jsp代码：
<script type="text/javascript">
$(function(){
findCenterName();
});
</script>
<body>
<div style="margin-right: 90px">
<select name="key_domain_name" id="key_domain_name" class="btn select2me">
</select>
</div>
</body>
js代码：
function findCenterName(){
//清空原有select内的数据
$("#key_domain_name").empty();
$.ajax({
url: getRootPath() + '/data/catalog/government/catalogSearch.do?method=GetCatalogDomain',
type:"post",
dataType:"json",
success:function(data){
$("#key_domain_name").append("<option value='-1'>重点领域</option>");
//遍历 json为{id:"00",text:"aa".....},{id:"01",text:"bb".....}
$.each(data, function (index, item) {
var id = data[index].key_domain_id;
var text = data[index].key_domain_name;
$("#key_domain_name").append("<option value='"+text+"'>"+text+"</option>");
});
},
error:function(XMLHttpRequest,textStatus, errorThrown) {
// alert(errorThrown);
}
});
}