jquery 失效
本人用做一个二级联动下拉菜单,通过select上级地区,显示下级地区,可以当我多次下拉上级地区(select1)时,下级地区(select2)就请求不到了,就没的反应了,select2里面还保存的是上一次下拉的值
我的jsp页面是这样写的:
<script type="text/javascript" src="<%=path%>/js/jquery-1.6.2.min.js"></script>
<script type="text/javascript">
$(document).ready(function (){
$("#regionFatherid").change(function (){
var id=$("#regionFatherid").val();
//alert("chage");
if(id!=0){
$.post("<%=path%>/getRegionChildByRegionFather",{regionFatherId:id,'fresh':Math.random()},function (d){
//alert("d="+d);
//alert("if");
$("#regionChild").empty().append(d);
});
}else{
//alert("else");
$("#regionChild").empty().append("");
}
});
});
</script>
<td align="right">上级地区:</td>
<td colspan="3">
<s:select name="users.regionByRegId.regId" id="regionFatherid" onchange="findRegionChild()" list="regionList" headerKey="0" headerValue="请选择" listKey="regId" listValue="regName" theme="simple"></s:select>
</td>
</tr>
<tr>
<td align="right">下级地区:</td>
<td colspan="3">
<select id="regionChild" name="users.regionByRegFatherId.regId">
<option value=""></option>
</select>
action里面是这样写的:
public String getChildByFather() throws Exception{
List<ParameterBean> list=new ArrayList<ParameterBean>(0);
list=usersService.getRegionChildByRegionFatherId(regionFatherId);
if (list.size()>0) {
StringBuilder builder=new StringBuilder();
for (Iterator iterator = list.iterator(); iterator.hasNext();) {
ParameterBean bean = (ParameterBean) iterator.next();
builder.append("<option value='"+bean.getRegId()+"'>"+bean.getRegName()+"</option>");
}
HttpServletResponse response=ServletActionContext.getResponse();
response.setCharacterEncoding("UTF-8");
PrintWriter out=response.getWriter();
out.write(builder.toString());
out.flush();
out.close();
}
return null;
}