><br>
区县:<input id="qu" class="easyui-combobox" style="100px"
data-options="
url:'RegionServlet',
valueField:'regionID',
textField:'regionName',

"/>


</body>
<html>

原文地址:https://www.cnblogs.com/Levi1995/p/6112158.html